(or fs1: , fs2: ): Switches to the file system. Type fs0: and press enter to switch to that drive. ls : Lists the files and directories in the current drive. cd : Changes the directory. exit : Exits the shell to the BIOS GUI. Example Scenario: Running a file from a USB
A concise, practical reference for the EFI (UEFI) Shell version "260_512_2021" — commands, syntax, file operations, scripting, environment variables, boot manager interactions, and common troubleshooting.
Restart your computer and repeatedly press the BIOS key (usually , Del , F12 , or F10 ). Navigate to the Boot tab using your arrow keys. Look for Boot Option #1 or Boot Priority . efi shell version 260 512 2021
If your OS was installed in UEFI mode, ensure is enabled and CSM (Compatibility Support Module) is disabled.
Mastering the EFI Shell: A Deep Dive into Version 2.60/2.512 (2021) and UEFI Troubleshooting (or fs1: , fs2: ): Switches to the file system
Displays the files and directories inside the current folder. ls -b (paged view) cd Changes the current working directory path. cd EFI\Microsoft\Boot cls Clears the command line screen of text. cls reset
Version 260.512.2021 stands out as a stable, well-documented release that balances modern hardware support (NVMe, GPUs with UEFI oproms) without the occasional bugs of cutting-edge 2.9 builds. cd : Changes the directory
If you have stumbled upon this version string while booting a server, a motherboard diagnostic tool, or a UEFI firmware update utility, you are likely dealing with a specific UEFI environment from the 2021 release cycle. This article provides a comprehensive breakdown of what this version means, its features, practical use cases, and how to leverage it for low-level system management.