AtaraxiaDev/openwrt-auto-extroot
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Updated to work on 21.02.0

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Attila Lendvai 2021-10-19 14:27:15 +02:00
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36
README.md
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@ -5,12 +5,15 @@ It's a script to build a customized
firmware image using firmware image using
[ImageBuilder](https://openwrt.org/docs/guide-user/additional-software/imagebuilder). [ImageBuilder](https://openwrt.org/docs/guide-user/additional-software/imagebuilder).
If the generated image is flashed on a device it will try to automatically set up If the generated image is flashed on a device it will try to
automatically set up
[extroot](https://openwrt.org/docs/guide-user/additional-software/extroot_configuration) [extroot](https://openwrt.org/docs/guide-user/additional-software/extroot_configuration)
on **any (!)** storage device plugged into the USB port (`/dev/sda`). Keep in on **any (!)** storage device plugged into the USB port (`/dev/sda`),
mind that **this will erase any inserted storage device while the including your working extroot pendrive if you plug it in only later
router is in the initial setup phase**! Unfortunately there's little in the boot process. Keep in mind that **this will erase any inserted
that can be done at that point to ask the user for confirmation. storage device while the router is in the initial setup phase**!
Unfortunately there's little that can be done at that point to ask the
user for confirmation.
# Why # Why
@ -28,17 +31,19 @@ You can read more about the underlying technology on the OpenWRT wiki: see e.g.
page, or the page that lists some other page, or the page that lists some other
[ImageBuilder frontends](https://openwrt.org/docs/guide-developer/imagebuilder_frontends). [ImageBuilder frontends](https://openwrt.org/docs/guide-developer/imagebuilder_frontends).
As for the actual mechanism: custom scripts are baked into the boot process of the As for the actual mechanism: custom scripts are baked into the boot
flashed firmware. If the extroot overlay is properly set up, then these scripts get hidden by it; process of the flashed firmware. If the extroot overlay is properly
i.e. they will only run when the extroot has failed to mount early in the boot. set up, then these scripts get hidden by it; i.e. they will only run
when the extroot has failed to mount early in the boot process.
### Building ### Building
OpenWRT's ImageBuilder only works on Linux x86_64. To build a firmware, issue the following command: OpenWRT's ImageBuilder only works on Linux x86_64. To build a firmware, issue the following command:
`./build.sh architecture variant device-profile`, e.g.: `./build.sh architecture variant device-profile`, e.g.:
* `./build.sh ar71xx generic tplink_tl-wr1043nd-v1` * `./build.sh ath79 generic tplink_tl-wr1043nd-v1`
* `./build.sh ath79 generic tplink_archer-c6-v2` * `./build.sh ath79 generic tplink_archer-c6-v2`
* `./build.sh ath79 generic tplink_tl-wdr4300-v1`
Results will be under `build/openwrt-imagebuilder-${release}-${architecture}-${variant}.Linux-x86_64/bin/`. Results will be under `build/openwrt-imagebuilder-${release}-${architecture}-${variant}.Linux-x86_64/bin/`.
@ -93,11 +98,12 @@ probably want to customize this script here and there; search for
Most importantly, **set up a password and maybe an ssh key**. Most importantly, **set up a password and maybe an ssh key**.
At the time of writing it only supports a few `ar71xx` routers out of the box, At the time of writing it only supports a few `ath79` routers out of
but it's easy to extend it. Support for a new router entails looking up the box, but it's easy to extend it. Support for a new router entails
some led names for setLedAttribute for the user feedback through the blinking of looking up some led names for `setLedAttribute` so that there's
the leds. It should work fine without that, but it will be less convenient to feedback to the user through the blinking of the leds. It should work
interact with your router in the initial setup phase. fine without that, but it will be less convenient to interact with
your router in the initial setup phase.
# Troubleshooting # Troubleshooting
@ -105,7 +111,7 @@ interact with your router in the initial setup phase.
You should consult the [OpenWRT documentation](https://openwrt.org/docs/guide-user/start). You should consult the [OpenWRT documentation](https://openwrt.org/docs/guide-user/start).
The produced firmware files should be somewhere around The produced firmware files should be somewhere around
```build/openwrt-imagebuilder-17.01.4-ar71xx-generic.Linux-x86_64/bin/ar71xx```. ```./build/openwrt-imagebuilder-21.02.0-ath79-generic.Linux-x86_64/bin/targets/ath79/generic/```.
In short: In short:

9
build.sh
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@ -12,7 +12,7 @@ BUILD=`readlink -f $BUILD`
### ###
### chose a release ### chose a release
### ###
RELEASE="19.07.6" RELEASE="21.02.0"
IMGBUILDER_NAME="openwrt-imagebuilder-${RELEASE}-${TARGET_ARCHITECTURE}-${TARGET_VARIANT}.Linux-x86_64" IMGBUILDER_NAME="openwrt-imagebuilder-${RELEASE}-${TARGET_ARCHITECTURE}-${TARGET_VARIANT}.Linux-x86_64"
IMGBUILDER_DIR="${BUILD}/${IMGBUILDER_NAME}" IMGBUILDER_DIR="${BUILD}/${IMGBUILDER_NAME}"
@ -26,8 +26,9 @@ IMGBUILDERURL="https://downloads.openwrt.org/releases/${RELEASE}/targets/${TARGE
if [ -z ${TARGET_DEVICE} ]; then if [ -z ${TARGET_DEVICE} ]; then
echo "Usage: $0 architecture variant device-profile" echo "Usage: $0 architecture variant device-profile"
echo " e.g.: $0 ar71xx generic tplink_tl-wr1043nd-v1" echo " e.g.: $0 ath79 generic tplink_tl-wr1043nd-v1"
echo " $0 ath79 generic tplink_archer-c6-v2" echo " $0 ath79 generic tplink_archer-c6-v2"
echo " $0 ath79 generic tplink_tl-wdr4300-v1"
echo " $0 bcm53xx generic dlink-dir-885l" echo " $0 bcm53xx generic dlink-dir-885l"
echo " (this last one will not work without editing build.sh, details: https://github.com/attila-lendvai/openwrt-auto-extroot/pull/15#issuecomment-405847440)" echo " (this last one will not work without editing build.sh, details: https://github.com/attila-lendvai/openwrt-auto-extroot/pull/15#issuecomment-405847440)"
echo " to get a list of supported devices issue a 'make info' in the OpenWRT image builder directory:" echo " to get a list of supported devices issue a 'make info' in the OpenWRT image builder directory:"
@ -36,8 +37,8 @@ if [ -z ${TARGET_DEVICE} ]; then
fi fi
# the absolute minimum for extroot to work at all (i.e. when the disk is already set up, for example by hand). # the absolute minimum for extroot to work at all (i.e. when the disk is already set up, for example by hand).
