I'm sorry to tell, but I Had to drop the whole thing. When I mounted the volume as root, a single read-acces onto the mountes smb-share on the client-side locked his machine. The smb-server noticed nothing. The cd-rom is mounted via supermount. All windows-clients read the share without problems. -> Suggestions ? Reasons ?
A try with nfs showed other problems. With nfs I couldn't mount /mnt/cdrom. This worked after explicit mounting of /dev/cdrom, supermount disabled. I think the kernel prevents sharing of supermounted directories. It seems like there is no way to share a supermounted cd-rom (maybe with autofs ?) to different linux-clients.. :-( On Tue, 23 Apr 2002 22:38:17 +0200 (CEST) Urban Widmark <[EMAIL PROTECTED]> wrote: > On Tue, 23 Apr 2002, Lars Heineken wrote: > > > I tried to make an entry in /etc/fstab to enable users to mount a > > specific samba-share (here: //Heineken/CD-ROM) > > > > //Heineken/CD-ROM /mnt/HeinekenCDROM smbfs user,auto,username="x", > password"x"0 0 > > > > the only way to make this work is that the mount-destination is owned > > by the user who want's to mount. So "lars" for example can do the > > mount if /mnt/HeinekenCDROM is owned by "lars". As I don't want a > > speparate mountpoint for each user, how can I solve this the "right" > > way. Just like a CD-ROM mount ? > > The right way is to throw away smbmount and use smbconnect. The problem > you are seeing is that mount reads the fstab but doesn't do anything with > the entries and just passes them to smbmount. > > smbmount then does the mount syscall that mounts smbfs, but it doesn't > (want to) understand the options mount has and interprets them differently > (eg user). > > smbconnect would mean that mount does the mount syscall, and also all the > user/auto/noexec parsing so it would be identical to all other fs'. smbfs > then calls smbconnect to get the connection. > > The only problem with this is that smbconnect only exists on one of my > machines and is not very well tested. > > > There are a few other options that may be seen as less experimental: > > * automount > > Use autofs or some other automounter. Judging from the mount options you > don't care if a user can access the cd some other user mounted. > > With autofs the following: > > /etc/auto.master: > /mnt/heineken /etc/auto.heineken --timeout=60 > > /etc/auto.heineken: > cdrom -fstype=smbfs,username=x,password=x ://Heineken/CD-ROM > > would mount the cdrom when someone tried to access /mnt/heineken/cdrom. > A potential problem might be what happens when the cd is ejected on the > other end. I know I have never tested that ... > > * setuid root mount_heineken_cdrom > > Another way to do this is to make a small setuid root program to do this > mount. For safety all options should hardcoded into the program. > > * modify smbmnt > > The rule that only the user may mount on dirs he owns is implemented in > smbmnt. You have the code, change it. Do note that it is a security risk > to let users mount things wherever they want ... > > /Urban >