r720xd

Setting up r720xd

PXE setup

Normal PXE boot. Modify /etc/dhcp/dhcpd.conf to identify the first port. You'll need to get that from racadm dump.

Local Setup

Create two USB sticks

First stick is CentOS min:

dd if=CentOS-7-x86_64-Minimal-1708.iso of=/dev/sdb
sync
# remove

Next stick is a kickstarter disk:

# Create a KS disk
fdisk /dev/sdc <<'EOF'
n
p
1

+1G
w
EOF
fatlabel /dev/sdb KS
mkfs.vfat /dev/sdb1
mount /dev/sdb1 /mnt
grep -v url centos7-ks.cfg > /mnt/ks.cfg
umount /mnt
sync

The centos7-ks.cfg should not refer to a remote url.

Boot r720xd with two USB sticks

Put two SSDs in the 2.5 inch slots in the back of the r720xd without any extra disks. The ks.cfg will create a raid config.

Press <F11> to select BIOS boot. Then select C: drive which will popup a choice for the back or front USB stick. Choose the one with CentOS.

Once the install boot screen is up, select Install (first line) and press <tab> which will allow you to enter at the end of the line:

quiet inst.ks=hd:LABEL=KS:/ks.cfg

Configuring enet

em1 is shared with the idrac so we use em2 for the dhcpd net. You'll need to edit /etc/sysconfig/network-scripts/ifcfg-em2 with something like:

DEVICE="em2"
IPV6INIT="no"
BOOTPROTO="dhcp"
DEFROUTE="yes"
ONBOOT="yes"