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System Management Guide:
Operating System and Devices
Re-create a Corrupted Boot Image
The following procedure describes how to identify a corrupted boot image
and re-create it. If your machine is currently running and you know the boot
image has been corrupted or deleted, re-create the boot image by running the bosboot command with root authority.
Attention: Never reboot the system when you suspect the boot image is corrupted.
The following procedure assumes your system is not rebooting correctly
because of a corrupted boot image. If possible, protect your system from a
possible loss of data or functionality by scheduling your downtime when it
least impacts your workload.
- Insert the product media into the appropriate drive.
- Power on the machine following the instructions provided with your system.
- From the System Management Services menu, select Multiboot.
- From the next screen, select Install From.
- Select the device that holds the product media and then select Install.
- Select the AIX version icon.
- Follow the online instructions until you can select which mode you use
for installation. At that point, select Start Maintenance
Mode for System Recovery.
- Select Access a Root Volume Group.
- Follow the online instructions until you can select Access this Volume Group and start a shell.
- Use the bosboot command to re-create the boot image. For example:
bosboot -a -d /dev/hdisk0
If the command fails and you receive the following message:
0301-165 bosboot: WARNING! bosboot failed - do not attempt to boot device.
Try to resolve the problem using one of the following options, and then
run the bosboot command again until you have successfully
created a boot image:
- Delete the default boot logical volume (hd5) and then create a new hd5.
Or
- Run diagnostics on the hard disk. Repair or replace, as necessary.
If the bosboot command continues to fail, contact
your customer support representative.
Attention: If the bosboot command fails while creating a boot image, do not reboot your machine.
- When the bosboot command is successful,
use the reboot command
to reboot your system.
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