On Mon, 19 May 2003, Andre Guibert de Bruet wrote: > On Sun, 18 May 2003, David Schultz wrote: > > By the way, why is the original poster walking around and shooting > > himself in the foot? Sigh. The dangers of firearms... > > I wanted to unmount as many filesystems as possible before connecting my > Dazzle 6-in-1 USB reader (the one that used to work, but now causes > panics). As you can imagine fsck'ing 650GB takes a little while... ;) > Also, /lib on this system is nfs exported, and I couldn't be arsed to kill > -9 nfsd and mountd. Use "umount -A" to unmount as many systems as possible. For umount(2), -A is documented umount all file systems except "/", but it cannot be expected to always do that unless -f is also specified. "umount -A" used to give an almost clean unmount after shutting down to single user mode. It was only missing a "mount -u -o ro /". Now it also fails to unmount devfs. Remounting file systems readonly is useful for avoiding fscks when you expect to panic. I mount large archival file systems readonly most of the time and occasionally remount /home and /usr readonly when I expect to panic. BruceReceived on Sun May 18 2003 - 22:29:48 UTC
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