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Identifying Hardware in EFI

 
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Popy
Regular Advisor

Identifying Hardware in EFI

Hi all,

I have great confusion identifying my disks at EFI level....I really dont know what is evey PUN and LUN combination points to. Below are the details,

I have 6 disks ( all are bootable ) I can see the primary and secondary boot path since it shows directly the HW path and I have no issue booting my server from PRI and ALT, but when it comes with the other 4 disks I am blank...

Here are my disks visible in OS,

disk 0 0/0/0/2/1.2.0 sdisk CLAIMED DEVICE Optiarc DVD RW AD-5170A
disk 1 0/0/0/2/0.6.0 sdisk CLAIMED DEVICE HP 73.4GST373454LC
disk 2 0/0/0/3/0.6.0 sdisk CLAIMED DEVICE HP 73.4GST373454LC
disk 3 1/0/0/2/0.6.0 sdisk CLAIMED DEVICE HP 73.4GST373454LC
disk 4 1/0/4/1/1.0.0 sdisk CLAIMED DEVICE HP 73.4GST373454LC
disk 5 1/0/4/1/1.2.0 sdisk CLAIMED DEVICE HP 73.4GST373454LC
disk 6 1/0/4/1/1.4.0 sdisk CLAIMED DEVICE HP 73.4GST373454LC
disk 7 1/0/4/1/0.2.0 sdisk CLAIMED DEVICE Optiarc DVD RW AD-5170A


A view of same disks from EFI :

fs0 : Acpi(HWP0002,PNP0A03,0)/Pci(2|0)/Scsi(Pun6,Lun0)/HD(Part1,SigC37DCDFC-4FD0-11DC-8002-D621
fs2 : Acpi(HWP0002,PNP0A03,0)/Pci(3|0)/Scsi(Pun6,Lun0)/HD(Part1,SigFE1167DC-2D0A-11DC-8002-D621
fs3 : Acpi(HWP0002,PNP0A03,100)/Pci(2|0)/Scsi(Pun6,Lun0)/HD(Part1,Sig7323F708-4320-11DC-8002-D6
fs4 : Acpi(HWP0002,PNP0A03,100)/Pci(2|0)/Scsi(Pun6,Lun0)/HD(Part3,Sig7323F73A-4320-11DC-8004-D6
fs5 : Acpi(HWP0002,PNP0A03,104)/Pci(1|1)/Scsi(Pun0,Lun0)/HD(Part1,Sig1AF397FC-44F9-11DC-8002-D6
fs6 : Acpi(HWP0002,PNP0A03,104)/Pci(1|1)/Scsi(Pun0,Lun0)/HD(Part3,Sig1AF3982E-44F9-11DC-8004-D6
fs1 : Acpi(HWP0002,PNP0A03,0)/Pci(2|1)/Scsi(Pun2,Lun0)/CDROM(Entry0)
blk0 : Acpi(HWP0002,PNP0A03,0)/Pci(2|0)/Scsi(Pun6,Lun0)
blk1 : Acpi(HWP0002,PNP0A03,0)/Pci(2|0)/Scsi(Pun6,Lun0)/HD(Part1,SigC37DCDFC-4FD0-11DC-8002-D621
blk2 : Acpi(HWP0002,PNP0A03,0)/Pci(2|0)/Scsi(Pun6,Lun0)/HD(Part2,SigC37DCE1A-4FD0-11DC-8003-D621
blk3 : Acpi(HWP0002,PNP0A03,0)/Pci(2|0)/Scsi(Pun6,Lun0)/HD(Part3,SigC37DCE38-4FD0-11DC-8004-D621
blk4 : Acpi(HWP0002,PNP0A03,0)/Pci(2|1)/Scsi(Pun2,Lun0)
blk5 : Acpi(HWP0002,PNP0A03,0)/Pci(2|1)/Scsi(Pun2,Lun0)/CDROM(Entry0)
blk6 : Acpi(HWP0002,PNP0A03,0)/Pci(2|1)/Scsi(Pun2,Lun0)/CDROM(Entry1)
blk7 : Acpi(HWP0002,PNP0A03,0)/Pci(3|0)/Scsi(Pun6,Lun0)

can anyone guide me if I want to boot from disk 6 ( 1/0/4/1/1.4.0 ) which fsN/blkN I have to select ?


Thanks,
Vijayy

4 REPLIES 4
Joelmel Roche
Valued Contributor
Solution

Re: Identifying Hardware in EFI

Hi,

Try to view in OS using this command
# ioscan -eCdisk

Regards,
Torsten.
Acclaimed Contributor

Re: Identifying Hardware in EFI

You don't told us the server model.

The pathes are in the manual, but as a workaround with the OS running you can do

ioscan -fne

the "e" will display the EFI pathes too.

Hope this helps!
Regards
Torsten.

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Popy
Regular Advisor

Re: Identifying Hardware in EFI

got it. Thank you.
TY 007
Honored Contributor

Re: Identifying Hardware in EFI

Hello Vijay,

>> when it comes with the other 4 disks I am blank

Be careful when dealing with efi, initial map "may not" show the correct number of disks connected to the system.

In efi shell, always remember to issue command: "search all"

Thanks