Difference between revisions of "EFlasher"

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[[EFlasher/zh|查看中文]]
 
[[EFlasher/zh|查看中文]]
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==Introduction to eFlasher==
 
==Introduction to eFlasher==
Line 20: Line 7:
 
1) eflasher-gui: a GUI based eFlasher utility. When a board is connected to an LCD or HDMI monitor users can use this utility to install an OS easily;<br />
 
1) eflasher-gui: a GUI based eFlasher utility. When a board is connected to an LCD or HDMI monitor users can use this utility to install an OS easily;<br />
 
2) eflasher-console: a commandline based eFlasher utility. When a board is connected to a serial terminal or logged in with SSH users can use it to install an OS;<br />
 
2) eflasher-console: a commandline based eFlasher utility. When a board is connected to a serial terminal or logged in with SSH users can use it to install an OS;<br />
 +
<br />
  
 
==Install eFlasher==
 
==Install eFlasher==
Line 31: Line 19:
 
* Step 3: Start eFlasher
 
* Step 3: Start eFlasher
 
Insert this SD card to your board, press and hold the "BOOT" button, power on your board.
 
Insert this SD card to your board, press and hold the "BOOT" button, power on your board.
 +
 +
== Update eflasher to the latest version ==
 +
Execute the following command on the development board:
 +
<syntaxhighlight lang="bash">
 +
git clone https://github.com/friendlyarm/eflasher-updater
 +
cd eflasher-updater/
 +
./update.sh
 +
</syntaxhighlight>
  
 
== Login to the eFlasher system ==
 
== Login to the eFlasher system ==
Line 43: Line 39:
  
 
==Commandline Based eFlasher==
 
==Commandline Based eFlasher==
 +
===Directly install the specified OS===
 +
Show help:
 +
<pre>
 +
# eflasher --help
 +
-------------------------------------------------------
 +
USAGE: eflasher [-i, --install <arg>]
 +
 +
OPTIONAL:
 +
-i, --install <path>:  Install OS to eMMC without UI operation
 +
-r, --restore <file>:  Restore backup file to eMMC without UI operation
 +
-e, --exclude <files>: Ignore certain files, multiple files separated by commas
 +
--low-format:          Low format the flash before burning
 +
--auto-exit:          Automatically exit eflahser after burning or restoring
 +
--disable-overlayfs:  Disable overlay filesystem
 +
-c, --conf <arg>:      Set eflasher configuration file
 +
-l, --list-devices:    List the supported board models
 +
-v, --version:        Output version information
 +
-h, --help:            Show this usage
 +
-g, --gui:            Start eflasher gui
 +
</pre>
 +
Directly install the specified OS:
 +
<pre>
 +
# eflasher -i /mnt/sdcard/friendlycore-xenial_4.14_armhf
 +
Using config file:  "/tmp/eflasher.conf"
 +
-------------------------------------------------------
 +
>>friendlycore-xenial_4.14_armhf
 +
Ready to Go with FriendlyCore,Total size: 1.10 GB,
 +
Installing FriendlyCore ..., , ,
 +
Finish!,Speed: 20.71 MB/s
 +
</pre>
 +
===Wizard mode===
 
If your board is not connected to any display device you can login your board via SSH and start the eflahser by running "eflasher". Here is what you expect to observe:<br />
 
If your board is not connected to any display device you can login your board via SSH and start the eflahser by running "eflasher". Here is what you expect to observe:<br />
−
::[[File:Eflasher-console.png| frameless|500px|Eflasher-console]]
+
<pre>
−
<br />
+
----------------------------------------------------------------------
 +
  EFlasher v1.2 b190111 running on NanoPC-T4
 +
    Doc: http://wiki.friendlyelec.com/wiki/index.php/EFlasher
 +
    eMMC: 14.56 GB
 +
----------------------------------------------------------------------
 +
  # Select an OS to install:
 +
    1) Android 8
 +
 
 +
  # Select your backup target device:
 +
    tf) [*] TF card  (/dev/mmcblk0p1 - 4.27 GB free - 5.67 GB total - fuseblk)
 +
    usb) [ ] USB disk  (<none>)
 +
 
 +
  # Backup eMMC flash to TF card:
 +
    Not enough free disk space on your TF card
 +
 
 +
  # Restore eMMC flash from backup file:
 +
    No backup files found
 +
 
 +
  # Configure automatic job:
 +
    aui) Automatic installing (Curr:Off)
 +
    aur) Automatic restoring (Curr:Off)
 +
 
