On Tue, Jul 22, 2025 at 4:54 PM Dan O'Brien <dobrie2@gmu.edu> wrote:
Ilya Dryomov wrote:
Have you tried loading the module wih "modprobe ceph"?
Thanks,
Ilya
I had not! That did the trick, at least partly. The module was found and loaded, and /proc/filesystems showed "ceph" as expected.
[root@bwall4-test ~]# cat /etc/redhat-release Rocky Linux release 9.5 (Blue Onyx) [root@bwall4-test ~]# modprobe ceph [root@bwall4-test ~]# cat /proc/filesystems | grep ceph nodev ceph [root@bwall4-test ~]#
But I still don't seem to be able to mount a CephFS volume: mount: /mnt/web: wrong fs type, bad option, bad superblock on ceph01,ceph02:/volumes/web/www/457c578c-95a1-4f28-aafa-d2c7e9603042, missing codepage or helper program, or other error.
The program mount.ceph is not installed and seems only to be available from the ceph-common package.
To do away without mount.ceph helper you would need to specify a bunch of things like the monitor addresses, the user ID, the key and possibly some mount options manually. Can you paste the mount invocation that is failing? Thanks, Ilya