boot from alternate disk in AIX 6.1

Posted on 2011-03-09
Medium Priority
Last Modified: 2013-11-17
We were having some issues with configuring a instance of AIX 6.1 booting off of harddisk0, we installed a new copy fresh copy on harddisk1, which booted fine, and showed us the problem was with the inital install on harddisk0.
We would like to boot back off of harddisk0, what are the steps to do that? We have seen something using bootlist, it also appears I should be able to do this from the menu after getting F1, that is what I will attempt when
I am there,

Any pointers would be appreicated.
Question by:FITFSC
LVL 68

Accepted Solution

woolmilkporc earned 2000 total points
ID: 35080549

if your system is up and running you can change the bootlist directly:

bootlist -m normal hdisk0

Check your current settings with bootlist -m normal -o.

Don't worry if the same device shows up multiple times. This is due to multipathing.

Check with ipl_varyon -iv which bootable devices you have.

The location code of the bootable disks (obtained via "lscfg -l hdiskx") could be of interest here (see below).

You can also define your boot device via SMS (the "F1" thing you mentioned).

Boot into SMS -> 5 "Boot Options" -> 1 "Select Install/Boot Device" -> 5 "Hard Drive" -> (select your media type) -> (select your media adapter) -> (select the appropriate device)

To choose the right device the output of "lscfg -l hdiskx" from above could be helpful, because SMS doesn't know about hdisk names.



Expert Comment

ID: 35243195
You can use bootlist -m normal hdisk0 hdisk1 so that if aix is not able to boot from hdisk0 than it will alternately boot fom hdisk1 (on safe side)

Author Closing Comment

ID: 35316223
answered first, assigning the points.

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