Boot issues encountered with resume= parameter

May 19 19:19:19 geeko kernel: PM: Checking hibernation image partition /dev/mapper/swap
May 19 19:19:19 geeko kernel: PM: Hibernation image not present or could not be loaded.

May 20 20:04:09 geeko systemd[1]: Found device /dev/mapper/swap
May 20 20:04:09 geeko systemd[1]: Starting Resume from hibernation using device /dev/mapper/swap...
May 20 20:04:09 geeko kernel: PM: Starting manual resume from disk
May 20 20:04:09 geeko kernel: PM: Hibernation image partition 254:0 present
May 20 20:04:09 geeko kernel: PM: Looking for hibernation image.
May 20 20:04:09 geeko kernel: PM: Image not found (code -22)
May 20 20:04:09 geeko kernel: PM: Hibernation image not present or could not be loaded.
May 19 19:04:09 LISSUMAGB2CTST systemd-hibernate-resume[554]: Could not resume from '/dev/mapper/swap' (254:0).
May 19 19:04:09 LISSUMAGB2CTST systemd[1]: Started Resume from hibernation using device /dev/mapper/swap.
May 19 19:04:09 LISSUMAGB2CTST systemd[1]: Reached target Local File Systems (Pre).

A one off solution would be to edit the grub entries in the boot loader.

Follow the product documentation for instructions

You will see an entry like this:

	linux	/vmlinuz-4.12.14-122.71-default root=UUID=fe845e0b3-abce-46e5-9a65-00b6363e52b9  resume=/dev/mapper/swap splash=silent quiet crashkernel=216M-:108M showopts resume=/dev/mapper/swap splash=silent quiet showopts crashkernel=108M

A cleaned up entry would look like this after removing the duplicate entries and the resume parameters and appending a noresume:

	linux	/vmlinuz-4.12.14-122.71-default root=UUID=fe845e0b3-abce-46e5-9a65-00b6363e52b9  splash=silent quiet crashkernel=216M-:108M noresume

Or you may attempt to boot selecting "recovery mode" in the boot menu. The recovery mode will make no attempt to resume.

A permanent change would be to change the /etc/default/grub file and remake the grub config file. The steps are as follows.

Change:

GRUB_CMDLINE_LINUX_DEFAULT="resume=/dev/mapper/swap splash=silent quiet crashkernel=216M-:108M showopts resume=/dev/mapper/swap splash=silent quiet showopts crashkernel=108M"

To:

GRUB_CMDLINE_LINUX_DEFAULT="splash=silent quiet crashkernel=216M-:108M showopts noresume"

Then it's a simple matter of backing up the /boot/grub2/grub.cfg file, for example by copying that file to /boot/grub2/grub.cfg.backup.

After backing up, remake the grub config file:

grub2-mkconfig -o /boot/grub2/grub.cfg

On the next boot the system will not attempt to resume from the hibernation image.

• Security hardened systems
• Systems in which the swap device, root filesystem or /boot partition was not specified by UUID
• Otherwise improperly configured GRUB, such as duplicate resume= parameters
• Cases where the swap device was unreachable.