IBM 88554RU Installation Guide - Page 115
Invoke the EFI shell from the EFI Firmware Boot Manager menu. Change to, select dd, clean
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To delete the content of the disk, perform the following steps: 1. Download the DISKPART.EFI drive partitioning utility and transfer it to the x455 using a device such as a USB memory key or CD-R. This is available from: http://developer.intel.com/technology/efi/diskutil_overview.htm 2. Invoke the EFI shell from the EFI Firmware Boot Manager menu. Change to the device where the DiskPart utility is (for example, CD-ROM or USB memory key) and run it. A DiskPart prompt appears, similar to the following: DiskPart Version 1.0 Based on EFI core release Version 1.2.1.0 DiskPart> 3. Issue the following commands: list List all the disks in the system that can be deleted. select dd Select the disk you will delete. clean Erase the contents of the selected disk. Confirm the action as prompted. exit Exit the console and return to the EFI shell. The overall process is shown in Figure 4-7. fs5:\tools> diskpart DiskPart Version 1.0 Based on EFI core release Version 1.2.1.0 DiskPart> list ### BlkSize BlkCount 0 200 21E6CA0 1 200 21E6CA0 2 200 32D9000 DiskPart> select 0 Selected Disk = 0 DiskPart> clean About to CLEAN (DESTROY) disk 0, are you SURE [y/n]? CLEAN>> y If you are REALLY SURE, type '$C' CLEAN>> $C DiskPart> exit Exiting.... Figure 4-7 DiskPart commands to erase a disk Chapter 4. Installation 101
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