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_at_cmu.edu]
> Sent: Tuesday, September 26, 2000 2:37 PM
> To: ipaq_at_handhelds.org
> Cc: Rajesh Krishna Balan; codalist_at_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_at_cmu.edu>      
> http://ash.rem.cmu.edu/ ]
> ["Don't you see?! We're actors--we're the opposite of 
> people!" -Stoppard]
> 
> 
> _______________________________________________
> iPAQ mailing list
> iPAQ_at_handhelds.org
> http://handhelds.org/mailman/listinfo/ipaq
>