making floppy systems

[Ralph Stickley]

Fred,

--- fred anger <anger@rightarm.org> wrote:
> On Fri, 1 Sep 2000, Ralph Stickley wrote:
> > Yes...So far, all my development has been on DOC flash (M-Systems
> Disk-On-Chip
> > which was quickly abanonded for cost reasons) and Compact Flash (PCMCIA
> Adaptor
> > and USB/CF adaptor).  These are all "integrated" hard drives available
> directly
> > to pwlconfig.  
> 
> Those devices still require you to detach them from the "embedded" system,
> and to the machine running pwlconfig though.  That's what I was hoping to
> get around.  I don't think it's possible with PWL.
> 
Hmmmm...I see your point. I my systems, the actual device that is embedded is
physically mounted on my development box then transfered to the embedded
system.

If you exract the file system then compress that to one file. Put that one file
on your boot floppy and then extract it to the embedded hard drive. (you may
have to boot off a floppy that loads the "boot" filesystem into ramdisk - then
insert the new file system from a floppy created by pwlconfig.  
1. build a boot floppy include tar/gzip/cp/lilo/mkfs/..etc.. utilities
2. create a working file system using pwlconfig
3. Boot the embedded target with the boot floppy - run system out of a ramdisk
4. Isert the pwlconfig filesystem and copy the files to the embedded hard disk.

Is there a way to automate this ? If your only interface to the embedded system
is a floppies I don't know what else could be done.

However,

Is there any way you can have the Embedded system boot and access a network ?
Then you could ftp files from your pwl development system. (Or better yet,
mount the embedded system as a disk - NFS or something like that).  
I'm guessing here, but something like this:

Embedded box 
- partition 1 - boot and allow access via network
- partition 2 - system application - erased/replaced as requested remotely
 
> > Hope this help. Also, Adi is approaching the boot/ramdisk file system
> support.
> 
> That would be incredibly useful :)
>
I think this is mostly working but not integrated into pwlconfig.  Maybe next
week will see a flurry of activity on this...let me know if anything else would
be helpful here...

Enjoy the weekend,
Ralph

 
> Thanks for your help.
> 
> -fa
> 
> 
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