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volospin
Apprentice
Joined: 06 Aug 2002
Posts: 156
Location: Hong Kong
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 Posted: Mon Nov 08, 2004 9:47 am Post subject: Can't burn CD now? (Gentoo 2.6.9 r1) |
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I didn't try but I think I can burn before with 2.6.8 kernel...
now I reinstall the whole system from scratch and got the following.
| Code: |
root@nitrogen: ~
hist:520 cmnd:20 jobs:0 # cdrecord -scanbus
Cdrecord-Clone 2.01 (i686-pc-linux-gnu) Copyright (C) 1995-2004 Jörg Schilling
cdrecord: Warning: Running on Linux-2.6.9-gentoo-r1
cdrecord: There are unsettled issues with Linux-2.5 and newer.
cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris.
cdrecord: Warning: Linux-2.6.8 introduced incompatible interface changes.
cdrecord: Warning: SCSI transport does no longer work for suid root programs.
cdrecord: Warning: if cdrecord fails, try to run it from a root account.
cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'.
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I saw some place mentioning kernel preventing burning.
Any clue?
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PIII-S 1.4G / 512MB / TUSL2-M / 3C920 x 2 / Seagate Barracuda IV 40GB |
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fourhead
l33t
Joined: 03 Sep 2003
Posts: 875
Location: Cologne, Germany
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| Posted: Mon Nov 08, 2004 11:25 am Post subject: |
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Same error here and I've heart of other people with the same issue. There seems to be no fix yet, I reverted back tp gentoo-dev-surces-2.6.8-r9 and everything works fine again!
Tom |
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Pepek
Guru
Joined: 25 Apr 2004
Posts: 313
Location: Tarnowskie Góry - Poland - Europe
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| Posted: Tue Nov 09, 2004 1:23 am Post subject: |
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Try sth like this as root ofcourse : | Code: | # chmod -s /usr/bin/cdrecord
# chmod -s /usr/bin/cdrdao |
This disable suid for that applications.
P.S. In future search forum before you ask. It doesn't hurt.
Cheers. 
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For Polish users :
$ man mas
Nie ma strony manuala dla mas
For Other users :
Sorry for my english, I know it's bad, but I think it's at least understandable |
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Cr0t
l33t
Joined: 27 Apr 2002
Posts: 945
Location: USA
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| Posted: Tue Nov 09, 2004 3:34 am Post subject: |
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| Pepek wrote: | Try sth like this as root ofcourse : | Code: | # chmod -s /usr/bin/cdrecord
# chmod -s /usr/bin/cdrdao |
This disable suid for that applications.
P.S. In future search forum before you ask. It doesn't hurt.
Cheers. |
cdrecord doesn't work as good anymore as it used to... even after unsetting, I get the same error. I have been fighting with that issue for some time now. Only the root user can burn now on my system... it's a pain, but we just have to wait for a fix!
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John5788
Advocate
Joined: 06 Apr 2004
Posts: 2140
Location: 127.0.0.1
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| Posted: Tue Nov 09, 2004 3:46 am Post subject: |
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its not really anything "broken". linus decided to make it so only root can burn cds in his kernel due to security issues
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Cr0t
l33t
Joined: 27 Apr 2002
Posts: 945
Location: USA
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| Posted: Tue Nov 09, 2004 3:58 am Post subject: |
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| John5788 wrote: | | its not really anything "broken". linus decided to make it so only root can burn cds in his kernel due to security issues |
Well, somebody should have given us a choice!
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Pepek
Guru
Joined: 25 Apr 2004
Posts: 313
Location: Tarnowskie Góry - Poland - Europe
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| Posted: Wed Nov 10, 2004 3:08 am Post subject: |
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| John5788 wrote: | | its not really anything "broken". linus decided to make it so only root can burn cds in his kernel due to security issues |
This is not true. Even on the vanilla kernel-2.6.9 (without any patch) I can burn cds as a normal user. To do that is only need cdrtools-2.1 and disable suid for cdrecord and cdrdao.
Cheers.