 +
  # Format drive
 +
    ftf) Format TF card back to original size
 +
----------------------------------------------------------------------
 +
>>> Enter an option (1/tf/usb/aui/aur/ftf) :
 +
</pre>
  
 
==Automate OS Installation at System Startup==
 
==Automate OS Installation at System Startup==
Line 58: Line 111:
 
* No.3:after your board starts open a terminal and create or edit "/mnt/sdcard/eflasher.conf" and type the lines presented in No.2 .<br />
 
* No.3:after your board starts open a terminal and create or edit "/mnt/sdcard/eflasher.conf" and type the lines presented in No.2 .<br />
  
−
== Automatically exit EFlasher after installing ==
+
== Do something else after burning or restoring the system ==
 
You may want to do something extra after the installing system is finished, such as lighting up an LED, you can modify the /opt/run-eflasher.sh script in the beginning of the line "./eflasher-gui" to add code, such as the following example, after the installing is completed, set a GPIO pin:
 
You may want to do something extra after the installing system is finished, such as lighting up an LED, you can modify the /opt/run-eflasher.sh script in the beginning of the line "./eflasher-gui" to add code, such as the following example, after the installing is completed, set a GPIO pin:
 
<syntaxhighlight lang="bash">
 
<syntaxhighlight lang="bash">
Line 66: Line 119:
 
echo 0 > /sys/class/gpio/gpio13/value
 
echo 0 > /sys/class/gpio/gpio13/value
 
echo 13 > /sys/class/gpio/unexport
 
echo 13 > /sys/class/gpio/unexport
 +
</syntaxhighlight>
 +
The following script demonstrates writing the cpu id to the /etc/cpuid.txt file of the eMMC system after burning the system on the S5P4418/S5P6818 platform:
 +
<syntaxhighlight lang="bash">
 +
./eflasher-gui -qws >/dev/null 2>&1
 +
partprobe /dev/mmcblk1
 +
mount /dev/mmcblk1p2 /media/
 +
cat /sys/devices/platform/cpu/uuid > /media/etc/cpuid.txt
 +
umount /media/
 
</syntaxhighlight>
 
</syntaxhighlight>
 
In order for the above script to work properly, we also need to set the eflasher-gui to automatically exit after the installing is completed. The following settings are required：<br />
 
In order for the above script to work properly, we also need to set the eflasher-gui to automatically exit after the installing is completed. The following settings are required：<br />
Line 74: Line 135:
 
autoExit=true
 
autoExit=true
 
</syntaxhighlight>
 
</syntaxhighlight>
 +
The autoStart field specifies that the specified system will be burned automatically without interaction, if no LCD is connected, the burn status can be identified by the LED burn, by default, the green LED flashes to indicate that it is burning.
 
<br />
 
<br />
  
Line 85: Line 147:
 
<br />
 
<br />
  
−
===Backup & Restore Data with GUI Utility===
+
=== System Backup and Restore via GUI ===
−
On eflasher's main window click on "Backup and Restore" and proceed with prompts:<br />
+
 
−
::[[File:Eflasher-backup-restore.jpg| frameless|800px|Eflasher-console]]<br />
+
On EFlasher's main window click on "Backup and Restore" and proceed with the prompts:<br />
 +
::[[File:eflasher_index.png| frameless|800px|eflasher_index]]<br />
 
<br />
 
<br />
 +
 +
====Select Location for Backup Files====
 +
You can backup your files to either a TF card or a USB drive.
 +
=====Backup Files to TF Card=====
 +
::[[File:eflasher_backup_tf.png| frameless|800px|eflasher_backup_tf]]<br />
 +
The capacity of your TF card should be at least twice that of the eMMC on your board. For instance if your eMMC is 8G you should get a TF card with at least 16G.<br />
 +
By default the capacity of a TF card with at least 8G may not be fully recognized therefore you need to format such a card. Click on the "Format TF card back to original size" button to format the card.<br />
 +
* Click on "Backup eMMC Flash" to backup all the files in the eMMC;
 +
* Click on "Restore eMMC Flash from backup file" to write all the files to the eMMC;
 +
 +
=====Backup Files to USB Drive=====
 +
::[[File:eflasher_backup_udisk.png| frameless|800px|eflasher_backup_udisk]]<br />
 +
We suggest you format your USB drive to "ext4/exfat/ntfs". If it is not click on the "Re-layout and format USB Drive" button on the GUI to format the drive.Attention:formatting a USB drive will remove all its existing data.
 +
* Click on "Backup eMMC Flash" to backup all the files in the eMMC;
 +
* Click on "Restore eMMC Flash from backup file" to write all the files to the eMMC;
 +
 +
=====Backup=====
 +
Click on the "Backup eMMC Flash" button, select a location for your backup file whose format extention will be ".raw" and start to backup:<br />
 +
::[[File:eflasher_backup.png| frameless|800px|eflasher_backup]]<br />
 +
 +
=====Restore=====
 +
Click on the "Restore eMMC Flash from backup file" button, select a ".raw" file and start to restore:<br />
 +
::[[File:eflasher_restore.png| frameless|800px|eflasher_restore]]<br />
  
