How to convert grub config to use kernel device names instead of UUID
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I've got a bunch of identical systems on which I want to clone the same openSUSE 12.3 installation.
I've set up clonezilla on PXE server.
After appling the disk-image of on another machine, it fails to boot.
This is because all the partitions are referred to be their UUIDs instead of the kernel-assigned name (sda1, sda2, etc).
How do I configure grub to be using the kernel names instead of the UUID so that the image can be truly ported to the other systems?
I have tried setting
GRUB_DISABLE_LINUX_UUID=true
in /etc/default/grub
and then run grub2-mkconfig -o /boot/grub2/grub.cfg
. I have also changed the entry in /etc/fstab
.
After these changes, the system still boots fine on the source machine, but doesn't boot on all the others. Grub loads, but only shows the word "GRUB" and thats all. Nothing else happens.
My current grub.cfg
is the following:
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub2-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
load_env
fi
set default="${saved_entry}"
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 --hint='hd0,msdos5' 5613d48c-eedb-4389-91bc-e49de73a1cc4
else
search --no-floppy --fs-uuid --set=root 5613d48c-eedb-4389-91bc-e49de73a1cc4
fi
font="/usr/share/grub2/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='hd0,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 --hint='hd0,msdos5' 5613d48c-eedb-4389-91bc-e49de73a1cc4
else
search --no-floppy --fs-uuid --set=root 5613d48c-eedb-4389-91bc-e49de73a1cc4
fi
insmod gfxmenu
loadfont ($root)/boot/grub2/themes/openSUSE/ascii.pf2
loadfont ($root)/boot/grub2/themes/openSUSE/DejaVuSans10.pf2
loadfont ($root)/boot/grub2/themes/openSUSE/DejaVuSans12.pf2
loadfont ($root)/boot/grub2/themes/openSUSE/DejaVuSans-Bold14.pf2
insmod png
set theme=($root)/boot/grub2/themes/openSUSE/theme.txt
export theme
if [ x${boot_once} = xtrue ]; then
set timeout=0
elif sleep --interruptible 0 ; then
set timeout=5
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'openSUSE 12.3' --class 'opensuse-12-3' --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-5613d48c-eedb-4389-91bc-e49de73a1cc4' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 --hint='hd0,msdos5' 5613d48c-eedb-4389-91bc-e49de73a1cc4
else
search --no-floppy --fs-uuid --set=root 5613d48c-eedb-4389-91bc-e49de73a1cc4
fi
echo 'Loading Linux 3.7.10-1.4-default ...'
linux /boot/vmlinuz-3.7.10-1.4-default root=/dev/sda5 splash=silent acpi=on barrier=off reboot=pci init=linuxrc splash=silent quiet showopts
echo 'Loading initial ramdisk ...'
initrd /boot/initrd-3.7.10-1.4-default
}
submenu 'Advanced options for openSUSE 12.3' $menuentry_id_option 'gnulinux-advanced-5613d48c-eedb-4389-91bc-e49de73a1cc4' {
menuentry 'openSUSE 12.3, with Linux 3.7.10-1.4-default' --class 'opensuse-12-3' --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.7.10-1.4-default-advanced-5613d48c-eedb-4389-91bc-e49de73a1cc4' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 --hint='hd0,msdos5' 5613d48c-eedb-4389-91bc-e49de73a1cc4
else
search --no-floppy --fs-uuid --set=root 5613d48c-eedb-4389-91bc-e49de73a1cc4
fi
echo 'Loading Linux 3.7.10-1.4-default ...'
linux /boot/vmlinuz-3.7.10-1.4-default root=/dev/sda5 splash=silent acpi=on barrier=off reboot=pci init=linuxrc splash=silent quiet showopts
echo 'Loading initial ramdisk ...'
initrd /boot/initrd-3.7.10-1.4-default
}
menuentry 'openSUSE 12.3, with Linux 3.7.10-1.4-default (recovery mode)' --class 'opensuse-12-3' --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.7.10-1.4-default-recovery-5613d48c-eedb-4389-91bc-e49de73a1cc4' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 --hint='hd0,msdos5' 5613d48c-eedb-4389-91bc-e49de73a1cc4
else
search --no-floppy --fs-uuid --set=root 5613d48c-eedb-4389-91bc-e49de73a1cc4
fi
echo 'Loading Linux 3.7.10-1.4-default ...'
linux /boot/vmlinuz-3.7.10-1.4-default root=/dev/sda5 showopts apm=off noresume edd=off powersaved=off nohz=off highres=off processor.max_cstate=1 nomodeset x11failsafe
echo 'Loading initial ramdisk ...'
initrd /boot/initrd-3.7.10-1.4-default
}
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/20_ppc_terminfo ###
### END /etc/grub.d/20_ppc_terminfo ###
### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows 7 (loader) (on /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-chain-52EA4C7AEA4C5C7B' {
insmod part_msdos
insmod ntfs
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 52EA4C7AEA4C5C7B
else
search --no-floppy --fs-uuid --set=root 52EA4C7AEA4C5C7B
fi
chainloader +1
}
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
### BEGIN /etc/grub.d/90_persistent ###
### END /etc/grub.d/90_persistent ###
Asked by d_inevitable
(271 rep)
May 13, 2013, 05:58 AM
Last activity: Jun 10, 2025, 03:02 PM
Last activity: Jun 10, 2025, 03:02 PM