mkisofs, cdrecord, 74min vs 80min CDROM media
Looking for info regarding my problem. This is my post at some forums,
sorry for not wanting to type it all again.
What I am using:
Alpha'a running Digital UNIX 4.0d
SCSI Yamaha CD-RW
cdrecord 1.9 w/ packaged mkisofs
I updated from cdrecord 1.6.1 to 1.9
hoping to solve this problem, but to no luck, here I am.
I am burning iso9660CD CDs. Here are my
commands:
/usr/local/bin/mkisofs -a -d -L -l -v -V
$VLABEL -o /dist/party3rd.img ../party3rd
/usr/local/bin/cdrecord -v -eject -dev=5,0
-speed=2 /dist/party3rd.img
Note: The speed is at 2. I lowered that
hoping to solve the problem, no luck. I am leaving it there to elimate that
issue.
Background:
We have been making these CDs for almost a
year now. I have verified some of the older CDs and they are not having this
problem. This problem arose when we
changed media, as far as I can tell (Corporate express doesnt keep the old
stuff
around). In the past we used IMATION (old
3m) 650 Meg 74min, up to 8x I think. The new IMATION is this 80 min 700
Meg stuff. No work. So I thought, oh
simple, get some 74 min 650 stuff. Still not working with our new Verbatim
74min
650Meg.
Poblems we are seeing:
Old problem:
We has an 86 Meg tar file. The tar file
was being corrupted and I would get I/O errors when I did a tar tvf.
Middle problems:
Same tar problem as above.
The directory logicaly after the tar file
is all messed up. Binary data in bourne shell scripts. Real weird. If I did
a strings
load.sh, it wouldnt even show anything,
all binary data.
Current problems:
tar problem has seemed to go away.
diretory after that, the files seem ok,
but uerf -R is reporting CAM SCSI errors while I do a file * on the
directory, and it
takes forever to complete.
Anyone who can give some insight into this
topic and/or has used these utilities before, I would greatly appreciate it.
Possibilites:
CD-RW going bad.
mkisofs having problems with such a large
file. I am going to test expanding that tar file out and recording then.
Though 2
files logically before it are 56 and 62
Meg respectively.
Notes:
I am not using the -a command anymore, that was removed with the latest
version of mkisofs i got with cdrecord-1.9.
Also, I noticed with the mkisofs I did just a minute ago (with debug on)
that it sorted the directories making the last directory /nsr, and the next
to last directory being netscape. /nsr is the directory with all the errors
(CAM SCSI errors) and netscape is the directory with the 86 Meg file.
Thanks for the input,
Jason Allison
Northrop Grumman Corp
Reply to: