Arch Linux

broken pipe

Member

Registered: 2010-12-10

Posts: 243

Thinkpad E520 GPT SSD UEFI, unable to install grub2, efibootmgr

Hi all,
i installed arch on my thinkpad E520 (ssd + gpt) using tpowa's unofficial iso. the laptop supports uefi booting and efivars loads fine.
before installing the boot loader i quit and mounted proc, sys and dev to chroot into the installation.
within the chroot i tried to setup grub_efi and efibootmgr but both failed because they couldn't read /proc and /sys. an option was to modprobe efivars, but without any dirty hack it's impossible to load the module because of the different kernel versions ("host" and "guest" system). i renamed the kernel versions by hand and loaded the module. lsmod also shows the module.

any ideas?

Last edited by broken pipe (2012-03-10 07:46:27)

cfr

Member

From: Cymru

Registered: 2011-11-27

Posts: 7,152

Re: Thinkpad E520 GPT SSD UEFI, unable to install grub2, efibootmgr

modprobe it before you chroot.

Read the wiki page on installing grub2. (But I find it more difficult to follow now than earlier versions.)

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broken pipe

Member

Registered: 2010-12-10

Posts: 243

Re: Thinkpad E520 GPT SSD UEFI, unable to install grub2, efibootmgr

sry, forgot to mention, i modprobed efivars and dm-mod before and after the chroot. before chrooting it works, within the the chroot not.