If I understand your question then you want to treat a disk image stored inside a none-disk (e.g. a Logical Volume or even a regular file) as a physical disk and access the partition inside it.
In that case "kaprtx" is your friend, something like: losetup -f /dev/vgname/lvname kpartx -a -v /dev/loopN now you can access the partitions inside it (e.g. "vgchange -ay internal-vgname", "mount", "resizefs" etc) to reverse: umount/vgchange -an/... losetup -a # to find which loop device you need to deactivate kpartx -d /dev/loopN losetup -d /dev/loopN Did I get it? --Amos On 3 April 2011 03:43, Ira Abramov <lists-linux...@ira.abramov.org> wrote: > Hello friends, last resort before I go and reinvent the wheel, badly. > > I have a system here that creates a dozen images for medias of different > sizes, installing a few dozen machines every day. I would like to make > the process more unified - install the same 4G image on all medias (dd) > and then maximize sda6, the last ext3 partition, and naturally, the > underlying extended partition sda4. > > The only tool that automates resizing like that is parted, and it still > needs a precise partition length instead of "use all available space", > and won't resize ext3 if I don't turn off the journaling first (make it > ext2). I tried deducing the maximum partition size with fdisk -l and > other sfdisk instead, but each uses different units and I have no idea > how to convert them all correctly so I'm left with working, non > overlapping partitions. > > I'm prepared to do it the hard way, I just wondered if there's a tool I > missed or an existing script that already does this. > > Thanks. > > -- > His own worst enemy > Ira Abramov > http://ira.abramov.org/email/ > > _______________________________________________ > Linux-il mailing list > Linux-il@cs.huji.ac.il > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il >
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