Install Arch Linux under the following conditions.
conditions
/ dev / md0 with / dev / sda1 and / dev / sdb1 (partition for / boot) / dev / md1 with / dev / sda2 and / dev / sdb2 (partition for /)Download the ISO file ʻarchlinux-year.month.day-x86_64.iso` from the official Download ArchLinux page.
Write the ISO file to the USB memory using the dd command.
# dd bs=4M if=/path/to/archlinux.iso of=/dev/sdy status=progress && sync
When the USB installation media is complete, boot the live environment from the USB installation media.
Create partition for / dev / sda
root@archiso ~ # gdisk /dev/sda
###Version information etc.###
Comand (? for help):o
This option deletes all partitions and create a new protective MBR.
Proceed? (Y/N):Y
Comand (? for help):n
Partition number (1-128, default 1):1
First sector (34-xxxxxx, default = 2048) or {+-}size{KMGTP}:2048
Last sector (2048-xxxxxx, default = xxxxxx) or {+-}size{KMGTP}:+100MB
Hex code or GUID (L to show codes, Enter = 8300):ef02
Changed type of partition to 'BIOS boot partition'
Comand (? for help):n
Partition number (1-128, default 2):2
First sector (34-xxxxxx, default = 206848) or {+-}size{KMGTP}:206848
Last sector (2048-xxxxxx, default = xxxxxx) or {+-}size{KMGTP}:-100MB
Hex code or GUID (L to show codes, Enter = 8300):fd00
Changed type of partition to 'Linux RAID'
Comand (? for help):w
Final checks compleate. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!
DO you want to proceed? (Y/N):Y
OK; writing new GUID partition table (GPT) to /dev/sda
The Operation has compleated successfully.
Create partition for / dev / sdb (same setting as / dev / sda)
root@archiso ~ # gdisk /dev/sdb
###Version information etc.###
Comand (? for help):o
This option deletes all partitions and create a new protective MBR.
Proceed? (Y/N):Y
Comand (? for help):n
Partition number (1-128, default 1):1
First sector (34-xxxxxx, default = 2048) or {+-}size{KMGTP}:2048
Last sector (2048-xxxxxx, default = xxxxxx) or {+-}size{KMGTP}:+100MB
Hex code or GUID (L to show codes, Enter = 8300):ef02
Changed type of partition to 'BIOS boot partition'
Comand (? for help):n
Partition number (1-128, default 2):2
First sector (34-xxxxxx, default = 206848) or {+-}size{KMGTP}:206848
Last sector (2048-xxxxxx, default = xxxxxx) or {+-}size{KMGTP}:-100MB
Hex code or GUID (L to show codes, Enter = 8300):fd00
Changed type of partition to 'Linux RAID'
Comand (? for help):w
Final checks compleate. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!
DO you want to proceed? (Y/N):Y
OK; writing new GUID partition table (GPT) to /dev/sdb
The Operation has compleated successfully.
Creating a RAID1 array (/ dev / md0)
root@archiso ~ # mdadm --create --verbose --level=1 --metadata=1.2 --chunk=64 --raid-devices=2 /dev/md0 /dev/sda1 /dev/sdb1
mdadm: chunk size ignored for this level
mdadm: /dev/sda1 appers to contain an ext2fs file system
size=101376K mtime=xxx xxx x xx:xx:xx xxxx
mdadm: /dev/sdb1 appers to contain an ext2fs file system
size=101376K mtime=xxx xxx x xx:xx:xx xxxx
mdadm: size set to 101376K
Continue creating array?y
mdadm: array /dev/md0 started
Creating a RAID1 array (/ dev / md1)
root@archiso ~ # mdadm --create --verbose --level=1 --metadata=1.2 --chunk=64 --raid-devices=2 /dev/md1 /dev/sda2 /dev/sdb2
mdadm: chunk size ignored for this level
mdadm: size set to xxxxxxxxxK
mdadm: automatically enabling write-intent bitmap on large array
mdadm: array /dev/md1 started
Display the creation status of the RAID array
root@archiso ~ # cat /proc/mdstat
Personalities : [raid1]
md1 : active raid1 sdb2[1] sda2[0]
xxxxxxxxx blocks super 1.2 [2/2] [UU]
[==>..................] resync = 38.9% (yyyyyyy/xxxxxxxxx) finish=7.6min speed 153642K/sec
bitmap: 1/1 pages [4KB], 65536KB chunk
md0 : active raid1 sdb1[1] sda1[0]
101376 blocks super 1.2 [2/2] [UU]
unused devices: <none>
Wait until the RAID array is created. It may take more than an hour to run on a large capacity HDD.
