After the Great Computer Meltdown of 2014, we forgot about poor c0rga, which is why the RGA hasn't been recording scans for the past several months (as Steve noted in elog 10548).
Q helped me remember how to fix it. We added 3 lines to its /etc/fstab file, so that it knows to mount from Chiara and not Linux1. We changed the resolv.conf file, and Q made some simlinks.
Steve and I ran ..../scripts/RGA/RGAset.py on c0rga to setup the RGA's settings after the power outage, and we're checking to make sure that the RGA will run right now, then we'll set it back to the usual daily 4am run via cron.
EDIT, JCD: Ran ..../scripts/RGA/RGAlogger.py, saw that it works and logs data again. Also, c0rga had a slightly off time, so I ran sudo ntpdate -b -s -u pool.ntp.org, and that fixed it.
sudo ntpdate -b -s -u pool.ntp.org
In all of the fstabs, we're using chiara's IP instead of name, so that if the nameserver part isn't working, we can still get the NFS mounts.
On control room computers, we mount the NFS through /etc/fstab having lines like:
192.168.113.104:/home/cds /cvs/cds nfs rw,bg 0 0
fb:/frames /frames nfs ro,bg 0 0
Then, things like /cvs/cds/foo are locally symlinked to /opt/foo
For the diskless machines, we edited the files in /diskless/root. On FB, /diskless/root/etc/fstab becomes
master:/diskless/root / nfs sync,hard,intr,rw,nolock,rsize=8192,wsize=8192 0 0
master:/usr /usr nfs sync,hard,intr,ro,nolock,rsize=8192,wsize=8192 0 0
master:/home /home nfs sync,hard,intr,rw,nolock,rsize=8192,wsize=8192 0 0
none /proc proc defaults 0 0
none /var/log tmpfs size=100m,rw 0 0
none /var/lib/init.d tmpfs size=100m,rw 0 0
none /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620 0 0
none /sys sysfs defaults 0 0
master:/opt /opt nfs async,hard,intr,rw,nolock 0 0
192.168.113.104:/home/cds/rtcds /opt/rtcds nfs nolock 0 0
192.168.113.104:/home/cds/rtapps /opt/rtapps nfs nolock 0 0
("master" is defined in /diskless/root/etc/hosts to be 192.168.113.202, which is fb's IP)
and /diskless/root/etc/resolv.conf becomes:
nameserver 192.168.113.104 #Chiara