Bug#688229: Burning data DVD looks successful but mounting fails with ISOFS: Unable to identify CD-ROM format.

Paul Menzel pm.debian at googlemail.com
Sat Sep 22 09:04:26 UTC 2012


Dear Thomas,


I am sorry for my late reply.

Also I am CCing just to be sure. If you get the message twice because
you subscribed to the report, please tell me.


Am Donnerstag, den 20.09.2012, 22:51 +0200 schrieb Thomas Schmitt:

> >         brasero (libisofs)DEBUG : Processed 2119108 of 2119108 KB (100 %)
> 
> It went well, at least as far as libisofs was involved.
> 
> So this is not the problem with premature end after 50 %.
> And it is not the riddling CD problem, where Brasero CDs are
> unreadable, whereas xorriso burned CDs are ok.

Great!

> > BraseroLibburn Async SYNCHRONIZE CACHE succeeded after 0.8 seconds
> > ...
> > BraseroLibburn Closing track 01  (absolute track number 1)
> > BraseroLibburn Async CLOSE TRACK SESSION succeeded after 0.4 seconds
> > BraseroLibburn Closing session
> > BraseroLibburn Async CLOSE TRACK SESSION succeeded after 5.3 seconds
> 
> These messages stem from libburn.
> They indicate that it saw no severe error message from the drive
> and that it finished the burn run.
> I cannot tell, though, how many data were passed through libburn.
> 
> 
> >         [ 9103.816252] ISOFS: Unable to identify CD-ROM format.
> 
> What do you get from
> 
>   dd if=/dev/sr1 bs=2048 skip=16 count=1 | od -c
> 
> With a valid ISO image, the output should begin by
> 
>   0000000 001   C   D   0   0   1
> 
> and consist of up to 128 lines of text.

