[libvirt] bug: network lock-out

[Jiri Denemark]

> 21:31:09.298: error : virRunWithHook:857 : internal error
> '/usr/sbin/iptables --table mangle --insert POSTROUTING --out-interface
> virbr0 --protocol udp --destination-port 68 --jump CHECKSUM
> --checksum-fill' exited with non-zero status 2 and signal 0: iptables
> v1.4.7: unknown option `--checksum-fill'
> Try `iptables -h' or 'iptables --help' for more information.

This is harmless and ignored by libvirt. If DHCP still works in your guests,
you don't need worry about this feature. The warning below tries to suggest
the error was ignored...

> 21:31:09.299: warning : networkAddIptablesRules:873 : Could not add rule
> to fixup DHCP response checksums on network 'default'.
> 21:31:09.299: warning : networkAddIptablesRules:874 : May need to update
> iptables package & kernel to support CHECKSUM rule.
> 21:31:09.301: error : virRunWithHook:857 : internal error
> '/usr/sbin/dnsmasq --strict-order --bind-interfaces
> --pid-file=/var/run/libvirt/network/default.pid --conf-file=
> --listen-address 10.117.9.1 --except-interface lo' exited with non-zero
> status 1 and signal 0: libvir: error : cannot execute binary
> /usr/sbin/dnsmasq: No such file or directory

This is the really important error for you; /usr/sbin/dnsmasq could not be
found.

Jirka