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2 votes

1 answers

72 views

How to determine a certain linux distribution release is RVA20/RVA23 compatible?

For example, Ubuntu 25.10 plan to raise the required RISC-V ISA profile family to RVA23. How can I verify if this release is RVA23 compatible? Is there any efficient test tools I can use? I know that RVA20/23 profile includes a lot of system components like compiler, kernel etc. If no tool is availa...

                                  For example, Ubuntu 25.10 plan to raise the required RISC-V ISA profile family to RVA23. How can I verify if this release is RVA23 compatible? Is there any efficient test tools I can use?

I know that RVA20/23 profile includes a lot of system components like compiler, kernel etc. If no tool is available for test its compatible for RVA20/23, should I just check each of the necessary components like gcc, kernel, llvm? Is there a list for checking?

Mr.D (21 rep)

Jul 30, 2025, 07:46 AM • Last activity: Aug 1, 2025, 07:13 AM

0 votes

1 answers

84 views

bash - list of breaking change

bash compatibility

I know bash tries very hard to keep new versions compatible with previous ones. However they sometime introduced (minor, but still) breaking changes: for exemple when we could no longer have : `{ foo }` # which now hangs but instead had to have : `{ foo ;}` # ie have a `;` or a newline before the cl...

                                  I know bash tries very hard to keep new versions compatible with previous ones.

However they sometime introduced (minor, but still) breaking changes:

for exemple when we could no longer have :  { foo } # which now hangs

but instead had to have : { foo ;}  # ie have a ; or a newline before the closing }

(not sure which version introduced that, it was more than 20 years ago ^^)

My question is : how to find out which other "breaking" changes occured along the whole history of bash updates?

Olivier Dulac (6580 rep)

Apr 25, 2025, 07:11 AM • Last activity: Apr 25, 2025, 07:32 AM

-2 votes

3 answers

205 views

How to install CASA (Common Astronomy Software Applications)

software-installation kali-linux compatibility

I need help. I've tried to install CASA (Common Astronomy Software Applications) [from the NRAO website][1] that I will need to use for a research, but I'm having trouble to configure it. I followed this example: [CASA installation][2] and I wonder if this installation is compatible with Kali Linux...

                                  I need help. I've tried to install CASA (Common Astronomy Software Applications) from the NRAO website  that I will need to use for a research, but I'm having trouble to configure it.

I followed this example: CASA installation 
and I wonder if this installation is compatible with Kali Linux that I have on my laptop.

Linux is not my first OS, I spend most of my time on Windows, but I'm learning for practical reasons imposed from the research.

I would be happy to share more info or eventually if someone wants to help me to set it up.
I don't understand if this CASA software is also available and launchable as library through Python, or it has its own software once installed.
I managed to complete all the process of installation according to the video, but still it doesn't launch.

Physics lover (1 rep)

Mar 12, 2025, 07:48 PM • Last activity: Apr 11, 2025, 08:32 AM

0 votes

1 answers

4494 views

How to install printer drivers on Arch Linux when there is no official Arch package provided?

arch-linux drivers printing compatibility

I am trying to print to Epson WorkForce WF-2650 All-In-One Inkjet PRinter from my Arch Linux desktop. Both the desktop and the printer are in network range ```192.168.0.1/24```. 1. Initialize Printer Service The first thing I did was to install CUPS. ``` sudo pacman -Syu cups cups-pdf ``` Then I ena...

I am trying to print to Epson WorkForce WF-2650 All-In-One Inkjet PRinter from my Arch Linux desktop. Both the desktop and the printer are in network range

.168.0.1/24

. 1. Initialize Printer Service The first thing I did was to install CUPS.

sudo pacman -Syu cups cups-pdf

Then I enabled then started the service.

sudo systemctl enable cups
sudo systemctl start cups

2. Add Printer After setting up the printing service I tried to add the printer via Gnome Print. I was able to locate the printer by ip but as soon as clicked add I got

to add new printer.