$ dd if=/dev/sr1 bs=2048 skip=16 count=1 | od -c
1+0 Datensätze ein
1+0 Datensätze aus
2048 Bytes (2,0 kB) kopiert, 0,00199071 s, 1,0 MB/s
0000000   >  \0   0 034 001  \0  \0 001 034   0   F 034   +  \0  \0   +
0000020 034   F   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001
0000040 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0   2  \0
0000060   8  \0   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0   >  \0
0000100 224   ! 001  \0  \0 001   ! 224   @ 276   +  \0  \0   + 276   @
0000120   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001 034  \0
0000140   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0   2  \0   9  \0
0000160   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0   >  \0  \f   '
0000200 001  \0  \0 001   '  \f   u   S   -  \0  \0   -   S   u   p  \t
0000220 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001 034  \0   I  \0
0000240   M  \0   G  \0   _  \0   2  \0   4  \0   3  \0   0  \0   .  \0
0000260   J  \0   P  \0   G  \0   ;  \0   1  \0   >  \0 267   , 001  \0
0000300  \0 001   , 267 016   y 037  \0  \0 037   y 016   p  \t 023 022
0000320   1   !  \0  \0  \0  \0 001  \0  \0 001 034  \0   I  \0   M  \0
0000340   G  \0   _  \0   2  \0   4  \0   3  \0   2  \0   .  \0   J  \0
0000360   P  \0   G  \0   ;  \0   1  \0   >  \0 247   0 001  \0  \0 001
0000400   0 247 340   I   "  \0  \0   "   I 340   p  \t 023 022   1   !
0000420  \0  \0  \0  \0 001  \0  \0 001 034  \0   I  \0   M  \0   G  \0
0000440   _  \0   2  \0   4  \0   3  \0   3  \0   .  \0   J  \0   P  \0
0000460   G  \0   ;  \0   1  \0   >  \0 361   4 001  \0  \0 001   4 361
0000500 005   G      \0  \0       G 005   p  \t 023 022   1   !  \0  \0
0000520  \0  \0 001  \0  \0 001 034  \0   I  \0   M  \0   G  \0   _  \0
0000540   2  \0   4  \0   3  \0   4  \0   .  \0   J  \0   P  \0   G  \0
0000560   ;  \0   1  \0   >  \0 372   8 001  \0  \0 001   8 372 252 020
0000600   !  \0  \0   ! 020 252   p  \t 023 022   1   !  \0  \0  \0  \0
0000620 001  \0  \0 001 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0
0000640   4  \0   3  \0   5  \0   .  \0   J  \0   P  \0   G  \0   ;  \0
0000660   1  \0   >  \0 035   = 001  \0  \0 001   = 035 252 261 035  \0
0000700  \0 035 261 252   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0
0000720  \0 001 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0
0000740   3  \0   7  \0   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0
0000760   >  \0 324   @ 001  \0  \0 001   @ 324   ; 206   %  \0  \0   %
0001000 206   ;   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001
0001020 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0   3  \0
0001040   8  \0   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0   >  \0
0001060 205   E 001  \0  \0 001   E 205   M 255   &  \0  \0   & 255   M
0001100   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001 034  \0
0001120   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0   3  \0   9  \0
0001140   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0   >  \0   [   J
0001160 001  \0  \0 001   J   [ 250   P   "  \0  \0   "   P 250   p  \t
0001200 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001 034  \0   I  \0
0001220   M  \0   G  \0   _  \0   2  \0   4  \0   4  \0   0  \0   .  \0
0001240   J  \0   P  \0   G  \0   ;  \0   1  \0   >  \0 246   N 001  \0
0001260  \0 001   N 246   q   K   &  \0  \0   &   K   q   p  \t 023 022
0001300   1   !  \0  \0  \0  \0 001  \0  \0 001 034  \0   I  \0   M  \0
0001320   G  \0   _  \0   2  \0   4  \0   4  \0   1  \0   .  \0   J  \0
0001340   P  \0   G  \0   ;  \0   1  \0   >  \0   p   S 001  \0  \0 001
0001360   S   p 340 034   $  \0  \0   $ 034 340   p  \t 023 022   1   !
0001400  \0  \0  \0  \0 001  \0  \0 001 034  \0   I  \0   M  \0   G  \0
0001420   _  \0   2  \0   4  \0   4  \0   2  \0   .  \0   J  \0   P  \0
0001440   G  \0   ;  \0   1  \0   >  \0 364   W 001  \0  \0 001   W 364
0001460 231   G   '  \0  \0   '   G 231   p  \t 023 022   1   !  \0  \0
0001500  \0  \0 001  \0  \0 001 034  \0   I  \0   M  \0   G  \0   _  \0
0001520   2  \0   4  \0   4  \0   3  \0   .  \0   J  \0   P  \0   G  \0
0001540   ;  \0   1  \0   >  \0 335   \ 001  \0  \0 001   \ 335   4   6
0001560   )  \0  \0   )   6   4   p  \t 023 022   1   !  \0  \0  \0  \0
0001600 001  \0  \0 001 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0
0001620   4  \0   4  \0   4  \0   .  \0   J  \0   P  \0   G  \0   ;  \0
0001640   1  \0   >  \0 004   b 001  \0  \0 001   b 004 020   }   '  \0
0001660  \0   '   } 020   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0
0001700  \0 001 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0
0001720   4  \0   5  \0   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0
0001740   >  \0 364   f 001  \0  \0 001   f 364 277 251   "  \0  \0   "
