UbuntuHelp:UbuntuLTSP/EnableNBDSWAP
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| This page is specific to Ubuntu versions 8.04 |
If you find this information applicable to additional versions/releases, please edit this page and modify this header to reflect that. Please also include any necessary modifications for this information to apply to the additional versions.
To enable NBD Swap (Network swap for thin-clients) we must ensure the proper facilities are active and configured correctly.
- First, you'll want to follow The|procedure to update client chroot. When you're done with that, proceed to the next step.
- Edit /var/lib/tftpboot/ltsp/i386/lts.conf :
NBD_SWAP = True
The next lts.conf options, if used, will give you more control over where NBD Swap takes place:
SWAP_SERVER = IP_ADDRESS_OF_NBDSWAPD_SERVER # default is IP of LTSP server NBD_PORT = PORT # default is 9572 (after following instructions in https://help.ubuntu.com/community/UbuntuLTSP/UpdatingChroot )
- Create a /etc/ltsp/nbdswapd.conf file with the size of desired swapfile for each client. Keep in mind swapfiles live in /tmp, so make sure you have enough space in /tmp to facilitate CLIENTS x SIZE:
SIZE=256
- Make sure /etc/hosts.allow has the following line in it (it isn't in Hardy - only nbdrootd is as of 2008/10/10, so add nbdswapd line below. See https://bugs.launchpad.net/bugs/281501 ):
nbdswapd: ALL: keepalive
Reboot your thin-clients to activate their NBD Swap. You can verify swapfiles are being created in /tmp with the following to give you the number 256M files in /tmp starting with tmp. (which should be roughly accurate):
ls -lh /tmp/tmp.*|grep 256M|wc -l
This should be all you need to get swapfiles going in Ubuntu LTSP.
