75XX XNAND Recovery: Difference between revisions
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This needs to be done directly on the SBC. Please note that all NBD partitions from the NAND card must be dismounted before attempting to image the NAND on the SBC. | This needs to be done directly on the SBC. Please note that all NBD partitions from the NAND card must be dismounted before attempting to image the NAND on the SBC. | ||
You can find the latest xnand image [ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7500-linux/binaries/ts-images/xnandimg-latest.dd.bz2 here]. | You can find the latest xnand image [ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7500-linux/binaries/ts-images/xnandimg-latest.dd.bz2 here]. | ||
Once downloaded you can decompress the image using bzip2: | |||
<source lang=bash> | |||
bzip2 -d xnandimg-latest.dd.bz2 | |||
</source> | |||
The resulting file will be "xnandimg-latest.dd". | |||
'''Backup''' | '''Backup''' | ||
To backup the entire image containing the MBR/Kernel/Initrd/Debian you can run one command: | |||
<source lang=bash> | <source lang=bash> | ||
nandctl -XR 2048 -z 131072 > /path/to/backup.dd | nandctl -XR 2048 -z 131072 > /path/to/backup.dd | ||
</source> | </source> | ||
To backup the current kernel: | |||
<source lang=bash> | <source lang=bash> | ||
nandctl -XR 4096 -z 512 --seek part1 > /path/to/kernel | nandctl -XR 4096 -z 512 --seek part1 > /path/to/kernel | ||
</source> | </source> | ||
To backup the initrd: | |||
<source lang=bash> | <source lang=bash> | ||
nandctl -XR 4096 -z 512 --seek part2 > /path/to/initrd | nandctl -XR 4096 -z 512 --seek part2 > /path/to/initrd | ||
| Line 22: | Line 27: | ||
'''Restore''' | '''Restore''' | ||
To restore the entire image containing the MBR/Kernel/Initrd/Debian you can run one command: | |||
<source lang=bash> | <source lang=bash> | ||
nandctl -XW 2048 -z 131072 -i /path/to/xnandimg-latest.dd | nandctl -XW 2048 -z 131072 -i /path/to/xnandimg-latest.dd | ||
</source> | </source> | ||
To write a new kernel: | |||
<source lang=bash> | <source lang=bash> | ||
nandctl -XW 4096 -z 512 --seek part1 -i /path/to/kernel | nandctl -XW 4096 -z 512 --seek part1 -i /path/to/kernel | ||
</source> | </source> | ||
To write a new initrd: | |||
<source lang=bash> | <source lang=bash> | ||
nandctl -XW 4096 -z 512 --seek part2 -i /path/to/initrd | nandctl -XW 4096 -z 512 --seek part2 -i /path/to/initrd | ||
</source> | </source> | ||
Revision as of 12:45, 29 August 2012
This needs to be done directly on the SBC. Please note that all NBD partitions from the NAND card must be dismounted before attempting to image the NAND on the SBC.
You can find the latest xnand image here. Once downloaded you can decompress the image using bzip2:
bzip2 -d xnandimg-latest.dd.bz2
The resulting file will be "xnandimg-latest.dd".
Backup
To backup the entire image containing the MBR/Kernel/Initrd/Debian you can run one command:
nandctl -XR 2048 -z 131072 > /path/to/backup.dd
To backup the current kernel:
nandctl -XR 4096 -z 512 --seek part1 > /path/to/kernel
To backup the initrd:
nandctl -XR 4096 -z 512 --seek part2 > /path/to/initrd
Restore
To restore the entire image containing the MBR/Kernel/Initrd/Debian you can run one command:
nandctl -XW 2048 -z 131072 -i /path/to/xnandimg-latest.dd
To write a new kernel:
nandctl -XW 4096 -z 512 --seek part1 -i /path/to/kernel
To write a new initrd:
nandctl -XW 4096 -z 512 --seek part2 -i /path/to/initrd