https://wiki.ubuntuusers.de/Ubuntu_Touch/Sicherung_und_Wiederherstellung/
Wie erstellt man denn z.B. die SYSTEMDATEI.img für das bq E4.5?
Ich habe ein Skript, zur Installation, für das MX4 gefunden:
#!/bin/bash
## This script creates Ubuntu Touch system.img + boot.img for chinese MX4 dual-boot
## ideas taken from http://humpolec.ubuntu.com/latest/dualboot.sh
FORCE_DOWNLOAD=0
CHANNEL=${1-stable/meizu.en} ## "stable/meizu.en" or "stable/meizu.zh" - you can pass $1
DEVICE='arale'
SYSTEM_IMG_SIZE=1800 ## in megabytes
RELEASE_DIR=`date +%Y%m%d` ## it's changed in download_latest_ota_full_release()
download_file() {
DOWNLOAD_URL=$1
FILENAME=$2
TARGET_SIZE=$3
SIZE=1
# check if file should be downloaded at all
FILE_SIZE=$(ls -al $2 | awk '{ print $5}')
if [[ $FORCE_DOWNLOAD == 0 ]] && [[ $FILE_SIZE -ge $TARGET_SIZE ]]; then
echo "Skipping download, file already downloaded"
return
fi
# check downloaded file size, this often fails, so retry. Expected size is TARGET_SIZE
while [[ $TARGET_SIZE -gt $SIZE ]]
do
curl $DOWNLOAD_URL > $FILENAME
SIZE=$(ls -la $FILENAME | awk '{ print $5}')
echo "Downloaded file has size: $SIZE"
done
}
download_latest_ota_full_release() {
echo "Downloading latest Ubuntu touch release for $CHANNEL"
BASE_SERVER_URL="http://system-image.ubuntu.com"
CHANNEL_URL="$BASE_SERVER_URL/ubuntu-touch/$CHANNEL/$DEVICE/index.json"
echo "Selected channel: $CHANNEL_URL"
CHANNEL_PACKAGES=$(curl $CHANNEL_URL | python -c "import json
import sys
data = json.load(sys.stdin)
count = len(data['images'])
for i in range(count -1,0,-1):
if data['images'][i]['type'] == 'full':
s = data['images'][i]['version_detail']
version_detail = dict(item.split('=') for item in s.split(','))
print \"%s-%s\" % (version_detail['ubuntu'],version_detail['tag'])
pCount = len(data['images'][i]['files'])
for ii in range(0, pCount):
print data['images'][i]['files'][ii]['size'], data['images'][i]['files'][ii]['path']
break")
i=0
while read -r line; do
i=$[$i+1]
if [ $i == 1 ]; then RELEASE_DIR=$line; continue; fi
SIZE=$(echo $line | awk '{ print $1}')
PACKAGE=$(echo $line | awk '{ print $2}')
echo $PACKAGE
download_file $BASE_SERVER_URL$PACKAGE $(basename $PACKAGE) $SIZE
echo "Unpacking $(basename $PACKAGE)"
sudo tar xf "$(basename $PACKAGE)"
done <<< "$CHANNEL_PACKAGES"
}
make_empty_system_img() {
echo "Making system.img"
dd if=/dev/zero of=system.img bs=1M count=$SYSTEM_IMG_SIZE
mkfs.ext4 -F -m 0 system.img
#tune2fs -r 0 system.img
mkdir -p system
echo "Mounting system.img as a loop-back device. Need sudo."
sudo mount system.img system -o loop
}
finalize_system_img() {
cp partitions/boot.img ./
sudo rm -rf blobs partitions device-build
echo "Unmounting system.img"
sudo umount system
e2fsck -f system.img
## -M - minimize system.img size if needed. But you'll lose write access
#resize2fs -M system.img
#resize2fs system.img 1800M
rm -rf ./system
echo "Moving system.img and boot.img to $RELEASE_DIR"
mkdir -p $RELEASE_DIR
mv -f *.img $RELEASE_DIR/
}
make_empty_system_img
download_latest_ota_full_release
finalize_system_img
Aber passt 1.8 GB auch für das, z.B., bq E4.5?
Selbst wenn, wie wird das gesichert? 😕