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Re: kickstart using GPT... without EFI

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On Fri, Oct 7, 2011 at 4:53 PM, Jonathan Smith <smithj@xxxxxxxxxx> wrote:
We have an x86_64 system with >2tb drives which does not have EFI. However, the BIOS will boot GPT if present.

Unfortunately, anaconda seems to only use GPT if (U)EFI is present. I've tried creating the GPT label in a ks %pre[1][2], but it didn't help... anaconda always overwrites it, even though I don't have a clearpart in my ks.

I can successfully convert it after-the-fact, but I'd prefer that it be done correctly by kickstart.

Suggestions?

       Jonathan

[1]: http://bodgitandscarper.co.uk/centos/forcing-guid-partition-table-on-a-disk-with-centos-6/
[2]: https://www.redhat.com/archives/kickstart-list/2010-June/msg00001.html


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Jonathan,

I had the same problem.  I believe I saw that this would be changed in F16.

Depending on the version of anaconda, if you make a GPT label in %pre and then don't include '--initlabel' with clearpart, it will leave your GPT label.  But, It will overwrite it with a DOS partition if it is the boot drive AND you have 'clearpart --all'.  That is done in pyanaconda/storage/partitioning.py in the function clearPartitions starting with the comment

  # make sure that the the boot device has the correct disklabel type if
  # we're going to completely clear it.

and going to the end of the function.


So, my solution was to make an updates.img with a partitioning.py without that whole chunk of code.  It works fine.

Brad
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