RE: [iPAQ] coda on Compaq iPAQ

Very Well Done, Chris.

I hope to test it tomorrow.

Are you going to place this information in a html file on the projects page
(hint)???

Best Regards,

--George

> -----Original Message-----
> From: Christopher J Mason [mailto:cmason@cmu.edu]
> Sent: Tuesday, September 26, 2000 2:37 PM
> To: ipaq@handhelds.org
> Cc: Rajesh Krishna Balan; codalist@TELEMANN.coda.cs.cmu.edu
> Subject: [iPAQ] coda on Compaq iPAQ
>
>
> Howdy.
>
> I believe I've managed to get coda to work on the iPAQ. coda
> is a network
> filesystem being developed at CMU. What makes coda interesting for
> handheld computers is that it supports disconnected
> operations, meaning
> that you don't have to always have a network connection for
> files to be
> accessible (in contrast to, say, samba or nfs). It does this
> by caching
> whole files on the local machine and maintaining a log of
> changes to those
> files. It has support for re-integrating those changes once
> file servers
> are available again. It supports the notion of "hoarding"
> where by you can
> lock files into the cache based on priorities.
>
> I'm not directly involved in coda project; I'm just a fan, if
> you will. If
> there are errors in the setup, blame me, not the coda people.
> I'm by no
> means a coda guru.
>
> coda is quite powerful; it is also somewhat daunting from a user's
> prospective. In particular, running a coda server may be
> quite challenging
> (I don't know; I haven't done it yet; I'll fill in more
> details when I get
> there). Caveat emptor.
>
> Coda is also quite large. Compressed it takes up about 1.3 mB. I've
> managed to fit into the normal flash partitions, but there's
> not room for
> much else.
>
> I've compiled coda for the iPAQ and tested it minimally. Below I've
> included some instructions on how to install coda on your
> ipaq. There are
> basically two options currently:
>
> 1) use the cramfs images I've created from v0.16-beta by
> flashing your iPAQ
> with them.
>
> Download the following images
>
> ftp://ftp.handhelds.org/pub/linux/coda/init-2-42.coda.cramfs
> ftp://ftp.handhelds.org/pub/linux/coda/root-2-42.coda.cramfs
> ftp://ftp.handhelds.org/pub/linux/coda/usr-2-42.coda.cramfs
> (You'll find md5sum files there as well.)
>
> You'll also need the v0.16-beta kernel from
> ftp://ftp.handhelds.org/pub/linux/compaq/ipaq/v0.16/zImage-2.4
> .0-test8-rmk2
> -np2
>
> Flash your ipaq as according to the instructions,
> substituting the above
> files for those refered to in the installation documentation.
> Next, skip
> down to the setup instructions below...
>
> 2) create your own cramfs images, adding to them the coda
> executables and
> the kernel module. I've created a script which should help
> with this.
> Probably running this script directly isn't a good idea; but
> reading it
> should give you a good idea about what needs to be changed.
>
> The script is
>
> ftp://ftp.handhelds.org/pub/linux/coda/coda.install
>
> You can get the coda executables at
>
> ftp://ftp.handhelds.org/pub/linux/coda/coda.arm.tar.gz
>
> and the kernel module is:
>
> ftp://ftp.handhelds.org/pub/linux/coda/coda.o
>
> Put this stuff and the script into the same directory, and
> run the script.
> You should get out the cramfs images above (well, except for
> some extra
> stuff that I added ;-).
>
>
>
> Setup:
>
> Once you have this stuff installed, and your ipaq booted,
> you'll need to
> establish IP connectivity to your iPAQ. You'll need "real"
> connectivity;
> NAT won't cut it at the moment. Coda will require specific
> support from
> NAT servers; I'm investigating this further and will post when I get
> somewhere.
>
> You must then run venus, the coda cache manager:
>
> ldconfig
> export PATH=${PATH}:/usr/local/bin
> venus -rvmt 3 &
>
> The -rvmt option causes venus to store it's log in malloced
> memory rather
> than RVM (don't worry about it); RVM doesn't seem to like ramfs file
> systems. Either way, if you reboot your ipaq while
> disconnected, you'll
> loose your modifications. Be careful. At some future date
> it would be
> nice to have coda write it's modification log to flash; this
> doesn't happen
> yet.
>
> You should then be able to:
>
> cfs checkservers
> cd /coda
> ls
>
> If this works, you'll need to setup a coda server, and change the
> configuration file in /usr/coda/etc/coda/venus.conf to point
> to that server.
> (To make this change permanent you'll have to use option 2
> above, change
> the server name in init/coda/etc/coda/venus.conf and then
> mkcramfs and
> flash the init partition.)
>
> For more help on installing and using coda, see:
>
> http://www.coda.cs.cmu.edu/
>
> If you have problems, please let me know.
>
> Have fun,
>
> -c
>
> [Christopher Mason <cmason@cmu.edu>
> http://ash.rem.cmu.edu/ ]
> ["Don't you see?! We're actors--we're the opposite of
> people!" -Stoppard]
>
>
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Received on Tue Sep 26 12:14:14 2000