A sudden power loss or failed update damaged the EFI System Partition (ESP).
: Altered firmware settings have made your existing OS installation unbootable. Key Commands for Navigation
To use EFI Shell version 2.60.512, you will need to access the EFI firmware on your computer. This can typically be done by pressing a key combination during boot, such as F2, F12, or Del. Once you have accessed the EFI firmware, you can navigate to the EFI Shell by selecting the "EFI Shell" option from the firmware menu.
21 May 2021 — EFI Shell Error: Map Name Not Found - Help Needed - LattePanda Forum. LattePanda How to remove EFI shell version? - Facebook
Your operating system was installed under legacy BIOS mode (CSM), but the motherboard is currently configured for strict UEFI-only boot. Step-by-Step Guide to Exit the EFI Shell efi shell version 260 512 2021
Open the computer case or the storage access panel on the bottom of the laptop.
A drained CMOS battery on the motherboard reset the system configurations to factory defaults, disabling your standard boot mode.
Power down your computer completely and unplug it from the wall. Open the desktop case or laptop back panel. Locate your storage drive (M.2 SSD or 2.5-inch SATA drive).
You may have purchased a "No-OS" laptop or a device without Windows pre-installed. A sudden power loss or failed update damaged
The laptop was purchased without Windows pre-installed.
Did this screen appear (like a Windows update, dropping the laptop, or changing hardware)?
Modifying EFI variables to change boot order or paths. Understanding EFI Shell Version 2.60 (2021 Context)
fs0: : Switches the active command line to the first recognized file system (usually the EFI system partition). This can typically be done by pressing a
| Command | Function | Example Use Case | | :--- | :--- | :--- | | bcfg | Manages boot and driver options stored in NVRAM. | bcfg boot add 1 fs0:\EFI\ubuntu\grubx64.efi "Ubuntu" adds an Ubuntu entry as the first boot option. | | date | Displays or sets the current system date. | date 01/01/2025 changes the system date. | | time | Displays or sets the current system time (GMT). | time 14:30:00 changes the system time. | | ver | Displays the current EFI and Shell version information. | Simply type ver to confirm which UEFI Shell version you are running. | | set | Displays, creates, modifies, or deletes UEFI Shell environment variables. | set myVariable "Hello" creates a variable. | | dmpstore | Manages all UEFI variables stored in NVRAM. | dmpstore -all -s my_backup.txt saves all UEFI variables to a file. |
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This guide provides an overview of the , specifically regarding the build identifier "512" and the year "2021."