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https://github.com/LibreELEC/LibreELEC.tv.git
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amlogic: emmctool updates/rework
This commit is contained in:
chewitt
parent
d073de18ec
commit
51eb1849ee
@ -3,95 +3,229 @@
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2019-present Team LibreELEC (https://libreelec.tv)
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BOOT=$(grep /flash /proc/mounts | awk '{print $1}' | sed 's/p[012]//g')
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EMMC=$(ls /dev/mmcblk*rpmb | sed 's/rpmb//g' | head -n 1)
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# ** !!! WARNING !!! WARNING !!! WARNING !!! WARNING !!! WARNING !!! **
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# This script is not supported on generic box devices. If you choose to
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# modify it to run on other hardware and you brick your device you will
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# receive no support to restore your device. You have been warned!
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do_checkboot(){
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case $(dtname) in
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khadas,vim|khadas,vim2|libretech*)
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if [ "$BOOT" = "$EMMC" ]; then
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echo "error: You are booted from the eMMC module!"
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exit 1
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fi
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;;
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*)
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echo "error: Your device is not supported for eMMC boot!"
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exit 1
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;;
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esac
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do_backup(){
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do_umount
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echo "info: compressing ${EMMC} to ${2}, this will take time"
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dd if="${EMMC}" | gzip > of="${2}"
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echo "info: compressing completed"
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}
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do_detect(){
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# used on LibreComputer LePotato/LaFrite where pre-formatted modules
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# must be attached after boot (LibreComputer supports this) else the
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# device always boots to the pre-formatted OS on the module.
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echo "info: rebinding d0074000.mmc"
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echo -n d0074000.mmc > /sys/bus/platform/drivers/meson-gx-mmc/unbind
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echo -n d0074000.mmc > /sys/bus/platform/drivers/meson-gx-mmc/bind
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sleep 1
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parted -s $EMMC unit s print
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parted -s "${EMMC}" unit s print
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}
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do_info(){
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BOOTINFO=$(dd if="${BOOT}" count=2048 2>/dev/null | strings | grep -e '^U-Boot ' | awk '{print $2}')
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EMMCINFO=$(dd if="${EMMC}" count=2048 2>/dev/null | strings | grep -e '^U-Boot ' | awk '{print $2}')
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echo ""
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if [ -n "${BOOTINFO}" ]; then
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echo "info: boot device is $BOOT, U-boot version is ${BOOTINFO}"
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else
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echo "info: boot device is $BOOT"
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fi
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if [ -n "${EMMCINFO}" ]; then
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echo "info: emmc device is $EMMC, U-boot version is ${EMMCINFO}"
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else
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echo "info: emmc device is $EMMC"
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fi
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echo ""
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parted -s "${EMMC}" print
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echo ""
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}
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do_labels(){
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if [ -n "${2}" ] && [ -n "${3}" ]; then
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BOOTLABEL=$(echo "${2}" | awk 'BEGIN { getline; print toupper($0) }')
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DISKLABEL=$(echo "${3}" | awk 'BEGIN { getline; print toupper($0) }')
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else
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BOOTLABEL="EMMC_BOOT"
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DISKLABEL="EMMC_DISK"
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fi
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echo "info: using boot=LABEL=${BOOTLABEL} and disk=LABEL=${DISKLABEL}"
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do_umount
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echo "info: changing label values on partitions"
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fatlabel "${EMMC}p1" "${BOOTLABEL}"
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e2label "${EMMC}p2" "${DISKLABEL}"
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sleep 1
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echo "info: remounting ${EMMC}p1 to /var/media/${BOOTLABEL}"
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mkdir -p "/var/media/${BOOTLABEL}"
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mount "${EMMC}p1" "/var/media/${BOOTLABEL}"
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echo "info: remounting ${EMMC}p2 to /var/media/${DISKLABEL}"
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mkdir -p "/var/media/${DISKLABEL}"
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mount "${EMMC}p2" "/var/media/${DISKLABEL}"
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sleep 1
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echo "info: changing label values in extlinux.conf"
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sed -i "s/boot=LABEL=\w*/boot=LABEL=${BOOTLABEL}/g" "/var/media/${BOOTLABEL}/extlinux/extlinux.conf"
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sed -i "s/disk=LABEL=\w*/disk=LABEL=${DISKLABEL}/g" "/var/media/${BOOTLABEL}/extlinux/extlinux.conf"
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sleep 1
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echo ""
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blkid | grep "${EMMC}p"
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echo ""
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cat "/var/media/${BOOTLABEL}/extlinux/extlinux.conf"
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echo ""
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parted -s $EMMC print
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}
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do_resize(){
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for mount in $(grep ${EMMC}p2 /proc/mounts | awk '{print $1}'); do
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if [ -z "${DISKLABEL}" ]; then
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DISKLABEL=$(blkid | grep "${EMMC}"p2 | awk -F'"' '{print $2}')
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fi
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do_umount
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echo "info: resizing partition ${EMMC}p2 to 100%"
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parted -s -m "${EMMC}" resizepart 2 100% || parted -s -m "${EMMC}" resizepart 2 yes 100%
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sleep 5
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do_umount
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echo "info: checking filesystem"
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e2fsck -f "${EMMC}p2"
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sleep 1
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echo "info: resizing filesystem"
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resize2fs "${EMMC}p2"
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sync
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sleep 1
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echo "info: remounting ${EMMC}p2 to /var/media/${DISKLABEL}"
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mkdir -p "/var/media/${DISKLABEL}"
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mount "${EMMC}p2" "/var/media/${DISKLABEL}"
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sleep 1
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if [ -f "/var/media/${DISKLABEL}/.please_resize_me" ]; then
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rm "/var/media/${DISKLABEL}/.please_resize_me"
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fi
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parted -s "${EMMC}" unit s print
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}
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do_storage(){
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if [ -n "${2}" ]; then
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DISKLABEL=$(echo "${2}" | awk 'BEGIN { getline; print toupper($0) }')
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else
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DISKLABEL="EMMC_DISK"
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fi
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do_umount
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echo "info: converting emmc for /storage use"
