Nova baremetal tips

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Recently, my colleagues encountered some pitfalls in centos6.3 using the Icehouse version Nova's baremetal driver. I didn't know much about this one before. The simple record is as follows: 1. Bad or missing multicast discovery address found at startup:
Debugging finds that the DHCP server does not contain the address of the TFTP server when the packet is returned, and the final result is that the version of dnsmasq is too low. Upgrade to 2.66.

2. "unable to locate configuration file"

Finally, we found that the TFTP configuration on centos6.3 was incorrect:

[[Email protected] tftpboot] # pwd
/Tftpboot
[[Email protected] tftpboot] # ll
Total 40
-RW-r -- 1 Nova 23 Sep 5 0:07 map-File
-RW-r -- 1 Nova 26595 Sep 5 pxelinux.0

Drwxr-XR-x 2 Nova 4096 Sep 5 pxelinux. cfg

[[Email protected] tftpboot] # Cat map-File
R ^ ([^/])/tftpboot/\ 1

[[Email protected] tftpboot] # Cat/etc/xinetd. d/TFTP
# Default: Off
# Description: the TFTP server serves files using the Trivial File Transfer \
# Protocol. The tftp protocol is often used to boot diskless \
# Workstations, download configuration files to network-aware printers ,\
# And to start the installation process for some operating systems.
Service tftp
{
Socket_type = dgram
Protocol = UDP
Wait = Yes
User = root
Server =/usr/sbin/in. tftpd
Server_args = -- map-file/tftpboot/Map-file/tftpboot
Disable = No
Per_source = 11
CPIs = 100 2
Flags = IPv4
}

Nova baremetal tips