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Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
Boot problems 85
Boot problems 4
Generally speaking, most boot problems are the result of one of two
problems: either you are trying to boot from the wrong device or the
primary boot device is not available. This section suggests remedies for
those situations.
Trying to boot from
the wrong device
4
If you are trying to boot from the wrong device, you must change the boot
device. Here is a quick way to do that:
1. Reboot:
# /usr/sbin/shutdown -y -g0 -i0
2. From the
ok
prompt enter:
ok> printenv boot-device
The system responds:
boot-device
<disk>
where
<device>
is either the word
disk,
indicating the primary
boot device, or the word
bootdevice2,
indicating the alternate
boot device. (This may be followed by additional device names.)
To change the boot device, enter the following command:
You should have set up
bootdevice2
as the alternate boot device
when you installed disk mirroring.
Primary boot
device is not
available
4
If the primary boot device is not available, you must change to the
secondary boot device.
Changing to the secondary boot device is a matter of entering, from the
ok
prompt, the following command:
ok> setenv boot-device bootdevice2
You should have set up
bootdevice2
as the alternate boot device when
you installed mirroring.
ok setenv boot-device bootdevice2
- or -
ok setenv boot-device disk