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Full Discussion: copying a large filesystem
Top Forums UNIX for Dummies Questions & Answers copying a large filesystem Post 41622 by thehoghunter on Thursday 9th of October 2003 04:38:12 PM
Old 10-09-2003
As far as the NIS part of your question - if you wanted to bring the one drive up and push users over to it - you would want to change the auto_home map
I moved from a Network Applicance server to a SUN E450 for home directories -
Original map:
-bg,soft,intr toast1.my.com:/vol/home0/home/jfneal
-bg,soft,intr toast1.my.com:/home/&


Final map:
-bg,soft,intr toast1.my.com:/vol/home0/home/jfneal
-bg,soft,intr toaster.my.com:/home1/&

Note that the server changes from toast1 to toaster and /home to /home1. This left all the 'old' home directories intact so I had an on-line backup on the old system. Even if your disk is on the same system you can leave it around for awhile in case users aren't off completely. I moved them during the day and the only ones I had a problem with were the ones that normally never log out (developers and SAs).
{For all of you about to say I should have waited - this was brought about due to upper management stating "You will move out of this building by the end of the week". It actually went pretty smooth considering they had no concern for our problems for doing it - and of course we got big raises and bonuses for our hard work...they just seem to have gotten lost in the mail - but they saved their millions in rent - I bet they got bonuses!}.
 

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LEARN ABOUT OPENSOLARIS

root_archive

root_archive(1M)					  System Administration Commands					  root_archive(1M)

NAME

       root_archive - manage bootable miniroot archives

SYNOPSIS

       /boot/solaris/bin/root_archive  pack archive root

       /boot/solaris/bin/root_archive  unpack archive root

       /boot/solaris/bin/root_archive  packmedia solaris_image root

       /boot/solaris/bin/root_archive  unpackmedia solaris_image root

DESCRIPTION

       The  root_archive  utility  is  used to manage bootable miniroot archives and is currently only available on x86 platforms. The utility can
       pack and unpack boot/root archives in both ufs and hsfs (iso9660) format. It will always generate ufs archives.

       root_archive also uses the lofi file driver to export a file as a block device (see lofi(7D)) and mount to mount or  unmount  file  systems
       and remote resources (see mount(1M)). root_archive requires the same privileges that are needed to run these commands.

SUBCOMMANDS

       The root_archive command has the following subcommands:

       pack archive root    Pack from the image found under the root directory to the archive.

       unpack archive root

	   Unpack from the archive to an unpacked image under the root directory.

       packmedia solaris_image root

	   Pack the solaris image to the root directory.

       unpackmedia solaris_image root

	   Unpack the solaris image from the root directory.

       For  packmedia  and  unpackmedia,  other items that do not go into the ramdisk image are copied or uncopied (see cpio(1)) as well. Specifi-
       cally, this includes all the packaging databases needed for pkgadd and the other packaging utilities to succeed which are not used  in  the
       running and hence pruned to conserve memory.

EXAMPLES

       Example 1 Unpacking the Solaris x86 install image

       The following command unpacks the current Solaris image from the root directory:

	 # root_archive unpackmedia 
	 /export/nv/solarisdvd.nvx_dvd/latest /export/Boot

       Where  /export/nv/solarisdvd.nvx_dvd/latest  represents	a path to a Solaris x86 install image and /export/Boot is a directory that will be
       purged or created, as necessary.

       Example 2 Packing the Solaris x86 install image

       The following command packs the current Solaris image to the root directory:

	 # root_archive packmedia 
	 /export/nv/solarisdvd.nvx_dvd/latest /export/Boot

EXIT STATUS

       The following exit values are returned:

       0    The command completed successfully.

       1    The command exited due to an error.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Stable			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cpio(1), bootadm(1M), mount(1M), attributes(5), lofi(7D)

SunOS 5.11							    26 Sep 2005 						  root_archive(1M)
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