Date: Mon, 9 Jun 2008 17:34:09 +0200 From: Luigi Rizzo <rizzo@iet.unipi.it> To: Ivan Voras <ivoras@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: any simple tool to extract files from an UFS image ? Message-ID: <20080609153409.GB98621@onelab2.iet.unipi.it> In-Reply-To: <g2jeii$3ht$1@ger.gmane.org> References: <20080609141441.GA5025@onelab2.iet.unipi.it> <g2jeii$3ht$1@ger.gmane.org>
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On Mon, Jun 09, 2008 at 04:26:26PM +0200, Ivan Voras wrote: > Luigi Rizzo wrote: > > Hi, > > I am doing some work recently on small FreeBSD images (picobsd and friends), > > and I need to run on a linux machine some script to customize > > both the UFS and the ISO image. > > > > Because the customization is just writing some text into a file, > > my approach is to put in the UFS image a file with a recognizable > > start and end markers, and then dd into the image the stuff I need. > > > > I was wondering if i could avoid shipping both images, and instead > > use some trick to extract the tree from the UFS image and then > > use mkisofs on the linux side to build the ISO. > > > > I know that bsdtar can read ISO images, but I don't think it does > > the same on UFS. > > If I understand you correctly, you may try mounting the images in Linux, > with suitably compiled kernel. yes but that requires root privileges. I try to avoid that even in FreeBSD (ni the picobsd script) by using 'makefs'. cheers luigi
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