I ran an update to my Budgie workstation last night, and this morning the computer would not boot. I got these messages on startup:
/dev/nvmeOn1p2: clean, 700341/30498816 files, 15086919/121965056 blocks
Dev loop0: unable to read RDB block 8
EDAC SKX: ECC is disabled on IMC 0 (repeated 3 times)
Then it just goes to a black screen with a blinking cursor. On one or two boot attempts there was also a line that read “recovering journal”.
I was able to bring up the Grub menu by holding down Shift and hitting ESC several times on boot. Once there, I had these options:
Ubuntu, with Linux 5.17.0-1020-oem
Ubuntu, with Linux 5.17.0-1020-oem (recovery mode)
Ubuntu, with Linux 5.15.0-52-generic
Ubuntu, with Linux 5.15.0-52-generic (recovery mode)
I chose the third option 5.15.0-52 generic, and was able to boot and everything runs fine. But obviously there is a problem that needs fixing, but I’m not sure where to start. Looking for any insight others may have and how to fix this.
I spotted this bug report from yesterday for your problematic kernel Bug #1994153 “package linux-image-5.17.0-1020-oem 5.17.0-1020.21...” : Bugs : linux-signed-oem-5.17 package : Ubuntu
Do you also have nvidia graphics?
Sounds like a the linux oem kernel maintainers need to resolve properly. Do look at the last post in that bug report. You should subscribe to the bug report to receive updates.
Thanks fossfreedom, that was fast. Have you considered adding “Flash” to your handle? 
I will follow your suggestions. I do have nvidia graphics. Guess I need to roll back to the 5.15 kernel until this is addressed.
Stick a fork in it, this thread is done like dinner. Thanks again fossfreedom.
I installed the missing files as per the bug report and things fired up just fine. I still get those silly messages on bootup (which I don’t get using the 5.15 kernel). But if it’s running properly, I don’t care if it throws curses at me on bootup.
Just a heads up for those that run virtual machines…the 5.17 kernel does not play nice with VMWare Player. I tried to start it this morning and it wanted to update, but could not. Therefore would not run.
I rebooted into 5.15 kernel and VMWare runs fine.
Edit: I have edited my grub file to boot from the 5.15 kernel. I’ll wait until issues with 5.17 are ironed out before switching.