Follow-up Comment #8, bug #35354 (project grub):
Yes, I believe in my case the disk id is taken from the disk, not the BIOS. I
never checked that, really.
My BIOS is dated from 2007.
I'll just have to work around duplicate UUIDs by send the 'tune2fs -U random
/dev/sdXN' command from either a live CD or a bootable disk after each restore
of partition or disk cloning I perform between disks. On the same disk that's
fine, but on a different disk I will have to change the UUID and then possibly
re-run 'grub update' so that the new UUID is copied into the grub config
files. I hope it does!
It will take more time for testing as I have to include these extra steps but
if it's reliable and work nicely I can live with it.
And nothing prevents me from using disk-ID in fstab.
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