# OS 4 and 3.5.1 reinstall Failure

**URL:** https://community.start9.com/t/os-4-and-3-5-1-reinstall-failure/5509
**Category:** Services Support
**Created:** [August 4, 2026, 12:31am UTC](https://community.start9.com/t/os-4-and-3-5-1-reinstall-failure/5509 "2026-08-04T00:31:22Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![servmick](https://community.start9.com/letter_avatar_proxy/v4/letter/s/3da27b/32.png) [@servmick](https://community.start9.com/u/servmick)
#### Post date: [August 4, 2026, 12:31am UTC](https://community.start9.com/t/os-4-and-3-5-1-reinstall-failure/5509/1 "2026-08-04T00:31:22Z")

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Tried installing flashed 4 OS (startos-0.4.0.1-fdb27c7\_x86\_64-nonfree) and it got myself in a jam (error RPC ERROR: Method not found setup get-pubkey) at this point i flashed a 3.1.5 ISO and tried to reinstall so I could get a backup on the server to give version 4 another try. Now I’m locked out of start9.local and I’m looking for solutions. Thanks for your consideration. Rick