Archive for September 11th, 2010

MAC Address changes when using virt-install

The MAC address seems to change after you use virt-install, which leads to the ifup script complaining that the hardware address doesn’t match what’s in the ifcfg-eth0 file. However, after the domain is defined, the MAC address seems to stick, so the fix is to change the ifcfg-eth0 to reflect the new MAC address.

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Setting the hostname in Fedora 13

Should be simple, the number of times I’ve done it, but I’ve ended up searching google for how to do so. Again.

vim /etc/sysconfig/network, add “HOSTNAME=newhost” or change it.

Also, vi /etc/sysconfig/network-scripts/ifcfg-eth0, add “DHCP_HOSTNAME=newhost” for the hostname to be sent with DHCP requests. Have to find out if setting up the hostname with the kickstart file works or not. (ie. network –device eth0 –bootproto dhcp –hostname %name%)

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'Hardware' clocks in Fedora 13/14 VMs

Disable the hardware clock
The Xen domU will use the host’s clock, so we replace hwclock with an empty shell script

echo exit 0 > /sbin/hwclock

(from blog.jphoude.qc.ca/2007/10/26/centos-5-xen-images-part-1/)

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