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Re: Problem getting DNS server list, no hostname set



Hi,

I started anaconda with log=debug to see if I get more information:
The dns server option is really trapped but still the same message
complaining it can't look up hostname.

09:40:13 DEBUG   : DHCPv4 eth0 - option routers default gateway 0:
192.168.84.254
09:40:13 DEBUG   : DHCPv4 eth0 - option domain-name-servers:
09:40:13 DEBUG   : DHCPv4 eth0 - domain-name-server 0: 10.146.0.11
09:40:13 DEBUG   : DHCPv4 eth0 - domain-name-server 1: 10.146.36.11
09:40:13 DEBUG   : DHCPv4 eth0 - option host-name: testVM
09:40:13 DEBUG   : nic_addr_send: add IFA_ADDRESS: 3 192.168.84.250/24

09:40:13 DEBUG   : nic_addr_send: add IFA_LOCAL: 3 192.168.84.250

09:40:13 DEBUG   : nic_addr_send: add address: 3 broadcast: 192.168.84.255

09:40:13 ERROR   : no DNS servers, can't look up hostname

Any hint or idea ?

Thanks

2010/8/12 brem belguebli <brem belguebli gmail com>:
> Hi,
>
> I'm systematically hiting the message "no DNS servers, can't look up
> hostname"  while trying to build a hostname based ks file VM install.
>
> The PXE server used  is a Rhel 5.4 X86_64, the DHCP service is offered
> by dnsmasq.
> The client is a VM expected to be installed with RHEL 5.4.
>
> When logging dsmasq, I can see that the dns server option (6) is sent
> to the client  as well as the hostname option (12).
>
> Below the dnsmasq log on the server
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: DHCP packet: transaction-id
> is 1664975136
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: Available DHCP range:
> 192.168.84.250 -- 192.168.84.251
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: Vendor class: anaconda
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: DHCPREQUEST(br0)
> 192.168.84.250 54:52:00:22:92:83
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: DHCPACK(br0) 192.168.84.250
> 54:52:00:22:92:83 testVM
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: requested options: 1:netmask,
> 28:broadcast, 3:router, 15:domain-name,
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: requested options:
> 6:dns-server, 12:hostname, 33:static-route
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: next server: 192.168.84.254
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: bootfile name: pxelinux.0
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: tags: known
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: sent size:  1 option:
> 53:message-type  05
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: sent size:  4 option:
> 54:server-identifier  c0:a8:54:fe
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: sent size:  4 option:
> 51:lease-time  00:00:1c:20
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: sent size:  4 option: 58:T1
> 00:00:0e:10
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: sent size:  4 option: 59:T2
> 00:00:18:9c
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: sent size:  4 option:
> 1:netmask  ff:ff:ff:00
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: sent size:  4 option:
> 28:broadcast  c0:a8:54:ff
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: sent size:  4 option:
> 3:router  c0:a8:54:fe
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: sent size:  6 option:
> 12:hostname  74:65:73:74:56:4d
> Aug 12 13:24:16 cmxi1152 dnsmasq[11759]: sent size:  8 option:
> 6:dns-server  0a:92:00:0b:0a:92:24:0b
>
> On client side (console ALT-F3 log)
> 11:24:15 INFO     : getting kickstart file
> 11:24:15 INFO     : sending dhcp request through device eth0
> 11:24:15 INFO     : requesting dhcp timeout 45
> 11:24:15 INFO     : Listening on LPF/eth0/54:52:00:22:93:83
> 11:24:15 INFO     : Sending on LPF/eth0/54:52:00:22:93:83
> 11:24:15 INFO     : Sending on Socket/fallback
> 11:24:15 INFO     : DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
> 11:24:15 INFO     : DHCPOFFER from 192.168.84.254
> 11:24:15 INFO     : DHCPREQUEST on eth0 to 255.255.255.255 port 67
> 11:24:15 INFO     : DHCPACK from 192.168.84.254
> 11:24:15 INFO     : bound to 192.168.84.250 -- renewal in 3052 seconds.
> 11:24:15 INFO     : DHCPv4 eth0 - obtained lease 192.168.84.250
> 11:24:15 INFO     : DHCPv4 eth0 - option subnet-mask: 255.255.255.0
> 11:24:15 INFO     : DHCPv4 eth0 - option subnet-mask - prefix_len: 24
> broadcast: 192.168.84.254
> 11:24:15 INFO     : DHCPv4 eth0 - option routers:
> 11:24:15 ERROR : no DNS servers, can't look up hostname
>
> Thanks
>
> Brem
>


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