Since that failed I moved to the CUPS web page on

:631

. On navigating

> Printers > Add Printer

I saw my printer in

Network Printers

. When I hit

it identified the connection as

://192.168.0.156:515/PASSTHRU

. However there were only two models to choose from:

-Pin Series

and

-Pin Series

which do not correspond to my printer. So I fell back to the Generic drivers. I tried printing a small PDF file with the

IPP Everywhere Printer

and

PDF Printer

drivers but neither of them printed properly. In both cases I got plaintext gibberish. Command

-p WF2650 -E -v lpd://192.168.0.156:515 -m everywhere

did not work either, so I started searching for functional drivers. 3. Find Printer Drivers When I searched the official repository , I only found one package for scanner drivers and no printer drivers. Nonetheless I did try

pacman -Syu imagescan

and it did succeed but no printer drivers. Then I visited AUR and found a lot of Epson-related packages . There were two AURs and I wasn't sure which one covered my printer so I tried both. https://aur.archlinux.org/packages/epson-inkjet-printer-escpr https://aur.archlinux.org/packages/epson-inkjet-printer-escpr2 For both AURs I downloaded the snapshot containing the

, extracted then cd'd to it. Then I downloaded the source in that directory and tried to install each. Unfortunately both attempts failed.

sudo pacman -U ./epson-inkjet-printer-escpr2-1.2.3-1.tar.gz 
loading packages...
error: missing package metadata in ./epson-inkjet-printer-escpr2-1.2.3-1.tar.gz
error: './epson-inkjet-printer-escpr2-1.2.3-1.tar.gz': invalid or corrupted package

sudo pacman -U ./epson-inkjet-printer-escpr-1.8.0-1.src.rpm 
loading packages...
error: missing package metadata in ./epson-inkjet-printer-escpr-1.8.0-1.src.rpm
error: './epson-inkjet-printer-escpr-1.8.0-1.src.rpm': invalid or corrupted package

Then I went to the official Epson download page and searched . Unfortunately only

and

packages are provided . I considered converting one of the two into a compatible format but the site suggested against it. >If you want to use the driver other than the above distribution, >we recommend that you build from the source file and install it. Is it okay install the

package with

on Arch? Would it break my system? If it is not an option what should I do from here?

iso790427 (9 rep)

Sep 19, 2023, 03:36 PM • Last activity: Apr 10, 2025, 09:01 AM

1 votes

3 answers

414 views

How close are Leap 15.3 and SLE 15 SP3? Can I use one's rpms with the other?

rpm opensuse distributions sles compatibility

Apologies if this is a stoopid question. With some effort I have managed to install openSUSE Leap 15.3 on my laptop. As you may know 15.3 is rather different to earlier releases in that it apparently "uses binaries from" SLE 15 SP3. Unfortunately, another difference appears to be that many packages...

                                  Apologies if this is a stoopid question.

With some effort I have managed to install openSUSE Leap 15.3 on my laptop. As you may know 15.3 is rather different to earlier releases in that it apparently "uses binaries from" SLE 15 SP3. Unfortunately, another difference appears to be that many packages which were there all the way up to 15.2 appear to be missing, I've seen the line [There is no official package available for openSUSE Leap 15.3](https://software.opensuse.org/package/llvm)  (this example is llvm) way more often than I care.

So my question: Is it generally possible / safe to use SLE 15 SP3 repositories instead? (I see that one of the automatic update repositories is indeed SLE.) I daren't simply try for fear of damaging my system.

loopy walt (113 rep)

Aug 19, 2021, 07:42 PM • Last activity: Jan 28, 2025, 07:39 AM

0 votes

1 answers

209 views

How to format the hard drive so it is compatible across windows, macOS and linux itself on linux

linux filesystems hard-disk macos compatibility

I formatted my hard drive using the `mkfs.exfat -n "HDD" /dev/sda1`, but it is not recognized on macOS. If I do that on macOS, it is readable on Linux, but I want to be able to format on Linux itself without relying on partitioning of macOS.

                                  I formatted my hard drive using the mkfs.exfat -n "HDD" /dev/sda1, but it is not recognized on macOS.
If I do that on macOS, it is readable on Linux, but I want to be able to format on Linux itself without relying on partitioning of macOS.
                                

aljustiet (3 rep)

Oct 24, 2024, 07:39 PM • Last activity: Oct 24, 2024, 08:00 PM

8 votes

3 answers

751 views

Is there an equivalent of caniuse for commands on posix systems?

shell command-line compatibility

I'm thinking about using a callout to the `jq` command in a utility script I'm writing, rather than parsing JSON manually. In order to make the script as portable as possible, I want to know which flavors of Unix/Linux/MacOS/WSL/etc support this command without any additional package installation. L...

