Currently I have this setup:
RPI 3B+ running headless 24/7
Stretch on Microsd with Plex and Deluge
External 500 GB HDD via USB (automounted on boot, Download location of Deluge,Shared thru Samba) - 100% ext4
I read that we could boot Raspbian from USB HDD alone without any microsd cards. This is a better option because we have frequent power interruptions here and microsd cards have short lifespan as well.
My question is that can I resize the external HDD, make a FAT32 partition, use SD Card Copier to migrate microsd files to new FAT32 partitions, remove microsd card and finally boot from HDD without breaking my current software setup?
Thanks in advance.