I use PXE + kickstart in conjunction with Foreman, to install new hosts over the network. I've run into a problem while trying to install Red Hat 5. It looks like the older vmlinuz in RH5 does not support the same kernel parameters as the vmlinuz in RH6.
The problem I'm having is retrieving the kickstart file. The kickstart file is provided over HTTPS from Foreman. This works fine for RH6, so long as I specify a nameserver to use during installation (with nameserver=) as well as "noverifyssl", so the installer doesn't attempt to verify the self-signed certificate of my Foreman host.
These parameters don't seem to exist for RH5. As a results, RH5 is unable to resolve the hostname and pull its kickstart file.
I'm able to install RHEL 6 on a host with a PXE configuration file that looks like this:
default linux label linux kernel boot/RHEL_6_x86_64-x86_64-vmlinuz append initrd=boot/RHEL_6_x86_64-x86_64-initrd.img ks=https://myforemanserver.domain/unattended/provision?token=2134134 nameserver=192.168.1.1 ksdevice=bootif network kssendmac noverifyssl IPAPPEND 2
The same does not work for RHEL5, while using the vmlinuz and initrd for that release. According to https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/Installation_Guide/s1-kickstart2-startinginstall.html, I should be able to specify DNS servers as "dns=". Unfortunately, that did not work for me either.
I could potentially disable SSL on the Foreman server, and just use an IP address over port 80. I'd prefer not to do that. Is there another way to do this?