                                  I'm thinking about using a callout to the jq command in a utility script I'm writing, rather than parsing JSON manually. 

In order to make the script as portable as possible, I want to know which flavors of Unix/Linux/MacOS/WSL/etc support this command without any additional package installation. 

Likewise, in the past, I've found that some scripts use call-outs to wget, which is missing in at least one flavor by default.  

That got me thinking: Is there any sort of tool that tells people whether it's "safe" in this way to use an arbitrary command in their scripts? Ideally, it would act like the caniuse site  by showing which major flavors do and don't support a command in their default shells. 

=== 

EDIT: With thanks to user Kusalananda for pointing out that my examples aren't POSIX commands, I changed the title to avoid mislabeling them as such.

Viscountess of the Junkyard (83 rep)

Jul 19, 2024, 09:18 AM • Last activity: Jul 27, 2024, 10:49 PM

-1 votes

2 answers

530 views

dnf won't let me overwrite or change packages

software-installation dnf compatibility llvm

I want to do something that is supposed to be simple in any package manager, install a package, in my case it is this specifically `lib64MLIRVectorToSPIRV13`. ```js LC_ALL=C dnf install lib64MLIRVectorToSPIRV13 ``` The problem is that a `yum` dependency was installed, and it is not possible to unins...

I want to do something that is supposed to be simple in any package manager, install a package, in my case it is this specifically lib64MLIRVectorToSPIRV13.

LC_ALL=C dnf install lib64MLIRVectorToSPIRV13

The problem is that a yum dependency was installed, and it is not possible to uninstall it, because it is supposedly from the system, while I am using dnf. I couldn't run yum, because it was missing crypto symbols (and I couldn't migrate it to Python 3), so what I did was simply make a symbolic link from dnf to yum. Leaving that topic aside, what I want is to be able to overwrite, change, remove or reinstall the packages that are interfering in order to install lib64MLIRVectorToSPIRV13 Yes, I can install all the packages one by one, although it would be better with the package manager, unless there is a package on the Internet that contains all of the ___LLVM 13___. But I get this error...

Running transaction check
Transaction check succeeded.
Running transaction test
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: Transaction test error:
  file /lib64/libstdc++.so.6 from install of lib64stdc++6-11.2.0-2.x86_64 conflicts with file from package libstdc++-4.8.5-44.el7.x86_64
  file /usr/lib64/libncursesw.so.6 conflicts between attempted installs of lib64ncursesw6-6.3-1.20211219.2.x86_64 and lib64ncursesw6-6.3-1.20211219.2.x86_64

# History of my operating system I'm using a 2006 Commodore purchased at _Garbarino_ shopping.

CPU~Dual core Pentium E5700 (-MCP-) speed/max~2611/2965 MHz Kernel~5.7.2-lxpup64 x86_64 Up~7:52 Mem~1167.9/1990.8MB HDD~95.6GB(73.6% used) Procs~155 Client~Shell inxi~2.3.8

The system I use is _LxPupSc64 20.06_, which is _PuppyLinux_, in turn based on _WOFF_ and Slackware, with a modification so that it can support various package managers. How could I install another package manager? The way I managed to install the package manager was by downloading each missing package from the ___pkgs.org___ page. The package manager that I was able to install was pacman from _ArchLinux_, then since the _Nouveau_ driver no longer starts because the system was updated, I installed another package manager, which is dnf. I couldn't install _apt-get_ or _snapd_, or any package that uses _systemd_, since _PuppyLinux_ also works without sudo. Log:

