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Full Discussion: Rsync - Preserve owner/group with different UID/GID
Top Forums Shell Programming and Scripting Rsync - Preserve owner/group with different UID/GID Post 302148174 by Santi on Friday 30th of November 2007 05:25:54 AM
Old 11-30-2007
Rsync - Preserve owner/group with different UID/GID
Dear Folks :-)

I want to rsync some files between some servers and preserve files owner and group (not UID or GID), in some machines UID and GID are differents, for example:

a) In the rsync server:

Code:
# stat vbseo.php 
  File: `vbseo.php'
  Size: 26758           Blocks: 56         IO Block: 4096   regular file
Device: 804h/2052d      Inode: 21971712    Links: 1
Access: (0644/-rw-r--r--)  Uid: (10002/ user1)   Gid: (10001/  psacln)
Access: 2006-10-09 18:30:59.000000000 +0200
Modify: 2006-10-09 19:12:48.000000000 +0200
Change: 2006-10-09 19:12:48.000000000 +0200

# grep psacln /etc/group
psacln:x:10001:

b) In the rsync clients:

Code:
# stat vbseo.php 
  File: `vbseo.php'
  Size: 26758           Blocks: 56         IO Block: 4096   regular file
Device: 803h/2051d      Inode: 37421492    Links: 1
Access: (0644/-rw-r--r--)  Uid: (10002/ user1)   Gid: (10001/ UNKNOWN)
Access: 2007-11-30 10:46:59.000000000 +0100
Modify: 2006-10-09 19:12:48.000000000 +0200
Change: 2007-11-30 10:46:59.000000000 +0100

# grep psacln /etc/group
psacln:x:2524:

In the case of UID/GID are the same between machines there isn't problems.. but when don't match there are problems. I have tried several rsync options like "--owner", "--group", "--numeric-ids", "--super", etc.. but getting the same result.. is there anyway to make this with rsync?

I have a similar solution with tar+ssh but I want to use Rsync:

Code:
tar cpzf - /source --ignore-failed-read --ignore-zeros | ssh root@192.168.x.x -p22 "cd /destination; tar --same-owner -xzf -"

Regards,

--
Santi Saez
 

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LEARN ABOUT OPENSOLARIS

nfsmapid

nfsmapid(1M)						  System Administration Commands					      nfsmapid(1M)

NAME

       nfsmapid - NFS user and group id mapping daemon

SYNOPSIS

       /usr/lib/nfs/nfsmapid

DESCRIPTION

       The  nfsmapid  daemon  maps to and from NFS version 4 owner and owner_group identification attributes and local UID and GID numbers used by
       both the NFS version 4 client and server.

       nfsmapid uses the passwd and group entries in the /etc/nsswitch.conf file to direct how it performs the mappings.

       The nfsmapid daemon has no external, customer-accessible interfaces. You can, however, administratively configure nfsmapid in  one  of  the
       following ways:

	   o	  Specify the NFSMAPID_DOMAIN parameter in nfs(4)

	   o	  Specify the _nfsv4idmapdomain DNS resource record.

       Please refer to the  for further details.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWnfscu 		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       svcs(1),  automountd(1M),  groupdel(1M),  groupmod(1M),	mount_nfs(1M),	passmgmt(1M), svcadm(1M), share_nfs(1M), userdel(1M), usermod(1M),
       nfs(4), attributes(5), smf(5)

NOTES

       The nfsmapid service is managed by the service management facility, smf(5), under the service identifier:

	 svc:/network/nfs/mapid

       Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed  using  svcadm(1M).  The  ser-
       vice's status can be queried using the svcs(1) command.

       If  it is disabled, it will be enabled by mount_nfs(1M), share_nfs(1M), and automountd(1M), unless  its	     application/auto_enable prop-
       erty is set to false.

       nfsmapid caches a user's UID and GID. If a user subsequently changes a UID or GID, using one of the utilities listed  below,  the  nfsmapid
       cache becomes stale. At this point, any NFS operation that gets or set attributes will result in the exchange of this stale information. To
       resolve this situation, restart nfsmapid, as follows:

	 # svcadm restart svc:/network/nfs/mapid:default

       The utilities that allow you to change UID and GID are:

	   o	  usermod(1M)

	   o	  userdel(1M)

	   o	  groupmod(1M)

	   o	  groupdel(1M)

	   o	  passmgmt(1M)

       The nfsmapid daemon might not exist in a future release of Solaris.

SunOS 5.11							    30 Oct 2007 						      nfsmapid(1M)
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