Re: [edk2-devel] [PATCH 1/1] OvmfPkg PlatformBootManagerLib: Move TryRunningQemuKernel()

["Gerd Hoffmann" <kraxel@redhat.com>]

  Hi,

> insmod /lib/modules/5.13.8/kernel/fs/jbd2/jbd2.ko
> insmod /lib/modules/5.13.8/kernel/fs/mbcache.ko
> insmod /lib/modules/5.13.8/kernel/fs/ext4/ext4.ko
> mount: mounting /dev/sda2 on /mnt failed: No such file or directory
> ERROR: No /sbin/init found on rootdev (or not mounted). Trouble ahead.
>        You can try to fix it. Type 'exit' when things are done.
> 
> At that point I'm dropped into a recovery shell to try fixing something
> but there's nothing that can be done since the disk containing the OS is
> not visible.

> From the above, I think I've done everything possible to verify the
> problem and a possible fix. Is there something fundamentally wrong in
> the way I'm going about this?

Root cause is not clear.  Grab the kernel log ('dmesg') from a good and
a bad boot and comparing them should give a clue.

take care,
  Gerd