# this list may be smaller and/or different for your router, but it works with my ar71xx. # this list may be smaller and/or different for your router, but it works with my ath79.
PREINSTALLED_PACKAGES="block-mount kmod-usb2 kmod-usb-storage kmod-fs-ext4" PREINSTALLED_PACKAGES="block-mount kmod-fs-ext4 kmod-usb-storage"
# some kernel modules may also be needed for your hardware # some kernel modules may also be needed for your hardware
#PREINSTALLED_PACKAGES+=" kmod-usb-uhci kmod-usb-ohci" #PREINSTALLED_PACKAGES+=" kmod-usb-uhci kmod-usb-ohci"

51
image-extras/common/root/autoprovision-functions.sh
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@ -10,33 +10,34 @@ rootUUID=05d615b3-bef8-460c-9a23-52db8d09e000
dataUUID=05d615b3-bef8-460c-9a23-52db8d09e001 dataUUID=05d615b3-bef8-460c-9a23-52db8d09e001
swapUUID=05d615b3-bef8-460c-9a23-52db8d09e002 swapUUID=05d615b3-bef8-460c-9a23-52db8d09e002
if [ -f /lib/ar71xx.sh ]; then . /lib/functions.sh
. /lib/ar71xx.sh
# let's attempt to define some defaults... # let's attempt to define some defaults...
autoprovisionUSBLed="tp-link:green:usb" autoprovisionUSBLed="green:usb"
autoprovisionStatusLed="tp-link:green:qss" autoprovisionStatusLed="green:qss"
echo Board name is [$(board_name)]
# CUSTOMIZE
case $(board_name) in
*tl-wr1043nd*)
autoprovisionUSBLed="green:usb"
autoprovisionStatusLed="green:qss"
;;
*tl-mr3020*)
autoprovisionUSBLed="green:wps"
autoprovisionStatusLed="green:wlan"
;;
*tl-wr2543n*)
autoprovisionUSBLed="green:wps"
autoprovisionStatusLed="green:wlan5g"
;;
*tl-wdr4300*)
autoprovisionUSBLed="green:wlan2g"
autoprovisionStatusLed="green:wlan5g"
;;
esac
# CUSTOMIZE
case $(ar71xx_board_name) in
"tl-wr1043nd")
autoprovisionUSBLed="tp-link:green:usb"
autoprovisionStatusLed="tp-link:green:qss"
;;
"tl-mr3020")
autoprovisionUSBLed="tp-link:green:wps"
autoprovisionStatusLed="tp-link:green:wlan"
;;
"tl-wr2543n")
autoprovisionUSBLed="tp-link:green:wps"
autoprovisionStatusLed="tp-link:green:wlan5g"
;;
"tl-wdr4300")
autoprovisionUSBLed="tp-link:blue:wan"
autoprovisionStatusLed="tp-link:blue:qss"
;;
esac
fi
log() log()
{ {

4
image-extras/common/root/autoprovision-stage1.sh
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@ -73,8 +73,8 @@ EOF
done done
mkswap -L swap -U $swapUUID /dev/sda1 mkswap -L swap -U $swapUUID /dev/sda1
mkfs.ext4 -L root -U $rootUUID /dev/sda2 mkfs.ext4 -F -L root -U $rootUUID /dev/sda2
mkfs.ext4 -L data -U $dataUUID /dev/sda3 mkfs.ext4 -F -L data -U $dataUUID /dev/sda3
log "Finished setting up filesystems" log "Finished setting up filesystems"
} }

5
image-extras/common/root/autoprovision-stage2.sh
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@ -9,7 +9,7 @@ installPackages()
signalAutoprovisionWaitingForUser signalAutoprovisionWaitingForUser
until (opkg update) until (opkg update)
do do
log "opkg update failed. No internet connection? Retrying in 15 seconds..." log "opkg update failed. No internet connection? Retrying in 15 seconds..."
sleep 15 sleep 15
done done
@ -50,6 +50,9 @@ autoprovisionStage2()
else else
signalAutoprovisionWorking signalAutoprovisionWorking
echo Updating system time using ntp; otherwise the openwrt.org certificates are rejected as not yet valid.
ntpd -d -q -n -p 0.openwrt.pool.ntp.org
# CUSTOMIZE: with an empty argument it will set a random password and only ssh key based login will work. # CUSTOMIZE: with an empty argument it will set a random password and only ssh key based login will work.
# please note that stage2 requires internet connection to install packages and you most probably want to log in # please note that stage2 requires internet connection to install packages and you most probably want to log in
# on the GUI to set up a WAN connection. but on the other hand you don't want to end up using a publically # on the GUI to set up a WAN connection. but on the other hand you don't want to end up using a publically