Issues with RH7 kickstart via USB and PXE
Anders Blomdell
anders.blomdell at control.lth.se
Wed Mar 8 14:01:56 UTC 2017
On 2017-03-08 13:39, Andrew Simpson wrote:
> I have had a few issues migrating from RHEL 6 kickstart installs to RHEL 7.
>
> 1. pxeboot installs were failing because I did not have the LiveOS
> directory included in the customized ISO. Is the LiveOS directory (and the
> images in it) required in RHEL 7 now?
> 2. in pxeboot, I had to have the proper order of options in the
> isolinux.cfg (pxelinux.cfg) file. We were also using NFS for the install.
> Lastly, the pxeboot server is older, and caused issues with the nfs
> version. The order of relevant options was:
>
> inst.stage2=nfs4:10.0.0.1:/path/to/installdir
> inst.ks=nfs:10.0.0.1:/path/to/installdir/ksdir/file.ks
> inst.repo=nfs4:/10.0.0.1:/path/to/installdir
>
> Notice that inst.ks=nfs didn't require the nfs version, but repo and stage2
> did. The order was also important for whatever reason.
The NFS problem might be related to:
https://bugzilla.redhat.com/show_bug.cgi?id=1228272
>
> 3. USB installs worked under RHEL 6. Now, I'm having issues. Under RHEL
> 6 I would use live-iso-to-disk to write the files to the USB drive. This
> came from the livecd-tools packages in fedora.
>
> 4. I currently am able to do PXE installs and DVD installs without fail.
>
> Under RHEL 7, the livecd-tools utilities no longer work for this as the
> livecd-iso-to-disk script finds the LiveOS directory in the iso and stops
> processing anything else, treating it as a LiveOS image. So this goes back
> to Number 1 above. Is the LiveOS required? Is there anyway to use
> livecd-tools to generate the USB drive?
>
> The generation of the iso is correct and I'm using isohybrid on the .iso.
> Under RHEL 6, the usb drive would work flawlessly.
>
> I switched to using the following while building on a RHEL.6 (soon to be
> rhel.7) system:
>
> pv -treb my.iso | dd of=/dev/sdc conv=noerrors,notrunc
>
>
> So, is there a better way to make a bootable usb via command line -or- what
> is the proper way to do this?
>
> Should the iso layout mostly be exactly like the oem iso, with the
> exception of the changed isolinux.cfg file(s), ks files, and additional
> packages/repodata?
>
> Thanks for all and any help/information you can provide!
>
> Andrew
>
>
>
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--
Anders Blomdell Email: anders.blomdell at control.lth.se
Department of Automatic Control
Lund University Phone: +46 46 222 4625
P.O. Box 118
SE-221 00 Lund, Sweden
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