Booting shipped live CDs?

[Bob Parker]

postmast3r wrote:
> On 6/20/05, Matt Galvin <matt.t.galvin at gmail.com> wrote:
> 
>>>I just got my free shipment of Ubuntu CDs.  Unfortunately, NONE of the
>>>live CDs that were shipped can successfully boot and get stuck at
>>>"Retrieving casper" (the part immediately after I choose my language).
>>>After half a minute of funny noises coming from my drive while at
>>>that stage, I am told there is a read error and to retry.  So, I
>>>retried...10 times and it never gets past that stage.  I see no
>>>visible scratches or anything on any of the CDs yet they all fail at
>>>exactly the same spot when booted.
>>
>>>I had no problems booting Ubuntu's live CD that I downloaded straight
>>>from www.ubuntu.com and burned myself onto a CDR.
>>
>>>Did anyone else have this same problem with their shipped live CDs?
>>
>>Yes, none of my live CD's work either :(
>>
>>Matt
>>
> 
> 
> What is also interesting is, the md5sums of every single Ubuntu 5.04
> Live CD I got does not match the md5 sums at:
> http://us.releases.ubuntu.com/releases/5.04/MD5SUMS
> 
> Here are the md5sums for each of the live CDs I could not boot:
> d9fd22fbd6510b5903789993e090f406  cd1.iso
> d9fd22fbd6510b5903789993e090f406  cd2.iso
> d9fd22fbd6510b5903789993e090f406  cd3.iso
> 
> The md5sum of the live CD I personally downloaded from www.ubuntu.com is:
> 77a1a8be45e0cc93a14c9b9bf00f6648  ubuntu-5.04-live-i386.iso
> which matches the md5sum listed on the site.
> 
> Also, the live CDs that failed to boot are 307200 bytes larger in
> their ISO than the one I downloaded.  655566848 bytes for the live CDs
> I got shipped, 655259648 bytes for the live CD I downloaded.
> 
> I also did "md5sum -c md5sum.txt" from one of the Live CDs I got
> shipped and none of the md5sums failed to verify except for one file:
> 
> $ md5sum -c md5sum.txt
> md5sum: can't open ./install/netboot/pxelinux.cfg/default
> md5sum: MD5 check failed for './install/netboot/pxelinux.0'
> 
> But I am not sure if that would cause the retrieving casper stage to fail.
> 
FWIW my i386 install cd failed to install, in the middle of the 
install it claimed there was no available cd to read. I made 2 
attempts and got same result.

Next I booted a Knoppix, installed off that, then used what I had to 
burn a copy of the Ubuntu install cd.

The installation off the burnt cd went without a hitch.

Bob