On Tue, Nov 24, 2020 at 9:23 PM Roger Heflin <rogerhef...@gmail.com> wrote:

> If you have a "rescue" option in grub then boot it, the rescue install
> should be built with hostonly=no and is expected to include all
> drivers including that one.  I verified on one of my machines that one
> is included in my rescue.   The normal initrd is hostonly=yes and only
> includes the critical modules needed to boot the system, and thin was
> not previously need and so not included.
>
> Once booted rebuild the other initrd and that should include the thin
> module now.
>
> lsinitrd <initrdname> | grep -i thin    should show you if it gets put
> into the initrd after the rebuild and can be used to confirm that it
> is not in any initramfs except rescue.
>

I went the dumb path.

I made a regular logical volume, used partclone to restore my back up and
then booted into the OS.

Once booted in I added the following to /etc/dracut.conf:

              add_drivers+=" dm-thin-pool "

and then rebuild by initramfs by

         dracut -f

and then booted into my other two fedora kernels and did the same.

After that, I created the thread pool and thin volumes again and restored
my backup again, and logged in.

-- 
Regards,
Sreyan Chakravarty
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