From: dfp10 (dfp10@wadsworth.org)
Date: Wed Jun 12 2002 - 07:11:53 EDT
Hello!
I am trying to place several, distinct, backup mkisofs data directories
(dir1.iso, dir2.iso, dir3.iso,etc) on the same disk, to nearly fill the CD-RW
disk. After correctly recording the first directory on the "open" (-O) disk,
writing the second corrupts it.
Here is my current procedure:
1. mkisofs -l -L -r -o /tmp/dir1.iso /dir1
2. cdrw -O -i /tmp/dir1.iso (-O to keep the recording open). The cdrom
can be read (even though it is "open") and verified to be correct.
3. Try to obtain the track information in order to write the second
session: cdrw -M
Device: Plextor CD-RW etc
Firmware: Rev 1.04 etc
Track No. Type Start address
1 Data 0
Leadout Data 7708
Last session start address: 0 (N1= 0)
Next writable address: 285398 (N2= 285398)
4. I create the 2nd iso file using the above values of N1 and N2;
mkisofs -o /tmp/dir2.iso -r -C N1,N2 -M /vol/dev/rdsk/c0t2d0/cdrom /dir2
5. Then write rhe second iso directory: cdrw -i -O /tmp/dir2.iso
(keeping the recording open for a third recording)
Both the first and second records are always corrupted
Your advice will be summarized>
Thanks,
Don
###############################################################
Donald F. Parsons MB.BS, Ph.D, Research Physician,Wadsworth Ctr
NY State Dept of Health, ESP Box 509, Albany NY 12201-0509
dfp10@telemed.wadsworth.org (518)474-7047
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