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Full Discussion: Dump and Restore
Top Forums UNIX for Dummies Questions & Answers Dump and Restore Post 302331895 by mojoman on Tuesday 7th of July 2009 12:35:45 PM
Old 07-07-2009
Quote:
Originally Posted by methyl
Please state your Operating System and version. This is going to be O/S specific.
Do you want to copy a Bootable System Partition or a Data Partition?
Can both partitions be mounted (i.e. they are not raw filesystems)?
What is the filesystem type (e.g. VXFS, UFS)?


The general solution for mounted Data Partitions is to use "cpio -p". The switches for cpio vary from O/S to O/S. Some need a large block size (say 64kb) for speed - some don't. The switch for not traversing filesystem boundaries varies too (some are "-mount", some are "-xdev").

Code:
For example.
Where /source_mountpoint is a quiescent mounted filesystem.
Where /destination_mountpoint is an empty filesystem.

cd /source_mountpoint
find . -xdev -print | cpio -pdumv /destination_mountpoint


I would be using Knopix 5.x

---------- Post updated at 12:35 PM ---------- Previous update was at 12:33 PM ----------

Quote:
Originally Posted by vbe
I just tested for you the use of tar for this purpose (it works (on hpux...))
Code:
tar -cvf - testdir |$(cd /ant/vbe/tartest; tar -xvf -)

To answer your initial question, dump/restore is used for filesystems as a whole, so it may not be your intention, the idea is to have a filesystem backup not a directory content copy...
So if we use dump/restore would be have the problem we originally encountered when the dd command made the new hard drive 143 GB partition into a 63GB partition?
 

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REPARTITION(8)						      System Manager's Manual						    REPARTITION(8)

NAME
repartition - load a partition table SYNOPSIS
repartition device [partition-file] DESCRIPTION
Repartition uploads a new partition table for the partitions of device. The table is obtained from the first sector of partition-file if given, device otherwise. Device may refer to the whole drive or a primary partition, depending on whether you want to upload a partition or a subpartition table. The partitions will be truncated to fit within the enclosing device like the disk driver does, unless the numbers are coming from partition-file. EXAMPLES
repartition /dev/hd0 repartition /dev/hd4 /etc/hd4.table Reload the partition table of drive 0 setting /dev/hd[1-4], and the subpartition table of /dev/hd4 setting /dev/hd4[a-d] using a file. The latter may be useful if you need more than the 4 subpartitions a single Minix partition gives you. DIAGNOSTICS
The new table is printed on standard output. FILES
/dev/hd[0-9] SEE ALSO
hd(4), part(8). BUGS
The disk must be in use for the changes to stick. The partition table of an idle disk will be reloaded on the first open. AUTHOR
Kees J. Bot (kjb@cs.vu.nl) REPARTITION(8)
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