User's Manual

22 Chapter 2:Before You Begin the Installation Process
The EFI Shell contains a bootloader called elilo. Additional information on EFI can be found at
the following URL:
http://developer.intel.com/technology/efi/index.htm
2.2.1 EFI Device Names
The map command can be used to list all devices and filesystems 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:
Shell>map
The output is listed in the order the system was probed. So, all FAT16 filesystems 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 filesystems and block devices are