Hi, > Using isoinfo (NOT iso-info) it seems stuff is in place: > [morituri-uninstalled] [tho...@otto trunk]$ isoinfo -N 207106 -i > Ladyhawke\ -\ Ladyhawke/data.iso -l
So the offset 207106 seems to be the right one. (I found this helptext of isoinfo: http://www.herongyang.com/CD-DVD/Data-CD-ISO-9660-isoinfo.html "-N sector Sector number where ISO image should start on CD" ) > a) can I write this (wrong) iso as is to a mixed mode cd to make a > perfect copy of my cd ? You will have to put it exactly to offset 207106 so that it works unaltered. Possibly one can do that with cdrecord -sao or some -raw* option if one has suitable input files for the tracks which come before the ISO track. But that's outside of my own experience. > I couldn't get this to mount either: > [r...@otto thomas]# mount -t iso9660 -o loop,sbsector=207106 dummy.iso > /mnt/iso/ Did you append the image to the end of a file of exactly the right size ? In this case: dd if=/dev/zero \ bs=2K count=1 seek=207105 \ of=cd_dummy.iso Note that you have to seek to (207106 - 1) and then write 1 block, to get 207106 blocks. Does this cd_dummy.iso show with ls -l a size of 424153088 bytes ? (Before you append data.iso) I just tried this with a multi-session CD on Debian 5.04. Track start block is 109287, track size is 3497: $ dd if=/dev/hda bs=2048 skip=109287 count=3497 of=track1.iso $ dd if=/dev/zero bs=2K count=1 seek=109286 of=cd_dummy.iso $ cat track1.iso >> cd_dummy.iso $ su # mount -t iso9660 -o loop,sbsector=109287 cd_dummy.iso /mnt # ls /mnt shows lots of files. ------------------------------------------------ > > Adventurous testers could try losetup option -o > > with a negative value or mount option "offset". > What value would this be there ? I tried in a loop with lots of values, > none worked. I would have thought that this might work # losetup -f /dev/loop0 # losetup -o -207106 /dev/loop0 data.iso # mount -t iso9660 -o sbsector=207106 /dev/loop0 /mnt but on Debian 5.04 (with 109287) it doesn't.
