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ApplePi-Baker (Mac only) now supports shrinking .img files during SD card backup (and expansion during restore): ApplePi-Baker v2 – Backup & Restore SD cards, USB drives, etc. - Shrink IMG Process Unfortunately the .img is expanded prior to writing back to the memory card, so it actually takes longer overall - but at least the .img backup file is ...


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At first I was using awk/grep to parse fdisk and pull out offsets, but found it could be a bit complicated, flakey, and hard to understand later. The easiest method I have found: IMAGE_FILE="YOUR IMAGE FILE GOES HERE" TMP=$(mktemp -d) LOOP=$(sudo losetup --show -fP "${IMAGE_FILE}") sudo mount ${LOOP}p2 $TMP sudo mount ${LOOP}p1 $TMP/boot/ # do stuff to ${...


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Instead of cloning the image, try imaging the CM3 module with the fast, painless method I documented at following link: How do I Flash (install) Raspbian on Raspberry Pi Compute Module 3 / 3+? Since this method is proven to image a CM3/3+ correctly, your CM3 should boot. If it doesn't, then the shape of the problem is something other than how it was ...


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I stumbled across this question, and while I share goldilocks reservations; it is possible - albeit with some constraints. Telephone networks face similar issues; it is generally considered unacceptable to shut an exchange down to upgrade software. Telecommunications solves this by a number of techniques - often dual processors in a hot/standby pair. I ...


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