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Old 23rd August 2016
yezster yezster is offline
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Default growisofs (dvd+rw-tools) in openbsd

Greetings everyone,

I'm just curious about writing our ISO images to dvd blank disc.

I have tried reading the OpenBSD FAQ in the multimedia section about writing to dvd disc and followed its instructions, read some man pages of those said packages, but every time I write to DVD using growisofs it always seemed to fail, damaging my blank DVD disc with junk data. I tried viewing my blank dvd disc using dvd+rw-mediainfo, it seems ok and able to recognize that the disc is a normal blank DVD-R disc, but every time I tried writing to it using growisofs -dvd-compat -Z /dev/rcd0c=mydvd.iso it always seems to fail, I tried growisofs -dvd-compat -speed=1 -Z /dev/rcd0c=mydvd.iso thinking if I write using the slowest possible speed would fix the problem, but to no avail it still fails the same way. I tried using growisofs -dry-run, thinking that it would simulate dvd writing but it was not even helpful since it just gives you a 1 liner text then quits.

My iso images is made using mkhybrid -r -o mydvd.iso /home/<myhome>/mydvd. Tried mounting my ISO files (using vndconfig and mount) seems ok and working fine.

Are there other alternative packages I could use to write iso images to DVDs. Windows Nero is able to write to my blank DVD with no problem, but I don't want to boot to windows each and every time I have to write my ISO files to DVD.

I'm using OpenBSD 5.9 Patched #25
dmesg of my dvd-rom drive:
"cd0 at scsibus3 targ 2 lun 0: <ATAPI, iHAS124 B, AL0S> ATAPI 5/cdrom removable"


Thanks everyone... Sorry for my lameness...

Last edited by yezster; 23rd August 2016 at 11:44 PM.
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Old 24th August 2016
ocicat ocicat is offline
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Default

It is unclear whether only mydvd.iso, or whether burning any image created through mkhybrid(8) fails. I'm guessing the latter.

Having said that, here are some of the obvious questions:
  • What is the error displayed by growisofs(1m)?
  • What is the size of the *.iso being burned?
The growisofs(1m) manpage gives multiple commands which can be used to burn files to a DVD-R(W) disc, however, the only form for burning a pre-existing *.iso is the one you cite above. The alternatives listed may be worth exploring.

Lastly, providing dmesg(8) output as to what the kernel understands about your DVD-R drive may be in order.
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