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Top Forums UNIX for Advanced & Expert Users NFS3 over KVM-Guest don't map UnixACLs Post 302720755 by darktux on Wednesday 24th of October 2012 03:14:34 PM
Old 10-24-2012
[solved] NFS3 over KVM-Guest don't map UnixACLs

Hi,

I have an problem with ACLs over NFS3. The Problem is, when i mount a nfsshare from an KVMguest, the UnixACLs were not mapped too. I don't know why. But this is only when i have the NFSshares on an virtulamachine. When i do the same with ein real machine, ACLs work well.
You can see that:

mount from physical machine:
Code:
touch data.txt
rwrw--+ data.txt

mount from virtual machine:
Code:
touch data.txt
rw-r--  data.txt

When a say "mount" on both. The ACL-flage is set. Strange, very strange.
I've tested this with Ubuntu 12.04 64bit and Gentoo 64bit.

I've testet this with anoter storageformat (qcow2, raw), with virtio, SATA.
I've testet the filesystems ext4 and jfs. Every time the same. I feel pretty helpless.

Thanks a lot for help
Greetings darktux

Last edited by darktux; 02-10-2013 at 05:00 PM..
 

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FS_FLUSHMOUNT(1)					       AFS Command Reference						  FS_FLUSHMOUNT(1)

NAME
fs_flushmount - Forces the Cache Manager to discard a mount point SYNOPSIS
fs flushmount [-path <dir/file path>+] [-help] fs flushm [-p <dir/file path>+] [-h] DESCRIPTION
The fs flushmount command removes from the cache all information associated with each mount point named by the -path argument. The next time an application accesses the mount point, the Cache Manager fetches the most current version of it from the File Server. Data cached from the associated volume is not affected. The command's intended use is to discard information about mount points that has become corrupted in the cache. (The Cache Manager periodically refreshes cached mount points, but the only other way to discard them immediately is to reinitialize the Cache Manager by rebooting the machine.) Symptoms of a corrupted mount point included garbled output from the fs lsmount command, and failed attempts to change directory to or list the contents of a mount point. To flush cached data rather than a mount point, use the fs flush or fs flushvolume command. OPTIONS
-path <dir/file path>+ Names each mount point to flush from the cache. Partial pathnames are interpreted relative to the current working directory, which is also the default value if this argument is omitted. -help Prints the online help for this command. All other valid options are ignored. EXAMPLES
The following command flushes from the cache the mount point for user "pat"'s home directory: % fs flushm /afs/abc.com/usr/pat PRIVILEGE REQUIRED
The issuer must have the "l" (lookup) permission on the ACL of the root directory of the volume that houses the file or directory named by the -path argument, and on the ACL of each directory that precedes it in the pathname. SEE ALSO
fs_flush(1), fs_flushvolume(1), fs_lsmount(1) COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved. This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell. OpenAFS 2012-03-26 FS_FLUSHMOUNT(1)
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