Re: [Xen-users] Small distro for DomU?

[Marcus Brown <marcusbrutus@xxxxxxxxxxxxxxxx>]

Hi all,

I've been playing with this issue a bit lately.
I started with debian sarge, and using cdebootstrap a typical 'standard'
install tends to be about 175MB ... far too big and memory hungry for
my requirements. No way can I get that down to the <25MB range! :)
Now I've got uclibc's buildroot working, and have just managed a
boot of a minimal rootfs.
Here are some of the more interesting stats for those interested:

# cat /proc/meminfo
MemTotal:         5868 kB
MemFree:          2904 kB

# df
Filesystem                Size      Used Available Use% Mounted on
/dev/hda3                 7.7M      4.7M      2.6M  65% /
tmpfs                     2.9M     12.0k      2.9M   0% /tmp

# uname -a
Linux uclibc 2.6.11.12-xenU #1 Tue Aug 9 12:07:52 EST 2005 i686 unknown

Time to add functionality to the new toy ;)

Marcus.

John Fairbairn wrote:
> ttylinux(which is busybox based) makes a great base distro for these
> purposes, then compile anything you need statically and switch out your
> glibc etc. use ldd to find out what needs changing. It's a pretty simple
> affair really. If you need help just send another msg and I'd be happy to
> share the basics of my particular method.
> 
> HTH.
> 
> John Fairbairn
> 
> 
>>Mark Williamson wrote:
>>
>>
>>>>Using Buildroot for uClibc to build a tiny SSH- and VNC-capable DomU
>>>>distro
>>>>is a fantastic idea.
>>>>
>>>>
>>>
>>>It'd be nice to have a standard base filesystem with these components
>>>(that's
>>>a hint to anyone with time on their hands!).
>>>
>>>
>>
>>Made for a slightly different purpose, but useful as a starting point.
>>The following script builds (from scratch) a busybox-based domU with
>>qemu (VNC enabled, no SDL).
>>
>>You can get pretty far (it turns out) with just building things
>>statically against glibc.
>>
>>http://www.cs.utexas.edu/users/aliguori/build.sh
>>
>>Regards,
>>
>>Anthony Liguori
>>
>>
>>>Cheers,
>>>Mark
>

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