IBM xSeries 450 Planning And Installation Manual page 86

Tip: Adding or removing media may cause arbitrary reassignments of the FSx
designations. Always make sure you access the right media by issuing the map
command.
As an example of the capability of accessing file systems, the following are the
steps to access data stored on the USB memory key device:
1. Insert the USB memory key into the USB port (can be hot-added).
2. Start the EFI shell from the Boot Manager menu.
3. Use the map command to identify the appropriate mapping for the USB device
the EFI automatically created. Sample output of the command is in
Figure 4-3.
If the appropriate mapping does not appear, run map -r , where parameter -r
forces EFI to refresh the device mapping table. You may also have to exit and
re-enter the shell before the FSx entry appears.
Shell> map
Device Mapping Table
fs0 : MemMap(0:FF000000-FFFFFFFF)
fs1 : MemMap(0:FF800200-FFBFFFFF)
fs2 : Acpi(PNP0A03,0)/Pci(5|2)/Usb(0, 0)/HD(Part1,Sig00000000)
blk0 : MemMap(0:FF000000-FFFFFFFF)
blk1 : MemMap(0:FF800200-FFBFFFFF)
blk2 : Acpi(PNP0A03,0)/Pci(5|1)/Ata(Primary,Master)
blk3 : Acpi(PNP0A03,0)/Pci(5|1)/Ata(Primary,Slave)
blk4 : Acpi(PNP0A03,1)/Pci(3|0)/Scsi(Pun0,Lun0)
blk5 : Acpi(PNP0A03,0)/Pci(5|2)/Usb(0, 0)
blk6 : Acpi(PNP0A03,0)/Pci(5|2)/Usb(0, 0)/HD(Part1,Sig00000000)
Figure 4-3 Map command
4. Look for the specific device in the FSx section. In our example, the entry is
highlighted in Figure 4-3. The entry will include the string USB .
If the USB device is attached to a USB hub (for example a memory key
plugged into the USB port of a USB keyboard), then two USB strings will
appear in the entry, as shown in Figure 4-4 on page 73.
IBM ^ xSeries 450 Planning and Installation Guide
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