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readme: OpenWRT -> OpenWrt

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Attila Lendvai 2022-09-19 10:39:19 +02:00
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@ -1,7 +1,7 @@
# What # What
It's a script to build a customized It's a script to build a customized
[OpenWRT](https://openwrt.org/docs/guide-user/start) [OpenWrt](https://openwrt.org/docs/guide-user/start)
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).
@ -26,7 +26,7 @@ project because I thought it's useful enough for making it public.
# How # How
You can read more about the underlying technology on the OpenWRT wiki: see e.g. the You can read more about the underlying technology on the OpenWrt wiki: see e.g. the
[ImageBuilder](https://openwrt.org/docs/guide-user/additional-software/imagebuilder) [ImageBuilder](https://openwrt.org/docs/guide-user/additional-software/imagebuilder)
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).
@ -38,7 +38,7 @@ 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 ath79 generic tplink_tl-wr1043nd-v1` * `./build.sh ath79 generic tplink_tl-wr1043nd-v1`
@ -50,7 +50,7 @@ Results will be under `build/openwrt-imagebuilder-${release}-${architecture}-${v
To see a list of available targets, run `make info` in the ImageBuilder dir. To see a list of available targets, run `make info` in the ImageBuilder dir.
If you want to change which OpenWRT version is used, then edit the relevant variable(s) If you want to change which OpenWrt version is used, then edit the relevant variable(s)
in `build.sh`. in `build.sh`.
### Setup stages ### Setup stages
@ -68,7 +68,7 @@ space), and then reboot.
#### Stage 2: download and install some packages from the internet #### Stage 2: download and install some packages from the internet
Once it rebooted into the new extroot, it will continuously keep trying to install Once it rebooted into the new extroot, it will continuously keep trying to install
some OpenWRT packages until an internet connection is set up on the router. You some OpenWrt packages until an internet connection is set up on the router. You
need to do that manually either by using ssh or the web UI (LuCI). need to do that manually either by using ssh or the web UI (LuCI).
#### Stage 3, optional #### Stage 3, optional
@ -85,7 +85,7 @@ By default the root passwd is not set, so the router will start telnet with
no password. If you want to set up a password, then edit the stage 2 script: no password. If you want to set up a password, then edit the stage 2 script:
[autoprovision-stage2.sh](image-extras/common/root/autoprovision-stage2.sh#L53). [autoprovision-stage2.sh](image-extras/common/root/autoprovision-stage2.sh#L53).
If a password is set, then telnet is disabled by OpenWRT and SSH will listen If a password is set, then telnet is disabled by OpenWrt and SSH will listen
using the keys specified in [authorized_keys](image-extras/common/etc/dropbear/authorized_keys). using the keys specified in [authorized_keys](image-extras/common/etc/dropbear/authorized_keys).
Once connected, you can read the log with `logread -f`. Once connected, you can read the log with `logread -f`.
@ -110,26 +110,26 @@ your router in the initial setup phase.
## Which file should I flash? ## Which file should I flash?
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-21.02.0-ath79-generic.Linux-x86_64/bin/targets/ath79/generic/```. ```./build/openwrt-imagebuilder-21.02.0-ath79-generic.Linux-x86_64/bin/targets/ath79/generic/```.
In short: In short:
* You need a file with the name ```-factory.bin``` or ```-sysupgrade.bin```. The former is to * You need a file with the name ```-factory.bin``` or ```-sysupgrade.bin```. The former is to
be used when you first install OpenWRT, the latter is when you upgrade an already installed be used when you first install OpenWrt, the latter is when you upgrade an already installed
OpenWRT. OpenWrt.
* You must carefully pick the proper firmware file for your **hardware version**! I advise you * You must carefully pick the proper firmware file for your **hardware version**! I advise you
to look up the wiki page for your hardware on the [OpenWRT wiki](https://openwrt.org), to look up the wiki page for your hardware on the [OpenWrt wiki](https://openwrt.org),
because most of them have a table of the released hardware versions with comments on their because most of them have a table of the released hardware versions with comments on their
status (sometimes new hardware revisions are only supported by the latest OpenWRT, which is status (sometimes new hardware revisions are only supported by the latest OpenWrt, which is
not released yet). not released yet).
## Help! The build has finished but there's no firmware file! ## Help! The build has finished but there's no firmware file!
If the build doesn't yield a firmware file (```*-factory.bin``` and/or ```*-sysupgrade.bin```): If the build doesn't yield a firmware file (```*-factory.bin``` and/or ```*-sysupgrade.bin```):
when there's not enough space in the flash memory of the target device to install everything when there's not enough space in the flash memory of the target device to install everything
then the OpenWRT ImageBuilder prints a hardly visible error into its flow of output and then the OpenWrt ImageBuilder prints a hardly visible error into its flow of output and
silently continues. Look into [build.sh](build.sh#L31) and try to remove some packages silently continues. Look into [build.sh](build.sh#L31) and try to remove some packages
that you can live without. that you can live without.