[Ocfs2-users] cannot write to filesystem, permission denied?

[Sven Karlsson]

Hello,

We have installed Fedora 15 to get the latest ocfs2 release nicely
packaged in a 2.6.38 kernel and ocfs2-tools 1.6.3.
Setup went fine, mkfs.ocfs2 went fine, a cluster was created and the
local node added:

# o2cb_ctl -C -i -n mycluster -t cluster
Cluster mycluster created
# o2cb_ctl -C -i -n lab -t node -a number=1 -a
ip_address=192.168.111.5 -a ip_port=7778 -a cluster=mycluster


O2CB is configured and starts up as it should and reports that
mycluster is active, the O2CB heartbeat is active and the filesystem
mounts OK.

But: writes to the filesystem all fail with 'permission denied'. Example:

# date > /o2/file.txt
-bash: /o2/file.txt: Permission denied
# mkdir /o2/dir
mkdir: cannot create directory `/o2/dir': Permission denied
# id
uid=0(root) gid=0(root)
groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel)
context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
# mount | grep o2
/dev/mapper/vg01-lv_mycluster on /o2 type ocfs2
(rw,relatime,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,coherency=full,user_xattr,acl)

According to strace, the permission denied is from

mkdir("/o2/dir", 0777)                  = -1 EACCES (Permission denied)



Do you know what is the cause of this apparent "read-only" mode?
(although it is reported as a mounted rw)

Any pointers for further troubleshooting is greatly appreciated!