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Giovanni Mascellani: DQIB, the Debian Quick Image Baker

Submitted by Roy Schestowitz on Sunday 9th of June 2019 09:08:35 PM Filed under
Debian

Debian supports (either officially or unofficially) a lot of architectures, which is of course a nice thing. Sometimes you want to play with some exotic architecture you are not familiar with, or you want to debug a problem with that architecture, but you do not have a computer implementing that architecture. Fortunately QEMU is able to emulate most of the architectures supported by Debian (ia64 being an exception), however it can be difficult to install it or to find ready-to-use images on the Internet (there are some, but usually they are quite a few years old). Let's also say that for some reason you cannot or do not want to use the Debian porterboxes (maybe you are not a DD, or you want to mess up with the network, or you want to be root). What do you do?

Mostly for the fun of hacking on some exotic architectures, I tried to brew together a little script, the Debian Quick Image Baker (DQIB). It is basically a wrapper that calls qemu-debootstrap with the right options (where "right" means "those that I have experimentally found to work"), with some thin icing layer on top. qemu-debootstrap is basically another wrapper on top of debootstrap, which of course does the heavy lifting, and qemu-user-static, that allows debootstrap to run executables for foreign architectures.

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