[afnog] BandWidth Manager

Mamoudou Keita mkeita at unicef.org
Wed Sep 28 23:08:25 EAT 2005





Tks. It's clear.

M.

Brian Candler <B.Candler at pobox.com> wrote on 09/28/2005 04:58:19 PM:

> On Wed, Sep 28, 2005 at 03:47:30PM +0000, Mamoudou Keita wrote:
> > > Remember you can boot a modern ordinary PC from a USB pen drive;
> >
> >
> > Can you tell more about ?
> >
> > Thanks
> >
> > Mamoudou.
>
> Well, a USB pen is just a block storage device, and a modern PC BIOS will
be
> able to boot from it (just like booting from a USB-attached CD drive). So
> you can actually install FreeBSD or whatever onto the pen, and then boot
> from it later. If you don't want to go to the trouble of trimming down
the
> installation then you'll want at least a 512MB pen, but they're pretty
cheap
> these days (as an example, GBP20 for 512MB on www.dabs.com)
>
> At bootup you'll probably want to mount /tmp and maybe /var from a
ramdisk,
> since writing to the pen drive is slow. In FreeBSD 5 there are scripts
> /etc/rc.d/tmp and /etc/rc.d/var which do this for you; they are intended
for
> diskless workstations, i.e. those which boot from an NFS root filesystem,
> but they should work nicely here too. Look in /etc/defaults/rc.conf for
> settings around tmpmfs and varmfs, and copy the ones of interest to
> /etc/rc.conf
>
> If you're happy to trim the distribution, then you can get it into a much
> smaller space. There's a distribution called 'nanobsd' in the FreeBSD
tree,
> although I've not played with it.
>
> Also, I wrote a utility called 'tarsplit' which can split a FreeBSD
binary
> distribution into smaller chunks, so that for example you can have a
system
> without compilers and text processing tools. See
> http://psg.com/~brian/software/tarsplit/
>
> You can even get some Linux and FreeBSD distros which fit in 1.4MB, to
run
> directly from a floppy disk... they're OK for routers but don't expect a
> fully-functional workstation :-)
>
> Regards,
>
> Brian.




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