[gentoo-user] cdrecord says permission denied
Hi folks! For years I've been using cdrecord as a non-root user and without suid bit set. Now it doesn't work any more. Here is the error message and some other info: $ cdrecord -eject -v -driveropts=burnproof -data dev=/dev/cdrw bigdisk/soft/operating_systems/ophcrack-livecd-1.2.2.iso cdrecord: No write mode specified. cdrecord: Asuming -sao mode. cdrecord: If your drive does not accept -sao, try -tao. cdrecord: Future versions of cdrecord may have different drive dependent defaults. Cdrecord-ProDVD-ProBD-Clone 2.01.01a34 (i686-pc-linux-gnu) Copyright (C) 1995-2007 Jörg Schilling TOC Type: 1 = CD-ROM cdrecord: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK limits.cdrecord: Cannot allocate memory. WARNING: Cannot do mlockall(2). cdrecord: WARNING: This causes a high risk for buffer underruns. cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler cdrecord: Permission denied. WARNING: Cannot set priority using setpriority(). cdrecord: WARNING: This causes a high risk for buffer underruns. scsidev: '/dev/cdrw' devname: '/dev/cdrw' scsibus: -2 target: -2 lun: -2 Warning: Open by 'devname' is unintentional and not supported. Linux sg driver version: 3.5.27 Using libscg version 'schily-0.9'. Driveropts: 'burnproof' SCSI buffer size: 64512 atapi: 1 Device type: Removable CD-ROM Version: 0 Response Format: 2 Capabilities : Vendor_info: 'QSI ' Identifikation : 'CDRW/DVD SBW-242' Revision : 'UX08' Device seems to be: Generic mmc2 DVD-ROM. Current: CD-RW Profile: DVD-ROM Profile: CD-ROM Profile: CD-R Profile: CD-RW (current) Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R Drive buf size : 1959936 = 1914 KB FIFO size : 4194304 = 4096 KB Track 01: data 455 MB Total size: 522 MB (51:47.76) = 233082 sectors Lout start: 523 MB (51:49/57) = 233082 sectors cdrecord: Operation not permitted. Cannot send SCSI cmd via ioctl. cdrecord: Operation not permitted. Cannot open or use SCSI driver. cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are root. cdrecord: For possible transport specifiers try 'cdrecord dev=help'. $ ll /dev/cdr* lrwxrwxrwx 1 root root 3 2007-09-11 16:21 /dev/cdrom - hdc lrwxrwxrwx 1 root root 3 2007-09-11 16:21 /dev/cdrw - hdc $ ll /dev/hdc brw-rw 1 root cdrom 22, 0 2007-09-11 16:21 /dev/hdc $ groups adm wheel cron audio cdrom video cdrw usb users locate portage plugdev I can't find anything, neither in the ChangeLogs (ebuild or cdrtools) nor on the forums/bugzilla. Everybody seems to like the idea of burning CDs with root permissions. Can anybody point me in the right direction? Thanks, Renat -- Probleme kann man niemals mit derselben Denkweise loesen, durch die sie entstanden sind. (Einstein) signature.asc Description: PGP signature
Re: [gentoo-user] cdrecord says permission denied
did you try adding yourself to the cdrom group? 2007/9/11, Renat Golubchyk [EMAIL PROTECTED]: Hi folks! For years I've been using cdrecord as a non-root user and without suid bit set. Now it doesn't work any more. Here is the error message and some other info: $ cdrecord -eject -v -driveropts=burnproof -data dev=/dev/cdrw bigdisk/soft/operating_systems/ophcrack-livecd-1.2.2.iso cdrecord: No write mode specified. cdrecord: Asuming -sao mode. cdrecord: If your drive does not accept -sao, try -tao. cdrecord: Future versions of cdrecord may have different drive dependent defaults. Cdrecord-ProDVD-ProBD-Clone 2.01.01a34 (i686-pc-linux-gnu) Copyright (C) 1995-2007 Jörg Schilling TOC Type: 1 = CD-ROM cdrecord: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK limits.cdrecord: Cannot allocate memory. WARNING: Cannot do mlockall(2). cdrecord: WARNING: This causes a high risk for buffer underruns. cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler cdrecord: Permission denied. WARNING: Cannot set priority using setpriority(). cdrecord: WARNING: This causes a high risk for buffer underruns. scsidev: '/dev/cdrw' devname: '/dev/cdrw' scsibus: -2 target: -2 lun: -2 Warning: Open by 'devname' is unintentional and not supported. Linux sg driver version: 