RE: [iPAQ] v0.15 : Flash & ppp

See attached...From George at some point.

BTW: What FAQ/HOWTOs are needed most right now...I've finally got a grip on my schedule a little and plan to start writing some stuff tonight....

> -----Original Message-----
> From: Jamey Hicks [mailto:jamey@crl.dec.com]
> Sent: Thursday, September 14, 2000 11:48 AM
> To: 'Jan Koop'; ipaq@handhelds.org
> Subject: RE: [iPAQ] v0.15 : Flash & ppp
>
>
> > I find 18834 1k-blocks of "disk" space with 13 blocks
> allocated on my
> > /dev/flash6 when mounted. I thought all Ipaqs have 16 MB
> Flash memory,
> > but I hear there are some 32MB models out there. My question
> > is if there
> > is any way to determine how much flash memory a particular Ipaq has,
> > since I´m afraid of corrupting my bootloader when writing to flash.
>
> The bootldr detects and reports the type and size of flash
> when it boots.
> The kernel flash driver also detects the and reports size of
> flash, so it
> will not wrap around if you try to write past the end of the
> actual flash
> chips. Hmm. The flash driver is actually reporting for one
> chip, but the
> actual size is double that.
>
> >
> > Regarding ppp: while all other modules needed to run the xdemo and
> > sound, etc. are loaded correctly (not like my 0.14 install, I had to
> > load them manually) the ppp-modules still need to be inserted
> > by hand to get a ppp-connection up.
> >
> > Is there a way of modifying the cramfs images?
>
> The cramfs filesystem is read only, so you cannot modify it
> while it is
> mounted.
>
> The source trees for the cramfs images are available in the
> v0.15 directory.
> To modify, unpack the appropriate source tree, modify it, and then use
> mkcramfs to create a new cramfs image. You can do this from any Linux
> machine running 2.2 or 2.4. You do not need cramfs
> filesystem support to
> create a cramfs image. You need a 2.4 linux kernel with the
> cramfs module
> loaded to mount a cramfs filesystem, however.
>
> The source for the mkcramfs utility is in the kernel, under
> scripts/cramfs/.
> Just 'make mkcramfs' in that directory.
>
> We'll put a mkcramfs executables up in the next release.
>
> -Jamey
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