[145838] in cryptography@c2.net mail archive
Re: customizing Live CD images
daemon@ATHENA.MIT.EDU (John Denker)
Fri Sep 10 14:23:10 2010
Date: Fri, 10 Sep 2010 11:05:10 -0700
From: John Denker <jsd@av8n.com>
To: John Denker <jsd@av8n.com>
CC: Jerry Leichter <leichter@lrw.com>,
Henrique de Moraes Holschuh <hmh@debian.org>,
Petter Reinholdtsen <pere@hungry.com>,
pkg-sysvinit-devel@lists.alioth.debian.org,
Cryptography <cryptography@metzdowd.com>
In-Reply-To: <4C57AD76.6050601@av8n.com>
On 08/02/2010 10:47 PM, I wrote:
> We have been discussing the importance of a unique random-seed
> file each system. This is important even for systems that boot
> from read-only media such as CD.
>
> To make this somewhat more practical, I have written a script
> to remix a .iso image so as to add one or more last-minute files.
> The leading application (but probably not the only application)
> is adding random-seed files.
I just now put up new-and-improved versions of these
software tools, and a web page summarizing the situation.
See
http://www.av8n.com/computer/htm/fixup-live-cd.htm
Status:
*) Worst-case customization time: about a minute on my laptop.
*) Best case: Less than 1 second.
*) The best case is the typical case, if you are making many disks.
*) The checksums in md5sum.txt are properly recomputed.
*) Better usage messages, better comments.
*) The supporting tools are now more robust and more generally useful:
-- Hacking ISO 9660 images
-- Hacking md5sum lists.
Comments and suggestions are welcome.
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