Last metadata expiration check: 0:05:38 ago on Mon Mar 25 06:52:00 2024.
Dependencies resolved.
=========================================================================================================
 Package                                            Arch        Version               Repository    Size
=========================================================================================================
Installing:
 lib64MLIRVectorToSPIRV13                           x86_64      13.0.0-1              release       33 k
Installing dependencies:
 cross-aarch64-openmandriva-linux-gnu-libc          x86_64      6:2.34-6              release       62 M
 lib64LLVMDemangle13                                x86_64      13.0.0-1              release      110 k
 lib64LLVMSupport13                                 x86_64      13.0.0-1              release      806 k
 lib64MLIRAffine13                                  x86_64      13.0.0-1              release      162 k
 lib64MLIRAnalysis13                                x86_64      13.0.0-1              release       84 k
 lib64MLIRCallInterfaces13                          x86_64      13.0.0-1              release       10 k
 lib64MLIRControlFlowInterfaces13                   x86_64      13.0.0-1              release       18 k
 lib64MLIRDataLayoutInterfaces13                    x86_64      13.0.0-1              release       28 k
 lib64MLIRDialectUtils13                            x86_64      13.0.0-1              release       26 k
 lib64MLIRIR13                                      x86_64      13.0.0-1              release      483 k
 lib64MLIRInferTypeOpInterface13                    x86_64      13.0.0-1              release       15 k
 lib64MLIRLinalg13                                  x86_64      13.0.0-1              release      701 k
 lib64MLIRLoopAnalysis13                            x86_64      13.0.0-1              release      139 k
 lib64MLIRMath13                                    x86_64      13.0.0-1              release       47 k
 lib64MLIRMemRef13                                  x86_64      13.0.0-1              release      192 k
 lib64MLIRMemRefUtils13                             x86_64      13.0.0-1              release       12 k
 lib64MLIRPDL13                                     x86_64      13.0.0-1              release       90 k
 lib64MLIRPDLInterp13                               x86_64      13.0.0-1              release      118 k
 lib64MLIRPDLToPDLInterp13                          x86_64      13.0.0-1              release       90 k
 lib64MLIRParser13                                  x86_64      13.0.0-1              release      115 k
 lib64MLIRPass13                                    x86_64      13.0.0-1              release      102 k
 lib64MLIRPresburger13                              x86_64      13.0.0-1              release       34 k
 lib64MLIRRewrite13                                 x86_64      13.0.0-1              release      122 k
 lib64MLIRSCF13                                     x86_64      13.0.0-1              release      113 k
 lib64MLIRSPIRV13                                   x86_64      13.0.0-1              release      698 k
 lib64MLIRSPIRVConversion13                         x86_64      13.0.0-1              release       43 k
 lib64MLIRSideEffectInterfaces13                    x86_64      13.0.0-1              release       13 k
 lib64MLIRStandard13                                x86_64      13.0.0-1              release      237 k
 lib64MLIRSupport13                                 x86_64      13.0.0-1              release       56 k
 lib64MLIRTensor13                                  x86_64      13.0.0-1              release      109 k
 lib64MLIRTransformUtils13                          x86_64      13.0.0-1              release      231 k
 lib64MLIRVector13                                  x86_64      13.0.0-1              release      353 k
 lib64MLIRVectorInterfaces13                        x86_64      13.0.0-1              release       11 k
 lib64MLIRViewLikeInterface13                       x86_64      13.0.0-1              release       18 k
 lib64ncursesw6                                     x86_64      6.3-1.20211219.2      release      173 k
 lib64stdc++6                                       x86_64      11.2.0-2              release      647 k
Installing weak dependencies:
 cross-aarch64-openmandriva-linux-gnu-binutils      x86_64      2.37-1                release      2.7 M
 cross-aarch64-openmandriva-linux-gnu-gcc           x86_64      11.2.0-2              release       86 M

Transaction Summary
=========================================================================================================
Install  39 Packages

