Stale PPs in AIX, failed disks.. how to replace? Post: 302926079

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Operating Systems AIX Stale PPs in AIX, failed disks.. how to replace? Post 302926079 by bakunin on Friday 21st of November 2014 02:27:31 AM

11-21-2014

Registered User

Quote:

Originally Posted by c3rb3rus

In turn, if I now run "bootlist -m normal -o" I get..

Code:

hdisk10 blv=hd5 pathid=0
hdisk14 pathid=0

Why is it showing there? I am concerned if a reboot happens I may not be able to boot.. how can I remove it and assign hdisk20 which is the replacement for hdisk14 in rootvg... or do I need to do anything further at this point?

There are two commands you need to know: "bosboot" and "bootlist".

With "bootlist" you can set (or display) the order (in NVRAM) in which devices are used to boot from. There are basically 2 lists of such boot devices, "normal" and "service". There is a "key position" that determines which boot list is getting used. Back then, in the times of physical machines, this was really a lock with a key and the key could be in one of 3 possible positions, "normal", "service" (sometimes named "maint") and "lock". Today this is only a virtual construct, but the terminology stuck.

With "bosboot" you bring a boot image to boot from onto a device. This copies the code that is executed during the boot onto the device you designated as boot device with "bootlist".

I suggest you read carefully the man pages of both commands, then read them again. You can render the system unusable with these commands, so spend some time and effort to really, firmly understand what they are doing. Only then use them to alter the boot list. (You will need both of them - proceed only if you understand why.)

I hope this helps.

bakunin

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installgrub

installgrub(1M)                                                                                                                    installgrub(1M)

NAME

       installgrub - install GRUB in a disk partition or a floppy

SYNOPSIS

       /sbin/installgrub [-fm] stage1 stage2 raw-device

       The installgrub command is an -only program. GRUB stands for GRand Unified Bootloader.

       installgrub  installs  GRUB  stage  1  and  stage  2  files on the boot area of a disk partition. If you specify the -m option, installgrub
       installs the stage 1 file on the master boot sector of the disk.

       The installgrub command accepts the following options:

       -f

           Suppresses interaction when overwriting the master boot sector.

       -m

           Installs GRUB stage1 on the master boot sector interactively.

       The installgrub command accepts the following operands:

       stage1

           The name of the GRUB stage 1 file.

       stage2

           The name of the GRUB stage 2 file.

       raw-device

           The name of the device onto which GRUB code is to be installed. It must be a character device that is readable and writable.  For  disk
           devices,  specify  the  slice  where  the  GRUB  menu  file  is  located.  (For Solaris it is the root slice.) For a floppy disk, it is
           /dev/rdiskette.

       Example 1: Installing GRUB on a Hard Disk Slice

       The following command installs GRUB on a system where the root slice is c0d0s0:

       example# /sbin/installgrub /boot/grub/stage1 
                /boot/grub/stage2 /dev/rdsk/c0d0s0

       Example 2: Installing GRUB on a Floppy

       The following command installs GRUB on a formatted floppy:

       example# mount -F pcfs /dev/diskette /mnt
       # mkdir -p /mnt/boot/grub
       # cp /boot/grub/* /mnt/boot/grub
       # umount /mnt
       # cd /boot/grub
       # /sbin/installgrub stage1 stage2 /dev/rdiskette

       /boot/grub

           Directory where GRUB files reside.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+
       |Interface Stability          |Evolving                     |
       +-----------------------------+-----------------------------+

       boot(1M), fdisk(1M), fmthard(1M), kernel(1M), attributes(5)

       Installing GRUB on the master boot sector (-m option) overrides any boot manager currently installed on the machine. The system will always
       boot the GRUB in the Solaris partition regardless of which fdisk partition is active.

                                                                    24 May 2005                                                    installgrub(1M)

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