READMEs updates for arm32/64

Author: ilg-ul

README-BUILD.md

@@ -233,12 +233,13 @@ The supported Arm architectures are:
 - `armhf` for 32-bit devices
 - `aarch64` for 64-bit devices
 
-The current platform for Arm GNU/Linux production builds is a
-Raspberry Pi OS 10, running on a Raspberry Pi Compute Module 4, with
-8 GB of RAM and 256 GB of fast M.2 SSD. The machine name is `xbbla`.
+The current platform for Arm GNU/Linux production builds is Raspberry Pi OS,
+running on a pair of Raspberry Pi4s, for separate 64/32 binaries.
+The machine names are `xbbla64` and `xbbla32`.
 
 ```sh
-caffeinate ssh xbbla
+caffeinate ssh xbbla64
+caffeinate ssh xbbla32
 ```
 
 Before starting a multi-platform build, check if Docker is started:

README-RELEASE.md

@@ -96,16 +96,20 @@ caffeinate bash ${HOME}/Work/qemu-riscv-xpack.git/scripts/helper/build.sh --deve
 Similarly on the Intel Linux (`xbbli`):
 
 ```sh
-
 bash ${HOME}/Work/qemu-riscv-xpack.git/scripts/helper/build.sh --develop --linux64
 
 bash ${HOME}/Work/qemu-riscv-xpack.git/scripts/helper/build.sh --develop --win64
 ```
 
-And on the Arm Linux (`xbbla`):
+... on the Arm Linux 64-bit (`xbbla64`):
 
 ```sh
 bash ${HOME}/Work/qemu-riscv-xpack.git/scripts/helper/build.sh --develop --arm64
+```
+
+... and on the Arm Linux 32-bit (`xbbla32`):
+
+```sh
 bash ${HOME}/Work/qemu-riscv-xpack.git/scripts/helper/build.sh --develop --arm32
 ```
 
@@ -127,13 +131,14 @@ The automation is provided by GitHub Actions and three self-hosted runners.
 Run the `generate-workflows` to re-generate the
 GitHub workflow files; commit and push if necessary.
 
-- on the macOS machine (`xbbmi`) open ssh sessions to both Linux
-machines (`xbbli` and `xbbla`):
+- on the macOS machine (`xbbmi`) open ssh sessions to the Linux
+machines (`xbbli`, `xbbla64` and `xbbla32`):
 
 ```sh
 caffeinate ssh xbbli
 
-caffeinate ssh xbbla
+caffeinate ssh xbbla64
+caffeinate ssh xbbla32
 ```
 
 Start the runner on all three machines: