[KLUG Members] CD Burning, a Question or Two

[Bruce Smith]

> I downloaded ISO images for Knoppix and TheOpenCD a few days ago, and
> burned them to CD. They seemed to work fine when I tried booting and/or
> opening them on the machine I used, but when I tried them in my new
> laptop's reader, it doesn't seem to even be able to recognize them! Here
> is the command I used

If you'd support KLUG by buying those CD's from us, you wouldn't have
this problem!  Damn broadband is going to bankrupt KLUG yet!  :-)

> cdrecord dev= 1,0,0 fs=4096k driveropts=burnproof -v -useinfo speed=4
> -eject -pad -data ~/TheOpenCD-1stEdition.iso

If I was burning it, I would omit some of the options you specified.
I don't know if that's your problem or not, but this is what I'd do:

cdrecord dev=1,0,0 driveropts=burnproof speed=4 ~/TheOpenCD-1stEdition.iso

The -pad option was NOT causing your problem.  I used to specify that in
the past.

Also, are you burning to CDR or CDRW media?  A LOT of older drives 
won't read CDRW media.  

> I was also curious about this: I thought I'd heard/read somewhere that
> ISO images on the hard drive could somehow be mounted or otherwise set
> up to be read and used as though they'd been burned to CD. Does anyone
> know anything about this, or am I just losing my mind? The former does
> not preclude the latter, I know.

A simpler version of what TheBS said is:

  mount -oro,loop ~/TheOpenCD-1stEdition.iso /mnt/cdimage

The system can keep track of your loopback devices for you, so I don't
specify the loopback device file.  And recent Linux distributions can
auto-sense the filesystem type, so I don't bother typing it unless the
mount fails.

--------------------------------------------
Bruce Smith                bruce@armintl.com
System Administrator / Network Administrator
Armstrong International, Inc.
Three Rivers, Michigan  49093  USA
http://www.armstrong-intl.com/
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