Newer USB flash is less robust, so there have been a lot of failures using that as boot. That's why 7.3.0 introduced ability to go internal.
I migrated to internal using one of my sata ssd, it splits to 16GB for boot partition, and using the rest of the drive as data (containing my appdata, domains and systems shares)
For Unraid 8, when they go to a Fedora base instead of slackware, they mention there will be a larger space requirement than they ask for now
I migrated to internal using one of my sata ssd, it splits to 16GB for boot partition, and using the rest of the drive as data (containing my appdata, domains and systems shares)
For Unraid 8, when they go to a Fedora base instead of slackware, they mention there will be a larger space requirement than they ask for now

, installed and it is already pre-flashed into IT mode, saves me a job!