Mounting CephFS - mount error 5 = Input/output error

[Wyatt Gorman <wyattgorman@xxxxxxxxx>]

Hi everyone,

Thank you for clearing up the issue with the kernel not containing the ceph.ko or rbd.ko modules (and I take that thank you back from the guy who said "oh, you need to load it with modprobe!" because he didn't see that I got the error I sent you from modprobe...)

Anyway, I upgraded to the new kernel WITH those modules, and now I'm trying to load the CephFS again with the following command (from the wiki):
mount -t ceph 10.81.2.100:6789:/ /mnt/mycephfs

which gives me this:
mount error 22 = Invalid argument

a little searching led me to add the following options:
mount -t ceph 10.81.2.100:6789:/ /mnt/mycephfs -o name=admin,secret=`ceph-authtool -p /etc/ceph/ceph.keyring`

which eliminated the mount error 22, but brought up the following one:
mount error 5 = Input/output error

Anyone have any ideas what this is all about? I have the use_xattr option turned on in my OSD's fstab, which one bug report suggested could be the problem. I'm running this on ext3, however. I read here: (http://tracker.ceph.com/issues/479) that BTRFS without journaling works. Should I try again on BTRFS?

- Wyatt Gorman

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