Replace GRUB2 with Gummiboot

ailjazi · 2014-09-17 13:34:02

I've istalled GRUB2 during installation. How can I replace it with Gummiboot and enable UEFI from the BIOS without killing my booting?

Xabre · 2014-09-17 13:46:21

Depends on many factors, first one being partitioning. GPT or MBR? Have room for EFI partition? In general, what you need to do is to make sure that your disk is in GPT mode, create EFI partition, transfer contents of /boot to it, mount EFI partition at /boot, install gummiboot, switch to EFI mode in BIOS, boot.
Start with https://wiki.archlinux.org/index.php/GU … MBR_to_GPT, then go on from there.

EDIT: just to be clear, yes, you can keep your disk in MBR mode, but in that case you may run into issues, as some board really do not like UEFI-MBR boot. Converting disk to GPT scheme is fairly safe these days, and may save you from troubles later.

Last edited by Xabre (2014-09-17 13:52:14)

ailjazi · 2014-09-17 14:00:54

Xabre wrote:

Depends on many factors, first one being partitioning. GPT or MBR? Have room for EFI partition? In general, what you need to do is to make sure that your disk is in GPT mode, create EFI partition, transfer contents of /boot to it, mount EFI partition at /boot, install gummiboot, switch to EFI mode in BIOS, boot.
Start with https://wiki.archlinux.org/index.php/GU … MBR_to_GPT, then go on from there.
EDIT: just to be clear, yes, you can keep your disk in MBR mode, but in that case you may run into issues, as some board really do not like UEFI-MBR boot. Converting disk to GPT scheme is fairly safe these days, and may save you from troubles later.

Thanks a lot!

TheSaint · 2014-09-17 15:01:55

ailjazi wrote:

I've istalled GRUB2 during installation. How can I replace it with Gummiboot and enable UEFI from the BIOS without killing my booting?

You should need a live CD/ISO to boot from. It's hardly difficult to modify partitions while are mounted.
If your board support EFI you may consider to skip bootloaders all together and write the entry in NVRAM of your kernel. See here.
Secondly your partitioning should need a ESP to contain your bootloaders and/or kernel data.

teateawhy · 2014-09-17 15:56:45

Make sure to create a backup of the disk before you start changing the partition layout.

ailjazi · 2014-09-17 15:57:59

Well since I am kinda afraid of it I'll leave it for my next installation of Arch in the future.

Arch Linux

#1 2014-09-17 13:34:02

Replace GRUB2 with Gummiboot

#2 2014-09-17 13:46:21

Re: Replace GRUB2 with Gummiboot

#3 2014-09-17 14:00:54

Re: Replace GRUB2 with Gummiboot

#4 2014-09-17 15:01:55

Re: Replace GRUB2 with Gummiboot

#5 2014-09-17 15:56:45

Re: Replace GRUB2 with Gummiboot

#6 2014-09-17 15:57:59

Re: Replace GRUB2 with Gummiboot

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