did you try "venus -init &"

----- Original Message ----- 
From: "Christopher J Mason" <cmason_at_cmu.edu>
To: <codalist_at_TELEMANN.coda.cs.cmu.edu>
Sent: Monday, September 18, 2000 9:47 PM
Subject: venus startup fails; ramfs and coda


> Howdy.
> 
> So call me crazy but I'm trying to get coda to work as a client on a 
> diskless machine (it happens to be an ARM based handheld called the iPAQ). 
> I've got everything compiled and installed, and libraries seem to be setup 
> in the right places.  I've run venus-setup and it creates and edits some 
> files (actually that's a lie, I've edited most of them by hand to have the 
> right stuff in them because they're read only, see below).
> 
> However, when I run venus for the first time I get the following output 
> (also copied to the console file in /usr/coda):
> 
> (none):/usr/coda# venus&
> [1] 287
> (none):/usr/coda# Coda Venus, version 5.3.8
> 
> Date: Mon 09/18/2000
> 
> 22:53:45 /usr/coda/LOG size is 165699 bytes
> rvm_create_log failed
> 22:53:45 Recov_InitRVM: RVM_INIT failed (RVM_EIO)
> [1]+  Exit 255                venus
> 
> Now if I do:
> 
> (none):/usr/coda# ls -l LOG
> -rw-------   1 root     root       166912 Sep 18 22:53 LOG
> 
> If I cat the file, it's some header stuff:
> 
> :-C\RVM Interface Version 1.3  7 Mar 1994RVM Log Version  1.4 Oct 17, 1997 
> RVM :
> 
> Followed by some binary garbage and then a bunch of blank space which I 
> assume are nulls.
> 
> The only other data point I can offer is this, which I find kind of odd:
> 
> (none):/usr/coda# du -s LOG
> 0       LOG
> 
> This is all happening on linux kernel 2.4.0-test8-rmk2-np1.
> 
> Basically my layout is the following:
> 
> / is a read-only file system (cramfs if you must know)
> /coda is just a directory in a read only file system
> /usr is also a read only file system.
> /usr/coda -> /mnt/ramfs/coda which is a ramfs file system
> 
> /etc also happens to live in ramfs.
> 
> /dev also happens to live in ramfs and
> /dev/cfs0 exists.
> 
> (none):/dev# ls -l cfs0
> crwxrwxrwx   1 root     root      67,   0 Dec 31  1969 cfs0
> (none):/dev# lsmod
> Module                  Size  Used by
> coda                   52352   0  (autoclean)
> ...
> 
> I know it's probably some kind of bug having to do with ramfs but I'm not 
> sure what and I don't really even know where to start.  I'd really like to 
> get this to work, but it seems like I'm going to need your help.  I've 
> looked through the source for the functions:
> log_t *make_log(log_dev_name,retval)
> rvm_return_t rvm_create_log(rvm_options,log_len,mode)
> static void Recov_InitRVM()
> 
> and haven't seen anything that obviously looks like it should fail.
> 
> I've tried inserting printfs into rvm_create_log() at each of the places 
> where RVM_EIO is returned, but I'm not having any luck.
> 
> 
> Also, and probably unrelatedly, I notice in your example configuration file 
> you say the minimum cache size is 2048.  This isn't true.  Coda complains 
> about the size of the log being too small if you actually try to run venus 
> with the log size set to 2048.  I'm using 5120 and it doesn't complain (at 
> least about that).
> 
> I'd appreciate any help you could give.  I think coda would be perfect for 
> this kind of device, and I'm willing to try to debug this.
> 
> -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]
> 
>