 
===Backup & Restore Data with Commandline Utility===
 
===Backup & Restore Data with Commandline Utility===
Line 97: Line 183:
  
 
You will see the following menu:
 
You will see the following menu:
−
<syntaxhighlight lang="bash">
+
<pre>
 
----------------------------------------------------------------------
 
----------------------------------------------------------------------
−
   eflasher-console running on NanoPC-T3
+
   EFlasher v1.2 b190111 running on NanoPC-T4
 +
    Doc: http://wiki.friendlyelec.com/wiki/index.php/EFlasher
 +
    eMMC: 14.56 GB
 
----------------------------------------------------------------------
 
----------------------------------------------------------------------
−
   Select an OS to Install:
+
   # Select an OS to install:
−
     1) UbuntuCore arm64 with QtE
+
     1) Android 8
 
    
 
    
−
   Backup eMMC Flash to removable disk:
+
   # Select your backup target device:
−
    bk) Start backup, use "nanopc-t3-emmc.raw" as the file name
+
    tf) [*] TF card  (/dev/mmcblk0p1 - 4.27 GB free - 5.67 GB total - fuseblk)
 +
    usb) [ ] USB disk  (<none>)
 
    
 
    
−
   Restore eMMC flash from backup file:
+
   # Backup eMMC flash to TF card:
−
     No backup file was found
+
    Not enough free disk space on your TF card
 +
 
 +
  # Restore eMMC flash from backup file:
 +
     No backup files found
 +
 
 +
  # Configure automatic job:
 +
    aui) Automatic installing (Curr:Off)
 +
    aur) Automatic restoring (Curr:Off)
 +
 
 +
  # Format drive
 +
    ftf) Format TF card back to original size
 
----------------------------------------------------------------------
 
----------------------------------------------------------------------
−
>>> Please choose (1/bk) :
+
>>> Enter an option (1/tf/usb/aui/aur/ftf) :
−
bk
+
</pre>
−
</syntaxhighlight>
+
 
 +
===Select the storage location of the backup file ===
 +
You can place the backup file on a TF card, or a USB storage device, using the tf and usb commands to switch.
 +
====Backup to TF card ====
 +
Your TF card size should be greater than or equal to twice the eMMC size. For example, if eMMC is 8G, you should prepare a 16G TF card. <br />
 +
By default, TF cards above 8G do not use all the space in the eFlasher system. You need to do a format once, use the ftf command on the menu. <br />
 +
====Backup to USB storage device ====
 +
The USB storage device is preferably in ext4/exfat/ntfs format. If not, you can use the fud on the menu to format the USB storage device once. Note that this operation will lose all data.
 +
====Start backup ====
 
Type "bk" and enter to start data backup. All data will be saved in a file with the "raw" extension.<br />
 
Type "bk" and enter to start data backup. All data will be saved in a file with the "raw" extension.<br />
 
<syntaxhighlight lang="bash">
 
<syntaxhighlight lang="bash">
Line 144: Line 251:
 
root@NanoPC-T3:/mnt/udisk/nanopc-t3-emmc.raw.d#
 
root@NanoPC-T3:/mnt/udisk/nanopc-t3-emmc.raw.d#
 
</syntaxhighlight>
 
</syntaxhighlight>
 +
 +
(Note that this feature does not work when using the auto-restoring feature)
 +
 +
=== Automatically restore the specified backup when booting ===
 +
You can automate restoring with eFlasher at system startup in two ways:<br />
 +
* No.1：On the GUI, enter the Backup and restore UI, first select the storage device where the backup file is located, select TF card or USB disk, then click "Turn on Automatic restoring", and select the file to be restored.<br />
 +
* No.2:  Use the notepad+ text editor to create a new file called eflasher.conf in the root directory of the storage device (or open an existing "eflasher.conf"). The sample content is as follows:<br />
 +
<syntaxhighlight lang="bash">
 +
[General]
 +
autoStart=/mnt/sdcard/nanopct3-backup-20190101.raw
 +
</syntaxhighlight>
 +
/mnt/sdcard/ indicates TF card, /mnt/udisk indicates USB disk.
  
