Comment 3 for bug 1801551

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Steve Langasek (vorlon) wrote :

This would certainly not be a bug in grub, which has nothing to do with hibernate/resume handling.

What disk is the target for your hibernation? What are the contents of the RESUME setting in your initramfs? (unmkinitramfs /boot/initrd.img /tmp/initrd; cat /tmp/initrd/main/conf/conf.d/zz-auto-resume)

Resume from hibernation only works if you resume into the same kernel after hibernation that you were running before hibernation. Is it possible that you were rebooting into a different kernel version due to kernel security updates having been applied?