Script to tar up mkroot output for web page, with top level README.

mkroot/README.root

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+Use ./run-qemu.sh to boot system image to a shell prompt, "exit" when done.
+
+Additional arguments to run-qemu.sh are QEMU arguments,
+$KARGS contains additional linux kernel arguments. For example:
+
+  KARGS=quiet ./run-qemu.sh -hda docs/linux-fullconfig
+  # cat /dev/?da
+  # exit
+
+To extract the root filesystem from cpio.gz and chroot into it
+
+  ( mkdir fs && cd fs && zcat ../initramfs.cpio.gz | cpio -i -d -H newc )
+  chroot fs /init
+
+To recreate the initramfs.cpio.gz from fs directory
+
+  ( cd fs && find . -printf '%P\n' | cpio -o -H newc -R +0:+0 | gzip ) \
+    > initramfs.cpio.gz

mkroot/tar-for-web.sh

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+#!/bin/bash
+
+# tar up completed system images to send to website, with READMEs
+
+for i in root/*/run-qemu.sh
+do
+  i=${i%/run-qemu.sh} j=${i#root/}
+  [ ! -e "$i" ] && continue
+  # Add README, don't include "fs" dir (you can extract it from cpio.gz)
+  cp mkroot/README.root $i/docs/README &&
+  tar cvzfC $i.tgz root --exclude=fs $j || break
+done
+
+# Add top level README
+KVERS=$(toybox sed -n '3s@# Linux/[^ ]* \(.*\) Kernel Configuration@\1@p' root/*/docs/linux-fullconfig)
+cat > root/README << EOF
+Bootable system images created by:
+
+  mkroot/mkroot.sh LINUX=~/linux CROSS=allnonstop
+
+Each system image is built from two packages: toybox and Linux.
+Run the ./qemu-*.sh script in the tarball to boot the system
+to a shell prompt under qemu. Run the "exit" command to shut down the
+virtual system and exit the emulator.
+
+See https://landley.net/toybox/FAQ.html#mkroot for details.
+
+Built from mkroot $(git describe --tags), and Linux $KVERS with patches in linux-patches/
+EOF
+
+# scp root/*.tgz root/README website:dir