TS-4200 Restore XNAND: Difference between revisions
From embeddedTS Manuals
(Slightly reworded warning to encourage use of dd.) |
m (Links auto-updated for 2022 re-branding ( https://files.embeddedarm.com/ts-socket-macrocontrollers/ts-4200-linux/binaries/ts-images/xnand-4200-latest.dd.gz → https://files.embeddedTS.com/ts-socket-macrocontrollers/ts-4200-linux/binaries/ts-images/xnand-4200-latest.dd.gz)) |
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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. | ||
{{Warning| | {{Warning|It is not safe to run multiple instances of the 'nandctl' application on this platform. Be sure that all NAND filesystems are unmounted before reading/writing them with the instructions below. The following examples use 'dd' on devices nodes, this operation is safe while 'nandctl' is running, and is the preferred method.}} | ||
You can find the latest xnand image [ | You can find the latest xnand image [https://files.embeddedTS.com/ts-socket-macrocontrollers/ts-4200-linux/binaries/ts-images/xnand-4200-latest.dd.gz here]. | ||
'''Backup''' | '''Backup''' | ||
Latest revision as of 16:46, 17 January 2022
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.
| WARNING: | It is not safe to run multiple instances of the 'nandctl' application on this platform. Be sure that all NAND filesystems are unmounted before reading/writing them with the instructions below. The following examples use 'dd' on devices nodes, this operation is safe while 'nandctl' is running, and is the preferred method. |
You can find the latest xnand image here.
Backup
Entire Image
# Compressed
dd if=/dev/nbd0 bs=131072 count=2048 | bzip2 > backup.dd.bz2
# or uncompressed
dd if=/dev/nbd0 bs=131072 count=2048 of=backup.dd
Kernel
dd if=/dev/nbd1 bs=512 count=5119 of=/path/to/backup/zImage
Initrd
dd if=/dev/nbd2 bs=512 count=5120 of=/path/to/backup/initrd
Restore
Entire Image
dd if=xnand-4200-latest.dd bs=131072 count=2048 of=/dev/nbd0 conv=fsync
Kernel
dd of=/dev/nbd1 bs=512 count=5119 if=/path/to/backup/zImage conv=fsync
Initrd
dd of=/dev/nbd2 bs=512 count=5120 if=/path/to/backup/initrd conv=fsync
Expected Partition Layout
| Partition | Contents |
|---|---|
| 1 | kernel binary (0xda) |
| 2 | initrd (0xda) |
| 3 | Debian root filesystem (EXT3) |