Looking at the images, to me it seems that your SSD is playing up. I would boot from a live usb and then run some smart tests, running them two or three times on both disks. While you have the Live USB you can mess around with the PC running from the USB to test other aspects of your PC to ensure it is running OK. Also check the SSD manufacturer web site as they may have some test software for you to run and test the SSD.

Tim H


On 14/12/2025 09:37, Terry Coles wrote:
Good Morning,

My main PC (Dell Optiplex 790) seems to have suffered a fairly major boot problem.  I have uploaded some screenshots to https://www.hadrian-way.co.uk/Misc/ so that you can see what is going on:

 * At first boot, I get the display shown at MG20251214070339.jpg
   (Purple screen with Kernel Panic and other info).
 * If I reboot, I get the boot choice display, with an option to go to
   Advanced Options, see MG20251214084417.jpg. Here I can get various
   results:
     o I can hit select the current kernel which gives me the screen as
       above or:
     o I can select the current kernel (recovery mode). That gives me
       MG20251214070056.jpg
     o I can select the older kernel, which seems to stop booting with
       a black screen, or
     o I can select the older kernel (recovery mode). That gives me the
       recovery mode display and if I enter root mode, I get the result
       shown at MG20251214082134.jpg, As you can see I had to umount
       /dev/sda1 because it was busy, but that just threw up errors
       when I tried to fsck it.

Any thoughts?  It looks like the disc at first sight, but the SMART report on the two discs show nothing untoward (see reports in the above location).


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