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how to install grub2 in uefi/gpt system
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PatomaS
Tux's lil' helper
Tux's lil' helper


Joined: 09 Feb 2006
Posts: 92

PostPosted: Mon Jan 30, 2012 8:47 am    Post subject: how to install grub2 in uefi/gpt system Reply with quote

Hi people

I'm installing gentoo on a new computer, the disk is already partitioned with gpt and all the partitions are in position and with the right file systems.

The installation is mostly smooth until i hit the "installing grub" part. Following the wiki (old and new) or the semiofficial guide, I always run into problems, well, basically one and is the lack of efivars.

So my question is: How can I install grub2?

Some related questions would be:

  1. Is there a live cd/dvd that I can download that boots in a uefi mode?
  2. Am I missing something from the guides? I know this question is kind of rethoric ...
  3. If there's no easy way to install grub2, is the grub in portage patched to boot a gpt/uefi system/disk?


I also tried with the archboo cd, but it stoped with a panic, so I couldn't really use it.

I have tried with the systemrescuecd, wich I have used in before, just not this setting and the live dvd 12.

Thanks

Bye
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DONAHUE
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Joined: 09 Dec 2006
Posts: 4341
Location: Goose Creek SC

PostPosted: Mon Jan 30, 2012 5:05 pm    Post subject: Reply with quote

stupid question time: is CONFIG_EFI_VARS=m or CONFIG_EFI_VARS=y in your kernel?
http://en.gentoo-wiki.com/wiki/UEFI and
https://wiki.archlinux.org/index.php/Unified_Extensible_Firmware_Interface#UEFI_Support_in_Linux_Kernel may be helpful
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PatomaS
Tux's lil' helper
Tux's lil' helper


Joined: 09 Feb 2006
Posts: 92

PostPosted: Tue Jan 31, 2012 12:46 pm    Post subject: Reply with quote

Hi

Well, the kernel I was configuring originally had everything inside. But I also tried with modules.

What amazes me, is that the three pages are different, just a few commands are the same and even then some times have different arguments.

Right now I'm about to delete all partitions, and start again ... well, first I'll try again with the scarabeus guide. But last time I tried that one, I ended with a system that had only a cursor in the top left corner.

Sorry for the rambling, but a lot of times I feel like everything needs a ridiculous amount of trial and error and time invested. And sometimes, just want things to work a bit easier ...

Well, after this wordy complain, It's time to continue with grubs.

And thanks again for all the help :)

Bye
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PatomaS
Tux's lil' helper
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Joined: 09 Feb 2006
Posts: 92

PostPosted: Wed Feb 01, 2012 1:35 pm    Post subject: Reply with quote

Hi people

Well, after restarting the process with new partitions, I followed the scarabeus guide and nothing else. Everything seems to be fine, no error messages that I can see.

Everything is included in the kernel; not as a module.

But, when I reboot, The only thing I get is a cursor in the almost top left corner.

After that, I rebooted again with the sysrescuecd to check if there was any kind of log, but as expected, there is nothing since there is no system available.

Any ideas?

I think I've seen a message in the forum that mentions that, but so far I can't find it; I'll keep looking for it, but any help will be most appreciated.

Bye
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