gentoo-cloud-prep

Some scripts to help with the following:

Get the latest stage3 and portage snapshot from a mirror
Catalyst that shit up into a stage4 for your own voodoo
Prepare a physical disk based on that stage4, throw grub on it, generate a qcow2 image

First we need some packages.

# emerge catalyst qemu parted app-crypt/gkeys grub:2

Now we can run catalyst and qemu-img. If you only need the stage4, you can omit qemu.

Run the scripts in order, and you'll have a shiny new set of files, depending on what you wanted.

set the profile you want, valid ones are as follows

export PROFILE="default/linux/amd64/13.0"

Of note to hardened users is that this uses catalyst, which uses chroots, so you need to allow grsec things for chroots

01-get-stage3.sh will get the latest stage3 for you, from whatever mirror is supplied in the script. You can use the default, but it's throttled for traffic outside my IP range.
02-catalyst-that-shit.sh will take the stage3 generated a moment ago, and spit out a stage4 for you. You will have to change variables here, I haven't included any overlays. Stop here if you only want a stage4.
03-prep-that-image.sh will take that stage4 that you just generated, and first wipe the target disk (entirely), make a partition table, mkfs.ext4 it, splat the stage4 on it, and newest portage. It will then unmount it, and throw grub on it. After that, it will dd the disk into a raw image, and then qemu-img convert that raw image into a qcow2 format, then remove the raw image.

Just kidding, do whatever you want. Unless that involves blaming me. Don't blame me.

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