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'cp: .snapshot/xxx and xxx are identical'


From: Tim Waugh
Subject: 'cp: .snapshot/xxx and xxx are identical'
Date: Mon, 7 Mar 2005 11:36:05 +0000
User-agent: Mutt/1.4.2.1i

A Netapp NFS server containing a file (xxx) and a snapshot of the file
(.snapshot/xxx) will give them the same inode number.

Unfortunately, 'cp .snapshot/xxx xxx' (in order to recover the
snapshot version) fails with '... are identical' due to the inode
check.

Is there some way of bypassing this check?

More importantly, is there something in POSIX which says that this
check is allowed in the first place?

The problem was originally reported against coreutils-4.5.3, but 5.2.1
seems to act in the same way. [Original bug report: RH bug #150112]

Thanks,
Tim.
*/

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