Total size: 157 M
Installed size: 1.5 G
Is this ok [y/N]: y
Downloading Packages:
[SKIPPED] cross-aarch64-openmandriva-linux-gnu-binutils-2.37-1-omv4050.x86_64.rpm: Already downloaded   
[SKIPPED] cross-aarch64-openmandriva-linux-gnu-gcc-11.2.0-2-omv4050.x86_64.rpm: Already downloaded      
[SKIPPED] cross-aarch64-openmandriva-linux-gnu-libc-2.34-6-omv4003.x86_64.rpm: Already downloaded       
[SKIPPED] lib64LLVMDemangle13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                           
[SKIPPED] lib64LLVMSupport13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                            
[SKIPPED] lib64MLIRAffine13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                             
[SKIPPED] lib64MLIRAnalysis13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                           
[SKIPPED] lib64MLIRCallInterfaces13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                     
[SKIPPED] lib64MLIRControlFlowInterfaces13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded              
[SKIPPED] lib64MLIRDataLayoutInterfaces13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded               
[SKIPPED] lib64MLIRDialectUtils13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                       
[SKIPPED] lib64MLIRIR13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                                 
[SKIPPED] lib64MLIRInferTypeOpInterface13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded               
[SKIPPED] lib64MLIRLinalg13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                             
[SKIPPED] lib64MLIRLoopAnalysis13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                       
[SKIPPED] lib64MLIRMath13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                               
[SKIPPED] lib64MLIRMemRef13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                             
[SKIPPED] lib64MLIRMemRefUtils13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                        
[SKIPPED] lib64MLIRPDL13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                                
[SKIPPED] lib64MLIRPDLInterp13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                          
[SKIPPED] lib64MLIRPDLToPDLInterp13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                     
[SKIPPED] lib64MLIRParser13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                             
[SKIPPED] lib64MLIRPass13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                               
[SKIPPED] lib64MLIRPresburger13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                         
[SKIPPED] lib64MLIRRewrite13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                            
[SKIPPED] lib64MLIRSCF13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                                
[SKIPPED] lib64MLIRSPIRV13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                              
[SKIPPED] lib64MLIRSPIRVConversion13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                    
[SKIPPED] lib64MLIRSideEffectInterfaces13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded               
[SKIPPED] lib64MLIRStandard13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                           
[SKIPPED] lib64MLIRSupport13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                            
[SKIPPED] lib64MLIRTensor13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                             
[SKIPPED] lib64MLIRTransformUtils13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                     
[SKIPPED] lib64MLIRVector13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                             
[SKIPPED] lib64MLIRVectorInterfaces13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                   
[SKIPPED] lib64MLIRVectorToSPIRV13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                      
[SKIPPED] lib64MLIRViewLikeInterface13-13.0.0-1-omv4050.x86_64.rpm: Already downloaded                  
[SKIPPED] lib64ncursesw6-6.3-1.20211219.2-omv4050.x86_64.rpm: Already downloaded                        
[SKIPPED] lib64stdc++6-11.2.0-2-omv4050.x86_64.rpm: Already downloaded                                  
Running transaction check
Transaction check succeeded.
Running transaction test
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: Transaction test error:
  file /lib64/libstdc++.so.6 from install of lib64stdc++6-11.2.0-2.x86_64 conflicts with file from package libstdc++-4.8.5-44.el7.x86_64
  file /usr/lib64/libncursesw.so.6 conflicts between attempted installs of lib64ncursesw6-6.3-1.20211219.2.x86_64 and lib64ncursesw6-6.3-1.20211219.2.x86_64

ArtEze (137 rep)

Mar 25, 2024, 10:17 AM • Last activity: Mar 26, 2024, 08:31 AM

0 votes

0 answers

58 views

How to gracefully handle differences in command options between different versions?

shell-script command options compatibility

Inspired by [What is the difference between “base64 -b0” in macOS versions prior to macOS 13 (Ventura) and “base64 -i” in macOS 13 (Ventura)?][1] Are there common ways to avoid the script breaking on a system with a different version of a command, at least when you know what the differences are? Wou...

                                  Inspired by What is the difference between “base64 -b0” in macOS versions prior to macOS 13 (Ventura) and “base64 -i” in macOS 13 (Ventura)? 

Are there common ways to avoid the script breaking on a system with a different version of a command, at least when you know what the differences are? Would checking the command --version or --help output and calling it with different options make sense?

typo (239 rep)

Feb 6, 2024, 04:57 AM

1 votes

1 answers

716 views

How can I build an older GCC version (8.5.0) on a newer Linux distribution (Devuan Excalibur/Debian Trixie)?

compiling gcc compatibility devuan

If I download and try to build GCC 8.x on a newer machine, e.g. Devuan Excalibur GNU/Linux (i.e. Debian Trixie without systemd) - this fails, with the error going something like this: ``` libstdc++.so.6: version `GLIBCXX_3.4.30' not found ``` If I manually copy my system's `libstdc++6.so` over the f...

