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Size: 2440
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Size: 2460
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| Deletions are marked like this. | Additions are marked like this. |
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| }}} | }}} and reboot. |
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| }}} 1. Add TFTP server as default run level {{{ |
}}} or add TFTP server as default run level {{{ |
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| }}} | }}} and reboot. |
Minimum Setup for Gentoo Real Time system
This setup can be extended to following systems;
- Standalone system
- Boot server for PXE network boot for HDD less front-end PCs
- Real-time network computers like NDS, DAQ servers
setup front-end 12/15/2010 at 40m
Make a full copy of Alex HDD
- Obtain Alex HDD
Do not forget to make a copy of the original HDD. Obtain Knoppix and type
dd_rescue /dev/sda /dev/sdb
Boot
- Prepare following equipment;
- PC for frontend (which has at least one PCIe slot, for example SUPER MICRO)
- At least one GS ADC card
- IO chassis (or put ADC into PC's PCIe slot directry)
- Timing signal
- Timing signal can be replaced by a function generator with 65536Hz, 5Vpp and 2.5V offset.
- This timing signal has to be injected into the ADC card somehow.
- Network router for private network.
- Connect all, and boot from Alex HD
- Login as root with CDS password, and set a password for controls.
change controls UID to 1001, and controls GID to 1001 because all of the CDS files owned by controls account with UID=1001 and GID=1001. see https://awiki.ligo-wa.caltech.edu/aLIGO/CdsUbuntuDesktopBuild
- Delete existing IP on /etc/hosts, and add new IP and host name like gwave-118 in private network
If you need to PXE boot other HDD less PSs through network
- modify /etc/dhcp/dhcpd.conf to delete existing front-end and add new front-end PCs
run dhcpd if not running as
# /etc/init.d/dhcpd start
or add dhcpd as default run level as
# rc-update add dhcpd default
and reboot.Boot up the TFTP server of master
# /etc/init.d/in.tftpd start
or add TFTP server as default run level
# rc-update add in.tftpd default
and reboot.
Trouble shooting
tftp can not be accessible from HDD less PC
cd /etc grep -r diskless * more /etc/conf.d/in.tftpd
Start TFTP server
# /etc/init.d/in.tftpd start
If you need to start TFTP server automatically, add TFTP server as default run level
# rc-update add in.tftpd default
How to stop TFTP server from service
# rc-update del in.tftpd default
X windows cannot open through ssh
Delete registered hosts from .ssh/known_hosts
or try
ssh -Y hostname
emerge does not work
# emerge --sync