HI Andy,
Thanks for your response. No I don't need anything fancy while booting up
other than access to certain scripts/hooks which are added in
initramfs-tools directory in case of ubuntu. I'll try to see if this python
code allows me to do something like that. Also, in general, doesn't dracut
have any provision wherein we can specify such add ons? Strange..
Best,
Saurabh
On Tue, Nov 4, 2014 at 5:42 PM, Andrew Lutomirski l...@mit.edu wrote:
On Tue, Nov 4, 2014 at 5:35 PM, Saurabh Kulkarni srk...@gmail.com wrote:
Hi there,
So I've been working on a project that requires me to have my own custom
initrd. The doc I'm following is specialized for ubuntu, so it makes use
of
mkinitramfs to create initrd, and uses initramfs-tools/scripts and
initramfs-tools/hooks for serving its purpose. I tried using dracut to
create a ramdisk, but I cannot figure out how should I incorporate
additional scripts and hooks into the same. I tried extending a dracut
module (00bash) by adding *inst_hook cmdline 20 path to the script *
but
that doesn't seem to help.
How custom? What are you trying to do? Are you trying to boot in an
environment that needs hardware-dependent drivers loaded or is the
environment controlled enough that you don't need all that fanciness.
I'm asking because this thing, while not currently intended for
external use, can generate working initramfses very very quickly and
with so little code that you can see what's going on in a minute or
two:
https://git.kernel.org/cgit/utils/kernel/virtme/virtme.git/tree/virtme/mkinitramfs.py
--Andy
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Saurabh R Kulkarni
Graduate Student, ECE
Carnegie Mellon University
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