I compiled a test version of the system firmware update from removable media.
For update does not require a Windows PC.
1. Balbes150_VIM2 MultiOS 3in1 (Android+Libreelec+Linux)
Pay attention to the install (upgrade) the firmware is possible with any media SD card and USB flash drive (minimum media size of 4 GB).
I’m using another principle of installation and creation of the firmware. It is an exact copy of the content of eMMC. It is not necessary to unpack. To install this firmware to eMMC, you need to run Linux from external media and execute a special script (kvim2-update).
Not use USB Burner Tool !!!
- To download the file system image. Console version, work with the system through command-line terminal or MATE\XFCE (full graphic system, with the possibility of performing all actions without a computer).
- To unpack the archive.
- To record the received image on the medium. You can use any media, SD card or USB flash drive. The minimum media size for the console version - from 4Gb to a full version - from 8Gb. I recommend (if possible) to use a fast SD card of 8 GB for both versions.
- If you have not yet activated universal multiboot, you need to activate it. Pay attention, mandatory condition uses system - the presence of a universal multi-boot.
- After running the system from external media, wait for an invitation to enter a username and password. The primary login is “root” and password “1234”. To change the password to a new one. Specify a name for the new user. The system then automatically reboot.
- After a reboot, depending on the type of used images (console or graphical desktop), will launch its own system.
- Log in and test it.
These systems are based on Armbian. For more information on setting up and working in Armbian see the relevant threads on this forum or on the forum Armbian.
You can proceed to the second stage, the creation of the full backup.
Start creating a full backup of the entire contents of eMMC.
For the console version to run the utility “ddbr” and follow the prompts (select mode to create a compressed copy).
For the full (graphical) system, you need to run the terminal to switch to user “root”. For this you need to run the command “su -” (su space minus). And run backup “ddbr”, then follow its tips to create the compressed copy.
Pay attention to the process of creating a full backup, depending on the parameters used media and size of the internal memory eMMC (as it used space), while creating a full backup may be more than 1 hour. I highly recommend spending the time to create such a copy, it will in the future, if any faults do not correct your actions, experiments with different firmwares, to restore your system to the current state.
A backup was created will be in the directory /ddbr. You can additionally save in any safe place (on a PC, on network storage, the Internet, etc.). In full (GUI) version is easy to do using current software (browser, file Manager, etc.).
After creating a full backup, you can start installing different versions of the firmware described in this thread.
For this, you need to download the necessary archive with the firmware (pay attention it is NOT to decompress). Put it archive in the directory /ddbr media system (the full backup file can be left on the media, they have different names with the archives of the firmware). To start the utility installation of the firmware in the eMMC. To do this, run in terminal as user “root” command “kvim2-update” and follow the prompts. The process of installing new firmware usually takes about 15-25 minutes. After installing the firmware, you need to shut down the system, to disable a carrier with a system kvim2-update and run VIM2 without a carrier.
краткое описание на русском