 
==Make Your Own eFlasher==
 
==Make Your Own eFlasher==
Line 194: Line 313:
  
 
===Make eflasher File with Your OS===
 
===Make eflasher File with Your OS===
−
Note: this only applies for 4418 and 6818 based boards<br />
+
Refer to [[How to make your own SD-bootable ROM]]
−
Here are the steps for making an eFlasher card with UbuntuCore for 4418 based boards:<br />
+
−
<syntaxhighlight lang="bash">
+
−
git clone https://github.com/friendlyarm/sd-fuse_nanopi2.git
+
−
cd sd-fuse_nanopi2
+
−
sudo ./mkimage.sh eflasher
+
−
DEV=`sudo losetup -f`
+
−
sudo losetup ${DEV} s5p4418-eflasher-sd8g-$(date +%Y%m%d).img
+
−
</syntaxhighlight>
+
−
If you make an eflasher card for 6818 based boards you need to change "sd-fuse_nanopi2.git" to "sd-fuse_nanopi3.git" and rename "s5p4418" to "s6p6818".<br/><br/>
+
−
After these commands are successfully run an eflasher image named "s5p4418-eflasher-sd8g-YYYYMMDD.img" will be generated. But this image doesn't contain an OS file. Running the following commands will generate a UbuntuCore image file. You can use your OS image's file name to replace the "core-qte-images.tfz" to the following commands to insert your OS to the eflasher file:
+
−
<syntaxhighlight lang="bash">
+
−
sudo partprobe ${DEV}
+
−
sudo mkfs.vfat ${DEV}p1 -n FRIENDLYARM
+
−
sudo mkdir -p /mnt/fat
+
−
sudo mount -t vfat ${DEV}p1 /mnt/fat
+
−
sudo wget -qO- http://112.124.9.243/dvdfiles/S5P4418/images-for-eflasher/core-qte-images.tgz | tar xvz -C /mnt/fat
+
−
sudo umount /mnt/fat
+
−
sudo losetup -d ${DEV}
+
−
</syntaxhighlight>
+
−
For 6818 based boards change "http://112.124.9.243/dvdfiles/S5P4418" to "http://112.124.9.243/dvdfiles/S5P6818".<br /><br />
+
−
 
+
−
After these commands are successfully run an "s5p4418-eflasher-sd8g-YYYYMMDD.img" file with a Ubuntu core OS image will be generated. You can use the "dd" command to flash it to an SD card and flash your OS to your board's eMMC.
+
−
 
+
−
===Make Your Own OS Image===
+
−
====Make Android Image for 4418/6818====
+
−
First of all you need to compile your Android source code. After compilation is finished enter the "out/target/product/XXXXX" directory ("XXXXX" stands for a product's name. For example 4418 SoC's name is "nanopi2" and 6818 SoC's name is "nanopi3") and replace the following file with the one under the Android directory of the FAT section of your SD card:
+
−
::[[File:Eflasher-replace-files.png| frameless|800px|Eflasher-replace-files.png]]
+
−
 
+
−
====Make Linux Image for 4418/6818/H3/H5====
+
−
Refer to: [[Assembling_the_SD_card_image_yourself|Assembling_the_SD_card_image_yourself]]
+
−
 
+
−
<!---
+
−
====Make Linux Image for 4418/6818====
+
−
You need to make a boot.img file for the boot section and a rootfs.img file for the rootfs section and replace the corresponding files in the eFlasher.<br />
+
−
1) Download https://github.com/friendlyarm/debian_nanopi2 ;<br />
+
−
2) Copy the files under the boot section of your SD card to "debian_nanopi2/boot" and the files under the rootfs section of your SD card to "debian_nanopi2/rootfs"<br />
+
−
Make necessary changes in the files under the boot section and rootfs section accordingly.<br />
+
−
We recommend to delete the "etc/fs.resized" file under the rootfs directory otherwise this section will not be automatically extended.<br/>
+
−
3) Use the make_ext4fs utility under the "debian_nanopi2" directory to make an img file:<br />
+
−
./tools/make_ext4fs -s -l 67108864 -a root -L boot boot.img boot<br />
+
−
./tools/make_ext4fs -s -l 2097152000 -a root -L rootfs rootfs.img rootfs<br />
+
−
4) Move your newly generated boot.img and rootfs.img files to the core-qte directory under the FAT section of eflasher to replace corresponding files and this will be your new eFlasher.<br />
+
−
 
