Safe mode wont work at core config

[marrobHD]

The problem

Environment

• Home Assistant release with the issue: 0.105.2
• Last working Home Assistant release (if known): 0.105.0
• Operating environment (Hass.io/Docker/Windows/etc.): Hass.io
• Integration causing this issue: homeassistant.config
• Link to integration documentation on our website: Hass.io

Problem-relevant configuration.yaml

homeassistant:
  # Name of the location where Home Assistant is running
  name: Home
  # Location required to calculate the time the sun rises and sets
  latitude: !secret latitude
  longitude: !secret longitude
  # Impacts weather/sunrise data (altitude above sea level in meters)
  elevation: 75hhjjj
  # metric for Metric, imperial for Imperial
  unit_system: metric
  # Pick yours from here: http://en.wikipedia.org/wiki/List_of_tz_database_time_zones
  time_zone: Europe/Berlin

Traceback/Error logs

2020-02-12 20:43:08 ERROR (MainThread) [homeassistant.config] Invalid config for [homeassistant]: expected int for dictionary value @ data['elevation']. Got '75hhjjj'. (See /config/configuration.yaml, line 2). 
2020-02-12 20:43:08 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/core.py", line 1201, in async_call
    raise ServiceNotFound(domain, service) from None
homeassistant.exceptions.ServiceNotFound: Unable to find service persistent_notification/create

Additional information

I tested the Safe Mode today. It seems, that the mode wont work correctly at typos in the core config section.

[probot-home-assistant]

Hey there @home-assistant/core, mind taking a look at this issue as its been labeled with a integration (safe_mode) you are listed as a codeowner for? Thanks!

[balloob]

Correct. This is a known issue. We don't currently support the core config being invalid.