rhel7 boot option tips

static ip
format=ip:method:gw:netmask:hostname:ifname:none
ip=IP_ADDR::192.168.0.1:255.255.255.0:hostname:eth0:none

leave ifname to empty if you cannot predict the IFname. add net.ifnames=0 to boot option to disable device name inquiry from BIOS. (biosdevname=0)

inst.stage=nfs:nfsvers=3:nfs:192.168.0.1:/yum/rhel7.2
inst.repo=nfs:nfsvers=3:nfs:192.168.0.1:/yum/rhel7.2
inst.ks=http://192.168.0.1/yum/rhel7.2


pxelinux.0 4.0.4 supports image fetching through http.


inst.stage2=http://10.5.15.10/repo/rhel7.5_ceph3.0 text inst.sshd console=tty0 console=ttyS1,115200n8 vlan=vlan1214:enp61s0f0 ksdevice=vlan1214 ip=10.102.14.53::10.102.14.1:255.255.255.0::vlan1214:none

PXE tips

tftpx policy search order
1: 01-MAC_ADDR
if MAC address of PXE client is 00-15-5D-10-31-08, the PXE policy name must be 01-00-15-5d-10-31-08
Please note, all letters in MAC should be lower case


2: IP (HEX) without dot
if assigned IP address is 192.168.2.89, the PXE policy name must be  C0A80259.
Please note, all letters from the converted IP address bits must be upper case and dot need to be removed from the PXE policy name.

boot option tips:
noacpi
noipv6
lang=en
keymap=us