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Re: [tlug] CD Writers
- To: TLUG <firstname.lastname@example.org>
- Subject: Re: [tlug] CD Writers
- From: Stuart Luppescu <email@example.com>
- Date: 04 Mar 2002 08:57:56 -0600
- Content-type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature";boundary="=-ktiYrTiqdt4Y4QzVYdmB"
- In-reply-to: <20020304054538.GD19432@example.com>
- References: <200203030414.g234Ewt24741@example.com><firstname.lastname@example.org><200203031114.g23BEBt26251@example.com><200203031414.g23EEjt27055@example.com><email@example.com><firstname.lastname@example.org> <20020304054538.GD19432@example.com>
On $BF|(B, 2002-03-03 at 23:45, A.Sajjad Zaidi wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Sun, Mar 03, 2002 at 12:14:38PM -0600, Stuart Luppescu wrote: > > > > I'm using cdrecord (which contains mkisofs, and a bunch of other stuff), > > cdlabelgen, and gcombust, a front end for the first two. It works fine > > as root, but I can't get it to run as a regular user. I get this kind of > > messages: > > /usr/bin/cdrecord: Operation not permitted. WARNING: Cannot do > > mlockall(2). > > /usr/bin/cdrecord: WARNING: This causes a high risk for buffer > > underruns. > > /usr/bin/cdrecord: Operation not permitted. WARNING: Cannot set > > RR-scheduler > > /usr/bin/cdrecord: Permission denied. WARNING: Cannot set priority using > > setpriority(). > > /usr/bin/cdrecord: WARNING: This causes a high risk for buffer > > underruns. > > scsidev: '0,1,0' > > scsibus: 0 target: 1 lun: 0 > > Linux sg driver version: 3.1.20 > > > > I've set the console.perms so I own the devices, so I know that's not > > the problem. Anyone have any ideas? > This is very likely a permissions problem since it runs fine as root. > Permission to write to a single device is usually not enough for > burning CDs. Check /dev/sg* and /dev/scd* and make sure you have write > permission. Well, I don't have /dev/scd*, but I do have /dev/sg1 and /dev/sr1. The former is a link to /dev/scsi/host0/bus0/target1/lun0/generic and the latter a link to /dev/scsi/host0/bus0/target1/lun0/cd. The original devices show these permissions: ll /dev/scsi/host0/bus0/target1/lun0/* crw------- 1 sl70 root 21, 1 Dec 31 1969 \ /dev/scsi/host0/bus0/target1/lun0/generic brw------- 1 sl70 disk 11, 1 Dec 31 1969 \ /dev/scsi/host0/bus0/target1/lun0/cd but the links are 555. and owned by root. I still don't get it. -- Stuart Luppescu -=- email@example.com University of Chicago -=- CCSR $B:MJ8$HCRF`H~$NIc(B -=- Kernel 2.4.14-xfs War isn't a good life, but it's life. -- Kirk, "A Private Little War", stardate 4211.8
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- Re: [tlug] CD Writers
- From: Shimpei Yamashita
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