[mythtv-users] problems with diskless setup

Rich West Rich.West at wesmo.com
Mon Feb 12 21:36:57 UTC 2007


Richard Scott wrote:
>> A few hours of work, and I'm making some progress, but I've reached a
>> point that where I'm a bit lost.  I'm setting up a diskless boot
>> environment for fc6 based on the system-config-netboot-0.1.34-1_FC3.  It
>> seems to be working in a sane mannor -- the logic of the disklessrc file
>> is to mount the readonly root fs then mount rw the snapshot fs. It then
>> does a mount -bind to map the files off the snapshot fs over the ro
>> files from the main mount.  However, after the mount -bind operation,
>> these files are still Read-only.  I tried going through the same steps
>> locally, and it works as expected - I can't write to the files that are
>> ro, but after a mount -bind I can.  This doesn't seem to be he case with
>> the diskless installation.  Any thoughts?  Any way to get a shell from
>> that disklessrc file so i can poke around?
> I've had this problem as well - fc5 also fails with kernels 2.6.18 and
> above. I seem to remember reading somewhere that the kernel option
> CONFIG_NFS_FSCACHE is responsible - I keep meaning to try recompiling my
> fc5 kernel without this option to see if it works, but haven't got round
> to it yet.

I hate to be one of those "I'm having this problem, too" people, but I 
am experiencing the same problem. :(

I was finally able to get the system to nfsboot (hooray), but I have a 
bunch of errors when things try to start up complaining that I'm finding 
that the filesystem remains read-only and, hence, won't start up X.. or 
much of anything, for that matter.  On the other hand, the system is 
nice and quiet. ;)

I tried "mount -o remount,rw /", and, shortly afterward, my main server, 
everything freaked out causing it to hang.  Not sure if it was related, 
but that made my heart skip a few beats..

Of course, I am stuck in the middle where I had used 2.6.20 as the base 
kernel to rebuild, but, of course, nvidia and lirc related RPMs are not 
easily available for this kernel under FC5.  I think I will just 
download 2.6.18 and work with that..

-Rich



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