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OpenWRT on ESXi

  • USB Wlan
  • NordVPN

Installation

$ sudo apt-get install -y qemu-utils
$ VERSION=22.03.2
$ wget -q https://archive.openwrt.org/releases/${VERSION}/targets/x86/64/openwrt-${VERSION}-x86-64-generic-ext4-combined.img.gz
$ gzip -d openwrt-${VERSION}-x86-64-generic-ext4-combined.img.gz
$ qemu-img convert -f raw -O vmdk openwrt-${VERSION}-x86-64-generic-ext4-combined.img openwrt-${VERSION}-x86-64-generic-ext4-combined.vmdk
$ rm -f openwrt-${VERSION}-x86-64-generic-ext4-combined.img

ESXi Machine

  • ESXi 7/8...
  • Linux
  • Ubuntu Linux (64-bit)
  • 2GB
  • LSI Logic
  • Delete Disk
  • USB3.1
  • Network Adapter Type E1000
  • Delete DVD
  • USB Device <Realtek USB3.0 802.11ac 1200M Adapter (Disconnected)>
# Linux Machine
$ VERSION=22.03.2
$ scp openwrt-${VERSION}-x86-64-generic-ext4-combined.vmdk root@esxi:/vmfs/volumes/datastore1

# ESXi Machine
$ cd /vmfs/volumes/datastore1
$ VERSION=22.03.2
$ vmkfstools -i openwrt-${VERSION}-x86-64-generic-ext4-combined.vmdk OpenWRT.vmdk 
$ rm -f openwrt-${VERSION}-x86-64-generic-ext4-combined.vmdk

Copy "OpenWRT.vmdk" + "OpenWRT-flat.vmdk" to VM's folder and attach it with the UI to the machine as harddisk.

Basic Setup

  • Turn on Machine
  • Login to Terminal via ESXi - set root password
$ vi /etc/config/network

# change interface 'lan' to

config interface 'lan'
        option device 'br-lan'
        option proto 'dhcp'
        
#####
$ reboot
# test: login wia http://openwrt...
# install ssh key http://openwrt.XXX/cgi-bin/luci/admin/system/admin/sshkeys

ssh to openwrt

opkg update
opkg install hostapd
opkg install kmod-usb-core
opkg install kmod-usb2
opkg install kmod-usb3
opkg install kmod-usb-storage
opkg install usbutils

opkg update 
opkg install kmod-rtl8xxxu # this installs all sort of stuff
opkg install kmod-rtlwifi-usb
opkg remove kmod-rtl8xxxu

Build USB Driver

$ sudo apt-get install libncurses-dev zlib1g-dev gawk rsync flex libelf-dev liblzma-dev autoconf build-essential bison libssl-dev 
$ VERSION=22.03.2
$ git clone https://git.openwrt.org/openwrt/openwrt.git
$ cd openwrt
$ git pull
$ #git branch -a
$ #git tag
$ git checkout v${VERSION}
$ ./scripts/feeds update -a
$ ./scripts/feeds install -a
$ wget https://downloads.openwrt.org/releases/${VERSION}/targets/x86/64/config.buildinfo -O .config
$ curl -L https://api.github.com/repos/plntyk/openwrt/tarball \
 | tar xz --wildcards "*/package/kernel/rtl8812au-ct" --strip-components=3 -C ./package/kernel
$ make menuconfig -> save
$ make tools/install
$ make toolchain/install
$ make target/linux/compile
$ make package/kernel/linux/compile
$ make package/kernel/rtl8812au-ct/compile
$ ls -la bin/targets/x86/64/packages/kmod-rtl8812au-ct_*_x86_64.ipk
$ scp bin/targets/x86/64/packages/kmod-rtl8812au-ct_*_x86_64.ipk root@openwrt...:/root

ssh to openwrt

opkg update
opkg install /root/kmod-rtl8812au-ct_*_x86_64.ipk