nfs_acl module installation

spAlex · 07-01-2007, 02:10 PM

Hi all.

What I need to add the nfs_acl module in a 2.6.9-11.ELsmp kernel?
Is necessary to rebuild the kernel or I can add this as a module?

I need this because acl support over nfs mounted directory is necessary, and in this kernel version doesn't have support for this.

In other nfs linux clients (running 2.6.9-34.ELsmp) when I do a lsmod command, in the results appears nfs_acl module used by nfs and acls can be used right.

Thanks in advance.

jschiwal · 07-01-2007, 03:17 PM

If you can't modprobe the module, it probably wasn't enabled in the kernel.

Look at
locate nfs_acl
/lib/modules/2.6.18.8-0.3-default/kernel/fs/nfs_common/nfs_acl.ko
to be sure.

You can check the config file on the running kernel as well:
zcat /proc/config.gz | grep -i NFS_ACL
CONFIG_NFS_ACL_SUPPORT=m

If you compile a newer kernel, use "make oldconfig" to start off where you are now. That will use your current settings on the new kernel and prompt you for new feature settings. Then you just need to tweak it in "make xconfig".

spAlex · 07-02-2007, 02:13 AM

Hello jschiwal.

Effectively I don't have enabled this in this kernel version.
The question is that I can enable this functionality adding a module or packet, or is necessary compile a new kernel vesion.

jschiwal · 07-02-2007, 05:54 AM

If you have the CONFIG_NFS_ACL_SUPPORT feature in your present kernel, you can run "make oldconfig" and then "make xconfig" and select "m" or "y".

Look at "zcat /proc/config.gz" | grep CONFIG_NFS_ACL_SUPPORT

If it says:
# CONFIG_NFS_ACL_SUPPORT is not set
Then you can recompile the current kernel.
Here are the settings on my stock kernel:

Code:

  3032  # Network File Systems
  3033  #
  3034  CONFIG_NFS_FS=m
  3035  CONFIG_NFS_V3=y
  3036  CONFIG_NFS_V3_ACL=y
  3037  CONFIG_NFS_V4=y
  3038  CONFIG_NFS_DIRECTIO=y
  3039  CONFIG_NFSD=m
  3040  CONFIG_NFSD_V2_ACL=y
  3041  CONFIG_NFSD_V3=y
  3042  CONFIG_NFSD_V3_ACL=y
  3043  CONFIG_NFSD_V4=y
  3044  CONFIG_NFSD_TCP=y
  3045  CONFIG_LOCKD=m
  3046  CONFIG_LOCKD_V4=y
  3047  CONFIG_EXPORTFS=m
  3048  CONFIG_NFS_ACL_SUPPORT=m
  3049  CONFIG_NFS_COMMON=y