device-odroid-hc2: add tools (MR 2320)

The ODROID HC2 device must have its boot partition
on a microSD card while the rootfs can be on an external HDD.
Provide a script to transfer the rootfs and update the U-boot script.

[ci:skip-build] already built successfully in CI

device/testing/device-odroid-hc2/APKBUILD

@@ -3,7 +3,7 @@
 
 pkgname=device-odroid-hc2
 pkgdesc="ODROID HC2"
-pkgver=0.2
+pkgver=0.3
 pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
@@ -16,10 +16,10 @@ depends="linux-odroid-hc2
 	 u-boot-tools
 	"
 makedepends="devicepkg-dev"
-subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
+subpackages="$pkgname-nonfree-firmware:nonfree_firmware $pkgname-tools"
 _commit="42ac93dcfbbb8a08c2bdc02e19f96eb35a81891a"
 install="$pkgname.post-install $pkgname.post-upgrade"
-source="deviceinfo uboot-script.cmd"
+source="deviceinfo uboot-script.cmd install-rootfs-hdd.sh"
 
 build() {
 	devicepkg_build $startdir $pkgname
@@ -47,7 +47,16 @@ nonfree_firmware() {
 	mkdir "$subpkgdir"
 }
 
+tools() {
+	pkgdesc="ODROID HC2 tools"
+	depends="rsync e2fsprogs-extra"
+	mkdir "$subpkgdir"
+	install -Dm744 "$srcdir"/install-rootfs-hdd.sh \
+		"$pkgdir"/usr/bin/install-rootfs-hdd
+}
+
 sha512sums="
-90afdace4ad938ed69747d3b51ac1678bc325cb4e7234ac4eeded7b6fa79f10bd88d15ebfc6f20f0a9252c48008288a489cb99751ae6d2cdb12f289b9154a9f3  deviceinfo
-83a4bcc34d20c2e5e6f1c3412c291baa90a8137df7925c02d8e46d922d45615cc957d79d37a23982bed7e1cfa92f2be22fa5f11cc59d3706b79ba62a2d550263  uboot-script.cmd
+d02702884d47c2c6b98f1ec194fc3a11b2c6559d416c112d41ddecfbbd84f0706adfc72e13e9943f130e548d987aa7d151f4f416443d15b7dff2375d4d067144  deviceinfo
+48e76599c21dd0df595ad2f5a9fe9f71962b5c1f631c91ce6f9904fe393ee7bf7c0d71df54f08bdf7fc4ed9176d36abc2f887781159304f862bf996f2157a5bd  uboot-script.cmd
+8273be5a8c5a7b9a27ae91a1581ca2d247d0fb45e24e25e46ba8272955d7fce31c62562c3fae402f6a66918c9c61d838de692cca11eea3cdfde6a91f478f2955  install-rootfs-hdd.sh
 "

device/testing/device-odroid-hc2/deviceinfo

@@ -14,6 +14,7 @@ deviceinfo_no_framebuffer="true"
 deviceinfo_generate_legacy_uboot_initfs="true"
 deviceinfo_getty="ttySAC2;115200"
 deviceinfo_disable_dhcpd="true"
+deviceinfo_modules_initfs="uas usb-storage scsi_mod sd_mod t10_pi"
 
 # Device related
 deviceinfo_gpu_accelerated="true"

device/testing/device-odroid-hc2/install-rootfs-hdd.sh

@@ -0,0 +1,54 @@
+#!/bin/sh
+set -e
+
+MOUNT_POINT=/mnt/hdd
+MMC_ROOT_PARTITION=/dev/mmcblk0p2
+
+echo "### Move rootfs to external HDD ###"
+echo "This script requires root permissions!"
+echo "This action is inreversible without reflashing your device!"
+echo "Are you sure you want to continue? [y/N]"
+read -n 1 ANSWER
+echo ""
+
+if [ "$ANSWER" != "y" ]; then
+    echo "Operation aborted"
+    exit 1
+fi
+
+echo "Which partition should be used as rootfs?:"
+read HDD_ROOT_PARTITION
+echo ""
+
+echo "### Copying rootfs to partition $HDD_ROOT_PARTITION ###"
+
+# Mount partition
+echo "Trying to unmount $HDD_ROOT_PARTITION"
+umount $HDD_ROOT_PARTITION || true  # may fail
+echo "Mounting $HDD_ROOT_PARTITION at $MOUNT_POINT"
+mkdir -p $MOUNT_POINT
+mount $HDD_ROOT_PARTITION $MOUNT_POINT
+
+# Copy rootfs
+echo "Copying rootfs... This can take a while."
+rsync \
+    -aAXx \
+    --exclude={"/dev/*","/proc/*","/sys/*","/tmp/*","/run/*","/mnt/*","/media/*","/lost+found"} \
+    / \
+    $MOUNT_POINT
+
+# Verify all files are copied
+rsync \
+    -aAXx \
+    --exclude={"/dev/*","/proc/*","/sys/*","/tmp/*","/run/*","/mnt/*","/media/*","/lost+found"} \
+    / \
+    $MOUNT_POINT
+sync
+echo "Rootfs successfully copied!"
+
+# pmOS initfs looks for rootfs by label, rename partitions
+echo "Renaming partitions"
+e2label $MMC_ROOT_PARTITION pmOS_root_old
+e2label $HDD_ROOT_PARTITION pmOS_root
+
+echo "Rootfs moved to external HDD, you must reboot NOW!"

device/testing/device-odroid-hc2/uboot-script.cmd

@@ -8,7 +8,7 @@ setenv dtb_file "exynos5422-odroidhc1.dtb"
 printenv
 
 echo Setting bootargs
-setenv bootargs init=/init.sh rw console=tty0 console=ttySAC2,115200 panic=10 consoleblank=0 loglevel=9 cma=256M PMOS_NO_OUTPUT_REDIRECT PMOS_FORCE_PARTITION_RESIZE pmos_boot=/dev/mmcblk0p1 pmos_root=/dev/mmcblk0p2
+setenv bootargs init=/init.sh rw console=tty0 console=ttySAC2,115200 panic=10 consoleblank=0 loglevel=9 cma=256M PMOS_NO_OUTPUT_REDIRECT PMOS_FORCE_PARTITION_RESIZE
 
 echo Loading Kernel
 load mmc ${mmcbootdev}:${mmcbootpart} ${kernel_addr_r} ${kernel_image}