2013-07-03

[Technology] "error: symbol 'grub_term_highlight_color' not found."

I just upgraded from Fedora 18 to Fedora 19 and am a bit sad to run into a pretty horrific error when following the published upgrade instructions, again.



I consider this link to be the official upgrade instructions:

http://docs.fedoraproject.org/en-US/Fedora/19/html/Installation_Guide/ch18s02.html

That said, it's pretty hard to find.  Additionally, there are also these pages:

https://fedoraproject.org/wiki/FedUp

This next one is probably also useful, but incredibly more cryptic for a "normal" user:

https://fedoraproject.org/wiki/GRUB_2



So, despite having to use the command-line for FedUp (Anaconda doesn't work any more), FedUp itself ran pretty smoothly for me.  You'll note that the instructions tell you to update/reinstall grub.



After running the provided grub2-install command, I received the following warnings and errors:



/usr/sbin/grub2-bios-setup: warning: File system `ext2' doesn't support embedding.
/usr/sbin/grub2-bios-setup:
warning: Embedding is not possible.  GRUB can only be installed in this
setup by using blocklists.  However, blocklists are UNRELIABLE and
their use is discouraged..
/usr/sbin/grub2-bios-setup: error: will not proceed with blocklists






That sounds pretty alarming, but hey, if it didn't proceed, and then what could go wrong?  Reboot, and ...



error: symbol 'grub_term_highlight_color' not found.

grub_rescue>



Well, that's horrifying.



The best explanation of how to fix this (at least using a live USB key, if you have one handy, preferably from a recent Fedora (e.g. F19 itself :D)) that I found is this Ubuntu article:

https://help.ubuntu.com/community/Grub2/Installing#via_ChRoot

Particularly the section "via ChRoot".



Basically,


  • get to a command-line

  • mount your system's root partition somewhere (not /tmp)

  • mount special directories (see article)

  • mount your boot partition to /boot (if it's separate)

  • chroot into your system's root partition

  • run "grub2-install --recheck /dev/sda" (or wherever)

  • etc.


That fixed it for me.



Boot loader errors are terrifying for "regular" users, and it's sad that Fedora 19's instructions can lead to it.  Sigh.

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