Messages in this thread | | | Date | Thu, 1 Apr 1999 15:34:14 -0800 (PST) | From | Tril <> | Subject | removing a mounted loopback file works |
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I am using kernel 2.2.4 and mount-2.9i. I have a file slink1-i386.raw (iso image). I can mount the file successfully using "mount slink1-i386.raw /mnt -o loop" using /dev/loop0.
But then I can remove the file slink1-i386.raw while it is mounted. After removing it, it's still listed as in use by mtab, /proc/mounts, and losetup /dev/loop0, and I can still access the filesystem through /mnt.
If I try to unmount it then it takes longer than if I had not removed the file.
I assume that /mnt is reading into unallocated inodes, and I assume that I could cause corrupt "ls" listings by filling up my disk (to ensure the inodes that were taken up by the mounted file are overwritten). I didn't try doing this because I have no idea what other damage might occur.
I think the correct behavior is for "rm" to return an error (permission denied, or some other error) if I try to remove the last (hard) link to a mounted file.
David Manifold <dem@tunes.org> This message is placed in the public domain.
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