Re: ide-scsi - can only read with root access
--- Bill Moseley <moseley@hank.org> wrote:
> This will be obvious, but I can't see the difference:
>
> I've got two debian machines -- one is "bumby" and the other is
> "burn".
> "burn" needs root access to read the ide-scsi cdrom where "bumby"
> will work
> as a normal user:
>
> here's on bumby where it works:
>
> moseley@bumby:~$ ls -l /dev/cdrom /dev/sr0 /dev/scd0
> /usr/bin/cdparanoia
> lrwxrwxrwx 1 root root 4 Mar 28 2002 /dev/cdrom ->
> scd0
> brw-rw---- 1 root audio 11, 0 Jan 24 2002 /dev/scd0
> lrwxrwxrwx 1 root root 4 Feb 21 2002 /dev/sr0 ->
> scd0
> -rwxr-xr-x 1 root root 31336 Mar 15 2002
> /usr/bin/cdparanoia
>
> moseley@bumby:/dev$ groups
> audio adm src
>
> moseley@bumby:/dev$ cdparanoia -vsQ
> ...
> Table of contents (audio tracks only):
> track length begin copy pre ch
> ===========================================================
> 1. 12692 [02:49.17] 0 [00:00.00] no no 2
>
>
> Now, the same look on "burn" where it doesn't work without root:
>
> moseley@burn:~$ ls -l /dev/cdrom /dev/sr0 /dev/scd0
> /usr/bin/cdparanoia
> lrwxr-xr-x 1 root root 3 Nov 17 14:51 /dev/cdrom ->
> sr0
> brw-rw---- 1 root audio 11, 0 Mar 14 2002 /dev/scd0
> lrwxr-xr-x 1 root root 4 Nov 17 14:48 /dev/sr0 ->
> scd0
> -rwxr-xr-x 1 root root 31336 Mar 15 2002
> /usr/bin/cdparanoia
>
> moseley@burn:~$ groups
> moseley adm cdrom audio src
>
> moseley@burn:~$ cdparanoia -vsQ
> cdparanoia III release 9.8 (March 23, 2001)
> ...
>
> No cdrom drives accessible to moseley found.
>
> But if I run in root:
> burn:/home/moseley# cdparanoia -vsQ
> cdparanoia III release 9.8 (March 23, 2001)
> (C) 2001 Monty <monty@xiph.org> and Xiphophorus
>
> Verifying CDDA command set...
> Expected command set reads OK.
>
> Table of contents (audio tracks only):
> track length begin copy pre ch
> ===========================================================
> 1. 12692 [02:49.17] 0 [00:00.00] no no 2
>
> Thanks
> --
> Bill Moseley
> mailto:moseley@hank.org
>
>
> --
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>
maybe on burn /dev/cdrom should link to /dev/scd0 and have full perms
as well? Looks like that is how you have it on bumby, not having write
access for groups could be the killer... if you give up just use sudo
package like I do :)
HTH
Shawn
=====
Shawn Lamson
Debian Gnu\Linux Sid
Kernel 2.4.19-custom
XFree86 Version 4.2.1
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