Bug #16654
closed
Error while building host using `PXEGrub2 global default` provisioning template
Added by roman plevka over 7 years ago.
Updated over 7 years ago.
Description
There seems to be a problem with using `PXEGrub2 global default` provisioning template:
Rendering the template fails with:
"Unable to render PXEGrub2 template 'PXEGrub2 global default': undefined method `each' for nil:NilClass"
foreman/production.log:
https://paste.fedoraproject.org/432624/53048147/
1. assign `PXEGrub2 global default` template as a PXEGrub2 template to some host
2. try to provision (build) host using this OS
3. the build will be rolled back due to error during rendering the template
- Category set to Templates
- Status changed from New to Feedback
It looks like you've associated this template to an operating system/host, but it's not meant to be used that way. The global default templates are written by pressing the build PXE default buttons and are written to /default or similar - a default template isn't applicable to hosts, hence the error.
Use an OS-specific GRUB2 template instead for OSes and hosts, e.g. Kickstart default PXEGrub2.
But there is no "Preseed default PXEGrub2". How to build one?
Related to #17297.
Use "New Template" under Hosts > Provisioning Templates and set the type to "PXEGrub2 template". Don't use the name "default" if it's not shipped by default - use any name you like.
I've proposed https://github.com/theforeman/community-templates/pull/346, however it doesn't work as GRUB2 in Debian jessie (and apparently stretch too) only try to download ''grub2/grub.cfg'' (and not the filename with MAC address).
Fedora has several patches to handle this at
http://pkgs.fedoraproject.org/cgit/rpms/grub2.git/tree/:
- 0019-Add-fw_path-variable-revised.patch
- 0025-Search-for-specific-config-file-for-netboot.patch <--- This is the main one!
- 0049-use-fw_path-prefix-when-fallback-searching-for-grub-.patch
- 0050-Try-mac-guid-etc-before-grub.cfg-on-tftp-config-file.patch
- 0061-Try-prefix-if-fw_path-doesn-t-work.patch
Workaround is
sudo ln -s grub.cfg-01-... /srv/tftp/grub2/grub.cfg
but you can only provision one host at a time.
And even with the workaround, I get:
boot/Debian-8.6-x86_64-linux has invalid signature
you need to load the kernel first
- Status changed from Feedback to Closed
Hello, thanks for info. I will carry on in the PR which is more relevant place. I think this can be closed now. Feel free to reopen if you think we have a bug in Foreman core.
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