+
−
====Make Linux Image for H3/H5====
+
−
You need to make a boot.img file for the boot section and a rootfs.img file for the rootfs section and replace the corresponding files in the eFlasher.<br/>
+
−
1) Download: [http://wiki.friendlyarm.com/wiki/index.php/File:Eflasher-build-tools.zip EFlasher-build-tools];<br />
+
−
2) Make the whole rootfs section an ext4 formatted img file:<br />
+
−
<syntaxhighlight lang="bash">
+
−
$ ./make_ext4fs -s -l 2097152000 -a root -L /SD/rootfs rootfs.img rootfs
+
−
</syntaxhighlight>
+
−
-l specifies the size of an img file in the unit of Byte, 2097152000 Byte=2000MB. This number must be larger than the size of the "/SD/rootfs" directory.<br />
+
−
3) Make the whole boot section a FAT formatted img file.<br />
+
−
<syntaxhighlight lang="bash">
+
−
$ ./build-boot-fat.sh boot.img /SD/boot 40
+
−
</syntaxhighlight>
+
−
40 means the size of boot.img is 40M.<br />
+
−
4) Move your newly generated boot.img and rootfs.img files to the FAT section of eflasher-ROM to replace corresponding files and this will be your new eFlasher.<br />
+
−
--->
+
  
 
=== Connect WiKi in the EFlasher system ===
 
=== Connect WiKi in the EFlasher system ===
Line 267: Line 328:
 
</syntaxhighlight>
 
</syntaxhighlight>
 
If the WiFi route does not set a password, set key_mgmt to NONE, delete this line: psk=.
 
If the WiFi route does not set a password, set key_mgmt to NONE, delete this line: psk=.
 +
 +
 +
== Change IP address ==
 +
For faster startup speed, we set the eflasher to  static ip address: 192.168.1.231, <br />
 +
<br />
 +
If you want to change to dhcp, you can modify this file:<br />
 +
/etc/network/interfaces.d/eth0<br />
 +
<br />
 +
Change the contents of this file to:<br />
 +
<syntaxhighlight lang="bash">
 +
auto eth0
 +
iface eth0 inet dhcp
 +
</syntaxhighlight>
  
 
==Update Log==
 
==Update Log==

Latest revision as of 07:17, 21 February 2022

查看中文

1 Introduction to eFlasher

The eFlasher (eMMC-flasher) utility is released by FriendlyElec for users to install an OS image on a FriendlyElec board's eMMC easily.
The eFlasher utility provides users with a GUI with multiple OS options.
The eFlasher utility has two versions: eflasher-gui and eflasher-console:
1) eflasher-gui: a GUI based eFlasher utility. When a board is connected to an LCD or HDMI monitor users can use this utility to install an OS easily;
2) eflasher-console: a commandline based eFlasher utility. When a board is connected to a serial terminal or logged in with SSH users can use it to install an OS;

2 Install eFlasher

  • Step 1: download an eflasher installation package

Go to the wiki page of the nano board you bought and download an eflasher file named as :XXXX-eflasher-YYYYMMDD-full.img.7z(the "XXXX" is the board type for the board you bought and "YYYYMMDD" is the release date of that eflasher file)
This package contains all the image files released by FriendlyElec such as Debian, Android5, Android4.4 and Ubuntu core(different boards may be provided with different OS image files)
Download a XXXX-eflasher-YYYYMMDD-full.img.7z file to a PC host and make an installation SD card with a windows utility: win32diskimager.rar

  • Step 2: make an installation SD card with eflasher

Extract the eflasher file and you will get an ".img" file.Insert an SD card(at least 8G) into a Windows PC and run the win32diskimager utility as administrator. On the utility's main window select your SD card's drive, the wanted image file and click on "write" to start flashing the SD card.
You can use "dd" under a Linux PC to flash this ".img" to your SD card too

  • Step 3: Start eFlasher

Insert this SD card to your board, press and hold the "BOOT" button, power on your board.

