TS-4720 eMMC Backup/restore: Difference between revisions
From embeddedTS Manuals
m (FTP links auto-updated (ftp://ftp.embeddedarm.com/ → https://files.embeddedarm.com/)) |
m (Links auto-updated for 2022 re-branding ( https://files.embeddedarm.com/ts-socket-macrocontrollers/ts-4710-linux/binaries/ts-images/2gb-emmc-slc-471x-latest.dd.bz2 → https://files.embeddedTS.com/ts-socket-macrocontrollers/ts-4710-linux/binaries/ts-images/2gb-emmc-slc-471x-latest.dd.bz2)) |
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| [[File:eMMC.png|70px|link=https://files. | | [[File:eMMC.png|70px|link=https://files.embeddedTS.com/ts-socket-macrocontrollers/ts-4710-linux/binaries/ts-images/2gb-emmc-slc-471x-latest.dd.bz2]] | ||
| [https://files. | | [https://files.embeddedTS.com/ts-socket-macrocontrollers/ts-4710-linux/binaries/ts-images/2gb-emmc-slc-471x-latest.dd.bz2 Click to download the latest 2GB eMMC image.] | ||
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Latest revision as of 16:51, 17 January 2022
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Click to download the latest 2GB eMMC image. |
| WARNING: | Make sure the SD and eMMC filesystems are mounted read only while writing any images. If dd is used to read or write a disk while a filesystem on it is mounted read/write this can result in a corrupt image. |
First boot to the initramfs. These steps should not be run from the full Debian environment, so to get back to the initramfs, first run:
tshwctl --removejp 1 && reboot
Once you are in the initramfs, mount a network share or usb drive containing the emmc image.
Write an Image to eMMC
# Plug in a thumbdrive formatted with ext2/3/4 or fat32/ntfs
mkdir /mnt/usbdev
mount -o ro /dev/sda1 /mnt/usbdev
dd if=/mnt/usbdev/emmc-image.dd bs=4M of=/dev/nbd1
Save an image from eMMC
# Plug in a thumbdrive formatted with ext2/3/4 or fat32/ntfs
mkdir /mnt/usbdev
mount -o ro /dev/sda1 /mnt/usbdev
# This can take about 15 minutes
dd if=/dev/nbd1 bs=4M of=/mnt/usbdev/emmc-image.dd
umount /mnt/usbdev
sync