/7.7/amd64/install77.iso is too big for a cdrom

[comet--berkeley]

The /7.7/amd64/install77.iso file is now over 740 megabytes in size and will not fit on a standard 700 megabyte cdrom

I upgraded my system using a usb stick and that worked fine so it is not a show stopper for me.

I tested to see if I could write the iso to a dvd but got errors:

#/usr/local/bin/growisofs -dvd-compat -Z /dev/rcd0c=/7.7/amd64/install77.iso

WARNING: /dev/rcd0c already carries isofs!
About to execute 'builtin_dd if=/7.7/amd64/install77.iso of=/dev/rcd0c obs=32k seek=0'
/dev/rcd0c: restarting DVD+RW format...
/dev/rcd0c: "Current Write Speed" is 4.1x1352KBps.
:-[ WRITE@LBA=210h failed with SK=2h/NO ADDITIONAL SENSE INFORMATION]: Input/output error
:-( write failed: Input/output error
/dev/rcd0c: flushing cache
/dev/rcd0c: writing lead-out
/dev/rcd0c: reloading tray

Does anyone have a way of writing a dvd from an iso on OpenBSD 7.7 amd ?

The growisofs works fine on NetBSD and Slackware Linux...

[jggimi]

I have been writing DVDs for years with growisofs, but haven't used the tool in the last year or two. I don't recall using the -dvd-compat option with data images, only with DVD video.

[jggimi]

I was wrong. Going back through faq13, I find the advice for image burning is no longer displayed, but is still in the HTML source, and it does recommend -dvd-compat:

<pre class="cmdbox">
# <b>growisofs -dvd-compat -Z /dev/rcd2c=cvs.iso</b>

Your I/O error may be due to the media. Try a different disc.

[shep]

I've been using xorriso/libisoburn with the tcltk GUI; even been able to write a 25GB blu-ray disk with it.

My setup in post in https://daemonforums.org/showthread.php?p=67780.

[comet--berkeley]

Originally Posted by jggimi

I was wrong. Going back through faq13, I find the advice for image burning is no longer displayed, but is still in the HTML source, and it does recommend -dvd-compat:

<pre class="cmdbox">
# <b>growisofs -dvd-compat -Z /dev/rcd2c=cvs.iso</b>

Your I/O error may be due to the media. Try a different disc.

Thanks for looking at this. I tried a different DVD to no success.

The same DVD that gets errors on OpenBSD 7.7 works fine on Slackware 15.0 and NetBSD 10.1

[jggimi]

I have just tested this, and am unable to replicate the sense I/O error.

# growisofs -dvd-compat -Z /dev/rcd0c=install77.iso 
WARNING: /dev/rcd0c already carries isofs!
About to execute 'builtin_dd if=install77.iso of=/dev/rcd0c obs=32k seek=0'
/dev/rcd0c: restarting DVD+RW format...
/dev/rcd0c: "Current Write Speed" is 4.1x1352KBps.
   14254080/782153728 ( 1.8%) @2.4x, remaining 3:35 RBU 100.0% UBU  10.0%
   25427968/782153728 ( 3.3%) @2.4x, remaining 3:58 RBU 100.0% UBU 100.0%
   36569088/782153728 ( 4.7%) @2.4x, remaining 3:44 RBU 100.0% UBU 100.0%
  ...
  749633536/782153728 (95.8%) @4.0x, remaining 0:07 RBU  97.0% UBU 100.0%
  763199488/782153728 (97.6%) @2.9x, remaining 0:04 RBU  56.5% UBU 100.0%
  781811712/782153728 (100.0%) @4.0x, remaining 0:00 RBU   1.1% UBU 100.0%
builtin_dd: 381920*2KB out @ average 3.1x1352KBps
/dev/rcd0c: flushing cache
/dev/rcd0c: writing lead-out
/dev/rcd0c: reloading tray

[comet--berkeley]

Originally Posted by jggimi

I have just tested this, and am unable to replicate the sense I/O error.

# growisofs -dvd-compat -Z /dev/rcd0c=install77.iso 
WARNING: /dev/rcd0c already carries isofs!
About to execute 'builtin_dd if=install77.iso of=/dev/rcd0c obs=32k seek=0'
/dev/rcd0c: restarting DVD+RW format...
/dev/rcd0c: "Current Write Speed" is 4.1x1352KBps.
   14254080/782153728 ( 1.8%) @2.4x, remaining 3:35 RBU 100.0% UBU  10.0%
   25427968/782153728 ( 3.3%) @2.4x, remaining 3:58 RBU 100.0% UBU 100.0%
   36569088/782153728 ( 4.7%) @2.4x, remaining 3:44 RBU 100.0% UBU 100.0%
  ...
  749633536/782153728 (95.8%) @4.0x, remaining 0:07 RBU  97.0% UBU 100.0%
  763199488/782153728 (97.6%) @2.9x, remaining 0:04 RBU  56.5% UBU 100.0%
  781811712/782153728 (100.0%) @4.0x, remaining 0:00 RBU   1.1% UBU 100.0%
builtin_dd: 381920*2KB out @ average 3.1x1352KBps
/dev/rcd0c: flushing cache
/dev/rcd0c: writing lead-out
/dev/rcd0c: reloading tray

Thanks for testing this. I think I need to get some new DVD+RW disks...

[comet--berkeley]

Originally Posted by comet--berkeley

Thanks for testing this. I think I need to get some new DVD+RW disks...

Well here I am replying to myself...
I purchased a brand new DVD+RW, put it in my machine and got the same error...

Using this same machine and the same DVD and similar "growisofs" software, I can write the DVD with no problems in Slackware Linux and NetBSD 10.1

#growisofs -dvd-compat -Z /dev/rcd0c=/7.7/amd64/install77.iso

I suspect software is the issue...

[jggimi]

Maybe the problem is due to your image file path:

/7.7/amd64/install77.iso

I don't know what filesystem the image is on. If not FFS, try copying the image file to FFS storage before burning.