Thank-you again for your valuable time helping me:

Indeed I have a hardware issue: I would like to bypass zram0 [SWAP] which makes up 184.1M of total Swap memory of 983M; where the Disk utility 'sees' only the /dev/sdb6 [SWAP] |-sdb6 of 799M which was wiped using DoD 5220.28-STD (7 passes) and reformatted as a Linux swap.

The vast majority of Kernel panics would occur when I allocated the BIOS default of 64M frame buffer for Nvidia. What I suspect is that the unallocated portion is used as swap space.

To veriy this, I went back from the maximum allowable 128M to 64M frame buffer allocation in the BIOS and saved settings and exited and surely enough Kernel panics would occur with both usb bootable devices, with no drives in any slots, the Minitool partitioning tool alone or Trisquel alone respectively. Cutting the power and trying once again got me into the partitioning tool, and then I plugged the removable drive with the 799M swap partition, refreshed the device list and proceeded to wipe it.

With the Trisuel usb, I got kernel panic after selecting try Trisquel. Cutting power and trying that once again got me into Trisquel - momentarily a high resolution black screen appeared with one line message: ATA failed - invalid argument, and I was back here!

Now zram0 has 215.8M capacity and total swap space, adding the 799MB, indeed is 1014MB. Is there any way using the "Disk utility" to disable and test the drive which is embedded in the video controller? I have about 4MB memory available after booting into the Desktop when the swapper is still vacant. I would like to try reassigning swap space to the sdb6 799MB device only. How?

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