Just grab the xz package. I roll initrds (for a custom pxe boot setup) on a CentOS 5.8 host. I've rerolled the initrd for 6.2 some time ago and you've reminded me to take care of 6.3 today. Name : xz Arch : x86_64 Version : 4.999.9 Release : 0.3.beta.20091007git.el5 Size : 473 k Repo : installed Summary : LZMA compression utilities URL : http://tukaani.org/xz/ License : LGPLv2+ Description: XZ Utils are an attempt to make LZMA compression easy to use on free (as in : freedom) operating systems. This is achieved by providing tools and libraries : which are similar to use than the equivalents of the most popular existing : compression algorithms. : : LZMA is a general purpose compression algorithm designed by Igor Pavlov as : part of 7-Zip. It provides high compression ratio while keeping the : decompression speed fast. ---~~.~~--- Mike // SilverTip257 // On Wed, Jul 11, 2012 at 11:02 AM, Michael Coffman <michael.coffman at avagotech.com> wrote: > On Wed, Jul 11, 2012 at 6:48 AM, Jerry Geis <geisj at pagestation.com> wrote: > >> What format is the images/pxeboot/initrd.img file on the DVD ? >> >> Its not gzip >> its not straight cpio >> >> What is it? >> I wish to change it. >> >> I'm finding information on changing the gzip version of initrd >> but not the PXE one. >> >> If I do "file initrd.img" it just says data. >> >> > I ran into this also. It's compressed using xz. You will probably need > to be on an rhel6/centos6 system to manage the image. > > >> Thanks, >> >> Jerry >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos >> > > > > -- > -MichaelC > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos