I don't know what was actually wrong with the permissions after all (I was in the cdrom group, and mkisofs had a devfs file entry to make it work, but it didn't regardless.)
I finally made it work by changing the command I used to invoke mkisofs from the option -M0,0,0 to the option -M /dev/cdrom (which is a symlink to /dev/cdroms/cdrom0) and that made it work On 2004.01.31 07:52, Ken Herron wrote: > --On Saturday, January 31, 2004 01:12:51 AM -0800 "Samuel N. Merritt" > <[EMAIL PROTECTED]> wrote: > > > On Fri, Jan 30, 2004 at 04:04:02PM -0800, Ken Bloom wrote: > >> I have a backup script that I run periodically (and I haven't run it > >> in two whole weeks), and I was trying to run it today but since having > >> switched to devfs, the permissions on the cd drive's device file seem > >> to have changed (probably as a result of the switch), so that I can't > >> read the file system. As a result, I can't add new sessions to a CD > >> because a permissions error keeps mkisofs from reading the previous > >> sessions on the CD. > >> > >> Devfs complains about /dev/sg0 > >> > >> [EMAIL PROTECTED] ~]% ls -l /dev/sg0 > >> lr-xr-xr-x 1 root root 36 2004-01-30 07:22 /dev/sg0 > >> -> scsi/host0/bus0/target0/lun0/generic > >> [EMAIL PROTECTED] ~]% ls -l `readlink -f /dev/sg0` > >> crw-r--r-- 1 root cdrom 21, 0 1969-12-31 16:00 > >> /dev/scsi/host0/bus0/target0/lun0/generic > > > > > > I'd set the device to 664 and make sure that the user running the > > backup script is in the "cdrom" group. > > Some systems will change the ownership on various devices to match the > user logged in on the console, then set the ownership back when the user > logs out. The idea is to let the person sitting in front of the computer > have access to the cd-roms, sound device, etc. See if you have a file > named "console.perms" in /etc/security or some similar location. You > should be able to adjust it to include the scsi generic devices. > > -- > Ken Herron > _______________________________________________ > vox-tech mailing list > [EMAIL PROTECTED] > -- I usually have a GPG digital signature included as an attachment. See http://www.gnupg.org/ for info about these digital signatures. My key was last signed 10/14/2003. If you use GPG *please* see me about signing the key. ***** My computer can't give you viruses by email. ***
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