Messages in this thread | | | Date | Wed, 5 Nov 2008 12:05:22 +0300 | From | Alexey Dobriyan <> | Subject | Re: 2.6.28-rc3: kernel mounts the same device twice? Or /proc/mounts lies? |
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On Tue, Nov 04, 2008 at 12:13:07PM +0300, Andrey Borzenkov wrote: > Out of some infinite wisdom something on my system decided to add > fstab entry for "new" device after switching from IDE to PATA: > > # Entry for /dev/LABEL=/ : > LABEL=/ / reiserfs relatime,tail 1 1 > none /proc proc defaults 0 0 > none /sys sysfs defaults 0 0 > none /tmp tmpfs defaults 0 0 > # Entry for /dev/LABEL=swap : > LABEL=swap swap swap defaults 0 0 > # Entry for /dev/sda2 : > UUID=72973377-c299-4ca6-ae94-2022b7dca58f /media/hd reiserfs defaults 0 0 > > Note that both / and /media/hd refer to the same device: > > {pts/0}% sudo blkid > /dev/sda1: TYPE="swap" LABEL="swap" UUID="3b4dc82c-a6e6-4609-be9e-16d9206ab7fd" > /dev/sda2: UUID="72973377-c299-4ca6-ae94-2022b7dca58f" LABEL="/" TYPE="reiserfs" > > And according to /proc/mounts both are mounted at the same time: > > {pts/0}% cat /proc/mounts > rootfs / rootfs rw 0 0 > /dev/root / reiserfs rw 0 0 > /dev /dev tmpfs rw 0 0 > /proc /proc proc rw 0 0 > /sys /sys sysfs rw 0 0 > /proc/bus/usb /proc/bus/usb usbfs rw,devgid=43,devmode=664 0 0 > none /dev/pts devpts rw,mode=620 0 0 > none /dev/shm tmpfs rw 0 0 > none /tmp tmpfs rw 0 0 > none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0 > /dev/sda2 /media/hd reiserfs rw 0 0 > {pts/0}% ll /dev/root > brw------- 1 root root 8, 2 2008-11-04 12:01 /dev/root > {pts/0}% ll /dev/sda2 > brw-rw---- 1 root disk 8, 2 2008-11-04 12:01 /dev/sda2 > > Bug or feature?
bind mount or some userspace from LinuxOnDesktop crowd is actually mounted it second time.
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