If I download and try to build GCC 8.x on a newer machine, e.g. Devuan Excalibur GNU/Linux (i.e. Debian Trixie without systemd) - this fails, with the error going something like this:

libstdc++.so.6: version `GLIBCXX_3.4.30' not found

If I manually copy my system's libstdc++6.so over the file missing the relevant [?] - and repeat the process a few times - I get to a different error:

make: Entering directory '/usr/local/src/gcc-8.5.0/x86_64-pc-linux-gnu/32/libitm'
In file included from /usr/include/linux/fs.h:19,
                 from ../../.././libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc:68:
/usr/include/linux/mount.h:96:6: error: multiple definition of ‘enum fsconfig_command’
 enum fsconfig_command {
      ^~~~~~~~~~~~~~~~
In file included from ../../.././libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc:55:
/usr/local/src/gcc-8.5.0/host-x86_64-pc-linux-gnu/gcc/include-fixed/sys/mount.h:249:6: note: previous definition here
 enum fsconfig_command
      ^~~~~~~~~~~~~~~~
In file included from /usr/include/linux/fs.h:19,
                 from ../../.././libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc:68:
/usr/include/linux/mount.h:130:8: error: redefinition of ‘struct mount_attr’
 struct mount_attr {
        ^~~~~~~~~~
In file included from ../../.././libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc:55:
/usr/local/src/gcc-8.5.0/host-x86_64-pc-linux-gnu/gcc/include-fixed/sys/mount.h:219:8: note: previous definition of ‘struct mount_attr’
 struct mount_attr
        ^~~~~~~~~~

which is weird, but perhaps my fault for trying to force the library version. Anyway - how can I GCC 8.5.0 to actually build on my machine? Note: * The configuration is: ./configure --disable-bootstrap --enable-languages=c,c++. * Any additional information will be provided per request.

einpoklum (10753 rep)

Dec 23, 2023, 09:31 PM • Last activity: Jan 26, 2024, 07:00 PM

0 votes

1 answers

369 views

Are FreeBSD binaries compatible with macOS?

freebsd macos binary compatibility

Since FreeBSD and macOS (OS X) are very similar to each other, can programs written for FreeBSD run on macOS? And if a program can't, then would it be possible to make it work?

                                  Since FreeBSD and macOS (OS X) are very similar to each other, can programs written for FreeBSD run on macOS? And if a program can't, then would it be possible to make it work?
                                

Bunabyte (111 rep)

Nov 5, 2023, 05:10 PM • Last activity: Jan 4, 2024, 07:54 PM

1 votes

3 answers

843 views

Integrate a younger qt version in an older yocto release

embedded yocto compatibility qt5

Our project is based on the meanwhile outdated yocto *warrior*, which was first modified by the vendor of our SoM. Then we integrated the FreeScale/NXP kernel into it because the mainline kernel did not support GPU functionality we needed. It has been quite a ride to get this working, but now there...

                                  Our project is based on the meanwhile outdated yocto *warrior*, which was first modified by the vendor of our SoM. Then we integrated the FreeScale/NXP kernel into it because the mainline kernel did not support GPU functionality we needed.

It has been quite a ride to get this working, but now there is need to switch from qt 5.12 as included in our *warrior* to qt 5.15 (LTS). We want to avoid switching to a new yocto release, but only changing the checkout of the meta-qt5 layer leads to bitbake problems like

    ERROR: ParseError at meta-qt5/recipes-qt/qt5/qtwebengine_git.bb:83: Could not inherit file classes/features_check.bbclass

and I expect this to be only the first of a series of incompatibilities, so I'm asking myself what would be the best approach to the problem.

Should I start my own meta-qt5 branch, changing the recipes to use qt 5.15.8 and only  cherry-pick commits from current meta-qt5 branches?

Philippos (13680 rep)

Feb 24, 2022, 10:49 AM • Last activity: Nov 9, 2023, 02:22 PM

0 votes

1 answers

196 views

tracking linux-firmware.git and backwards kernel compatibility

linux linux-kernel firmware compatibility

I've been tracking the upstream Linux firmware repo in `/lib/firmware` on a couple of machines, doing very periodic updates of that tree. I *think* I saw a firmware loading error booting an older kernel on the machine where I did a git-pull last week. Does that repository have a policy about backwar...

                                  I've been tracking the upstream Linux firmware repo in /lib/firmware on a couple of machines, doing very periodic updates of that tree.

I *think* I saw a firmware loading error booting an older kernel on the machine where I did a git-pull last week.

