Hi,
I once used grub1 to clone disks to multiple other disks and after each
cloning run with rsync a script changed fstab to match the device it was on
and I was ready to boot from 3 or 4 places on the same machine, or over ssh to
another
machine. I occasionally had wrong boot attempts because of changing /dev/sdc
vs. /dev/sdb
definitions, but that was not too often and fairly easy to fix.
How would I get that function back today where debian and the rest all use
UUIDs and PARTUUIDs?
Does anyone have a good script for it? It seems so complicated now.
I recently tried booting an rsync copy of my main workstation computer with two
screens
and lots of engineering tools and data installed so it has a size of 45GB.
I was starting from a mdadm raid1 boot to /. I copied that with rsync, and
booting
the copy on a single hard drive, grub2 gives me kernel panics
and cannot utilize a hand written grub.cfg menu entry like this:
menuentry 'Debian stretch/sid Linux 4.7.0-1-amd64' --class debian --class
gnu-linux --class gnu --class os {
load_video
insmod gzio
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root=UUID=87d52f42-838c-4418-a37e-f0d0a63ed8ed
echo 'Loading Linux 4.7.0-1-amd64 ...'
linux /boot/vmlinuz-4.7.0-1-amd64
root=UUID=87d52f42-838c-4418-a37e-f0d0a63ed8ed ro rootdelay=20
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-4.7.0-1-amd64
}
I ran
sudo dpkg-reconfigure grub-pc
Do I need to create a different initrd.img as if it was on a single disk? Do I
need to get a chroot
on the copy's / to run to do that?
Should I be using
set root=PARTUUID=f2ce6af6-01
?
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