Swap SD <> eMMC Installs?
01-23-2020, 02:04 PM
No eMMC reader here, just a USB card-reader that I can use to access another SD card while I'm booted from the built-in SD card.
I just realized that I don't understand the process of using dd to create an image file and write a bootable filesystem back to the drive. Can I copy from the first sector on the drive to the end (do I need to provide an offset or skip copying any portions of either drive, either during the backup or the restore)? Are there blocksize or other parameters to dd that are necessary (other than the obvious if= and of=)?
I just realized that I don't understand the process of using dd to create an image file and write a bootable filesystem back to the drive. Can I copy from the first sector on the drive to the end (do I need to provide an offset or skip copying any portions of either drive, either during the backup or the restore)? Are there blocksize or other parameters to dd that are necessary (other than the obvious if= and of=)?