Summary : Can't set "devalias" in OPEN BOOT 2.0

From: Tristan Hau (
Date: Mon Oct 19 1998 - 20:40:46 CDT

To :
Sub : Can't set "devalias" in OPEN BOOT 2.0
Org :

Dear Mgrs,

  SS20 with Openboot version 2.0.
  I have an 4.2G Unipack which hooked up to SS20. The ID is set to
5. Of course I want it to be my default boot device so I did the

ok devalias

screen /iommu@f.....
disk /iommu@f/sbus/espdma@f,4000000/esp@f,8000000/sd@3,0 (My old boot
tape0 /io........./st@4,0
tape1 /io........./st@5,0

ok devalias disk5 /iommu/sbus/espdma@f,40000/esp@f,800000/sd@5,0
ok nvstore
ok devalias (Shows alias disk5!)
ok boot disk5 (fine and get the login prompt)

 init 0

ok devalias

   The disk5 no longer there ...

   What's wrong with the above procedures ???

Answer :

ok nvalias disk5 /iommu/sbus/espdma@f,40000/esp@f,800000/sd@5,0
ok setenv boot-device disk5
ok reset
ok nvalias disk5 /iommu/sbus/espdma@f,40000/esp@f,800000/sd@5,0
ok reset
Do a <STOP-A> after the banner is displayed. (devalias should now
display disk5.)
ok boot disk5

   Thanks for : "Jeffrey C. Keyser" <>,
       (Michael Wang)
                Teague, Tony" <>
   Before asking this question, I went thru' the "OPENBOOT Quick
Reference" in It said :

   devalias alias device-path : Define an alias representing the device
path. If an alias with the same name already exists, the new value
                        supersedes the old.

   Anyway, thanks for all the mgrs mentioned above.



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