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nixos-rebuild

 
Reconfigure a NixOS machine. More information: https://nixos.org/nixos/manual/#sec-changing-config.
 
  • Build and switch to the new configuration, making it the boot default:
     
    sudo nixos-rebuild switch
     
  • Build and switch to the new configuration, making it the boot default and naming the boot entry:
     
    sudo nixos-rebuild switch -p {{name}}
     
  • Build and switch to the new configuration, making it the boot default and installing updates:
     
    sudo nixos-rebuild switch --upgrade
     
  • Rollback changes to the configuration, switching to the previous generation:
     
    sudo nixos-rebuild switch --rollback
     
  • Build the new configuration and make it the boot default without switching to it:
     
    sudo nixos-rebuild boot
     
  • Build and activate the new configuration, but don't make a boot entry (for testing purposes):
     
    sudo nixos-rebuild test
     
  • Build the configuration and open it in a virtual machine:
     
    sudo nixos-rebuild build-vm
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