Please review and apply patch at will.
Created attachment 84663 [details, diff] grub-error-guide.xml.patch Patch over the current latest version.
Oh, forgot. Give thanks to pille@struction.de in the ChangeLog :)
I noticed (thanks to nightmorph) that there is missing information. We'll ask the user about it and update the patch accordingly before commiting.
Created attachment 84941 [details, diff] grub-error-guide.xml.patch Added pax flag removal and restoration commands.
Do not commit yet, please. The user has been using <grub-0.96. Maybe using a new version of grub solves the issue as well.
It's been a while, if there was a bug, it was probably already fixed upstream. Closing. Feel free to reopen if you still think that it's needed.