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Operating Systems Solaris Restoring a system from a backup Post 302891060 by hicksd8 on Monday 3rd of March 2014 03:01:54 PM
Old 03-03-2014
This only applies to SPARC and UFS filesystems

The trick is to make Solaris do most of the work otherwise there will be a very large number of files to modify. So, at the very base level, it goes like this.........

Planning....count number of filesystems, get all filesystem sizes, record all VTOC's, and amount of swap configured.

Set up a 'third node' to take the ufsdump(s) and create the share.

Use 'fssnap' and 'ufsdump' to dump all filesystem(s) out to the third node.

Install the same version of Solaris on the target machine (just to ensure that it will run, OBP, hardware, compatibility, and all that). Whilst doing that get the name/type of the ethernet inferface.

Boot the target node from DVD (single-user) and format, label, and write the VTOCS for the filesystem(s) and swap.

'newfs' all the non-swap filesystems.

Manually, plumb, address, and 'up' the network interface, and mount the remote filesystem on the third node containing the ufsdumps.

'ufsrestore' all the filesystems onto the target node.

Write out the bootblock ('installboot') for this platform.

CAREFULLY modify the vfstab on the target node to ensure it tells Solaris where to find all the filesystems.

Modify the 'system' file to suit the platform.

Rename the 'hostname.<Ethernet interface>' file to the new suffix (interface name).

Delete the old device nodes (/dev/dsk/c*, /dev/rdsk/c*, /dev/cfg/c* , etc) and recreate to suit the target platform (devfsadm).

Double check everything and when happy, shutdown the system.

If you haven't changed the ip address on this configuration ensure the original machine is shut down. This will use the same ip address.

On the very first boot, ensure to use the -r switch:

Code:
boot -r

to warn Solaris that it needs to reconfigure to sort out our mess. Make a coffee and wait for Solaris to sort everything out.

I hope that helps. If you need any of this expanding as you are doing it then post your questions back.

Last edited by hicksd8; 03-03-2014 at 04:24 PM..
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trigger(8)						      System Manager's Manual							trigger(8)

Name
       trigger - trigger a target node to request a down-line load

Syntax
       /etc/trigger node [ options ]

Description
       The command triggers the bootstrap mechanism of a target node, causing the target to request a down-line load.  Once a target node is trig-
       gered, it loads itself in whatever manner its primary loader is programmed to operate.  The target node could request a down-line load from
       the host that just triggered it or from another adjacent node, or the target node could load itself from its own mass storage device.

       The  node argument is the name or address of the target node.  A node name consists of from one to six alphanumeric characters.	For single
       networks, a node address consists of a decimal integer (1-1023).  For multiple networks, a node address consist	of  two  decimal  integers
       (n.n), where the first indicates the network number (1-63), and the second indicates the node address (1-1023).

       The  command requires the identification of the service circuit over which the load is performed, the Ethernet hardware address of the tar-
       get node, and the service password needed to gain access to the target.	This information is included in the nodes database entry  for  the
       target node.  A node entry is defined with the command.	For further information, see Alternatively, you can choose not to include a target
       node's service password in the nodes database for security reasons.  You must therefore specify this value in the command line by using the
       -p option.

Options
       -p     Uses the specified service and password (next arguments) in accessing the target node.

Examples
       This command triggers node Bangor to issue a down-line load request:
       # /etc/trigger bangor <RET>

See Also
       mop_mom(8), addnode(8), load(8), remnode(8), getnode(8), ccr(8)
       Guide to Local Area Transport Servers

																	trigger(8)
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