Be aware that on the latest SID updates (and on VSIDO installs with the new ISO) there is a delay of about 20 seconds and then a message
gave up waiting on suspend/resume device
and then it boots normally
Not sure where the message even comes from as it is immediate .. possibly initramfs update but I am not sure
It is not causing any issues other than a blank 20 second delay.. strange one I have never seen before
Does NOT happen boot of ISO to LiveCD, only after installed..
It could also be an SSD issue since that is what I am running on
2. Remove "resume=/dev/sdxy" from kernel cmdline ( press "e" when grub shows, then find it on the "linux" line and remove ) & hit F10 to boot.
If the error goes away, and you haven't formated/deleted/moved the swap partition, then it's likely some systemd bustage ( though changelog doesn't indicate anything related ).
When you hibernate your machine, RAM content is dumped onto the swap partition for a persistent storage. Then, when you turn back on, "resume=/dev/sdxy" line is used to point the kernel to that partition as the resume device containing the previous state.
So, if you're not using hibernation, it's safe to remove the same line from "GRUB_CMDLINE_LINUX_DEFAULT" in "/etc/default/grub" file, and then run "update-grub", however do keep in mind that if you ever hibernate the machine, it will NOT resume into previous state, but boot normaly instead!
Otherwise if you moved your swap, correct the "/dev/sdxy" in the same file & update-grub.