Does that repository have a policy about backwards compatibility with older kernels, or is that a non-issue (e.g.) because all the kernel does is load a binary file onto the target device using a standard interface that probably hasn't changed since a long time?

RJVB (254 rep)

Oct 31, 2023, 10:46 PM • Last activity: Nov 1, 2023, 06:22 AM

76 votes

2 answers

19982 views

What does it mean to be "sh compatible"?

shell compatibility

I've seen the phrase "sh compatible" used usually in reference to shells. I'm not sure if it also applies to the programs that might be run from within shells. What does it mean for a shell or other program to be "sh compatible"? What would it mean to be "sh incompatible"? Edit: This question asking...

                                  I've seen the phrase "sh compatible" used usually in reference to shells. I'm not sure if it also applies to the programs that might be run from within shells.

What does it mean for a shell or other program to be "sh compatible"? What would it mean to be "sh incompatible"?

Edit:
This question asking the difference between bash and sh is very relevant:
Difference between sh and bash 

I'd still like a direct answer to what it means to be "sh compatible". A reasonable expectation might be that "sh compatible" means "implements the Shell Command Language" but then why are there so many "sh compatible" shells and why are they different?
                                

Praxeolitic (1688 rep)

Jul 20, 2014, 12:09 AM • Last activity: Sep 21, 2023, 09:04 PM

1 votes

0 answers

62 views

Are KeePassXC and KeePass Solaris-compatible?

solaris compatibility keepassx keepassxc

I wanted to know whether [KeePassXC][1] and [KeePass][2] are compatible with Solaris (I am using Solaris 11.4.26.75.4 (sun4v / sparc architecture)). I would need to use only the KeePassXC/KeePass command line interfaces, the KeePassXC/KeePass GUIs are not necessary. I do not have admin rights / sudo...

                                  I wanted to know whether KeePassXC  and KeePass  are compatible with Solaris (I am using Solaris 11.4.26.75.4 (sun4v / sparc architecture)). I would need to use only the KeePassXC/KeePass command line interfaces, the KeePassXC/KeePass GUIs are not necessary.

I do not have admin rights / sudo access, so I cannot install the software myself, but I may ask the responsible unix support team (which has admin access) to attempt the installation. However, before doing that, I wanted to ask regarding the Solaris compatibility here in the forum.

Under the respective download pages, Solaris is not listed among the supported OS.

**KeePassXC:** can be built from source , but again Solaris is not included as a supported OS on the Building KeePassXC wiki page (see Required Dependencies) .

**KeePass:** Googling yields a few links that might indicate Solaris compatibility (Forbes article 1 (July 2023) , Forbes article (March 2023) , KeePassX forum link ), but I am not 100% certain.

**Question: Can KeePassXC (preferred if possible) and/or KeePass be successfully built/installed from source and used on Solaris? Do you maybe know any tests/links explicitly giving this information?**

silence_of_the_lambdas (111 rep)

Sep 19, 2023, 09:56 AM • Last activity: Sep 19, 2023, 11:04 AM

0 votes

1 answers

42 views

I'm trying to make a wifi adapter with a old chipset

linux wifi compatibility

I want to know if a Ralink RT3070L chip has packet injection, monitor mode, and is compatible with Linux.

                                  I want to know if a Ralink RT3070L chip has packet injection, monitor mode, and is compatible with Linux.
                                

vikingmichael (1 rep)

Aug 14, 2023, 07:29 PM • Last activity: Aug 15, 2023, 08:06 PM

1 votes

1 answers

819 views

Why does the Linux kernel support "umount /"?

mount linux-kernel compatibility

Why does Linux support this: umount / Why would anyone write that, instead of this: mount / -oremount,ro I'm looking at the kernel code here: if (&mnt->mnt == current->fs->root.mnt && !(flags & MNT_DETACH)) { /* * Special case for "unmounting" root ... * we just try to remount it readonly. */ if (!n...

