[ubuntu-za] ISO image

[Chris Schoonbee]

Juan Koegelenberg wrote:
> Hey
> How can I make a ISO image of my 9.10CD.
> tried brasero and dd if=/dev/cdrom of=ubunt-9.10.iso
> brasero gives recurring file error and dd... makes a 79meg file
>
> Thax
> Juan
>
>
>   
It seems as if your CD is corrupted in someway.
Rather than downloading a whole new ISO, I would rescue as much of it as 
possible following Hannes' earlier advice using ddrescue.

Then use zsync to fix your ISO - it will just download the corrupted 
portion.  It happened to an ISO I had burned and zync fixed it up in 
three minutes!  You may have to install the zsync package first.

Usage is of the form:
zync [zync control file URL] -i [path/to/brokenisoimage] -o 
[filename/for/fixedISO]
The url of the zsync control file that I used was
http://za.releases.ubuntu.com/9.10/ubuntu-9.10-desktop-i386.iso.zsync
so command was like this:
zync 
http://za.releases.ubuntu.com/9.10/ubuntu-9.10-desktop-i386.iso.zsync -i 
~/Desktop/broken9.10.iso -o /tmp/fixed9.10.iso


but if it is a 64-bit version etc you can visit 
http://za.releases.ubuntu.com/9.10/ and browse for the relevant .zsync 
file in the list at the bottom of the page and then copy and paste the 
link url into your command.



Hope this helps.

Regards,
Chris