On Fri, 2006-07-14 at 17:27 -0700, Paul Erickson wrote:
> Janina Sajka wrote:
> > This is old news now, sorry. I've been away running an exhibit booth for
> > a few weeks at a convention.
> >
> > I did want to tell you that I got this problem resolved. It turned out
> > to be the media, after all. So, I guess not all media on the store shelf
> > is acceptable.
> >
> > Janina
> >
> Glad you got your problem sorted out, unfortunately that does not
> address the problem where
> cd's can be written as root, but not as user. I can put a disc in the
> burner and have it fail to
> write when I am logged in as a user, and then logout and back in as
> root, and write the files
> to the disc using Nautilus cd writing utility, without any difficulty...
Permissions, my friend, permissions. I'm willing to bet that the device
node in /dev (e.g. /dev/hdc) doesn't permit just anyone access to the
device.
You could edit /etc/udev/rules.d/50-udev.rules and modify a couple of
lines to change the permissions. Assuming it's an IDE drive, you can
change the lines:
KERNEL=="hd[a-z]", BUS=="ide", SYSFS{removable}=="1",
PROGRAM=="check-cdrom.sh %k CD-R", SYMLINK+="cdwriter cdwriter-%k cdrw
cdrw-%k"
KERNEL=="sr[0-9]*", BUS=="scsi", PROGRAM=="check-cdrom.sh %k CD-R",
SYMLINK+="cdwriter cdwriter-%k cdrw cdrw-%k"
KERNEL=="hd[a-z]", BUS=="ide", SYSFS{removable}=="1",
PROGRAM="check-cdrom.sh %k DVD-R", SYMLINK+="dvdwriter dvdwriter-%k
dvdrw dvdrw-%k"
KERNEL=="sr[0-9]*", BUS=="scsi", PROGRAM=="check-cdrom.sh %k DVD-R",
SYMLINK+="dvdwriter dvdwriter-%k dvdrw dvdrw-%k"
to read
KERNEL=="hd[a-z]", BUS=="ide", SYSFS{removable}=="1",
PROGRAM=="check-cdrom.sh %k CD-R", SYMLINK+="cdwriter cdwriter-%k cdrw
cdrw-%k", MODE="0666"
KERNEL=="sr[0-9]*", BUS=="scsi", PROGRAM=="check-cdrom.sh %k CD-R",
SYMLINK+="cdwriter cdwriter-%k cdrw cdrw-%k", MODE="0666"
KERNEL=="hd[a-z]", BUS=="ide", SYSFS{removable}=="1",
PROGRAM="check-cdrom.sh %k DVD-R", SYMLINK+="dvdwriter dvdwriter-%k
dvdrw dvdrw-%k", MODE="0666"
KERNEL=="sr[0-9]*", BUS=="scsi", PROGRAM=="check-cdrom.sh %k DVD-R",
SYMLINK+="dvdwriter dvdwriter-%k dvdrw dvdrw-%k", MODE="0666"
In other words, append
, MODE="0666"
to the end of each of those lines. When the devices are created, this
SHOULD set up the permissions to be 0666 (rw-rw-rw-) and therefore
writable by anyone. Whether this is a wise thing to do, I leave to your
discretion.
----------------------------------------------------------------------
- Rick Stevens, Senior Systems Engineer rstevens@xxxxxxxxxxxxxxx -
- VitalStream, Inc. http://www.vitalstream.com -
- -
- "Swap memory error: You lose your mind" -
----------------------------------------------------------------------
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