Hi,

I've got the alpha version 15 of xcdroast and Red Hat Enterprise 3 WS kernel: . E2.4.21-27.0.1.ELsmp everything works fine if I run xcdroast as root, but if I try to burn a DVD as a normal user I don't have permissions. I can run xcdroast but the permissions problems start when I try to access the DVD burner itself. I've seen other posts that say this is a change in the newer kernels not in xcdroast, but I was wondering if someone knew of a workaround to get non-root users the ability to burn DVDs again. The odd thing is non-root users can burn CDs without a problem via the Nautilis CD burner. Thanks for any and all help.


-NifflerX

You could try setting the SUID bit on the bin (executable) file that cdrecord-prodvd uses (sorry I am not that familiar with cdrecord-prodvd). This way it can run with root privileges. Nautilus can so by selecting propeties of the file.

regards

Shmonkey

Thanks for the reply. When I originally ran xcdroast as root and asked it to change to non-root mode I think this is what it did. Currently the permissions on the file that cdrecord.prodvd points to (it is a symbolic link) are as follows:

The other exectubles in the bin directory all have permissions 755, except for xcdrwrap which has the same permissions as cdrecord.prodvd. I think this means that the SUID bit is already set, although my understanding of SUID bits is far from complete, so if I'm reading this wrong please let me know. Thanks again for the reply and if anyone has any other thoughts or suggestions I'd appreciate all of them.

Just one other quick note, the specific error I'm getting from the xcdroast error message is that

"cdrecord.prodvd: Cannot allocate memory. Cannot get SCSI I/O buffer."

-NifflerX

might be a permission problem for /dev/sg or /dev/sg0 or whatever it is...

My Take,
The current issue about the kernel command filters is not your problem here as you are running an old kernel
but there is something to be said for running cdburner as root , mainly memory locking , because cd burning in kind of mem intense and has a possibility of buffer overrun..

rather than trying to fix the problem i would install "sudo" and then as user call "sudo xcdroast" (like from a menu) so regular users can have root permissions

Thank you so much for the reply. By editing the sudoers file (carefully) I was able to allow the users I want to be able to burn DVDs have that ability. Thank you again.


-NifflerX