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    SubjectRe: Why is /dev on a different filesystem ? [Kernel]
    On Wed, Mar 21, 2007 at 08:13:50PM +0100, Paul Rolland wrote:
    > Hello,
    > I was trying to backup a machine using tar and the --one-file-system option
    > and I was getting an archive without /dev, but tar was spitting :
    > /dev: file is on a different filesystem; not dumped

    That is probably because your distro is using udev which usually means
    tmpfs is mounted at /dev/

    > So, I had a look at the code in tar, and the comparison is done on the
    > stat.st_dev field...
    > I then wrote a simple program to stat("/", ...) and stat("/dev", ...),
    > and got :

    What does /proc/mounts show?


    greg k-h
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