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supermicro_-_centos7

Supermicro - Install CentOS 7

—-====[Work in progress]====—-

This page describes the installation of CentOS 7 on Supermicro hardware. I will be using this server for virtualization (KVM).

BIOS settings

Mainbord model: X9SCL, version: 2.10 (01/09/2014)
IPMI Firmware: 3.38

  • Quiet Boot: Disabled
  • Restore on AC Power Loss: Last State
  • Intel VT-d: Enabled
  • Active State Power Management: Disabled
  • SATA Mode: AHCI
  • SOL (Serial Over LAN): Enabled
    • Terminal type: VT100+
    • Bits per second: 115200
  • Fan speed control mode: Optimal

Install CentOS 7

  • Connect to the server via IPMI (remote console) and connect the installation ISO via the iKVM viewer.
  • Boot the server, press F11 and select: IPMI Virtual CDROM
  • Date & Time: Europe/Amsterdam
  • Keyboard: English (US)
  • Language support: English (United States)
  • Installation source: Local media
  • Software selection: minimal install
  • Installation destination: software RAID1 /boot, swap, /, /var.

Configure CentOS7

Configure Serial over LAN (SOL)

  • Edit grub settings /etc/default/grub
    ## Serial console settings
    GRUB_TERMINAL="serial console"
    GRUB_TERMINAL_OUTPUT="serial console"
    GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=2 --word=8 --parity=no --stop=1"
    
    ## Remove "rhgb quiet" from GRUB_CMDLINE_LINUX, add: console=tty0 console=ttyS2,115200n8
  • Rebuild the grub.cfg file with following command:
    grub-mkconfig -o /boot/grub/grub.cfg
  • Reboot and test the serial console via IPMI over SSH.

Test SOL connection

  • SSH to ipmi address.
  • Open SOL:
    cd system1/sol1
    start
  • To exit, press: <enter> <esc> <T>.

Configure networking (bonding, VLANs and bridges)

  • Set hostname:
    hostnamectl set-hostname <enter fqdn>
  • Install tools:
    yum install bridge-utils tcpdump
  • At the time of writing, there are some bugs in NetworkManager (nmcli) when enslaving VLAN devices into a bridge. So this configuration will not use NM.
  • Disable NM, enable network service:
    systemctl stop NetworkManager.service
    systemctl disable NetworkManager.service
    systemctl enable network.service
    systemctl start network.service
  • Create bond0 device:
    vi /etc/sysconfig/network-scripts/ifcfg-bond0
    DEVICE=bond0
    BOOTPROTO=none
    ONBOOT=yes
    USERCTL=no
    BONDING_OPTS="mode=4 miimon=100"
    NM_CONTROLLED=no
  • Add bond slaves:
    vi /etc/sysconfig/network-scripts/ifcfg-eno1
    DEVICE=eno1
    MASTER=bond0
    SLAVE=yes
    USERCTL=no
    ONBOOT=yes
    BOOTPROTO=none
    NM_CONTROLLED=no
    
    vi /etc/sysconfig/network-scripts/ifcfg-enp2s0f0
    DEVICE=enp2s0f0
    MASTER=bond0
    SLAVE=yes
    USERCTL=no
    ONBOOT=yes
    BOOTPROTO=none
    NM_CONTROLLED=no
    
    vi /etc/sysconfig/network-scripts/ifcfg-enp2s0f1
    DEVICE=enp2s0f1
    MASTER=bond0
    SLAVE=yes
    USERCTL=no
    ONBOOT=yes
    BOOTPROTO=none
    NM_CONTROLLED=no
    
    vi /etc/sysconfig/network-scripts/ifcfg-enp4s0
    DEVICE=enp4s0
    MASTER=bond0
    SLAVE=yes
    USERCTL=no
    ONBOOT=yes
    BOOTPROTO=none
    NM_CONTROLLED=no
  • Create VLAN and bridge devices, do this for every VLAN you have:
    vi /etc/sysconfig/network-scripts/ifcfg-br50
    DEVICE=br50
    ONBOOT=yes
    SLAVE=bond0.50
    TYPE=Bridge
    VLAN=yes
    NM_CONTROLLED=no
    
    vi /etc/sysconfig/network-scripts/ifcfg-bond0.50
    DEVICE=bond0.50
    VLAN=yes
    ONBOOT=yes
    USERCTL=no
    NM_CONTROLLED=no
    BRIDGE=br50
  • If needed, configure IP-addresses on bridge devices.
  • Restart networking:
    service network restart
  • Test:
    brctl show
    cat /proc/net/bonding/bond0

Configure firewall

  • If virbr0 isn't in zone internal, configure it so:
    firewall-cmd --permanent --zone=internal --change-interface=virbr0
  • Add local (sources) subnets to trusted zone:
    firewall-cmd --permanent --zone=trusted --add-source=192.168.2.0/24
  • Reload firewall:
    firewall-cmd --reload

Configure OS

  • Install and configure chrony
  • Install and configure apcupsd
  • Set tuned profile:
    tuned-adm profile virtual-host
  • Configure postfix

Install virtualization tools

  • Install libvirt etc:
    yum groupinstall "Virtualization Host"
  • Enable guest service so that guests are suspended before reboot/shutdown and auto started after boot:
    systemctl enable libvirt-guests.service
supermicro_-_centos7.txt · Last modified: 2015/03/17 01:02 by admin