# Installation Failed on CoreOS?

**URL:** <https://meta.discourse.org/t/installation-failed-on-coreos/55789>\
**Category:** Self-hosting\
**Created:** [15 Gennaio 2017, 4:25am UTC](https://meta.discourse.org/t/installation-failed-on-coreos/55789 "2017-01-15T04:25:12Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![Blackglade](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/blackglade/32/66445_2.png) [@Blackglade](https://meta.discourse.org/u/Blackglade)\
**Post date:** [16 Gennaio 2017, 2:48am UTC](https://meta.discourse.org/t/installation-failed-on-coreos/55789/10 "2017-01-16T02:48:22Z")

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Just read the launcher source code and figured out the error. Gonna see if it works. hostname -s gives me Unknown Host error even though -s is a valid flag. hostname works just fine.

God… what a stupid error: [Hostname Invalid Output · Issue #1764 · coreos/bugs · GitHub](https://github.com/coreos/bugs/issues/1764)

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