From: Michael Prokop <mika@grml.org>
Date: Fri, 25 May 2012 11:17:14 +0000 (+0200)
Subject: extract ISO feature: make sure *.squashfs files exist + support older ISOs too
X-Git-Tag: v0.19.2~1
X-Git-Url: http://git.grml.org/?a=commitdiff_plain;h=a7f99c464099634bbb5472b5889430f84f1fe9f5;hp=a7f99c464099634bbb5472b5889430f84f1fe9f5;p=grml-live.git

extract ISO feature: make sure *.squashfs files exist + support older ISOs too

ISOs before release 2011.12 used /live/ for storing squashfs files,
releases starting with 2011.12 use /live/*/ (where "*" corresponds
to the release name). Test whether such files exist before accessing
them and while adding the check also add support for releases older
than 2011.12.

Thanks: Charles A. Hewson <cahewson@eskimo.com> for the bugreport
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