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⇤ ← Revision 1 as of 2011-02-24 10:45:24 →
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← Revision 9 as of 2012-06-06 17:55:44 → ⇥
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Editor: OsamuMiyakawa
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## page was renamed from LCGT/subgroup/ifo/digital/RTPC/GentooRTMin
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----
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 1. Delete existing IP on /etc/hosts, and add new IP and host name like gwave-118 in private network  1. Delete existing IP on /etc/hosts, and add new IP and host name like {{{
131.215.113.100 standalone
131.215.113.110 desktop1
}}}
 * Setting up network info. like IP or netmask etc at /etc/conf.d/net if you need.
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 1. Boot up the TFTP server of master{{{# /etc/init.d/in.tftpd start
}}}		  1. 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.
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 1. Add TFTP server as default run level{{{# rc-update add in.tftpd default
}}}		  1. 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.
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=== FAQ ===		 ----
=== Trouble shooting ===
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==== X windows ssh越しにx windowsが開かない ====
.ssh/known_hostsからつなぎたい先を消す。
ssh -Y hostnameを試す		 ==== How to stop TFTP server from service ====
{{{
# rc-update del in.tftpd default}}}
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==== X windows cannot open through ssh ====
Delete registered hosts from .ssh/known_hosts

or try

{{{
ssh -Y hostname
}}}
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{{{
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}}}

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

  1. Obtain Alex HDD

  2. Do not forget to make a copy of the original HDD. Obtain Knoppix and type 

    dd_rescue /dev/sda /dev/sdb

Boot

  1. 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.
  2. Connect all, and boot from Alex HD
  3. Login as root with CDS password, and set a password for controls.

  4. 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

  5. Delete existing IP on /etc/hosts, and add new IP and host name like 

    131.215.113.100       standalone
131.215.113.110       desktop1
  6. Setting up network info. like IP or netmask etc at /etc/conf.d/net if you need.

If you need to PXE boot other HDD less PSs through network

  1. modify /etc/dhcp/dhcpd.conf to delete existing front-end and add new front-end PCs

  2. 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.

  3. 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

KAGRA/Subgroups/DGS/RTPC/GentooRTMin (last edited 2012-06-06 17:55:44 by OsamuMiyakawa)