Can't boot slackware after installation. Liloconfig not found

I just installed my first linux distro: slackware. The installation went fine. I followed this tutorial for the setup and this other tutorial for formatting the disk. Unfortunately, slackware won't boot after completing the installation. After some googling I found out that it's most likely due to LILO not working. I've installed LILO using the simple installation, selecting standard and then the MBR option (just like in the first YT video). After rebooting I'm getting the syslinux boot: menu again. If I reboot without installation USB I'll get the same as prior to installing slackware. Entering liloconfig in the boot: menu as some people online suggested resulted in something like > liloconfig... no such file or directory found Can any one of you help me out? _P.S.- If it matters, I'm installing on a stripped HP Probook 4710s_