Am 13.07.2014 22:17, schrieb Bas Wijnen: > On Sat, Jul 12, 2014 at 12:59:04AM +0200, Michael Biebl wrote: >> Am 12.07.2014 00:34, schrieb Bas Wijnen: >>> When fsck failed with this message before, I could do: >>> mount / -o remount,ro >>> fsck / >>> >>> Now, and I'm guessing this is a change on the part of systemd, that >>> first command (remount read-only) fails with the message that the file >>> system is busy. Having no bootable computer and thus no internet, I was >>> unable to figure out what was keeping it busy, and how I was supposed to >>> stop it. This is the information that I think should be part of the >>> "please run fsck manually"-message, because that won't work without it. >> >> I think there is no general answer to that. >> There most likely simply was a process keeping your (root) fs busy. >> So I would have tried stopping one service after another. > > I didn't start any processes. The problem happened in fsck, at which > point no process should be allowed to write to the file system (except > fsck itself). After failing, it gave me a rescue shell with which I > cannot remount the fs read-only. I think whatever is keeping it busy > must have been started just before spawning that shell? Or is it the > shell itself? > > I'd be fine with stopping all services, but I'm not familiar with how to > do that either. If this is the solution, please add that instruction to > the message. But would services which prevent the disk from being > remounted read-only be started before fsck is finished? The rescue > shell is part of fsck, I think(?), so nothing should have been started > after it failed. >
Since we don't know what kept your fs busy, I'm at a loss how we are supposed to write instructions/documentation. Could you boot into single user mode (via the "single" kernel command line option) and test if you can remount / ro. This rescue mode should be similar / the same what you get when fsck fails. If your fs is busy, start with dumping the ps output and the systemctl output, so we can which processes / services are running. -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth?
signature.asc
Description: OpenPGP digital signature
