arch on proxmox

create your vm create name

archox

select your iso

select machine q35 its more efficient 

select bios matching your proxmox motherboard mine is uefi so thats what i used

that needs a efi storage select that and place it same drive as your arch boot drive 

select quemu agent 

for disk select virt io block 

discard if its on ssd

select for cache:

writeback (unsafe) will be faster.

cpu 4 and host

memory atleast 2 gig i used 8g

network virtio

after booting and selecting to install arch

we need to make partitions first fdisk -l to view what it is in /dev

i used cfdisk as its much easier kind of graphical

create efi partition 512m

swap partition 8g

the rest linuxfilesystem

then to place a filesystem on them

mkfs.fat -F32 /dev/vda1

mkfs.ext4 /dev/vda3

mkswap /dev/vda2

swapon /dev/vda2