Joseph,
First, the ISO you made from the CD is most likely not too big. Try this:
Code:
$ ls -alh filename.iso
And I'll bet that it's under 700MB.
Now you may want to verify that the CD and ISO file match the official MD5SUM.
Just go to an Ubuntu mirror, for example the MD5SUMs for Ubuntu-8.10:
http://mirrors.cat.pdx.edu/ubuntu-releases/8.10/MD5SUMS
To check the CD MD5SUM, use the following:
Code:
$ dd if=/dev/scd0 | head -c `stat --format=%s filename.iso` | md5sum
(Replace '/dev/scd0' with your particular device.)
And to check the MD5SUM of the ISO file is simply:
Code:
$ md5sum filename.iso
Assuming everything looks OK, try a test CD burn. For example, on my Ubuntu-8.04.2 I would try this on a CD-R:
Code:
$ wodim -dummy -v -dao -eject speed=16 driveropts=burnfree dev=/dev/scd1 -data filename.iso
Note: To check your driver options, use:
Code:
$ wodim dev=/dev/scd1 driveropts=help -checkdrive
(...)
Driver options:
burnfree Prepare writer to use BURN-Free technology
noburnfree Disable using BURN-Free technology
forcespeed Tell the drive to force speed even for low quality media
$
(Adjust the speed and device to your machine, of course)
If you are using CD-RW's, and there was previously data, then it may have been automatically mounted and will need to be unmounted before it can be blanked and recorded. For example:
Code:
$ df -h
Filesystem Size Used Avail Use% Mounted on
(...)
/dev/scd1 698M 698M 0 100% /media/cdrom1
$
$ sudo umount /media/cdrom1
$ wodim -v -eject -speed=2 blank=fast dev=/dev/scd1
Now, if things seemed to go fairly well, try the wodim command without the '-dummy' option.
And if it seems to burn OK, you can verify the MD5SUM of the new CD as mentioned above.
Hang in there - this stuff is confusing at first, but you'll get the hang of it.