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Full Discussion: LibC.a usage in /usr/lib/boot/chrp.disk.proto
Operating Systems AIX LibC.a usage in /usr/lib/boot/chrp.disk.proto Post 302774339 by MichaelFelt on Friday 1st of March 2013 03:37:16 PM
Old 03-01-2013
The answer to your question, more to the point, is that libC.a, or any other file, is not needed unless the file is needed for the system boot.

So, until you add something that is used during the boot phase (e.g., a new device driver) it will not make any difference - because this file system gets mounted over by the disk version of / (root) (phase 2 of AIX boot, aka varyonvg rootvg phase).

To know more about the file layout, and the meaning of the content entries - read the manpage proto

excerpt:
Code:
Description

       The proto command creates a prototype file for a file system or part of
       a file system. The mkfs command uses the prototype file as input to
       construct a file system according to a predefined template. The
       prototype file consists of a recursive directory listing of every file
       on the file system, with its owner, group, and protection. It also
       contains the file from which the prototype file is to be initialized,
       formatted as described in the mkfs command.

 

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LEARN ABOUT MOJAVE

installboot

installboot(1M) 														   installboot(1M)

NAME

       installboot - install bootblocks in a disk partition

SYNOPSIS

       installboot bootblk raw-disk-device

       The boot(1M) program, ufsboot, is loaded from disk by the bootblock program which resides in the boot area of a disk partition.

       The  ufs  boot objects are platform-dependent, and reside in the /usr/platform/platform-name/lib/fs/ufs directory. The platform name can be
       found using the -i option of uname(1).

       The installboot utility is a SPARC only program. It is not supported on the  architecture.  users should use installgrub(1M) instead.

       bootblk	       The name of the bootblock code.

       raw-disk-device The name of the disk device onto which the bootblock code is to be installed; it must be a character device which is  read-
		       able and writable. Naming conventions for a SCSI or IPI drive are c?t?d?s? and c?d?s? for an IDE drive.

       Example 1: Installing UFS Boot Block

       To install a ufs boot block on slice 0 of target 0 on controller 1 of the platform where the command is being run, use:

	      example# installboot /usr/platform/`uname -i`/lib/fs/ufs/bootblk 
		   /dev/rdsk/c1t0d0s0

       /usr/platform/platform-name/lib/fs/ufs

	   directory where ufs boot objects reside.

       /platform/platform-name/ufsboot

	   second level program to boot from a disk or CD

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

       od(1), uname(1), boot(1M), init(1M), kadb(1M), kernel(1M), monitor(1M), reboot(1M), rpc.bootparamd(1M), init.d(4), attributes(5)

WARNINGS

       The installboot utility fails if the bootblk or openfirmware files do not exist or if the raw disk device is not a character device.

								    11 Apr 2005 						   installboot(1M)
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