On 11/23/10 4:45 PM, Freddie Cash wrote:
On Tue, Nov 23, 2010 at 4:56 AM, Thomas Ronner<tho...@ronner.org> wrote:
rsync -avHxS --delete --numeric-ids /src/. /dst/.
One problem with using rsync when dealing with hard-linked files: it
doesn't like it when the source switches from hard-linked to
non-hard-linked files. You end up with a mix of hard-linked and
non-hard-linked files in the destination, with the contents of the
non-hard-linked files all mixed around.
We just discovered this when we upgraded our Debian 4.0 (Etch) boxes
to Debian 5.0 (Lenny). On Etch, all the gzip tools are hard-links
(zcat, zless, gzip, gunzip, etc). On Lenny, they are all separate
files, and most are just shell scripts that use gzip. Doing an rsync
of a Lenny box onto a directory from an Etch box, you end up with some
hard-linked files, some regular files, and the contents of all the
files are mixed-up based on which source file (script or binary) was
read first.
We've had to resort to clearing out the backups directory when doing a
Debian upgrade, in order to guarantee that we get a clean backup via
rsync.
Thanks for this info! I'm going to try to reproduce this.
Thomas.
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