search for: default_kernelopt

...es not seem to >> be an OS tree. os-release file is missing. >> >> What am I doing wrong? > > Tested, and yes, this happens after a reboot, grub2 isn't giving the > initrd a root disk to switch to. > > I had to edit the grub.cfg and add a single line, > set default_kernelopts="..." > > (using what was GRUB_CMDLINE_LINUX= was set in /etc/default/grub) > > I'm not exactly sure which package that was installed that caused > this. > Create a snapshot of clean VM and divide that list in 10 pieces and install them one at the time and rebo...

Hi, Note: Please do this on a test VM. My issue: I took the output of the following command $ yum list installed | xargs -n3 | column -t | tail -n +3 |cut -d' ' -f1 > packages.list from a CentOS 7.7 Installation. and did $ dnf install $(cat packages.list) --setopt=strict=0 on Freshly installed Minimal CentOS 8 VM. When I reboot I get Failed to switch root: Specified switch

...t: Specified switch root path /sysroot does not seem to > be an OS tree. os-release file is missing. > > What am I doing wrong? Tested, and yes, this happens after a reboot, grub2 isn't giving the initrd a root disk to switch to. I had to edit the grub.cfg and add a single line, set default_kernelopts="..." (using what was GRUB_CMDLINE_LINUX= was set in /etc/default/grub) I'm not exactly sure which package that was installed that caused this. -- Jonathan Billings <billings at negate.org>