Initialize the partition when the array creation is complete.
root@archiso ~ # mkfs.ext4 /dev/md0
root@archiso ~ # mkfs.ext4 /dev/md1
Mount the created partition.
root@archiso ~ # mount /dev/md1 /mnt
root@archiso ~ # mkdir /mnt/boot
root@archiso ~ # mount /dev/md0 /mnt/boot
Time setting
root@archiso ~ # timedatectl set-ntp true
root@archiso ~ # timedatectl set-timezone Asia/Tokyo
Select a mirror list to install the ArchLinux package (select a Japanese server)
root@archiso ~ # vim /etc/pacman.d/mirrorlist
root@archiso ~ # cat /etc/pacman.d/mirrorlist
##
## Arch Linux repository mirrorlist
## Filtered by mirror score from mirror status page
## Generated on 20xx-xx-xx
##
## Japan
Server = http://mirrors.cat.net/archlinux/$repo/os/$arch
## Japan
Server = http://ftp.tsukuba.wide.ad.jp/Linux/archlinux/$repo/os/$arch
## Japan
Server = http://ftp.jaist.ac.jp/pub/Linux/ArchLinux/$repo/os/$arch
## other country
...
Installation of base system and required packages
root@archiso ~ # pacstrap /mnt base linux linux-firmware vim dhcpcd mdadm
Update the mdadm configuration file. If you do not do this, the md127 problem will occur.
root@archiso ~ # mdadm --detail --scan >> /mnt/etc/mdadm.conf
root@archiso ~ # cat /mnt/etc/mdadm.conf
...
...
...
ARRAY /dev/md0 metadata=1.2 name:archiso:0 UUID=yyyyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy
ARRAY /dev/md1 metadata=1.2 name:archiso:0 UUID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
Create an fstab to determine the disk using the UUID.
root@archiso ~ # genfstab -U /mnt >> /mnt/etc/fstab
root@archiso ~ # cat /mnt/etc/fstab
# Static information about the filesystems.
# See fstab(5) for details.
# <file system> <dir> <type> <options> <dump> <pass>
# /dev/md1
UUID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx / ext4 rw,relatime 0 1
# /dev/md0
UUID=yyyyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy /boot ext4 rw,relatime 0 2
Chroot to the installed environment
root@archiso ~ # arch-chroot /mnt
Time zone and time settings
[root@archiso /]# ln -sf /usr/share/zoneinfo/Asia/Tokyo > /etc/localtime
[root@archiso /]# hwclock --systohc
Setting the character code to use
[root@archiso /]# vim /etc/locale.gen
[root@archiso /]# cat /etc/locale.gen
en_US.UTF-8 UTF-8
ja_JP.UTF-8 UTF-8
[root@archiso /]# locale-gen
[root@archiso /]# vim /etc/locale.conf
[root@archiso /]# cat /etc/locale.conf
LANG=en_US.UTF-8
Hostname settings
[root@archiso /]# vim /etc/hostname
[root@archiso /]# cat /etc/hostname
myhostname
Network settings
[root@archiso /]# vim /etc/hosts
[root@archiso /]# cat /etc/hosts
127.0.0.1 localhost
::1 localhost
127.0.1.1 myhostname.localdomain myhostname
root password setting
[root@archiso /]# passwd
Added mdadm hook to mkinitcpio.conf
[root@archiso /]# vim /etc/mkinitcpio.conf
[root@archiso /]# cat /etc/mkinitcpio.conf
....
MODULES=(raid1 ext4)
....
HOOKS=(base udev autodetect modconf block filesystems keyboard fsck mdadm_udev)
....
Create an initramfs image
[root@archiso /]# mkinitcpio -p linux
Install and configure the bootloader.
For RAID1, execute the grub-install command in / dev / sda and / dev / sdb respectively.
[root@archiso /]# pacman -S grub os-prober intel-ucode
[root@archiso /]# grub-install --target=i386-pc --debug /dev/sda
[root@archiso /]# grub-install --target=i386-pc --debug /dev/sdb
[root@archiso /]# grub-mkconfig -o /boot/grub/grub.cfg
Set to connect to the network at boot time
[root@archiso /]# systemctl enable dhcpcd
Log out of chroot and reboot
[root@archiso /]# exit
root@archiso ~ # umount -R /mnt
root@archiso ~ # reboot
Log in as root
myhostname login : root
passwd
Create a local user
[root@myhostname ~]# useradd -m -G wheel -s /bin/bash myusername
[root@myhostname ~]# passwd myusername
Install sudo so that users in the wheel group can use sudo.
[root@myhostname ~]# pacman -S sudo
[root@myhostname ~]# vim /etc/sudoers
[root@myhostname ~]# cat /etc/sudoers
...
##
## User privilege specification
##
root ALL=(ALL) ALL
## Uncomment to allow members of group wheel to execute any command
%wheel ALL=(ALL) ALL
...
Login as a local user
[root@myhostname ~]# exit
myhostname login : myusername
passwd
Install and enable openssh
[myusername@myhostname ~]# sudo pacman -S openssh
[myusername@myhostname ~]# sudo systemctl enable sshd
Arch Linux was installed in RAID1 storage in an environment booted by BIOS boot, and settings were made to the point where it could be operated externally with ssh. Detailed explanation is [Installation Guide-ArchWiki](https://wiki.archlinux.jp/index.php/%E3%82%A4%E3%83%B3%E3%82%B9%E3%83%88%E3 % 83% BC% E3% 83% AB% E3% 82% AC% E3% 82% A4% E3% 83% 89) and RAID-ArchWiki / RAID).
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