Arch Linux

mikeroll

Member

Registered: 2013-06-08

Posts: 6

[SOLVED] Boot archiso to RAM

Hello everyone.

I have a multiboot USB stick with grub2 on it. Arch iso boots fine using the menuentry from GRUB2 wiki. However, I'd like to copy the live image to ram so I can remove the USB drive later. Is there a kernel parameter for this (like 'toram' on ubuntu based livecds)?

Thanks!

Last edited by mikeroll (2013-07-12 10:20:21)

KairiTech

Member

From: Toronto, Canada

Registered: 2011-06-04

Posts: 275

Re: [SOLVED] Boot archiso to RAM

The 'copytoram' kernel parameter copies the squash image to RAM but unfortunately the contents only seem to get uncompressed on demand so it's a lot slower than reading them from the USB.

I have 8GB that almost never gets used past 750MB but I would be more interested in having the uncompressed image copied to RAM.

vacant

Member

From: downstairs

Registered: 2004-11-05

Posts: 816

Re: [SOLVED] Boot archiso to RAM

My rescue USB stick uses syslinux. One of the options is to copy the Arch Install iso to ram using syslinux "memdisk".

I don't know if grub2 can chainload to syslinux but I believe syslinux can chainload to grub. That way you could  still keep grub if it's doing stuff syslinux can't (otherwise swap to syslinux)

Last edited by vacant (2013-06-28 14:02:13)

hokasch

Member

Registered: 2007-09-23

Posts: 1,461

Re: [SOLVED] Boot archiso to RAM

Have a look at Archboot isos.

mikeroll

Member

Registered: 2013-06-08

Posts: 6

Re: [SOLVED] Boot archiso to RAM

Thanks everyone, copytoram is probably fine for me for now.