                                  Why does Linux support this:

    umount /

Why would anyone write that, instead of this:

    mount / -oremount,ro

I'm looking at the kernel code here:

	if (&mnt->mnt == current->fs->root.mnt && !(flags & MNT_DETACH)) {
		/*
		 * Special case for "unmounting" root ...
		 * we just try to remount it readonly.
		 */
		if (!ns_capable(sb->s_user_ns, CAP_SYS_ADMIN))
			return -EPERM;
		down_write(&sb->s_umount);
		if (!sb_rdonly(sb))
			retval = do_remount_sb(sb, SB_RDONLY, NULL, 0);

https://elixir.bootlin.com/linux/v4.18/source/fs/namespace.c#L1612 
                                

sourcejedi (53222 rep)

Sep 3, 2018, 09:51 AM • Last activity: Jul 20, 2023, 03:09 PM

8 votes

2 answers

1613 views

Should the use of /etc/mtab now be considered deprecated?

linux proc compatibility

I'm curious about the file or symlink `/etc/mtab`. I believe [this is a legacy mechanism][1]. On every modern linux I've used this is a symbolic link to `/proc/mounts` and if `mtab` were to be a regular file on a "normal" file system `/etc` there would be challenges in making software work with moun...

                                  I'm curious about the file or symlink /etc/mtab. I believe this is a legacy mechanism . On every modern linux I've used this is a symbolic link to /proc/mounts and if mtab were to be a regular file on a "normal" file system /etc there would be challenges in making software work with mount namespaces.

For a long time I'd presumed that one of two things were true.  Either:
 - We're waiting for software referencing /etc/mtab to age out or be updated
 - Other non-linux OS still use the same file name and the link is there for cross platform compliance

However both of these seem shaky ideas.  I can't find good reference to any modern OS keeping the same file name outside Linux.  And it seems to have lived for much too long to be simply a backward compatibility issue; far more significant changes seem to have come and gone in that same time.

So I'm left wondering if /etc/mtab is really just there for historic reasons.  Is it in any way officially deprecated?  Is there any solid **modern** reason [as of 2023] to keep it?

*I don't want to delete it from my system, but as a software developer I'd like to understand its usefulness and whether to avoid it.*

Philip Couling (20391 rep)

Apr 16, 2023, 09:40 AM • Last activity: Apr 16, 2023, 07:09 PM

1 votes

1 answers

1259 views

OpenZFS and Linux Kernel versions compatibility question

debian linux-kernel kernel-modules zfs compatibility

Each new release of [openZFS][1] has a range of supported linux kernel versions (for example openZFS v2.1.9 supports kernels versions between 3.10 and 6.1) But when I run `zfs version` I get: root@pve:~# zfs version zfs-2.1.9-pve1 zfs-kmod-2.1.6-pve1 PVE it's because I'm running proxmox virtual envi...

                                  Each new release of openZFS  has a range of supported linux kernel versions (for example openZFS v2.1.9 supports kernels versions between 3.10 and 6.1)

But when I run zfs version I get:

    root@pve:~# zfs version
    zfs-2.1.9-pve1
    zfs-kmod-2.1.6-pve1

PVE it's because I'm running proxmox virtual environment distribution, but at the end of the day it's debian (11) with some virtualization glitter on top.

So my question is, what linux kernel versions can I install? Because zfs version returns two different versions that have different linux support. For example, zfs 2.1.6 only supports up to linux 5.19. So, what's the important version, zfs or zfs-kmod?

EDIT: Also, should those two versions, zfs and zfs-kmod, be the same?

Héctor (348 rep)

Apr 3, 2023, 07:12 AM • Last activity: Apr 4, 2023, 09:40 AM

0 votes

2 answers

1558 views

Will a nVidia GTX 1050 card work with Linux?

nvidia compatibility hardware-compatibility graphic-card

I have a laptop with GTX 1050 card and planning to buy in the near future PC with some external nvidia card as well. I want to install linux on both of them, but I never used linux with nvidia before and want to know what are compatibility issues I can face, because as far as I know nvidia and linux...

                                  I have a laptop with GTX 1050 card and planning to buy in the near future PC with some external nvidia card as well. I want to install linux on both of them, but I never used linux with nvidia before and want to know what are compatibility issues I can face, because as far as I know nvidia and linux don't have a good relationship.

Also, with the laptop that run on windows currently, I have the ability to use internal(CPU's) graphic card and GTX 1050 per application. So, when I'm not gaming I can use internal one, when I am gaming or need the 1050's power, I switch to it. Is this how it should work with linux as well?

EmmaBerg (1 rep)

Sep 2, 2022, 07:40 AM • Last activity: Jan 13, 2023, 04:17 PM

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