_________________
For Polish users :
$ man mas
Nie ma strony manuala dla mas
For Other users :
Sorry for my english, I know it's bad, but I think it's at least understandable |
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Cr0t
l33t
Joined: 27 Apr 2002
Posts: 945
Location: USA
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| Posted: Wed Nov 10, 2004 3:58 am Post subject: |
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| Pepek wrote: | | John5788 wrote: | | its not really anything "broken". linus decided to make it so only root can burn cds in his kernel due to security issues |
This is not true. Even on the vanilla kernel-2.6.9 (without any patch) I can burn cds as a normal user. To do that is only need cdrtools-2.1 and disable suid for cdrecord and cdrdao.
Cheers. |
I gotta try that tomorrow at work.
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John5788
Advocate
Joined: 06 Apr 2004
Posts: 2140
Location: 127.0.0.1
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| Posted: Wed Nov 10, 2004 6:54 am Post subject: |
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| Pepek wrote: | | John5788 wrote: | | its not really anything "broken". linus decided to make it so only root can burn cds in his kernel due to security issues |
This is not true. Even on the vanilla kernel-2.6.9 (without any patch) I can burn cds as a normal user. To do that is only need cdrtools-2.1 and disable suid for cdrecord and cdrdao.
Cheers. |
http://lwn.net/Articles/98379/
here, it says linus added a patch to prevent this from happening
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spockpv
n00b
Joined: 26 May 2004
Posts: 22
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| Posted: Wed Nov 10, 2004 11:11 am Post subject: |
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| Cr0t wrote: | | Pepek wrote: | Try sth like this as root ofcourse : | Code: | # chmod -s /usr/bin/cdrecord
# chmod -s /usr/bin/cdrdao |
This disable suid for that applications.
P.S. In future search forum before you ask. It doesn't hurt.
Cheers. |
cdrecord doesn't work as good anymore as it used to... even after unsetting, I get the same error. I have been fighting with that issue for some time now. Only the root user can burn now on my system... it's a pain, but we just have to wait for a fix! |
Same problem here, but even as root:
| Code: | LUCY bin # cdrecord -scanbus
Cdrecord-Clone 2.01 (i686-pc-linux-gnu) Copyright (C) 1995-2004 J�rg Schilling
cdrecord: Warning: Running on Linux-2.6.9-gentoo-r1
cdrecord: There are unsettled issues with Linux-2.5 and newer.
cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris.
cdrecord: Warning: Linux-2.6.8 introduced incompatible interface changes.
cdrecord: Warning: SCSI transport does no longer work for suid root programs.
cdrecord: Warning: if cdrecord fails, try to run it from a root account.
cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'. |
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dsd
Developer
Joined: 30 Mar 2003
Posts: 2162
Location: nr London
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| Posted: Wed Nov 10, 2004 1:57 pm Post subject: |
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| John5788 wrote: | http://lwn.net/Articles/98379/
here, it says linus added a patch to prevent this from happening |
it is true that linus added a patch. however, the effects of this patch are _not_ applied in any of the gentoo-dev-sources 2.6.8 releases or 2.6.9-r1 or 2.6.9-r2.
so that patch has nothing to do with whats going on here.
the problem here is that cdrecord defaults to looking for scsi cd writers. i'm guessing that everyone on this thread uses IDE (ATAPI) cd writers, so the correct command is:
| Code: | | cdrecord dev=ATAPI -scanbus |
i am fairly sure that cdrecord with 2.6.8 would give the same behaviour.
going back to the patch mentioned here..as mentioned above it was effectively excluded into 2.6.9-r2. however i've done some investigation and it seems that in 2.6.9 its fixed, so 2.6.9-r3 exhibits similar cd writing command checking that the mainline 2.6.9 does (Linus' filter in place). hopefully cd writing still works, but i'm looking for feedback in this thread
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nahpets
Veteran
Joined: 05 Oct 2003
Posts: 1178
Location: Montreal, Canada
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| Posted: Thu Nov 11, 2004 5:51 am Post subject: |
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I can get cdrecord to work using "dev=ATAPI" from CLI, but k3b refuses to detect my burner. Any ideas? I was able to burn with k3b a couple days ago, and all of a sudden, k3b stopped working. I didn't even reboot!!
EDIT
I just finished installing gentoo-dev-sources-2.6.9-r3 and k3b works again... |
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