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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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install-solaris(1M)													       install-solaris(1M)

NAME
install-solaris - install the Solaris operating system SYNOPSIS
install-solaris install-solaris invokes the Solaris Install program. Depending on graphical capability and available memory at the time of invocation, install-solaris invokes either a text-based installer or a graphical installer. The following minimum requirements for physical memory dictate which features are available during installation: For SPARC machines: 128 MB Minimum physical memory for all installation types 128 MB Minimum physical memory required for windowing system 384 MB Minimum physical memory required for graphical-based installation For x86 machines: 256 MB Minimum physical memory for all installation types 256 MB Minimum physical memory required for windowing system 512 MB Minimum physical memory required for graphical-based installation In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number of fea- tures available. install-solaris exists only on the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the for more details. install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the installation media. Refer to the for disk space requirements. Refer to the for more information on the various menus and selections. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcdrom (Solaris instal- | | |lation media) | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ pkginfo(1), install(1M), pkgadd(1M), attributes(5) It is advisable to exit install-solaris by means of the exit options in the install-solaris menus. 23 Sep 2005 install-solaris(1M)
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