root fs on hdd

[Mark S. Mathews]

Our process is to:

1) cpio the /opt/hardhat/.../target tree (including the .../target/opt/...
subtree) to a temporary location
2) install our specific executables and scripts into the temporary
location  (from here we can test/debug our stuff via nfsroot)
3) cpio the pieces we want from the temporary location to a pre-image
staging area
4) strip everything in the staging area that's not stripped (except
modules)
5) test the staging area for size (we're currently using a max size of
6MB)
6) losetup, create, and mount a loopback fs
7) cpio from the staging area to the loopback
8) umount and un-losetup the loopback
9) gzip the loopback file
10) cp the loopback file to linux/arch/ppc/mbxboot/ramdisk.image.gz
11) do a make zImage.initrd
12) zsrec the resulting zImage
13) load into ram on the board
14) copy from ram to flash
15) reset the board and watch the fun begin  ;-)

Works great.  One tricky part is that some of this must be done as root.
I use sudo to make it a little easier.  Note step 1, we treat the
/opt/hardhat/.../target tree as a 'pristine', working root fs.  We always
copy the contents to somewhere else before making changes.

I may be restating the obvious, but someone might find it useful.

-Mark


On Fri, 26 May 2000, Dan Malek wrote:

>
> Jim Lewis wrote:
> >
> > You need to make the following soft link in your target :
> > opt/hardhat/devkit/ppc/8xx/powerpc-linux ----> /
>
>
> Oooo.  That's even better (I guess I have been making it too difficult :-).
>
>
> 	-- Dan
>
>


Mark S. Mathews

AbsoluteValue Systems      Web:    http://www.absoval.com
P.O. Box 941149            e-mail: mark at absoval.com
Maitland, FL 32794-1149    Phone:  407.644.8582
USA                        Fax:    407.539.1294


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