[Users] ovirt 3.1 guest pxe boot fails

Yuriy Demchenko demchenko.ya at gmail.com
Thu Oct 4 10:49:00 UTC 2012


Hi,

I've started testing ovirt 3.1 in my lab environment and found some 
strange behaviour/bug:
when i create vm and set it to boot from network - first time it boots fine
> 14:23:43.718613 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, 
> Request from 52:54:00:c7:76:50, length 395
pxe works, ip address received and machine boots,
but if I'll restart it via guest command 'reboot' (i.e not through 
stop/start from ovirt admin interface) - pxe boot fails, ipxe just 
states timeout on dhcp requests
and with tcpdump i even cannot see any dhcp requests at all!
instead of that i get some weird malformed packets:
> 14:21:38.529244 00:00:00:00:ff:ff > 00:00:00:00:00:00, ethertype 
> Unknown (0xffff), length 447:
>     0x0000:  ffff 5254 00c7 7650 0800 4500 01a7 0322 ..RT..vP..E...."
>     0x0010:  0000 4011 7625 0000 0000 ffff ffff 0044 .. at .v%.........D
>     0x0020:  0043 0193 02f7 0101 0600 2c78 5053 000c .C........,xPS..
>     0x0030:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x0040:  0000 5254 00c7 7650 0000 0000 0000 0000 ..RT..vP........
>     0x0050:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x0060:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x0070:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x0080:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x0090:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x00a0:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x00b0:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x00c0:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x00d0:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x00e0:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x00f0:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x0100:  0000 0000 0000 0000 0000 0000 0000 0000 ................
>     0x0110:  0000 6382 5363 3501 0139 0205 c05d 0200 ..c.Sc5..9...]..
>     0x0120:  005e 0301 0201 3c20 5058 4543 6c69 656e .^....<.PXEClien
>     0x0130:  743a 4172 6368 3a30 3030 3030 3a55 4e44 t:Arch:00000:UND
>     0x0140:  493a 3030 3230 3031 4d04 6950 5845 3715 I:002001M.iPXE7.
>     0x0150:  0103 0607 0c0f 112b 3c42 4380 8182 8384 .......+<BC.....
>     0x0160:  8586 87af cbaf 2db1 0501 1af4 1000 2201 ......-.......".
>     0x0170:  0119 0101 2101 0118 0101 1101 0113 0101 ....!...........
>     0x0180:  1701 0115 0101 2701 0110 0102 1201 01eb ......'.........
>     0x0190:  0301 0000 3d07 0152 5400 c776 5061 1100 ....=..RT..vPa..
>     0x01a0:  21b3 bc0f e882 4017 9c20 f3e5 0afd 0547 !..... at ........G
>     0x01b0:  ff                                       .

As i'm planning to heavily rely on network booting this issue is 
critical for me, any tips how to solve it?

ovirt 3.1, engine and node on separate hosts, installed on clean fedora 
17/minimal, node with kernel-3.3.4-5.fc17.x86_64
node has 1 nic, 1 network defined in ovirt - ovirtmgmt

-- 
Yuriy Demchenko




More information about the Users mailing list