FS not resizing.

[Nachteule]

(23rd May, 2019 10:14 PM)jakenl Wrote:  My rpi3 arrived in the mail today. Will it work to plop both the sd card and usb key into the new unit?

No!

1) Kernel package is different.
2) Pi < 2 is based on Raspbian, all others based on Debian
3) All Pi's > 2 can boot from USB/Network directly, no need of sd-card with bootcode.bin required. Pi3B+ does this OOTB.

I already described here what has do be done modifing such a sd-card, but I do not recommend that procedure