Hi there, On Mon, 24 Nov 2014, 18:08:50 +0100, Erik Logtenberg wrote: > Hi, > > I would like to mount a cephfs share from fstab, but it doesn't > completely work. > > First of all, I followed the documentation [1], which resulted in the > following line in fstab: > > ceph-01:6789:/ /mnt/cephfs/ ceph > name=testhost,secretfile=/root/testhost.key,noacl 0 2 it is my understanding that the network must be fully initialized before mounting a cephfs type directory is possible. The mount option "_netdev" exists for this exact scenario. Can you try if the following entry works? ceph-01:6789:/ /mnt/cephfs/ ceph name=testhost,secretfile=/root/testhost.key,noacl,_netdev 0 2 > Yes, this works when I manually try "mount /mnt/cephfs", but it does > give me the following error/warning: > > mount: error writing /etc/mtab: Invalid argument > > Now, even though this error doesn't influence the mounting itself, it > does prohibit my machine from booting right. Apparently Fedora/systemd > doesn't like this error when going through fstab, so booting is not > possible. > > The mtab issue can easily be worked around, by calling mount manually > and using the -n (--no-mtab) argument, like this: > > mount -t ceph -n ceph-01:6789:/ /mnt/cephfs/ -o > name=testhost,secretfile=/root/testhost.key,noacl > > However, I can't find a way to put that -n option in /etc/fstab itself > (since it's not a "-o option". Currently, I have the "noauto" setting in > fstab, so it doesn't get mounted on boot at all. Then I have to manually > log in and say "mount /mnt/cephfs" to explicitly mount the share. Far > from ideal. if the above doesn't work, this could be at least achieved by mounting the cephfs directories via autofs. > So, how do my fellow cephfs-users do this? > > Thanks, > > Erik. > > [1] http://ceph.com/docs/giant/cephfs/fstab/ HTH, cheers. l8er manfred
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