Re: [gentoo-user] More file system frustration

[Kerin Millar <kerframil@fastmail.co.uk>]

William Kenworthy wrote:
> If I try and do:
>
> moriah ~ # mount -t ceph 192.168.44.68:6789:/ /mnt/ceph -o users
> mount error 22 = Invalid argument
>

Specifying "users" in that context doesn't make sense. Try creating an 
entry in /etc/fstab. For example:

192.168.44.68:6789:/    /mnt/ceph    ceph    users    0 0

Then see if you can mount by its mountpoint:

$ mount /mnt/ceph

> It turns out the driver doesnt recognise the user or users mount option
> and gentoo wont let a user mount or access a root mount, or even let a
> user mount.  Tried adding the user to the disk group without any effect.
>

It's not a driver option. /bin/mount is suid root and refers to fstab to 
decide whether a non-root user should be allowed to mount.

Generally speaking, regular user accounts should not be added to the 
disk group. That provides raw read/write access to block device nodes 
such as dev/sda, which is a potential risk both in terms of safety and 
security.

> Something in gentoo's user access control is causing this problem I
> think, so how can I get around it?
>
> BillK
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