Re: adding a user to a group
On Tue, May 06, 2003 at 11:11:38PM -0500, Kent West wrote:
> Assuming your CD-ROM drive is on /dev/cdrom:
> EnJaeLove[westk]:/home/westk> ls -l /dev/cdrom
> lrwxrwxrwx 1 root root 3 Aug 11 2001 /dev/cdrom -> hdc
> So now I look at /dev/hdc.
> EnJaeLove[westk]:/home/westk> ls -l /dev/hdc
> brw-rw---- 1 root disk 22, 0 May 12 2001 /dev/hdc
> So, to have read/write access to the CDROM drive, I'd need to be in the
> "disk" group. However, looking quickly at the permissions on the hard
> drive at /dev/hda:
> EnJaeLove[westk]:/home/westk> ls -l /dev/hda
> brw-rw---- 1 root disk 3, 0 May 12 2001 /dev/hda
> which means that if I put this user into the "disk" group, he'll have
> direct read/write access to the raw hard drive device. Hmm, do I really
> want to do that?
You almost certainly don't; group disk is effectively root access. If
/dev/hdc is a CD-ROM, it'd be better to 'chgrp cdrom /dev/hdc'.
Colin Watson [email@example.com]