On Tue, Jul 22, 2025 at 4:54 PM Dan O'Brien <dobr...@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
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