UEFI Interactive Shell v2.50 EDK II (based on UEFI 2.5) Mapping table: BLK0: Alias(s):HD0a... Shell>

| Command | Description | |---------|-------------| | cp | Copy files (e.g., cp fs0:\EFI\BOOT\bootx64.efi fs1:\ ) | | rm | Remove files. No confirmation prompt. | | mkdir / rmdir | Create/remove directories. | | type | Display a text file. |

runtime environment that allows users to interact directly with the computer's firmware. It is primarily used for: System Diagnostics: Checking hardware health and memory maps. Firmware Updates: Manually flashing BIOS/UEFI updates from a USB drive. Boot Management: Repairing or manually launching bootloaders (e.g., bootx64.efi ) if the primary OS fails to load. Scripting: Executing automated tasks via scripts, most notably startup.nsh Key Features in Version 2.50

| Command | Description | |---------|-------------| | map | Lists all mapped devices (hard drives, USB, CD-ROM). Crucial for finding your EFI partition. | | fs0: or fs1: | Change to a filesystem. fs0: is usually the EFI System Partition. | | ls | List directory contents. Supports ls -b (brief) and ls -l (long). | | cd | Change directory within a FAT32 filesystem. | | vol | Display volume label and filesystem type. |

: If it’s a desktop, ensure the SATA and power cables are firmly plugged into the drive and motherboard. 4. Exit via Command (Temporary)