devfs confusion
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From: Bob Eager on 25 Mar 2010 19:11 On Thu, 25 Mar 2010 15:52:53 -0700, info wrote: > On Mar 25, 6:11 pm, Bob Eager <rd...(a)spamcop.net> wrote: >> On Thu, 25 Mar 2010 23:04:42 +0100, Torfinn Ingolfsen wrote: >> > The user who is doing the mounting must _own_ the mount point. That >> > is the only way it is going to work. > > Right, the non-root user does 'mkdir mnt' in his home directory so it is > owned by user:user mode 755. Then the user does 'mount /dev/ da0s1a > mnt' after which mnt is owned by root:wheel with mode 755. The user can > cd to the external volume and read what is there, but not write to it. > Unmounting the external volume returns mnt to user:user mode 755. Not quite sure why you left my name in there when you removed everything I wrote. Anyway... So, non-root user creates a local mount directory, owned by user:usersgroup (not necessarily 'user'). They can mount it, so the vfs.usermount=1 is working. Yes, at that point the mount point becomes owned by root:wheel. This is presumably the owner of the mounted filesystem. So the problem is the ownership and mode of the root directory (and below) on the mounted filsystem. -- Use the BIG mirror service in the UK: http://www.mirrorservice.org
From: info on 25 Mar 2010 19:27 On Mar 25, 7:11 pm, Bob Eager <rd...(a)spamcop.net> wrote: > > Not quite sure why you left my name in there when you removed everything > I wrote. Anyway... sorry, sloppy snipping > So the problem is the ownership and mode of the root directory (and > below) on the mounted filsystem. It is true that root did fdisk, bsdlabel and newfs on the external disk. Then I thought that the ownership and mode of the root directory on the mounted filesystem would be set with devfs.conf and devfs.rules, no?
From: Bob Eager on 25 Mar 2010 19:30 On Thu, 25 Mar 2010 16:27:25 -0700, info wrote: > On Mar 25, 7:11 pm, Bob Eager <rd...(a)spamcop.net> wrote: >> >> Not quite sure why you left my name in there when you removed >> everything I wrote. Anyway... > > sorry, sloppy snipping OK! >> So the problem is the ownership and mode of the root directory (and >> below) on the mounted filsystem. > > It is true that root did fdisk, bsdlabel and newfs on the external disk. > Then I thought that the ownership and mode of the root directory on the > mounted filesystem would be set with devfs.conf and devfs.rules, no? No, they just set the ownership of the *device*. And that's what I'd expect. I don't see why ownership of the file system should be affected by who owns the physical device. -- Use the BIG mirror service in the UK: http://www.mirrorservice.org
From: bas on 26 Mar 2010 11:03
On Mar 25, 7:30 pm, Bob Eager <rd...(a)spamcop.net> wrote: > > No, they just set the ownership of the *device*. And that's what I'd > expect. I don't see why ownership of the file system should be affected > by who owns the physical device. Ah, I see. Thank you. |