3 Update eflasher to the latest version

Execute the following command on the development board: 

git clone https://github.com/friendlyarm/eflasher-updater
cd eflasher-updater/
./update.sh

4 Login to the eFlasher system

Log in with the following account in command line:
User Name: root
Password: fa

5 GUI Based eFlasher

By default after eFlash is started the GUI based version will be started. If your board is connected to an LCD or HDMI monitor you will see the following screen:

Eflasher-gui

Select your wanted OS to start installation.

6 Commandline Based eFlasher

6.1 Directly install the specified OS

Show help: 

# eflasher --help
-------------------------------------------------------
USAGE: eflasher [-i, --install <arg>]

OPTIONAL:
-i, --install <path>:  Install OS to eMMC without UI operation
-r, --restore <file>:  Restore backup file to eMMC without UI operation
-e, --exclude <files>: Ignore certain files, multiple files separated by commas
--low-format:          Low format the flash before burning
--auto-exit:           Automatically exit eflahser after burning or restoring
--disable-overlayfs:   Disable overlay filesystem
-c, --conf <arg>:      Set eflasher configuration file
-l, --list-devices:    List the supported board models
-v, --version:         Output version information
-h, --help:            Show this usage
-g, --gui:             Start eflasher gui

Directly install the specified OS: 

# eflasher -i /mnt/sdcard/friendlycore-xenial_4.14_armhf
Using config file:  "/tmp/eflasher.conf"
-------------------------------------------------------
>>friendlycore-xenial_4.14_armhf
Ready to Go with FriendlyCore,Total size: 1.10 GB,
Installing FriendlyCore ..., , ,
Finish!,Speed: 20.71 MB/s

6.2 Wizard mode

If your board is not connected to any display device you can login your board via SSH and start the eflahser by running "eflasher". Here is what you expect to observe:

----------------------------------------------------------------------
  EFlasher v1.2 b190111 running on NanoPC-T4
    Doc: http://wiki.friendlyelec.com/wiki/index.php/EFlasher
    eMMC: 14.56 GB
----------------------------------------------------------------------
  # Select an OS to install:
    1) Android 8
   
  # Select your backup target device:
     tf) [*] TF card  (/dev/mmcblk0p1 - 4.27 GB free - 5.67 GB total - fuseblk)
    usb) [ ] USB disk  (<none>)
   
  # Backup eMMC flash to TF card:
    Not enough free disk space on your TF card
   
  # Restore eMMC flash from backup file:
    No backup files found
   
  # Configure automatic job:
    aui) Automatic installing (Curr:Off)
    aur) Automatic restoring (Curr:Off)
   
  # Format drive
    ftf) Format TF card back to original size
----------------------------------------------------------------------
>>> Enter an option (1/tf/usb/aui/aur/ftf) :

7 Automate OS Installation at System Startup

You can automate OS installation with eFlasher at system startup in three ways:

  • No.1:on the GUI based eFlasher select your wanted OS and check the "Start automatically at startup" option on the "Ready to Go" window.
  • No.2:mount an SD card to a Windows PC and create an "eflasher.conf" file with notepad on the FAT section of your SD card(or open an existing "eflasher.conf") and type the following lines if you want to install a Debian OS:
[General]
autoStart=/mnt/sdcard/debian

The "autoStart" field specifies the path to your ROM. In this example the ROM is a Debian OS image file.

  • No.3:after your board starts open a terminal and create or edit "/mnt/sdcard/eflasher.conf" and type the lines presented in No.2 .

8 Do something else after burning or restoring the system

You may want to do something extra after the installing system is finished, such as lighting up an LED, you can modify the /opt/run-eflasher.sh script in the beginning of the line "./eflasher-gui" to add code, such as the following example, after the installing is completed, set a GPIO pin: 

./eflasher-gui -qws >/dev/null 2>&1
echo 13 > /sys/class/gpio/export 
echo out > /sys/class/gpio/gpio13/direction 
echo 0 > /sys/class/gpio/gpio13/value
echo 13 > /sys/class/gpio/unexport

The following script demonstrates writing the cpu id to the /etc/cpuid.txt file of the eMMC system after burning the system on the S5P4418/S5P6818 platform: 

./eflasher-gui -qws >/dev/null 2>&1
partprobe /dev/mmcblk1
mount /dev/mmcblk1p2 /media/
cat /sys/devices/platform/cpu/uuid > /media/etc/cpuid.txt
umount /media/

In order for the above script to work properly, we also need to set the eflasher-gui to automatically exit after the installing is completed. The following settings are required：
Edit and create a new file called eflasher.conf with the notepad+ text editor on the Fat partition of the SD card, set the autoExit field to True：

[General]
autoStart=/mnt/sdcard/friendlycore-xenial
autoExit=true

The autoStart field specifies that the specified system will be burned automatically without interaction, if no LCD is connected, the burn status can be identified by the LED burn, by default, the green LED flashes to indicate that it is burning.

