That explains it.  I use an older version of cobbler that doesn't
support lzma, I made it a gzip file and all is happy.

Thanks

On 2/17/12, Pat Riehecky <[log in to unmask]> wrote:
> For 6.2 I believe the initrd is an lzma archive.[1]
>
> As a test, on the distribution servers I have the following hashes
>
> http://ftp.scientificlinux.org/linux/scientific/6.2/i386/os/images/pxeboot/
> b3a92e0d122d437d706a877bcce03d29  initrd.img
>
> http://ftp.scientificlinux.org/linux/scientific/6.2/x86_64/os/images/pxeboot/
> e00a2019af88a21aeb7c49e3181e0c12  initrd.img
>
> Pat
>
> [1] upstream bug to get file to recognize lzma archives is bz#791343
>
> On 02/17/2012 12:11 PM, Jolynn Schmidt wrote:
>> Hello,
>>
>> I tried to pxeboot a 6.2 image using the files from the DVD iso in
>> images/pxeboot but I think that the initrd.img is bad (I get a kernel
>> panic).  looking into it more it seems that the initrd.img is not a
>> gziped cpio file.    I confirmed the md5sum after I copy the file to
>> my local machines but it is not seen as gzip file.
>>
>> # pwd
>> /mnt/tmp/images/pxeboot
>>
>> # md5sum initrd.img
>> 881250abc9f24ecb80e1fcee813a69f6  initrd.img
>>
>> # cp initrd.img /tmp/test/
>>
>> # md5sum /tmp/test/initrd.img
>> 881250abc9f24ecb80e1fcee813a69f6  /tmp/test/initrd.img
>>
>> # file /tmp/test/initrd.img
>> /tmp/test/initrd.img: data
>>
>> # mv initrd.img initrd.img.gz
>>
>> # gunzip initrd.img.gz
>>
>> gunzip: initrd.img.gz: not in gzip format
>>
>> Thanks,
>> Jolynn
>
>
> --
> Pat Riehecky
> Scientific Linux Developer
>
>