Winston.huang: Created page with "{{DISPLAYTITLE:How to Recover Ubuntu}} == Set Up Ubuntu Host PC == On the Ubuntu host PC, follow these steps to install tools and configure your host PC: * Install genio-to..."

2024-07-22T09:13:10Z

Created page with "{{DISPLAYTITLE:How to Recover Ubuntu}} == Set Up Ubuntu Host PC == On the Ubuntu host PC, follow these steps to install tools and configure your host PC: * Install genio-to..."

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{{DISPLAYTITLE:How to Recover Ubuntu}}

== Set Up Ubuntu Host PC ==
On the Ubuntu host PC, follow these steps to install tools and configure your host PC:

* Install genio-tool and its dependencies. This is used to flash Ubuntu images to the target board.
<syntaxhighlight lang="bash">
# Ubuntu 22.04
sudo apt update
sudo apt install python3-pip
pip3 install --upgrade pip
sudo apt install fastboot
pip3 install -U genio-tools
</syntaxhighlight>

* Add two new udev rules and add your user account to the '''<code>plugdev</code>''' & '''<code>dialout</code>''' group:

<syntaxhighlight lang="bash">
cat << EOT | sudo tee /etc/udev/rules.d/96-genio-board.rules
SUBSYSTEM=="usb", ATTR{idVendor}=="0e8d", ATTR{idProduct}=="201c", MODE="0660", $ GROUP="plugdev"
EOT

cat << EOT | sudo tee /etc/udev/rules.d/72-aiot.rules
SUBSYSTEM=="usb", ATTR{idVendor}=="0e8d", ATTR{idProduct}=="201c", MODE="0660", TAG+="uaccess"
SUBSYSTEM=="usb", ATTR{idVendor}=="0e8d", ATTR{idProduct}=="0003", MODE="0660", TAG+="uaccess"
SUBSYSTEM=="usb", ATTR{idVendor}=="0403", MODE="0660", TAG+="uaccess"
SUBSYSTEM=="gpio", MODE="0660", TAG+="uaccess"
EOT

sudo udevadm control --reload-rules
sudo udevadm trigger
sudo usermod -a -G plugdev,dialout $USER
# completely logout then re-login, or just reboot immediately
loginctl terminate-user $USER # *** desktop will be terminated ***
# sudo reboot
</syntaxhighlight>

* check if '''<code>20(dialout)</code>''' and '''<code>46(plugdev)</code>''' are list in the effective group ID ...
<syntaxhighlight lang="bash">
id
</syntaxhighlight>

* check if the genio-tools does work
<syntaxhighlight lang="bash">
genio-config
</syntaxhighlight>
:make sure every item's result is '''OK'''
<pre style="background-color: lightgrey">
fastboot: OK
udev rules: OK (md5: a3b2767b42ee01d7c62bf394400528ae)
Serial device write access: OK
</pre>

== Get Ubuntu Recovery Pack Ready==
* Obtain this pack through your local Advantech representative and extract it first.

<syntaxhighlight lang="bash">
tar xvf ${RECOVERY_PACK}.tgz
</syntaxhighlight>

== Connect the Target Board to the Host PC ==

* Confirm the power adaptor has been connected to the board.
* Use one Type-A to Type-A USB cable to connect the host PC and the target board (DOWNLOAD supported USB port)
* (optional) Use debug console to monitor flashing process
* Turn the target board power on

== Flash Ubuntu Recovery Pack to the Target Board ==

* First change directory(cd) to the revoery pack directory, and run genio-flash:

<syntaxhighlight lang="bash">
cd ${RECOVERY_PACK}
genio-flash
</syntaxhighlight>

:The tool should have the following output:
<syntaxhighlight lang="text" highlight="1-10" style="border: 2px dashed blue;">
Looking for MediaTek SoC matching USB device 0e8d:0003
</syntaxhighlight>

:The line Looking for MediaTek SoC matching USB device 0e8d:0003 shows that genio-flash tool is waiting for the board to be reset into download mode to start the flash programming procedure.

:Follow these steps to enter download mode:<br>
::Press the DOWNLOAD button and hold it ...<br>
::Press and release the RESET button.<br>
:The flash tool should output the following messages:<br>

<syntaxhighlight lang="text" highlight="1-10" style="border: 2px dashed blue;">
Jumping to bootstrap at address 0x201000 in AArch64 mode
flashing writable=rootfs.img
< waiting for any device >
</syntaxhighlight>

:Release the DOWNLOAD button after the tool outputs '''<code>< waiting for any device ></code>'''

:The flash tool should continue with the following message, which shows the progress of writing image content to the storage:

<pre style="background-color: lightgrey">
Sending sparse 'writable' 1/17 (261712 KB) OKAY [ 6.936s]
Writing 'writable' OKAY [ 19.022s]
Sending sparse 'writable' 2/17 (262016 KB) OKAY [ 6.959s]
Writing 'writable' OKAY [ 17.793s]
Sending sparse 'writable' 3/17 (261922 KB) OKAY [ 6.852s]
Writing 'writable' OKAY [ 15.435s]
Sending sparse 'writable' 4/17 (253224 KB) OKAY [ 6.600s]
Writing 'writable' OKAY [ 11.948s]
</pre>

:Eventually, the flash tool would report the following logs once it finishes writing the onboard storage and reboot the board:

<pre style="background-color: lightgrey">
Sending sparse 'writable' 16/17 (262143 KB) OKAY [ 6.692s]
Writing 'writable' OKAY [ 9.236s]
Sending sparse 'writable' 17/17 (112636 KB) OKAY [ 2.916s]
Writing 'writable' OKAY [ 5.021s]
Finished. Total time: 539.208s
flashing ubuntu-boot=efi.img
Sending 'ubuntu-boot' (12803 KB) OKAY [ 0.331s]
Writing 'ubuntu-boot' OKAY [ 0.534s]
Finished. Total time: 0.876s
Rebooting OKAY [ 0.002s]
Finished. Total time: 0.052s
</pre>

AIMLinux/BSP/Linux/MT8395/recover ubuntu - Revision history

Winston.huang: Created page with "{{DISPLAYTITLE:How to Recover Ubuntu}} == Set Up Ubuntu Host PC == On the Ubuntu host PC, follow these steps to install tools and configure your host PC: * Install genio-to..."