Fwd: Re: need help with an rsync patch
sherinmon at gmail.com
Tue Aug 13 10:40:04 MDT 2013
On Tuesday 13 August 2013 09:49 PM, Justin T Pryzby wrote:
> On Tue, Aug 13, 2013 at 09:43:06PM +0530, Sherin A wrote:
>> If linux user foo , with home /home/foo , what ownership we need
>> to give the files under his home folder , it must be "foo" and not
> Why? The user created the hardlink themselves, and it had root
> ownership, why should the backup/restore lose that information? Are
> you manually chowning the files after restore? That's prolly also
> losing timestamp information by doing that.
>> After Rsync it will be as follows,
> rsync -H preserves hardinks, otherwise it doesn't.
>> root at cptest [~]# find /home/dom2inho/ -type f -links +1 => He have
>> hard link in home
>> root at cptest [~]# find /backup/dom2inho -type f -links +1 => There
>> is no hard link in backp
>> root at cptest [~]#
> You should also do find /etc/ -type f -links +1.
I am doing rsync from root at 10.0.0.10/home/foo to
storageuser at 10.0.0.20/home/storageuser/dailybackup/foo over ssh (no
role for -H) , so the storage files must be under the ownership of
storageuser and not the original owner , so we have to change the
ownership of files too "foo" after the restore , otherwise the user foo
can't access his files . So changing ownership is not that problem , if
we can identify which is the HL file . Otherwise we have to say , rsync
only need to use in same server itself with different partition
schemes for each directories and having kernel 3.6+ or higher ?
PS : if any one interested in making a patch with an additional option
for rsync for excluding hardlinks with -links +1 links , please help
me , it is easy to check the file with an lstat / stat system call.
Or is it possible to get a developer documentation for rsync with the
detailed info ?
Thanks to every one
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