# On PVE Host

Create a Linux VM without disk, in my PVE, the new VM id is 115.

wget https://openwrt.proxy.ustclug.org/snapshots/targets/x86/64/openwrt-x86-64-generic-ext4-combined.img.gz
gunzip openwrt-x86-64-generic-ext4-combined.img.gz
qemu-img resize -f raw openwrt-x86-64-generic-ext4-combined.img 20G
qm importdisk 115 openwrt-x86-64-generic-ext4-combined.img local-lvm
rm -f openwrt-x86-64-generic-ext4-combined.img

From VM Hardware, click the newly imported disk, open the dialog and save.

Then Change boot order, add the disk.

Start OpenWRT VM

# On OpenWRT

uci set network.lan.ipaddr='192.168.11.243'
uci commit
sed -i -e 's/downloads.openwrt.org/openwrt.proxy.ustclug.org/g' /etc/opkg/distfeeds.conf
reboot

# Now you should be able to access VM from other machines.

# temporary internet access
ip route add default via 192.168.11.1
echo 'nameserver 192.168.11.1' > /etc/resolv.conf

opkg update

# install web ui
opkg install luci bash mtr

# change default shell to bash
sed -i -e 's/bin\/ash/bin\/bash/g' /etc/passwd

# install wwan module (NCM mode) support
opkg install kmod-usb-net-rndis kmod-usb-acm luci-proto-ncm picocom

# Resize disk
# https://openwrt.org/docs/guide-user/advanced/expand_root
opkg install parted losetup resize2fs
wget -U "" -O expand-root.sh "https://openwrt.org/_export/code/docs/guide-user/advanced/expand_root?codeblock=0"
. ./expand-root.sh

reboot

# On PVE Console

Load Quectel Module by Adding USB Hardware

# On OpenWRT Console

Network > Interfaces > Add New Interface

Name: wwan

Protocol: DHCP client

Device: usb0

You should be able to find usb0 by `ip a`

Firewall, set Zone to WAN.

Save & Apply

# Note

DO NOT ATTACH Quectel WWAN module before OpenWRT fully booted.