I just upgraded my Debian GNU/Linux server to Bullseye, 11. Except for a shortage of disc space everything went smoothly. It was my fault. I created a bit too small a / partition when I moved to a newer computer… I looked around and found gigabytes of cruft I could clear out to make things fit: obsolete compilers, files I was never likely to use and I deleted a few packages I was never likely to use. Did that from my smartphone while watching old news on CNN. Went to the console for the real work which took about ten minutes.
To my surprise, everything works, even the virtual machine and databases. I guess no incompatibilities in PHP versions arose to mess up a few web-applications. The only flaw I’ve found so far are some icons on my “task bar” are a bit strange… They can be fixed. It turned out I needed to increase the height of the panel by one pixel… 🙂
All in all, I’d say Debian continues to deliver extraordinary service to the world of computing. Thank You, Debian.
PS That was a rather tame process… To spice things up, I decided to convert in place a rather large JFS file-system to EXT4. JFS isn’t maintained very well and EXT4 seems to work. Debian has the tool, fstransform partition ext4… Amazing stuff, but slow. Will take about 12h by my estimate. OOPS! Drive died in the process. Oh, well, I have backups…