TS-7180 eMMC Backup/restore: Difference between revisions
From embeddedTS Manuals
(Improve comments, especially regarding what to do if mkfs.ext4 doesn't understand an option given in the example.) |
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The simplest way to backup/restore the eMMC is | The simplest way to backup/restore the eMMC is by booting to the SD card and then writing the eMMC image to removable media such as a USB stick. | ||
<source lang=bash> | <source lang=bash> | ||
sudo mkdir /mnt/emmc/ | sudo mkdir /mnt/emmc/ | ||
sudo mount /dev/mmcblk1p1 /mnt/emmc/ | sudo mount /dev/mmcblk1p1 /mnt/emmc/ | ||
Revision as of 18:22, 1 October 2021
The simplest way to backup/restore the eMMC is by booting to the SD card and then writing the eMMC image to removable media such as a USB stick.
sudo mkdir /mnt/emmc/
sudo mount /dev/mmcblk1p1 /mnt/emmc/
cd /mnt/emmc/
tar -cjf /path/to/ts7180-backup-image.tar.bz2
cd ../
umount /mnt/emmc/
sync
To write a new filesystem to the TS-7180, first boot to an SD card or USB stick. Then re-image the eMMC:
# The eMMC is /dev/mmcblk1.
#
# Ensure the media has an MBR (not GPT) partition table with exactly one partition.
# Re-partition the device with fdisk or gparted if it isn't already partitioned correctly.
sudo mkdir /mnt/emmc/
sudo mkfs.ext4 -O ^metadata_csum,^64bit /dev/mmcblk1p1
# If the above command fails, complaining of an invalid filesystem option, it is fine to omit that flag:
# An older mkfs.ext4 that doesn’t understand it also can’t create a backwards compatibility issue.
sudo mount /dev/mmcblk1p1 /mnt/emmc/
tar -xjf /path/to/ts7180-new-image.tar.bz2 -C /mnt/emmc
umount /mnt/emmc/
sync