3.5.27 Using libscg version 'schily-0.9'. Driveropts: 'burnproof' SCSI buffer size: 64512 atapi: 1 Device type: Removable CD-ROM Version: 0 Response Format: 2 Capabilities : Vendor_info: 'QSI ' Identifikation : 'CDRW/DVD SBW-242' Revision : 'UX08' Device seems to be: Generic mmc2 DVD-ROM. Current: CD-RW Profile: DVD-ROM Profile: CD-ROM Profile: CD-R Profile: CD-RW (current) Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R Drive buf size : 1959936 = 1914 KB FIFO size : 4194304 = 4096 KB Track 01: data 455 MB Total size: 522 MB (51:47.76) = 233082 sectors Lout start: 523 MB (51:49/57) = 233082 sectors cdrecord: Operation not permitted. Cannot send SCSI cmd via ioctl. cdrecord: Operation not permitted. Cannot open or use SCSI driver. cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are root. cdrecord: For possible transport specifiers try 'cdrecord dev=help'. $ ll /dev/cdr* lrwxrwxrwx 1 root root 3 2007-09-11 16:21 /dev/cdrom - hdc lrwxrwxrwx 1 root root 3 2007-09-11 16:21 /dev/cdrw - hdc $ ll /dev/hdc brw-rw 1 root cdrom 22, 0 2007-09-11 16:21 /dev/hdc $ groups adm wheel cron audio cdrom video cdrw usb users locate portage plugdev I can't find anything, neither in the ChangeLogs (ebuild or cdrtools) nor on the forums/bugzilla. Everybody seems to like the idea of burning CDs with root permissions. Can anybody point me in the right direction? Thanks, Renat -- Probleme kann man niemals mit derselben Denkweise loesen, durch die sie entstanden sind. (Einstein)
Re: [gentoo-user] cdrecord says permission denied
On Tue, 11 Sep 2007 15:04:04 -0300 Rafael Barrera Oro [EMAIL PROTECTED] wrote: did you try adding yourself to the cdrom group? I *am* in the cdrom group, as I have already wrote. $ groups adm wheel cron audio cdrom video cdrw usb users locate portage plugdev Renat -- Probleme kann man niemals mit derselben Denkweise loesen, durch die sie entstanden sind. (Einstein) signature.asc Description: PGP signature
Re: [gentoo-user] cdrecord says permission denied
sorry, missed it 2007/9/11, Renat Golubchyk [EMAIL PROTECTED]: On Tue, 11 Sep 2007 15:04:04 -0300 Rafael Barrera Oro [EMAIL PROTECTED] wrote: did you try adding yourself to the cdrom group? I *am* in the cdrom group, as I have already wrote. $ groups adm wheel cron audio cdrom video cdrw usb users locate portage plugdev Renat -- Probleme kann man niemals mit derselben Denkweise loesen, durch die sie entstanden sind. (Einstein)
Re: [gentoo-user] cdrecord says permission denied
The only things that I can guess are that it is trying to update something in /proc or it needs to load a kernel module before writing. Just for fun - try burning a disk as root. Then try burning another dist as a non-root user. If the the second disk burns then one or the other of the above is the problem. -Good Luck, Stephen On 9/11/07, Renat Golubchyk [EMAIL PROTECTED] wrote: On Tue, 11 Sep 2007 15:04:04 -0300 Rafael Barrera Oro [EMAIL PROTECTED] wrote: did you try adding yourself to the cdrom group? I *am* in the cdrom group, as I have already wrote. $ groups adm wheel cron audio cdrom video cdrw usb users locate portage plugdev Renat -- Probleme kann man niemals mit derselben Denkweise loesen, durch die sie entstanden sind. (Einstein) -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] cdrecord says permission denied
On Tue, 11 Sep 2007 16:27:15 -0500 Stephen Wittig [EMAIL PROTECTED] wrote: The only things that I can guess are that it is trying to update something in /proc or it needs to load a kernel module before writing. Why would cdrecord want to update anything in /proc? There is no informatiom that cdrecord uses. And by the way, strace didn't show anything helpful. Just for fun - try burning a disk as root. Then try burning another dist as a non-root user. I can not burn CDs as a non-root user (i.e. unprivileged; I can burn with sudo). That's why I wrote the email in the first place. ;-) Cheers, Renat -- Probleme kann man niemals mit derselben Denkweise loesen, durch die sie entstanden sind. (Einstein) signature.asc Description: PGP signature
