[SOLVED]: efistub and luks

haVok · n00b Joined: 21 May 2013 Posts: 49

I will be doing a uefi install, but wanted to make sure I have all the info I need before I start. As before with a luks encrypted root i.e. with grub the kernel parameters had cryptdevice=/dev/sdaX:volgroup. Now with just using efistub and without grub, the wiki on efistub under (configuration enable built in kernel parameters), is that where I would like my cryptdevice=/dev/sdaX:volgroup? and and other parameters?

BradN · Posted: Thu May 23, 2013 1:25 am Post subject:

I think that sounds reasonable - another place it can be done is inside the kernel config itself.

srs5694 · Posted: Thu May 30, 2013 1:46 pm Post subject:

I've never used LUKS, but in theory, there are at least three options, depending on how you launch the kernel:

Built into the kernel itself, as you suggest.
If you launch the kernel from the firmware's built-in boot manager, you can add options to the NVRAM-resident set of options by using efibootmgr in Linux, bcfg in an EFI shell, or a similar tool.
If you launch the kernel from a boot manager like rEFInd or gummiboot, you can pass the options using whatever mechanism the boot manager provides (typically in a configuration file, similar to what LILO or GRUB uses).

BradN · Posted: Thu May 30, 2013 7:16 pm Post subject:

Doh, I gotta read slower, I suggested the same thing he did, I thought he was talking about setting it up in the EFI from some of the other words around it...