Difference between revisions of "iMX6 OpenRex Ultra Recovery"
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* Creating a new SD card containing filesystem (if needed) | * Creating a new SD card containing filesystem (if needed) | ||
| − | == | + | == Updating bootloader == |
| − | === | + | === Using Mfgtools === |
| − | If the board is unable to boot (e.g. when bootloader was deleted or not transferred successfully), [[iMX6 OpenRex USB Booting|USB Booting]] option | + | If the board is unable to boot (e.g. when bootloader was deleted or not transferred successfully), [[iMX6 OpenRex USB Booting|USB Booting]] option should be used to load the image file. |
| − | === | + | === From TFTP server === |
Download the U-Boot image (on computer acting as TFTP server): | Download the U-Boot image (on computer acting as TFTP server): | ||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
| Line 32: | Line 32: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | === | + | === From SD card === |
==== Creating SD card in Linux ==== | ==== Creating SD card in Linux ==== | ||
Create VFAT partition: | Create VFAT partition: | ||
| Line 44: | Line 44: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | Copy bootloader to SD card: | + | Copy bootloader to the SD card: |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
cd /media/user/61B3-D9BF | cd /media/user/61B3-D9BF | ||
| Line 57: | Line 57: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | == Erasing bootloader environment | + | == Erasing bootloader environment == |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
OpenRex U-Boot > env default -f -a | OpenRex U-Boot > env default -f -a | ||
Revision as of 09:24, 27 March 2021
Description
Recovery procedure consist from following steps:
- Loading bootloader binary over USB using Mfgtools feature
- Flashing new bootloader over Ethernet using TFTP
- Erasing bootloader environment
- Reseting module
- Creating a new SD card containing filesystem (if needed)
Updating bootloader
Using Mfgtools
If the board is unable to boot (e.g. when bootloader was deleted or not transferred successfully), USB Booting option should be used to load the image file.
From TFTP server
Download the U-Boot image (on computer acting as TFTP server):
cd /srv/tftp/imx6/ wget http://downloads.voipac.com/files/iMX6_OpenRex_SBC/software/uboot/binaries/u-boot-imx6-openrexultra-2.4.imx
Update the bootloader in U-Boot:
setenv ipaddr 192.168.0.150 setenv serverip 192.168.0.1 mw.b 0x10800000 0xFF 0x80000;if tftp 0x10800000 imx6/u-boot-imx6-openrexultra-2.4.imx; then if sf probe 2:2; then sf erase 0x0 0x80000;sf write 0x10800000 0x400 0x7fc00; fi; fi reset
From SD card
Creating SD card in Linux
Create VFAT partition:
sudo fdisk /dev/sdX
Unplug/plug SD card and format the partition afterwards:
sudo mkfs.vfat /dev/sdX1
Copy bootloader to the SD card:
cd /media/user/61B3-D9BF wget http://downloads.voipac.com/files/iMX6_OpenRex_SBC/software/uboot/binaries/u-boot-imx6-openrexultra-2.4.imx
Update the bootloader in U-Boot:
mw.b 0x10800000 0xFF 0x80000; if fatload mmc 0:1 0x10800000 u-boot-imx6-openrexultra-2.4.imx; then if sf probe 2:2; then sf erase 0x0 0x80000;sf write 0x10800000 0x400 0x7fc00; fi; fi reset
Erasing bootloader environment
OpenRex U-Boot > env default -f -a ## Resetting to default environment OpenRex U-Boot > saveenv Saving Environment to SPI Flash... SF: Detected SST26VF032B with page size 256 Bytes, erase size 4 KiB, total 4 MiB Erasing SPI flash...Writing to SPI flash...done
Creating bootable SD card
Follow these steps to prepare the SD card