Ar Céad, 2010-11-17 ag 17:25 +0100, scríobh Albert ARIBAUD:
Do you mean that, in Linux, you do a power cycle without (syncing and) unmounting a file system that will be critical to properly booting later on? If so, what is the rationale behind this too-quick power cycle?
Yes, I'm testing power-fail tolerance! The RFS is mounted in sync mode so unless I'm missing something the sync should have occurred before the command prompt reappears, right?
Seems to me you should start by the preventive measure of avoiding the corruption in the first place (do a cp; sync; umount...) rather than relying on a curative measure of recovery attempts.
Ideally, yes and "sync" before power-down works but that's not what these tests are checking. With the RFS not in sync mode, it works; "sync" command with sync mount currently untested.