-
Go to OpenWRT release page, select the latest release stable release, then
targets
->x86
->64
. Right-clickgeneric-ext4-combined.img.gz
(not the "efi"!) and copy the link. -
On the Proxmox host, download the archive and unpack it:
wget *paste link here*
gunzip openwrt-*.img.gz
- Resize the image to be the size you want your VM's disk to be (example with 8 GiB):