On 08/11/2009 10:04 AM, Mikkel L. Ellertson wrote: > Jerry Feldman wrote: > >> Actually, before the umount, you probably want to exit the chroot shell. >> umount is important in that it forces all data to be written. If you did >> a proper shutdown, the file system mounted on /mnt/sysimage would be >> unmounted during the shutdown process, but my background goes back to >> older Unix systems where things were less stable than they are today. >> >> > Would you even be able to run umount before exiting the chroot > shell? I would expect you to run into problems with the file system > being in use, the mount point not being visible, and the mount not > listed in mtab until you exit the chroot shell. (Though I would > expect it to be listed in /proc/mounts.) > > On the other hand, I would expect synce to flush the buffers to disk > even in the chroot shell. > > But what I normally do is use exit to get out of the chroot shell, > and exit again to get out of the rescue shell. This does a proper > shutdown of the system. > > Mikkel > Certainly, a proper shutdown (exit, exit) should do the trick. A sync will flush the buffers, and probably exiting chroot will force a sync. I personally prefer to unmount volumes manually just as a paranoid precaution. And you certainly would not be permitted to unmount the volume while in the chroot session. -- Jerry Feldman <gaf@xxxxxxx> Boston Linux and Unix PGP key id: 537C5846 PGP Key fingerprint: 3D1B 8377 A3C0 A5F2 ECBB CA3B 4607 4319 537C 5846
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