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Message-ID: <20120328132857.GD945@gremlin.ru>
Date: Wed, 28 Mar 2012 17:28:57 +0400
From: gremlin@...mlin.ru
To: owl-users@...ts.openwall.com
Subject: Re: Customizing Owl to fit in a small sized USB Stick or CF
On 28-Mar-2012 08:48:04 +0000, Zenny wrote:
> > > > > Gremlin had patches to add a new make target that would
> > > > > generate flash images instead of ISOs. I think those were
> > > > > primarily intended for installing systems from, and they
> > > > > were for larger flash devices (1 GB being considered the
> > > > > minimum anyone would likely happen to have handy anyway).
> > > > Great info. Do you mean this one:
> > > > ftp://ftp.gremlin.people.openwall.com/pub/linux/Owl/INSTALL/?
> > > Almost. IIRC, Gremlin also produced a patch to our Owl/build/
> > > tree to automatically generate flash images like that.
> > Not yet. There was only /etc/lilo-flash.conf file for booting
> > from a flash device.
> It would be awesome if you could create a wiki page about the way
> that you manage your compilation in flash. ;-) Appreciate that if
> you could manage to post a small documentation, subject to your
> convenience.
I hope I'll find some time for that... For now, here's brief recipe:
0. Run `qemu -hda flash1gb.image -cdrom owl-install.iso -boot d`
1. Intall the system to one single root partition
2. Exit to shell instead of rebooting
3. Copy the /usr/src to /owl/usr/src
4. Create /owl/etc/lilo-flash.conf
5. Run `chroot /owl lilo -C /etc/lilo-flash.conf -b /dev/hda`
6. Shut down the Qemu VM
7. Run `dd bs=1M if=flash1gb.image of=/dev/sdX`
8. Try booting physical machine from freshly created flash drive
I remember some issues with /etc/fstab when flash is recognized
with different device name, so one single root partition and
`mount / -o remount,rw` works that around.
> > > Owl already supports encryption for loopback devices, so
> > > you can use an encrypted ext4 filesystem with it currently
> > > (with our pre-built kernels and tools).
> > Yes, `losetup -e twofish -k 256 /dev/loop0 /dev/md0` works
> > just fine.
> Thanks for the hint ;-)
That wasn't the hint - the hint is "don't forget to destroy the key
when feds appear at your door" :-)
--
Alexey V. Vissarionov aka Gremlin from Kremlin
<gremlin ПРИ gremlin ТЧК ru>
GPG key ID: 0xEF3B1FA8, keyserver: hkp://subkeys.pgp.net
GPG key fingerprint: 8832 FE9F A791 F796 8AC9 6E4E 909D AC45 EF3B 1FA8
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