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parted -s "${EMMC}" mklabel gpt
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parted -s "${EMMC}" -a min unit s mkpart EMMC_STORAGE ext4 34 100%
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sleep 1
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mkfs.ext4 "${EMMC}p1"
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sleep 1
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e2label "${EMMC}p1" EMMC_STORAGE
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echo "info: changing label values in extlinux.conf"
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mount -o remount,rw /flash
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sleep 1
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sed -i "s/disk=LABEL=\w*/disk=LABEL=${DISKLABEL}/g" "/flash/extlinux/extlinux.conf"
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mount -o remount,ro /flash
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sleep 1
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echo ""
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blkid | grep "${EMMC}p"
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echo ""
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cat "/flash/extlinux/extlinux.conf"
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echo ""
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}
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do_umount(){
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for mount in $(grep "${EMMC}" /proc/mounts | awk '{print $1}'); do
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echo "info: unmounting $mount"
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umount -f "$mount"
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sleep 1
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done
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echo "info: resizing ${EMMC}p2 to 100%"
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parted -s -m $EMMC resizepart 2 100%
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partprobe
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sleep 1
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echo "info: remounting ${EMMC}p2 to /var/media/STORAGE"
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mount ${EMMC}p2 /var/media/STORAGE
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sleep 1
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if [ -f /var/media/STORAGE/.please_resize_me ]; then
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rm /var/media/STORAGE/.please_resize_me
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}
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do_write(){
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do_umount
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if [ "${2: -7}" == ".img.gz" ]; then
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echo "info: writing ${2} to ${EMMC}"
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gunzip -c "${2}" | dd of="${EMMC}" bs=1M
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elif [ "${2: -4}" == ".img" ]; then
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echo "info: writing ${2} to ${EMMC}"
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dd if="${2}" of="${EMMC}" bs=1M
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else
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echo "error: ${2} is not a valid image file!"
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exit 1
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fi
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parted -s $EMMC unit s print
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}
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do_zero(){
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for mount in $(grep ${EMMC}p /proc/mounts | awk '{print $1}'); do
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echo "info: unmounting $mount"
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umount -f "$mount"
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sleep 1
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done
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dd if=/dev/zero of=$EMMC bs=1M
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do_umount
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echo "info: zeroing ${EMMC}, be patient, this will take time"
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dd if="/dev/zero" of="${EMMC}" bs=1M
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echo "info: zeroing complete"
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}
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do_help(){
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echo ""
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echo "usage: emmctool -d : (detect) detects a module attached after boot"
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echo " emmctool -r : (resize) expands the storage partition to 100%"
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echo " emmctool -i : (info) show information about the emmc module"
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echo " emmctool -z : (zero) erases/wipes the module"
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echo " emmctool -h : (help) displays this message"
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echo "usage: emmctool (w)rite <filename> : write <filename>.img/.img.gz to the eMMC module"
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echo " (b)backup <filename> : dump the emmc partition to an .img.gz file"
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echo " (d)etect : detect an eMMC module attached after boot"
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echo " (i)nfo : show info about the eMMC module"
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echo " (l)abels : change eMMC disk labels to ${BOOTLABEL}/${DISKLABEL}"
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echo " (r)esize : resize the storage partition to 100%"
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echo " (s)storage : convert emmc for use as /storage (boot from sdcard)"
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echo " (z)ero : zero (erase/wipe) the eMMC module"
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echo " (h)elp : displays this help message"
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echo ""
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}
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case $1 in
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--detect|-d|detect)
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do_checkboot
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BOOT=$(grep /flash /proc/mounts | awk '{print $1}' | sed 's/p[012]//g')
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EMMC=$(find /dev -name "mmcblk*rpmb" | sed 's/rpmb//g' | head -n 1)
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if [ -z "${EMMC}" ]; then
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echo "error: no emmc module detected!"
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exit 1
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fi
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case $(dtname) in
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friendlyarm*|hardkernel*|khadas*|libretech*|wetek*)
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if [ "${BOOT}" = "${EMMC}" ]; then
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do_info
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echo "Your device is booted from the eMMC module!"
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echo ""
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exit 1
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fi
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;;
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*)
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echo "Your device is not supported!"
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echo ""
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exit 1
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;;
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esac
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case "${1}" in
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backup)
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do_backup "$@"
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;;
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detect|d)
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do_detect
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;;
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--info|-i|info)
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info|i)
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do_info
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;;
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--resize|-r|resize)
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do_checkboot
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labels|l)
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do_labels "$@"
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;;
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resize|r)
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do_resize
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;;
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--zero|-z|zero)
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do_checkboot
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storage|s)
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do_storage "$@"
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;;
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write|w)
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do_write "$@"
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do_resize
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do_labels
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;;
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zero|z)
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do_zero
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;;
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*)
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do_info
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do_help
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;;
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esac
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