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Jared Dunbar 4 years ago
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      arch-vm.md

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arch-vm.md

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# installing Arch on a VM
This is a basic set of instructions for installing Arch on a virtual machine.
# starting steps
Boot up the latest Arch install disk from PXE or an `iso` file.
Find which disk partition you are installing on. For the purpose of this documentation, the disk is `/dev/vda`, but it may be different.
```
lsblk
```
Run parted and make a partition. This is for MBR.
```
parted /dev/vda
(parted) mklabel msdos
(parted) mkpart p ext4 1M 100%
(parted) quit
```
Create the filesystem
```
mkfs.ext4 /dev/vda1
```
Mount the filesystem.
```
mount /dev/vda1 /mnt
```
Edit the mirrorlist
```
vim /etc/pacman.d/mirrorlist
```
Add the following line:
```
Server = http://128.153.145.19/archlinux/$repo/os/$arch
```
Pacstrap the base system (base is `base` system, `base-devel` is gcc and some build tools, `vim` for editor, `htop` for stuff, `git` for aur, `grub` for bootloader, `go` for `yay` later)
```
pacstrap /mnt base base-devel vim htop git grub go
```
Wait.
Stop waiting. Install fstab
```
genfstab -U /mnt > /mnt/etc/fstab
```
Chroot
```
arch-chroot /mnt /bin/bash
```
Install `grub`.
```
grub-mkconfig -o /boot/grub/grub.cfg
grub-install /dev/vda
# notice, not /dev/vda1. This is the disk, not the partition.
```
Set password. Use the VMSSMP for COSI infrastructure.
```
passwd
```
Configure networking. Find the network interface. Something with `NO CARRIER` is probably *not* it. It may have an IPv6 global address and perhaps a COSI IPv4 address already.
```
ip -c a
```
Change to the `netctl` folder, copy static ethernet example.s
```
cd /etc/netctl
cp examples/ethernet-static ethernet
```
Edit the ethernet file.
```
vim ethernet
```
Typical contents
```
Description='A basic statc ethernet connection'
Interface=ens3
Connection=ethernet
IP=static
Address=('128.153.145.23/24')
Gateway='128.153.145.1'
DNS=('128.153.145.3')
```
Enable that, document IP addresses if on COSI infrastructure.
```
netctl enable ethernet
```
Edit hostname
```
vim /etc/hostname
```
We're done. Exit and reboot. Remove bootable media if applicable.
```
exit
reboot
```
If you screw up, feel free to reboot into the live media, and then you can chroot into the system to fix it after mounting it.
Don't forget to create the `cslabadmin` user. `openssh` server is also probably good - typically the only edits are to enable `Listen 0.0.0.0` and `Port 13699`.
Random commands useful to doing things:
```
# create user
useradd <username>
# create group
groupadd <group>
# add user to group
gpasswd -a <username> <groupname>
# set default editor to Vim
export EDITOR=vim
# add sudo group to sudoers
visudo
# get and install yay (AUR package manager)
git clone https://aur.archlinux.org/yay.git
cd yay
makepkg -i
```
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