0001760 251 277   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001
0002000 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0   4  \0
0002020   6  \0   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0   >  \0
0002040   J   k 001  \0  \0 001   k   J 336 207   "  \0  \0   " 207 336
0002060   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001 034  \0
0002100   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0   4  \0   9  \0
0002120   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0   >  \0 233   o
0002140 001  \0  \0 001   o 233   R 240   %  \0  \0   % 240   R   p  \t
0002160 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001 034  \0   I  \0
0002200   M  \0   G  \0   _  \0   2  \0   4  \0   5  \0   1  \0   .  \0
0002220   J  \0   P  \0   G  \0   ;  \0   1  \0   >  \0   P   t 001  \0
0002240  \0 001   t   P 205   W   '  \0  \0   '   W 205   p  \t 023 022
0002260   1   !  \0  \0  \0  \0 001  \0  \0 001 034  \0   I  \0   M  \0
0002300   G  \0   _  \0   2  \0   4  \0   5  \0   2  \0   .  \0   J  \0
0002320   P  \0   G  \0   ;  \0   1  \0   >  \0   ;   y 001  \0  \0 001
0002340   y   ;   e 035   '  \0  \0   ' 035   e   p  \t 023 022   1   !
0002360  \0  \0  \0  \0 001  \0  \0 001 034  \0   I  \0   M  \0   G  \0
0002400   _  \0   2  \0   4  \0   5  \0   3  \0   .  \0   J  \0   P  \0
0002420   G  \0   ;  \0   1  \0   >  \0 037   ~ 001  \0  \0 001   ~ 037
0002440 337   M   '  \0  \0   '   M 337   p  \t 023 022   1   !  \0  \0
0002460  \0  \0 001  \0  \0 001 034  \0   I  \0   M  \0   G  \0   _  \0
0002500   2  \0   4  \0   5  \0   4  \0   .  \0   J  \0   P  \0   G  \0
0002520   ;  \0   1  \0   >  \0  \t 203 001  \0  \0 001 203  \t   E 033
0002540   %  \0  \0   % 033   E   p  \t 023 022   1   !  \0  \0  \0  \0
0002560 001  \0  \0 001 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0
0002600   4  \0   5  \0   6  \0   .  \0   J  \0   P  \0   G  \0   ;  \0
0002620   1  \0   >  \0 255 207 001  \0  \0 001 207 255   X 376   &  \0
0002640  \0   & 376   X   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0
0002660  \0 001 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0
0002700   5  \0   7  \0   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0
0002720   >  \0 215 214 001  \0  \0 001 214 215 221 344   #  \0  \0   #
0002740 344 221   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001
0002760 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0   6  \0
0003000   1  \0   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0   >  \0
0003020  \n 221 001  \0  \0 001 221  \n   7 225   )  \0  \0   ) 225   7
0003040   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001 034  \0
0003060   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0   6  \0   3  \0
0003100   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0   >  \0   = 226
0003120 001  \0  \0 001 226   = 276 240   $  \0  \0   $ 240 276   p  \t
0003140 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001 034  \0   I  \0
0003160   M  \0   G  \0   _  \0   2  \0   4  \0   6  \0   4  \0   .  \0
0003200   J  \0   P  \0   G  \0   ;  \0   1  \0   >  \0 322 232 001  \0
0003220  \0 001 232 322   p 030      \0  \0     030   p   p  \t 023 022
0003240   1   !  \0  \0  \0  \0 001  \0  \0 001 034  \0   I  \0   M  \0
0003260   G  \0   _  \0   2  \0   4  \0   6  \0   6  \0   .  \0   J  \0
0003300   P  \0   G  \0   ;  \0   1  \0   >  \0 326 236 001  \0  \0 001
0003320 236 326   o 267 033  \0  \0 033 267   o   p  \t 023 022   1   !
0003340  \0  \0  \0  \0 001  \0  \0 001 034  \0   I  \0   M  \0   G  \0
0003360   _  \0   2  \0   4  \0   6  \0   7  \0   .  \0   J  \0   P  \0
0003400   G  \0   ;  \0   1  \0   >  \0   M 242 001  \0  \0 001 242   M
0003420 206   I 036  \0  \0 036   I 206   p  \t 023 022   1   !  \0  \0
0003440  \0  \0 001  \0  \0 001 034  \0   I  \0   M  \0   G  \0   _  \0
0003460   2  \0   4  \0   6  \0   8  \0   .  \0   J  \0   P  \0   G  \0
0003500   ;  \0   1  \0   >  \0 027 246 001  \0  \0 001 246 027 260 270
0003520 037  \0  \0 037 270 260   p  \t 023 022   1   !  \0  \0  \0  \0
0003540 001  \0  \0 001 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0
0003560   4  \0   7  \0   0  \0   .  \0   J  \0   P  \0   G  \0   ;  \0
0003600   1  \0   >  \0 017 252 001  \0  \0 001 252 017   { 030   !  \0
0003620  \0   ! 030   {   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0
0003640  \0 001 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0
0003660   7  \0   1  \0   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0
0003700   >  \0   3 256 001  \0  \0 001 256   3 235 351   !  \0  \0   !
0003720 351 235   p  \t 023 022   1   !  \0  \0  \0  \0 001  \0  \0 001
0003740 034  \0   I  \0   M  \0   G  \0   _  \0   2  \0   4  \0   7  \0
0003760   2  \0   .  \0   J  \0   P  \0   G  \0   ;  \0   1  \0  \0  \0
0004000

