[Bug 825158] [NEW] Cannot Blank or burn to CDRW disk with SuperGrub2
825158 at bugs.launchpad.net
Fri Aug 12 12:05:54 UTC 2011
Public bug reported:
Ubuntu 11.04, i386
My CDRW device:
scsi 1:0:0:0: CD-ROM HL-DT-ST DVD-RAM GH22NS30 2.00 PQ: 0 ANSI: 5
I needed to fix my Linux box that cannot boot so I burned Supergrub2 to my pocket CDRW disk. No problem. I fixed my PC with Supergrub2 disk.
I wanted to burn PartedMagic 6.6 to my pocket CDRW disk. I did this many
times before but it was not working this time, I received message that
there is no usable disk in my CDRW burner. I expected message that Disk
has to be blanked before it can be used. It looked like my system is
broken and cannot burn CDRW anymore.
I blanked my CDRW disk with wodim and it fixed the problem:
# wodim dev=/dev/scd0 blank=fast
Once the disk was blanked, it works as expected. I guess that SuperGrub2
disk triggers some bug in Brasero. All blank/burn was done on the same
PC (Ubuntu 11.04) with the same disk and drive.
Steps to repeat the issue:
1) download and burn SuperGrub2 ISO disk to your CDRW disk.
2) try to burn (or blank) other ISO image to your CDRW disk with SuperGrub2 (use Braseiro or Gnome file manager)
Details about my CDRW drive and CDRW disk:
# wodim -atip
Device was not specified. Trying to find an appropriate drive...
Detected CD-R drive: /dev/cdrw
Using /dev/cdrom of unknown capabilities
Device type : Removable CD-ROM
Version : 5
Response Format: 2
Vendor_info : 'HL-DT-ST'
Identification : 'DVD-RAM GH22NS30'
Revision : '2.00'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
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
ATIP info from disk:
Indicated writing power: 5
Reference speed: 2
Is not unrestricted
ATIP start of lead in: -11745 (97:25/30)
ATIP start of lead out: 107930 (24:01/05)
1T speed low: 0 (reserved val 0) 1T speed high: 4
2T speed low: 8 2T speed high: 0 (reserved val 10)
power mult factor: 4 6
recommended erase/write power: 5
A1 values: 02 4C D0
A2 values: 4A D8 5A
Disk type: Phase change
Manuf. index: 40
Manufacturer: INFODISC Technology Co., Ltd.
** Affects: brasero (Ubuntu)
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Cannot Blank or burn to CDRW disk with SuperGrub2
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