IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 11 July 2010 (all times are UTC)
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| 03:21 | <RicardoPerez> hi! anybody knows where and when an LTSP client configures its network parameters via DHCP? My LTSP clients are unable to get their broadcast address from the server
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| 03:29 | <Appiah> umm
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| 03:29 | are you using the ltsp dhcp server?
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| 03:30 | (thats default)
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| 03:30 | then check your dhcpd.conf
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| 03:31 | that and lts.conf can alter your clients network settings
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| 03:32 | <RicardoPerez> Appiah: hi!
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| 03:33 | the dhcp server seems to be right, because after login into root in the LTSP client, I do "udhcpc eth0" and it gets its broadcast address perfectly well
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| 03:33 | so it seems to be that dhcpd.conf is right. it includes an "option broadcast-address" line
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| 03:36 | but the LTSP client gets a 0.0.0.0 broadcast address :(... I need to put a script with an "udhcpc eth0" line in RCFILE_01 in order to the client do a new DHCP request and then the broadcast address is getting right
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| 03:40 | Hummmmm... if I do "cat /proc/cmdline" in the LTSP client, I get the following:
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| 03:41 | ro initrd=initrd.img quiet splash nbdport=2001 BOOT_IMAGE=vmlinuz ip=192.168.0.2:192.168.0.1:192.168.0.1:255.255.0.0 BOOTIF=01-08-00-27-d6-3b-41
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| 03:42 | according to /opt/ltsp/i386/usr/share/initramfs-tools/scripts/init-premount/udhcp:
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| 03:42 | # 2) One NIC, static ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf>:
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| 03:42 | # It'll use the static IP.
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| 03:43 | # 3) One NIC, IPAPPEND 1 or 3 or ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:
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| 03:43 | # It'll use the static IP.
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| 03:43 | it seems to be that i'm in the 3) case
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| 03:44 | so the client sets up the client ip, server ip, gateway ip and netmask statically
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| 03:44 | and udhcpc does nothing here
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| 03:45 | however, it doesn't sets up the broadcast address
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| 04:33 | <Appiah> may I ask what are you trying to do?
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| 04:34 | set the broadcast adress which seams to be 0.0.0.0 per default?
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| 04:40 | <RicardoPerez> no no, i'm trying to set the good broadcast for my clients, but they get 0.0.0.0 instead of their correct broadcast
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| 04:45 | <Appiah> ok
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| 04:45 | did you modify dhcpd.conf?
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| 04:46 | <RicardoPerez> my dhcpd.conf is right, i think, because subsequent "udhcpc eth0" invocations from the ltsp clients sets up the broadcast address perfectly
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| 04:47 | <Appiah> well did you?
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| 04:47 | <RicardoPerez> yes, I modify the dhcpd.conf a bit
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| 04:48 | <Appiah> can you upload the dhcpd.conf to pastebin?
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| 04:48 | <RicardoPerez> ok
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| 04:49 | http://ubuntu.pastebin.com/xwYXNV8p
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| 04:54 | <Appiah> is udhcpc the default dhcp client?
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| 04:56 | <RicardoPerez> i suppose so... i didn't change nothing related with that
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| 04:57 | <Appiah> /usr/share/udhcpc/default.script should have $BROADCAST , but I wonder if that file is being read during the second time
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| 04:57 | if I remeber correctly , LTSP clients will ask for dhcp twice
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| 05:00 | <RicardoPerez> did you mean /etc/udhcpc/default.script?
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| 05:05 | <Appiah> err ye :D
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| 05:07 | <RicardoPerez> yeah, i have success hardcoding /opt/ltsp/i386/usr/share/initramfs-tools/scripts/init-premount/udhcpc after a bit of hacking...
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| 05:07 | but that's an ugly solution
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| 05:15 | <Appiah> think you should post on the mailing list and see if people get the same problem
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| 05:15 | might be a bug
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| 05:19 | <RicardoPerez> yes, i think so, too
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| 05:20 | thank you very much, Appiah
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