pc_engines_apu_centos_7
Table of Contents
PC Engines APU - install CentOS 7
This pages describes the installation of CentOS 7 on PC Engines APU hardware.
Preparation
Console
- Connect a serial console, or USB↔Serial adapter. Make sure your locale is set to UTF-8.
$ locale LANG="en_US.UTF-8" LC_COLLATE="en_US.UTF-8" LC_CTYPE="en_US.UTF-8" LC_MESSAGES="en_US.UTF-8" LC_MONETARY="en_US.UTF-8" LC_NUMERIC="en_US.UTF-8" LC_TIME="en_US.UTF-8" LC_ALL="en_US.UTF-8"
- If locale is not set right, add the following lines to your ~/.profile and login again.
export LC_ALL=en_US.UTF-8 export LANG=en_US.UTF-8
- Connect to serial console:
screen /dev/tty.usbserial-A7022O5B 115200
PXE
- Edit /tftpboot/pxelinux.cfg/default:
serial 0 115200 default centos7 prompt 0 timeout 0 label centos7 kernel http://yourrepo.host/centos/7/CentOS7-base/images/pxeboot/vmlinuz append initrd=http://yourrepo.host/centos/7/CentOS7-base/images/pxeboot/initrd.img ks.device=bootif ip=dhcp ks=http://yourpxe.host/apu-centos7.ks console=ttyS0,115200
Kickstart
- Edit kickstart file apu-centos7.ks:
#### #### PC Engines APU KickStart installation #### install # Base repo url --url=http://repo/centos/7/CentOS7-base # Configure updates repo repo --name="CentOS7-updates" --baseurl=http://repo/centos/7/CentOS7-updates network --onboot yes --bootproto dhcp lang en_US.UTF-8 keyboard --vckeymap=us --xlayouts='us','us' rootpw --iscrypted <sha512 password hash> firewall --service=ssh authconfig --enableshadow --passalgo=sha512 selinux --enforcing timezone --utc Europe/Amsterdam # Set serial console and change disk elevator to noop for SSD. bootloader --location=mbr --driveorder=sda --append="console=tty0 console=ttyS0,115200 elevator=noop rd_NO_PLYMOUTH" # Any disks whose formatting is unrecognized are initialized. zerombr # Erases all partitions from the system. clearpart --all --drives=sda --initlabel # Initialize boot partition. part /boot --fstype=xfs --size=512 --asprimary # Create LVM pv and vg. part pv.01 --size=1000 --grow --asprimary volgroup vg pv.01 # Create lv's, set discard, noatime and commit time. Leave some space left in the VG for later use. logvol swap --vgname=vg --size=512 --name=lv_swap --fstype=swap logvol / --vgname=vg --size=4096 --name=lv_root --fstype=xfs logvol /var --vgname=vg --size=4096 --name=lv_var --fstype=xfs logvol /home --vgname=vg --size=512 --name=lv_home --fstype=xfs # Create non administrative user user --name=username --homedir=/home/username --password=<sha512 password hash> # Reboot after installation. reboot # Install minimal, exclude @Base, exclude documentation %packages --nobase --excludedocs @Core #default bind-utils #dig, host, nslookup openssh-clients #ssh client, key agent, sftp, scp nc #nc (netcat) %end %post # Disable SSH root login /bin/sed -i.bak 's/#PermitRootLogin yes/PermitRootLogin no/g' /etc/ssh/sshd_config # Mount /tmp as tmpfs. systemctl enable tmp.mount #Add weekly fstrim job cat << EOF > /etc/cron.weekly/fstrim #!/bin/sh #this script will run weekly, will overwrite log. trimlog=/var/log/fstrim.log echo > \$trimlog for fs in \$(lsblk -o MOUNTPOINT,DISC-MAX,FSTYPE | grep -E '^/.* [1-9]+.* ' | awk '{print \$1}'); do printf "\`date\` - \`fstrim -v \$fs\`\n" >>\$trimlog done EOF chmod +x /etc/cron.weekly/fstrim # Enable LVM to issue discards. /bin/sed -i.bak 's/issue_discards = 0/issue_discards = 1/g' /etc/lvm/lvm.conf # Reduce swappiness. echo "vm.swappiness=1" >> /etc/sysctl.d/swappiness.conf echo "vm.vfs_cache_pressure=50" >> /etc/sysctl.d/swappiness.conf # Set chassis name and icon /bin/hostnamectl set-chassis "server" exit 0 %end
Installation
- Boot the APU and press F12, select “iPXE” to boot from network.
pc_engines_apu_centos_7.txt · Last modified: 2021/10/09 15:14 by 127.0.0.1