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Old 12-17-2003, 09:56 AM   #1
dokterneo
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Question Why can't a non-root user mount a cdrom?


What is the correct fstab info to allow users to mount cdroms?

I thought it was:

/dev/cdrom /mnt/cdrom auto,user,ro 0 0

But it says I must be a superuser to use mount

The attributes on mount are rwxr-xr-x

Please help.

Thanks
 
Old 12-17-2003, 10:05 AM   #2
mrpdaemon
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/dev/cdrom is a symlink to some other device, like /dev/hd* .

check the permissions of the real device (/dev/hd*). Most probably they are

root.root rwx --- ---

so a chmod 744 can help you perhaps.
 
Old 12-17-2003, 10:06 AM   #3
djbanaan
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Try this one:

/dev/cdrom /mnt/cdrom iso9660 noauto,user,ro 0 0
 
Old 12-17-2003, 10:44 AM   #4
mcleprechaun
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You had is right the first time except for the "s" that was left off "users". The group is users not user.
 
Old 12-17-2003, 11:05 AM   #5
burnpile
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Quote:
Originally posted by mcleprechaun
You had is right the first time except for the "s" that was left off "users". The group is users not user.
I find a question that I can answer with 100% certainty and someone beats me to the punch
 
Old 12-17-2003, 12:16 PM   #6
Piratero
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By the way it's the same for sr* (/dev/sr0) emulation!
 
Old 12-17-2003, 01:25 PM   #7
dokterneo
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ok, I am at my wit's end.

here is the current config:

fstab
/dev/scd0 /mnt/cdrom auto auto,users,ro

I am using ide-scsi

user: bob
member of users

/dev/scd0 attrib are rwxr--r--
/dev/sr0 attrib are rwxr--r--

/mnt/cdrom attrib are rwx-r--r--

What on earth am I missing?

Last edited by dokterneo; 12-17-2003 at 02:19 PM.
 
Old 12-19-2003, 12:16 AM   #8
mpegler
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'auto' means the CD is already mounted during boot.
'user' means only the mounter, 'root' in this case during bootup, can unmount it.

Change it to 'noauto' so the CD is not mounted on boot.

Include either 'user' or 'users' so non-root users can mount the CD.
Choose 'user' if the mounter is the only one that can unmount a mounted CD.
Choose 'users' for anyone to unmount the CD.
 
Old 12-21-2003, 08:01 PM   #9
freychef
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I had the same problem as dokterneo but took a different approach.

My /dev/cdrom was linked to /dev/hdc which was owned by root. Instead of messing with /etc/fstab I just changed ownership from root to freychef.

chown freychef /dev/hdc.

Its simple, works and proves there's more than one way to skin a cat with Linux!
 
  


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