Follow-up Comment #5, bug #40530 (project grub):
I like the alternatives much better.
Now the implementation issues:
swap may not be visible to GRUB so looking at it is not reliable.
The way to proceed would be along GRUB saving last booted entry in grubenv as
"last_entry". Then hibernate scripts would use grub-editenv set "hibernated"
variable to 1. grub-mkconfig if GRUB_HIBERNATE_CHECK=true in /etc/default/grub
then would add a code in 00_header to set default to $last_entry and clear
hibernated.
Don't expect me to make a patch, last time I used hibernate RAM was just about
256M. But I'd accept a sane patch along those lines.
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