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RE: [iPAQ] Restore CE (or bootldr) from Redboot?
- From: Ted Serreyn <ted at serreyn dot com>
- To: "Noel J. Bergman" <noel at devtech dot com>
- Cc: "Hicks, Jamey" <Jamey dot Hicks at compaq dot com>, ipaq at handhelds dot org, eCos Discussion <ecos-discuss at sources dot redhat dot com>, Ted Serreyn <ted at serreyn dot com>
- Date: Wed, 06 Feb 2002 14:41:26 -0600 (CST)
- Subject: [ECOS] RE: [iPAQ] Restore CE (or bootldr) from Redboot?
- References: <NBBBJGEAGJAKLIDBKJOPMEHCLAAA.email@example.com>
Quoting "Noel J. Bergman" <firstname.lastname@example.org>:
Exactly, Easy way to switch oses. As long asyou have backed up your data
properly with wince, you should just be able to do a restore, reset and you are
back running wince.
I envision this is something that I could run linux all weekend and work/play
with it, then return Monday morning with a wince handheld again.
> I believe that Ted meant "switch" as in re-load, not as in run from
> In any event, what would happen if the bootloader worked with CF (as the
> loader does), and provided options to blit both Flash and DRAM to/from
> So if I held the action key upon warm reset, it'd be offered the option
> save or restore a compressed image? At least in theory, wouldn't that
> provide the ability to save my current WinCE image, and load in my
> linux image; and later to restore my WinCE image including data with
> binary fidelity?
> --- Noel
> -----Original Message-----
> From: email@example.com [mailto:firstname.lastname@example.org]On
> Behalf Of Hicks, Jamey
> Sent: Wednesday, February 06, 2002 8:07
> To: Ted Serreyn
> Cc: email@example.com; eCos Discussion
> Subject: RE: [iPAQ] Restore CE (or bootldr) from Redboot?
> > Ok, how about this, Given that you [have] redboot installed, is there
> > mechanism to just put linux on a flash card and wince on a flash
> > then switch as needed?
> That might be the ideal dual boot scenario, but the PocketPC images
> the iPAQ will not run from a flash card -- you have to install them in
> The dual boot configuration that I think is feasible is to be able to
> boot either WinCE, installed in Flash, or another operating system
> as Linux from external media such as CF, SD, etc.
> One difficulty in doing this is being able to implement
> The firmware has to be able to decide whether it is resuming WinCE or
> Linux before it turns DRAM back on. (If it is resuming WinCE, the
> firmware does not turn on DRAM -- WinCE does). We need a SA1100
> register that we know is used differently by PocketPC and Linux that
> firmware can examine.