From: Renison, Rick (rick.renison@EDS.COM)
Date: Tue Jan 06 2004 - 16:02:12 EST
My thought was to reserve room for any future expansion.
> -----Original Message-----
> From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU]On Behalf Of
> Paul. Vanchope
> Sent: January 5, 2004 2:57 AM
> To: aix-l@Princeton.EDU
> Subject: I have a problem about the /usr/bin/mksysb script file
>
>
> i know that the a mksysb tape was devided into 4 parts :
> 1.BOS boot image (included Kernel Device Drivers)
> 2.mkinsttape image (included /tapeblksz ,./image.data, ./bosinst.data,
> commands)
> 3.dummy .toc ( some characters added in order to be
> compatible to a product
> tape)
> 4.rootvg data (your real data in rootvg, such as filesystem and so on)
>
> When i vi /usr/bin/mksysb (mksysb is a script file)
> i find the mksysb was executed according to the following
> sequences before
> backup the real data in rootvg :
>
> a) # put the bosboot image on the tape
>
> b) # put a "dummy" bosboot image on the tape
>
> c) # put the bosinst image on the tape
>
> d) # place a dummy toc on the tape
>
> in the above 4 steps, i can understand step a, c , d , But
> doesn't know why
> to execute step b ? Why a dummy bosboot image must be put on
> the tape ?
>
> Please give some suggestions. Thanks in advance.
>
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