Anno domini 2020 Thu, 12 Mar 19:03:14 -0500 John Morris scripsit: > On Thu, 2020-03-12 at 21:45 +0000, Rainer Weikusat via Dng wrote: > > - the sole purpose of this text is for the amusement of people who > > ever > > had to find a (preferably simple) solution for a complicated problem > > - > > > > Problem I had to deal with since yesterday: Some Debian 10 system (use > > of systemd mandated) installation I've created was to be captured by a > > certain image capturing tool running on Windows. As it turned out to > > be, > > this capturing tool has no support for Linux swap partitions and thus, > > tries to capture them by doing a sector-by-sectory copy of random junk > > which won't ever be of any use again. > > > > Proposed solution: Turn that into an ext4 filesystem, record the UUID, > > run a script at boot to convert it back to a swap partition. This > > could > > have been solved by suitable manipulation of /etc/rcS-symlinks but the > > mere thought of something as unsophisticated at that would cause > > systemd > > developers to start spinning until the reach escape velocity, never to > > be seen again - and who could possibly want that. > > How about a simpler solution? > On shutdown: > 1. Capture the label and UUID of the swap partition. > 2. Do a swapoff. > 3. Zero out the swap partition. > 4. Remake it with the same label and UUID. > > It will still get a sector by sector copy but assuming it is compressed > it will be of trivial size.
LOL ... to make things more interesting, I'd suggest this: - on shutdown: remove the swap-partition from the partition table - on boot: create an entry in the partition table for swap and use it Noe there might be interestring sideeffects :) -- Please do not email me anything that you are not comfortable also sharing with the NSA, CIA ... _______________________________________________ Dng mailing list [email protected] https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
