Re: Problem getting DNS server list, no hostname set

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Hi there,

I may be addressing this to the wrong ML ?

If so could someone point me to the right one ?

Thanks

Brem

2010/8/13 brem belguebli <brem.belguebli@xxxxxxxxx>:
> 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@xxxxxxxxx>:
>> 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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