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Full Discussion: copying a large filesystem
Top Forums UNIX for Dummies Questions & Answers copying a large filesystem Post 41635 by TioTony on Friday 10th of October 2003 12:23:35 AM
Old 10-10-2003
This is what I would do (not that the other recommendations wouldn't work).

1. Create a filesystem on the new disk, maybe call it newhome.
2. Make sure everyone is logged out and stop sharing the current home directory.
3. Use this tar command to copy everything:

tar cvfp - /export/home/* | (cd /newhome; tar xvfp - )

You may have to adjust the paths and may not want to use the 'v' option on the tar commands. I like the v so I can see the progress.

4. Share the newhome as /export/home.

I use this often when moving files between filesystems on the same system. We have 1 filesystem shared out as a home directory per group in combination with NIS. We often have people change groups which requires us to move their home directory to a different share. I just make sure they log out, rename their original home directory, move it with tar, update their passwd entry, push the changes, and they are ready to go.
 

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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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