> What do you get from
>   dvd+rw-mediainfo /dev/sr1
> 
> (Have medium and tray already loaded. It will not pull in the tray.)

$ dvd+rw-mediainfo /dev/sr1
INQUIRY:                [HL-DT-ST][DVDRAM GSA-4167B][DL12]
GET [CURRENT] CONFIGURATION:
 Mounted Media:         10h, DVD-ROM
 Media ID:              MCC 03RG20  
 Current Write Speed:   16.0x1385=22161KB/s
 Write Speed #0:        16.0x1385=22161KB/s
 Write Speed #1:        16.0x1385=22160KB/s
 Write Speed #2:        8.0x1385=11081KB/s
 Write Speed #3:        8.0x1385=11080KB/s
 Write Speed #4:        4.0x1385=5540KB/s
 Write Speed #5:        2.0x1385=2770KB/s
 Speed Descriptor#0:    02/1059567 R at 4.1x1385=5730KB/s W at 16.0x1385=22161KB/s
 Speed Descriptor#1:    02/1059567 R at 4.1x1385=5730KB/s W at 16.0x1385=22160KB/s
 Speed Descriptor#2:    02/1059567 R at 4.1x1385=5730KB/s W at 8.0x1385=11081KB/s
 Speed Descriptor#3:    02/1059567 R at 4.1x1385=5730KB/s W at 8.0x1385=11080KB/s
 Speed Descriptor#4:    02/1059567 R at 4.1x1385=5730KB/s W at 4.0x1385=5540KB/s
 Speed Descriptor#5:    02/1059567 R at 4.1x1385=5730KB/s W at 2.0x1385=2770KB/s
READ DVD STRUCTURE[#0h]:
 Media Book Type:       00h, DVD-ROM book [revision 0]
 Legacy lead-out at:    1059568*2KB=2169995264
READ DISC INFORMATION:
 Disc status:           complete
 Number of Sessions:    1
 State of Last Session: complete
 Number of Tracks:      1
READ TRACK INFORMATION[#1]:
 Track State:           complete incremental
 Track Start Address:   0*2KB
 Free Blocks:           0*2KB
 Track Size:            1059568*2KB
 Last Recorded Address: 1059567*2KB
FABRICATED TOC:
 Track#1  :             14 at 0
 Track#AA :             14 at 1059568
 Multi-session Info:    #1 at 0
READ CAPACITY:          1059568*2048=2169995264

> >         $ xorriso -outdev /dev/sr1 -check_media what=disc use=outdev
> > ...
> >         Media current: DVD-ROM      
> >         Media status : is written , is closed
> >         A
> > Media summary: 1 session, 1059568 data blocks, 2069m data, 0 free
> > ...
> > xorriso : UPDATE : 1059568 of 1059568 blocks read in 265 s = 5.9xD
> > Media checks :        lba ,       size , quality
> > Media region :          0 ,        192 , + good
> > Media region :        192 ,         16 , + slow
> > Media region :        208 ,    1059360 , + good
> 
> This xorriso command did not judge whether the medium bears an ISO 9660
> filesystem. It only inspected the medium state.
> 
> The medium is reported by the drive as DVD-ROM, which is permissible
> if it is closed. (Is it a DVD-R ?)

Yes, it is only writable one, so a DVD-R.

> Further the drive did not report any errors when reading the
> data blocks. The average reading speed of 5.9x is not overly high
> but does not yet indicate a large number of re-tries. No long pauses
> were perceived while reading, except the small speed glitch at block 192
> which is quite normal.
> 
> 
> The following xorriso run would tell more about the recognizability of
> ISO 9660 content on the medium:
> 
>   xorriso -outdev /dev/sr1 -toc

$ xorriso -outdev /dev/sr1 -toc
xorriso 1.2.2 : RockRidge filesystem manipulator, libburnia project.

xorriso : NOTE : Disc status unsuitable for writing
Drive current: -outdev '/dev/sr1'
Media current: DVD-ROM
Media status : is written , is closed
Media summary: 1 session, 1059568 data blocks, 2069m data,     0 free
Drive current: -outdev '/dev/sr1'
Drive type   : vendor 'HL-DT-ST' product 'DVDRAM GSA-4167B' revision 'DL12'
Media current: DVD-ROM
Media status : is written , is closed
Media blocks : 1059568 readable , 0 writable , 1059568 overall
TOC layout   : Idx ,  sbsector ,       Size , Volume Id
Other session:   1 ,         0 ,   1059568s , 
Media summary: 1 session, 1059568 data blocks, 2069m data,     0 free

> This run would try to load the directory tree of the ISO image
> and issue error messages if there is no proper ISO 9660 on the medium:
> 
>   xorriso -indev /dev/sr1
> 
> It has to be feared that it will bail out similarly to the mount attempts.

$ xorriso -indev /dev/sr1
xorriso 1.2.2 : RockRidge filesystem manipulator, libburnia project.

xorriso : NOTE : Loading ISO image tree from LBA 0
libisoburn: WARNING : No ISO 9660 image at LBA 0. Creating blank image.
Drive current: -indev '/dev/sr1'
Media current: DVD-ROM
Media status : is written , is closed
Media summary: 1 session, 1059568 data blocks, 2069m data,     0 free
Volume id    : 'ISOIMAGE'


I think I forgot to add that the burner and the same DVD medium were
used successfully with for example K3b and I also think xorriso.


Thanks a lot for your help!

Paul
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