9 Backup & Restore Data on eMMC Flash

This is pretty much like what the GHOST does with Windows. This function can either back up all the data on eMMC to an external storage device or copy all data from an external storage device to eMMC.

For mass production:
This is especially useful for a case in which you have made a system on a board and want to install this system to massive boards. This works for both Android and Linux images.

Prerequisites:
You need to have an external storage device whose storage is greater than the eMMC Flash. The external storage device should be formatted to exFat or ntfs. In some case eflasher may re-partition your external storage device.

9.1 System Backup and Restore via GUI

On EFlasher's main window click on "Backup and Restore" and proceed with the prompts:

eflasher_index


9.1.1 Select Location for Backup Files

You can backup your files to either a TF card or a USB drive.

9.1.1.1 Backup Files to TF Card
eflasher_backup_tf

The capacity of your TF card should be at least twice that of the eMMC on your board. For instance if your eMMC is 8G you should get a TF card with at least 16G.
By default the capacity of a TF card with at least 8G may not be fully recognized therefore you need to format such a card. Click on the "Format TF card back to original size" button to format the card.

  • Click on "Backup eMMC Flash" to backup all the files in the eMMC;
  • Click on "Restore eMMC Flash from backup file" to write all the files to the eMMC;
9.1.1.2 Backup Files to USB Drive
eflasher_backup_udisk

We suggest you format your USB drive to "ext4/exfat/ntfs". If it is not click on the "Re-layout and format USB Drive" button on the GUI to format the drive.Attention:formatting a USB drive will remove all its existing data.

  • Click on "Backup eMMC Flash" to backup all the files in the eMMC;
  • Click on "Restore eMMC Flash from backup file" to write all the files to the eMMC;
9.1.1.3 Backup

Click on the "Backup eMMC Flash" button, select a location for your backup file whose format extention will be ".raw" and start to backup:

eflasher_backup
9.1.1.4 Restore

Click on the "Restore eMMC Flash from backup file" button, select a ".raw" file and start to restore:

eflasher_restore

9.2 Backup & Restore Data with Commandline Utility

Type the following command to start eflasher on an SSH or serial terminal: 

# eflasher

You will see the following menu: 

----------------------------------------------------------------------
  EFlasher v1.2 b190111 running on NanoPC-T4
    Doc: http://wiki.friendlyelec.com/wiki/index.php/EFlasher
    eMMC: 14.56 GB
----------------------------------------------------------------------
  # Select an OS to install:
    1) Android 8
   
  # Select your backup target device:
     tf) [*] TF card  (/dev/mmcblk0p1 - 4.27 GB free - 5.67 GB total - fuseblk)
    usb) [ ] USB disk  (<none>)
   
  # Backup eMMC flash to TF card:
    Not enough free disk space on your TF card
   
  # Restore eMMC flash from backup file:
    No backup files found
   
  # Configure automatic job:
    aui) Automatic installing (Curr:Off)
    aur) Automatic restoring (Curr:Off)
   
  # Format drive
    ftf) Format TF card back to original size
----------------------------------------------------------------------
>>> Enter an option (1/tf/usb/aui/aur/ftf) :

9.3 Select the storage location of the backup file

You can place the backup file on a TF card, or a USB storage device, using the tf and usb commands to switch.

9.3.1 Backup to TF card

Your TF card size should be greater than or equal to twice the eMMC size. For example, if eMMC is 8G, you should prepare a 16G TF card.
By default, TF cards above 8G do not use all the space in the eFlasher system. You need to do a format once, use the ftf command on the menu.

9.3.2 Backup to USB storage device

The USB storage device is preferably in ext4/exfat/ntfs format. If not, you can use the fud on the menu to format the USB storage device once. Note that this operation will lose all data.

9.3.3 Start backup

Type "bk" and enter to start data backup. All data will be saved in a file with the "raw" extension.

