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On Mon, 23 Jul 2012 11:10:00 +0530, "Raj Mathur (राज माथुर)" 
<r...@linux-delhi.org> said:
> On Monday 23 Jul 2012, Ashish SHUKLA wrote:
>> On Mon, 23 Jul 2012 10:22:43 +0530, "Raj Mathur (राज माथुर)" <raju@linux-
delhi.org> said:
>> > Can you suggest a utility or web page instructions for installing a
>> > pre- built Linux disk image over the network?
>> > 
>> > We have a bare machine with PXE and a server with a Linux disk
>> > image. Need the flow to get this image onto the bare machine's
>> > disk.
>> 
>> I don't know of anything already available with such functionality
>> but it would be cool to build one:
>> 
>> 1. On PXE server side, setup a webserver with images
>> 
>> 2. Compile a kernel (with all drivers for your target hardware) + an
>> initrd with /sbin/init which sets up network, fdisk/mkfs's the
>> filesystem, "wget -O - http://..../image.tar.xz|xzcat |tar xv"
>> everything as per kernel parameters. Or if you're using 'disk
>> images', then "wget -O - ....|xzcat|dd if=/dev/stdin
>> of=/dev/$device".

> You also need to resize partitions to the target sizes after copying the 
> image.

which is why I mentioned 'mkfs+tar' otherwise with dd you need to resize2fs
(or equivalent filesystem resize tool).

>> 3. Create per client pxelinux.cfg configuration (in case client's
>> settings differ from defaults), with something like:
>> 
>> linux /vmlinuz
>> append initrd=/initrd.gz network=eth0;static;172.16.0.3/27
>> img=gentoo-x64 drive=sda
>> 
>> It would be really cool to build something like that yourself :).

> Thanks to both you and Saurabh for the suggestions.

> And now I'm invoking the ILUGD torture clause: if you suggest something 
> in public, you are automagically volunteered to do it!  So when can we 
> expect a first-cut implementation for testing, Ashish? :)

It'll happen, it'll happen in our lifetimes. :)

> In the meantime I found these, which may be useful starting points.  
> SystemImager in particular seems well-suited:

> http://svn.oscar.openclustergroup.org/trac/oscar
> http://wiul.org/
> http://kaboot.ainkaboot.co.uk/
> http://wiki.systemimager.org/

SystemImager looks closer to what you're looking and has more functionality.


- -- 
Ashish SHUKLA

“It is rare that one can see in a little boy the promise of a man, but
one can almost always see in a little girl the threat of a woman.”
("Alexandre Dumas")

Sent from my Emacs
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