> No, it doesn't! The prompt in Red Hat 7.2 asks you if you want to > force a *full* fsck. Okay, Though the message just says Press Y within 5 seconds to force file system integrity check..." Observe that there is no mention of "full" I couldn't find any explanation as to what a *full* fsck is, under what conditions would it be triggered. Can one force it manually ? Is there any back of envelope calculation to estimate the time it would take on x GB of disk with Y MB of journal data or maybe there is some other dependency on block size and number of inodes on the system etc > > The question is, is fsck required after an unclean shutdown or should > > one just rely on journal replay. What does fsck do when it sees an > > unclean ext3 filesystem > > By default, fsck on an unclean ext3 just replays the journal. > Passno==2 is correct --- it will force journal replay on the ext3 > filesystems, and will give fsck a chance to do its usual maintainance > jobs (checking for forced fscks after a set interval, detecting error > conditions on the fs which force a full fsck, etc.)
