Arch Linux

manutenfruits

Member

Registered: 2012-03-29

Posts: 3

(LVM) Boot with LUKS on the entire PV, not LV

Hi!

I just installed Arch with the next config:

/dev/sda1 -> /boot
/dev/sda2 -> encrypted, contains a LVM pv, with a vg called "linux"
/dev/linux/arch -> /
/dev/linux/home -> /home

I have done this before, but with separate encrypted logical volumes, and all I needed to do is modify rc.conf and mkinitpcio.conf, add cryptdevice to the grub2 arguments for the kernel, and good to go.

Now I changed rc.conf USELVM to "yes", I added the hooks ecrypt, lvm2 in that order just before filesystem, and my kernel line in grub lookslike this:

linux /vmlinuz-linux root=/dev/linux/arch cryptdevice=/dev/sda2:lvm ro quiet

How should I configure this? And also, I used luks on the pv, but I don't know if I should be doing that (after all, I was encrypting all LVs with the same password)

Thanks!

mr.MikyMaus

Member

From: disabled

Registered: 2006-03-31

Posts: 285

Re: (LVM) Boot with LUKS on the entire PV, not LV

Hi,

I use pretty much the same configuration. Except that my boot parameter says cryptdevice=/dev/sda2:root. The :root part, as I get it, tells kernel that the root partition is on that physical device and hence it has to be cryptmounted first.

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What happened to Arch's KISS? systemd sure is stupid but I must have missed the simple part ...

... and who is general Failure and why is he reading my harddisk?