Now that 4.2.4 is using 97.7% of the partition, and nothing I delete from the var/lib/qubes paths seems to be much help, and I apt remove –purged blender and that did nothing, and 4.2.4 has apparently been euthanised already, I thought I might set aside a few days to install a fresh system, and 4.3.1 is the latest, so I downloaded an .ISO and did the dd business, only to find that on booting the USB drive, it stopped at a grub prompt.
I tried chainloaded (msdos1) /EFT/BOOT/BOOTX64.EFI boot as gpt5–nano sort of nudged me in that direction, roughly … and all I got back was “error: no server specified” or something like that. I don’t know how to copy text to anywhere at all for future reference when I am stuck at a grub prompt so excuse my syntax from memory, please.
I tried dd-ing 4.3.0 (which I have never used), and that got the same grub result.
I tried booting the 4.2.4 USB drive I still had laying around and that got me to the Install Summary without any sort of hesitation whatsoever. Wonderful! (except that’s past its UseBy Date now.)
I tried dd-ing the .ISO onto another USB stick, and got the same disaster.
I tried dd-ing the .ISO in a Mint 22.3 terminal because that called the USB drive /dev/sda1 rather than /dev/xvdj1 and that still didn’t work.
I tried using the USB Disk Writer which comes with the ‘Disks’ programme, as suggested in The Documentation and that didn’t work.
I searched here for “installation 4.3.1 grub” and all I got back was someone who managed to write their .ISO using a Fedora programme rather than a Debian alternative. I haven’t bothered with hunting that solution down because I haven’t used Fedora since Redhat 6.1, and 4.2.4 works as it ought to, and 4.3.n doesn’t, so what’s the difference, please?