VAR-SOM-AM33 Yocto NAND Recovery: Difference between revisions
From Variscite Wiki
Line 9: | Line 9: | ||
*dd if=am33-som-nand-recovery-sd.vX.img of=/dev/sd<span style="color: rgb(255, 0, 0);">'''X'''</span> bs=128k | *dd if=am33-som-nand-recovery-sd.vX.img of=/dev/sd<span style="color: rgb(255, 0, 0);">'''X'''</span> bs=128k | ||
== Recover Nand Flash== | |||
*Insert the SD card into the SD/MMC slot of the | *Power-off the board. | ||
*Press and hold the boot select | *Insert the SD card into the SD/MMC slot of the carrier board (DVK) | ||
* | *Press and hold the boot-select button, and power-on the board while button is pressed | ||
*The board will automatically boot into Linux from SD-Card | |||
*login as 'root', no password is required | |||
<br> '''NAND recovery script usage:''' | <br> '''NAND recovery script usage:''' |
Revision as of 08:45, 21 December 2015
NAND Recovery
As an easy and fast way to recover the VAR-SOM-AM33 NAND flash, Variscite provides a recovery SD card image that can be used to install the pre-built Linux and Android systems.
This SD card image includes a script (nand-recovery.sh) that installs all the boot images and root file-system.
Preparing rescue SD-Card
- Plug your SD card to your Linux machine, run dmesg and see what device is added (i.e. /dev/sdX)
- gunzip am33-som-nand-recovery-sd.vX.img.gz (get latest)
- dd if=am33-som-nand-recovery-sd.vX.img of=/dev/sdX bs=128k
Recover Nand Flash
- Power-off the board.
- Insert the SD card into the SD/MMC slot of the carrier board (DVK)
- Press and hold the boot-select button, and power-on the board while button is pressed
- The board will automatically boot into Linux from SD-Card
- login as 'root', no password is required
NAND recovery script usage:
usage: /sbin/nand-recovery.sh options This script install Linux/Android binaries in VAR-SOM-AM33 NAND. OPTIONS: -h Show this message -o <Linux|Android> OS type (defualt: Linux). -c Install kernel with capacitive touchscreen support (defualt: no).