How to change default Discourse theme via CLI?

[vchrizz (Christoph Loesch)]

just upgraded discourse from 2.0.0.beta4 to 2.0.0.beta5 and now the page does not load.
browser console gives some error about my slick gallery component which i have set as default theme.
now i tried to access /admin/ but here i get the same result.
i have alread read How to change default Discourse theme?
but as said, i cant access discourse administration.
how could i change the default theme on cli?
thanks

[david (David Taylor)]

You can use safe mode to access the site if you have an issue with a theme/plugin:

Use Safe Mode to troubleshoot issues with themes and plugins

Discourse has a “JavaScript Safe Mode”, where any user can use to isolate the root cause of a JavaScript issue caused by plugins, themes or theme components. To access safe mode go to: http://your-site-name/safe-mode for example this is the safe mode for our demo site: https://try.discourse.org/safe-mode [safe mode options] [safe mode is enabled] To exit safe mode simply close your browser tab When entering safe mode you can select between: Disable all themes and theme-components …

[vchrizz (Christoph Loesch)]

thanks for the hint!
i think this should be stated in installation guide and in guide for how to add plugins/themes.

[ahmed_alamiry]

My broken Discourse install prevents theme import

@david one thing remaining , is there any way to install theme.tar.gz from CLI (through rails or …). I used discourse theme cli to create may themes. and now I import theme.tar.gz through GUI.