ElCuarteador
Good news! I eventually succeeded creating an ISO snapshot of my live system and also making a new (bigger) live USB with it. I also solved the original problem of not being able to update the system with either antiX Updater or the terminal. How? In summary (for the records too):
1- ISO Snapshot: I edited the /etc/iso-snapshot.conf file with snapshot_dir= the path to the “big” USB drive i bought yesterday, plus workdir= the path to the Live USB drive from which I booted with no persistence. This worked because I had about 5.5 GB of space availabe in the live USB drive, higher than the 4.65 GB that were claimed in the error message above, and as @anti-apXos mentioned the filesystem type of that drive was indeed ext4 (required for the workdir= option). The combination of the two drives was good to complete the job.
2- Problem updating the system: as found by @christophe, the problem was the size of the rootfs file (about 270 MB), too small to complete any sort of update. When I tried to resize it, the persistence files were aparently damaged, at least rootfs was, and as a result I couldn´t boot with static persistence any longer. The solution was what @anti-apXos proposed to do: I deleted rootfs and tried rebooting with static persistence. A new rootfs file was created (with the option to choose its size) while booting up. Everything works well now as far as I can see, including antiX Updater.
What is pending to resolve from what I found while solving the above problems would be the Format USB tool, that has the same problems I found before: on antiX 26, the field for selectinfg the drive to format is always blank (the obvious “refresh drive list” button does nothing) and on antiX 23.2, it fails trying to format the drive with ext4 type.
Thanks so much to @christophe, @Robin, Brian Masinick and @anti-apXos for the help and the patience!
- This reply was modified 3 months, 3 weeks ago by ElCuarteador.