1.2.1. Itanium Systems — EFI Device Names

1.2.1. Itanium Systems — EFI Device Names

The map command can be used to list all devices and file systems that EFI can recognize. When your Itanium system boots into the EFI shell, it probes your system in the following order:

  1. LS-120 drive (if it contains media)

  2. IDE hard drives on the primary IDE interface

  3. IDE hard drives on the secondary IDE interface

  4. SCSI hard drives on the SCSI interface

  5. CD-ROM drives on the IDE interface

  6. CD-ROM drives on the SCSI interface

To view the results of this system poll, type the following command at the EFI Shell prompt:

map

The output is listed in the order the system was probed. So, all FAT16 file systems are listed first, then IDE hard drives, then SCSI hard drives, then IDE CD-ROM drives, and finally SCSI CD-ROM drives.

For example, output of the map command might look like the following:

Device mapping table   
	fs0  : VenHw(Unknown Device:00)/HD(Part1,Sig00000000)   
	fs1  : VenHw(Unknown Device:80)/HD(Part1,Sig00000000)   
	fs2  : VenHw(Unknown Device:FF)/CDROM(Entry1)/HD(Part1,Sig00000000)   
	blk0 : VenHw(Unknown Device:00)   
	blk1 : VenHw(Unknown Device:00)/HD(Part1,Sig00000000)   
	blk2 : VenHw(Unknown Device:80)   
	blk3 : VenHw(Unknown Device:80)/HD(Part1,Sig00000000)   
	blk4 : VenHw(Unknown Device:80)/HD(Part2,Sig00000000)   
	blk5 : VenHw(Unknown Device:80)/HD(Part3,Sig00000000)   
	blk6 : VenHw(Unknown Device:80)/HD(Part3,Sig00000000)/HD(Part1,Sig725F7772)  
	blk7 : VenHw(Unknown Device:FF)   
	blk8 : VenHw(Unknown Device:FF)/CDROM(Entry1)   
	blk9 : VenHw(Unknown Device:FF)/CDROM(Entry1)/HD(Part1,Sig00000000)

In this example, there is an LS-120 diskette in the LS-120 drive as well as a CD-ROM in the CD-ROM drive. All the listings beginning with fs are FAT16 file systems that EFI can read. All the listings beginning with blk are block devices that EFI recognizes. Both the file systems and block devices are listed in the order they are probed. Therefore, fs0 is the system partition on the LS-120, fs1 is the system partition on the hard drive, and fs2 is the system partition on the CD-ROM.


Note: This documentation is provided {and copyrighted} by Red Hat®, Inc. and is released via the Open Publication License. The copyright holder has added the further requirement that Distribution of substantively modified versions of this document is prohibited without the explicit permission of the copyright holder. The CentOS project redistributes these original works (in their unmodified form) as a reference for CentOS-5 because CentOS-5 is built from publicly available, open source SRPMS. The documentation is unmodified to be compliant with upstream distribution policy. Neither CentOS-5 nor the CentOS Project are in any way affiliated with or sponsored by Red Hat®, Inc.