[Kimchi-devel] [PATCH] Doc: add work around to handle NFS root squash problem

[lvroyce at linux.vnet.ibm.com]

From: Royce Lv <lvroyce at linux.vnet.ibm.com>

Tested:
    1. make
    2. nfs pool and vm creation
Default NFS server export path is configured as root squash,
mapping root user to nobody.
This results:
1. Root user cannot step into mount point if export path
   does not allow other to read/execute.
   So create volume will fail.
2. Even with other permission open,
   owner/group of volume created by root is still nobody/nogrp,
   and qemu permission is denied on such img.
This work around instruct user to enable squash to given libvirt user
to address the above problems.

Signed-off-by: Royce Lv <lvroyce at linux.vnet.ibm.com>
---
 docs/README.md | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/docs/README.md b/docs/README.md
index 5721878..17abe78 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -146,8 +146,15 @@ new template using the "+" button in the upper right corner.
 Known Issues
 ------------
 
-Kimchi is still experimental and should not be used in a production
+1. Kimchi is still experimental and should not be used in a production
 environment.
+2. When you are using NFS as storage pool, check the nfs export path permission
+is configured as:
+    (1) export path need to be squashed as kvm gid and libvirt uid:
+        /my_export_path *(all_squash,anongid=<kvm-gid>, anonuid=<libvirt-uid>,rw,sync)
+        So that root user can create volume with right user/group.
+    (2) Chown of export path user as libvirt user, group as kvm group,
+        In order to make sure all mapped user can get into the mount point.
 
 Participating
 -------------
-- 
1.8.1.2