How can I find and remove junk files accumulated during failed updates?
I don't know my way around the terminal environment or Linux commands, so seeking recommendations of a file manager.
TIA.
What do you mean by junk files and what kind of failure do you mean? I don't think pacman writes any temporary files that keep lingering on the system somewhere. It does however cache downloaded packages (in /var/chache/pacman/pkg/), but for a reason. Check out the
Arch wiki for more details and instructions on how to clean the cache. After a failed update, just try updating again. It might be another problem if the update was interrupted by external causes like power loss.
I experienced a crash during updating. Before the crash, I was told that I had 750mb available space. Screen went black, device became hot. I was only able to remove the battery to get the device working again.
After restarting, I was told I had zero bytes free space... so my conclusion is, I've accumulated some cache junk prior to the crash.