Reset & exception vectors missing when building 05_led_roulette about discovery HOT 2 OPEN

Hmm, I know that the latest version of cortex-m-rt doesn't support old versions of GCC / LD (e.g. 4.9.x / 2.24) but I can't repro your issue in a Docker container -- the minimal example from the quickstart template works for me.

$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04 LTS"

$ arm-none-eabi-gcc --version | head -n1
arm-none-eabi-gcc (15:6.3.1+svn253039-1build1) 6.3.1 20170620

$ arm-none-eabi-ld --version | head -n1
GNU ld (2.27-9ubuntu1+9) 2.27

What version of arm-none-eabi-ld do you have installed?

Also can you post the full error message that you get when you build the minimal example. Preferably in a gist.

from discovery.

Error message.

GCC and LD versions match yours.

$ arm-none-eabi-gcc --version | head -n1
arm-none-eabi-gcc (15:6.3.1+svn253039-1build1) 6.3.1 20170620

$ arm-none-eabi-ld --version | head -n1
GNU ld (2.27-9ubuntu1+9) 2.27

from discovery.