[Soekris] Re: Read-Only Linux for 4801

[Jody_Glasser@teledyne.com]

My suggestion would be to use Buildroot to build what you need from source
(I've done this for a 4521).  See http://buildroot.uclibc.org/.

You will then select the version of GCC you want to use, build a toolchain,
and then select and build a kernel and root file system with the packages
you need.  You can pretty easily add your own apps to the build, as well...

Since this is based on uClibc and Busybox, the resultant file system will
be pretty small.  You can then mount the whole root file system as an
"initrd" and run the whole thing out of RAM, which make it pretty
impervious to losing power.  You can use Syslinux (or extlinux) to make it
bootable.  It is also easy to update, as there are only two files to store
on the disk - the kernel and the compressed root file system.  If you
include Dropbear in the system, you can use SCP to update.  If you need
some non-volatile storage, create a separate partition, and make it ext3...
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