----------------------------------------------------------------------
  Backing up eMMC to /mnt/udisk/nanopc-t3-emmc.raw
----------------------------------------------------------------------
  Speed: 15.01 MB/s
  Remaining Time: 00:12:53
  [===========_______________________________________]  22%
----------------------------------------------------------------------
  >>>If you want to cancel, input "c" then press <Enter> key.

9.4 Additional Functions

EFlasher allows users to write Linux shell scripts to make changes to eMMC's boot partition and file systems. For instance:
1) Add a customized startup LOGO
2) Allocate a static IP or MAC for board
3) Update system with the internet
4) More...
If you have such a script it will be executed after EFlasher backs up eMMC's data.
Your scripts need to be put in a separate directory which should be under the same directory with the backup file. This separate directory should be named as "backup file's name + .d". For instance if the backup file's name is "xxxx.raw" this directory's name should be "xxxx.raw.d".
By default EFlasher will generate a script which will do clearance work such as removing temporary files under the tmp directory and log files under the var directory after backup is done.
You can learn how to access eMMC's boot and root partitions by studying this script.

root@NanoPC-T3:/mnt/udisk/nanopc-t3-emmc.raw.d# tree
.
|-- cleanup.sh
`-- README.txt
 
0 directories, 2 files
root@NanoPC-T3:/mnt/udisk/nanopc-t3-emmc.raw.d#

(Note that this feature does not work when using the auto-restoring feature)

9.5 Automatically restore the specified backup when booting

You can automate restoring with eFlasher at system startup in two ways:

  • No.1：On the GUI, enter the Backup and restore UI, first select the storage device where the backup file is located, select TF card or USB disk, then click "Turn on Automatic restoring", and select the file to be restored.
  • No.2: Use the notepad+ text editor to create a new file called eflasher.conf in the root directory of the storage device (or open an existing "eflasher.conf"). The sample content is as follows:
[General]
autoStart=/mnt/sdcard/nanopct3-backup-20190101.raw

/mnt/sdcard/ indicates TF card, /mnt/udisk indicates USB disk.

10 Make Your Own eFlasher

10.1 Manage Multiple OS Images with eFlasher

The eFlasher utility reads image files from the FAT section of an SD card. After an SD card is inserted to a Windows PC you can manage multiple OS images that exist in the SD card with eFlasher.
Under the FAT section of an SD card with multiple OS images each directory under the root directory contains an OS image. The name of such a directory should be named with letters or numbers
If the FAT section is not big enough to hold your multiple OS images you can store them in a USB drive with the same structure
For example there are four directories under the FAT section:
Eflasher-folder
They stand for four OS:
Eflasher-oslist

Files under an OS directory:
Configuration File:

env.conf environmental variables for setting up uboot and kernel parameters
info.conf system information:

title=Android 5 ---> OS name: Android 5
require-board=s5p4418 ---> SoC: S5P4418, options including S5P6818, H3, A64 etc
version=2016-11-17 ---> ROM's version number(or release date)
icon=androidos.png ---> icon
Here is a screenshot:
Eflasher-infoconf

Image File:

2ndboot.bin Second Boot
boot.img image file for boot section
bootloader U-Boot
cache.img image file for Android Cache section
system.img image file for system section
userdata.img image file for user data section
partmap.txt description file for partition map

These image files by default are included in an eFlasher file. These files can be downloaded from a board's corresponding wiki site. Usually an image file is located at the images-for-eflasher directory of a server. Here is how a S5P6818's directory looks like:

EImages-for-eflasher.png

You can download its image file and extract it to the FAT section of an SD card.

10.2 Make eflasher File with Your OS

Refer to How to make your own SD-bootable ROM

10.3 Connect WiKi in the EFlasher system

Write the following to the configuration file: /etc/wpa_supplicant/wpa_supplicant.conf, where SSID and PASSWORD should be replaced with the router's SSID and password： 

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=CN
network={
  ssid="SSID"
  psk="PASSWORD"
  key_mgmt=WPA-PSK
}

If the WiFi route does not set a password, set key_mgmt to NONE, delete this line: psk=.


11 Change IP address

For faster startup speed, we set the eflasher to static ip address: 192.168.1.231,

If you want to change to dhcp, you can modify this file:
/etc/network/interfaces.d/eth0

Change the contents of this file to:

auto eth0
iface eth0 inet dhcp

12 Update Log

12.1 July-26-2017

  • Released English Version

12.2 August-22-2017

  • Added section 6.2

12.3 March-10-2018

  • Updated sections 6.2 and 6.3

12.4 July-26-2018

  • Added sections 6 and 7.3.2
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