SteamOS 3.5.5 got released to stable! It contains BIOS 119 update and theres a chance the EFI entries will get messed up. If it does get messed up and SteamOS gets missing its an easy fix. I’ve created a quick guide how to fix it -
Text based instructions -
Fix for SteamOS 3.5.5 Update Not Booting
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Hold volup + power then select boot from file, then select steamos, then steamcl.efi
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Wait a few seconds until it goes to game mode
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Go to desktop mode to recreate the SteamOS entry.
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Open konsole terminal and type the command
sudo efibootmgr -c -d /dev/nvme0n1 -p 1 -L "SteamOS" -l "\EFI\steamos\steamcl.efi"
- Reboot once completed.
The konsole command both options are L. First is uppercase L, the second is lowercase L
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