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Operating Systems AIX How to restore rootvg archive after AIX 6.1 crash Post 302523318 by +Yan on Wednesday 18th of May 2011 11:37:06 AM
Old 05-18-2011
Hello again. Thank you for your replays.

I was able to restore the machine in the following (not professional) way:
1. Install AIX 6.1 on the same partition. (the old install was completly destroyed).
2. Configure the network and access the NFS.
3. Change current directory to / (root).
4. Execute: restore -xf /NFS_path_to_the_backup.
5. reboot.
It worked like charm.
However it have many obvious drawbacks. One of them is that I needed to expand the FS for /, /usr,/var and /opt. This directories contained valuable data that I needed to restore.
I spend some time today experimenting with archive and boot from DVD procedure .
mkdvd turned out to be excellent program for generating archive DVDs. Especially when I use -S option to generate ISO only.
I have few questions:
1. What will happen when the ISO image exceeds the largest DVD capacity ?
2. I tried to use bootp from SMS menu, and it turned out that DHCP request are correctly understood by our linux DHCP server. Also the server correctly understod the bootp requests. Unfortunatly I do not know how AIX boot process is working (i.e. what boot file to send in response to bootp requests). We are using PXE + tftp to install Linux machines fully automated. My question is can I use this PXE server instead of configuring additional NIM server only for AIX OS ? I only want to be able to boot this DVD images over the network. As long as they are standard I may mount them on the DHCP server, and serve the files that AIX needs to install itself.

Here is what I found concerning VIOS installation from the PXE server.

IBM Redbooks | VIOS Network Install from Linux Server

I intend to adapt this method for booting AIX 6.1.
 

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restoretextmode(1)						Svgalib User Manual						restoretextmode(1)

NAME
restoretextmode - save or restore the SVGA registers for textmode. SYNOPSIS
restoretextmode {-r|-w} filename DESCRIPTION
The state of the SVGA is written to or restored from filename using the vga_gettextmoderegs(3) and vga_settextmoderegs(3) functions. As of this writing this file is 385 bytes long but this might change with future versions. Please do not fiddle with the contents of the file except when you know what you do. It might even result in hardware damage. Because of that, you should think twice to make this command available to all users on your system. The purpose of this program is usually to recover from a crashed console due to an svgalib, Xfree or other program bug. First save the state of the SVGA card when on a text console. After the crash restore this state. The savetextmode(1) and textmode(1) script makes this procedure very easy. OPTIONS
-w filename write the SVGA state to the file filename. -r filename restore the SVGA state from the file filename. SEE ALSO
svgalib(7), vgagl(7), libvga.config(5), vga_gettextmoderegs(3), vga_settextmoderegs(3), dumpreg(1), convfont(1), fix132x43(1), restore- font(1), restorepalette(1), runx(1), savetextmode(1), setmclk(1), textmode(1). AUTHOR
This manual page was edited by Michael Weller <eowmob@exp-math.uni-essen.de>. The exact source of the referenced utility as well as of the original documentation is unknown. It is very likely that both are at least to some extent are due to Harm Hanemaayer <H.Hanemaayer@inter.nl.net>. Occasionally this might be wrong. I hereby asked to be excused by the original author and will happily accept any additions or corrections to this first version of the svgalib manual. Svgalib (>;= 1.2.11) 2 Aug 1997 restoretextmode(1)
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