Rsync for back up, external HD Post: 302825071

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Operating Systems OS X (Apple) Rsync for back up, external HD Post 302825071 by marek on Sunday 23rd of June 2013 09:52:35 AM

06-23-2013

Registered User

Thank you vbe and del for your hints!

Sorry for answering so late. I have had to read tons of manual pages of rsync, cp, dd, cpio, tar, rsnapshot.

My question was concerning an exact backup of my HD on a USB-HD and how to do it incrementally.

@drl

Off course rsync is also a tool for external HDs not only over network.

If I am right the command I will use in future is the following to make a incremental backup - you may still prevent a catastrophe with some helpful hints:

Code:

sudo rsync -tavu --delete / /Volumes/backup_2013/

The option -t preserves modification times. -a archive mode. -v verbose. -u update (only newer files are transferred - this switch I was looking for). --delete means all files which are deleted on the source HD are deleted on the destination too. Because I asked for an exact copy of my actual HD, this is the option I was looking for.

To make the external HD bootable (MacOS Lion) I have to make some researches again ... It is for a later post. (I am not sure, whether it will possible with an encrypted HD).

marek

---------- Post updated at 03:52 PM ---------- Previous update was at 02:23 PM ----------

To make the external HD bootable (only to make this thread complete for some MacOS X users):

First try: I opened the HD Utility in the Utilities folder. I was hoping to find something like "Make Disk Bootable", but no help. I will not claim, that there is no such "button". I simply did not find it.

I have no Install MacOS X Disk Image in my Applications Folder. My idea was, to run the installer over the external HD to make it bootable. But to download this large installer file over the App Store, just to make an external HD bootable, I thought that this is overkill. So I decided to try the following and it worked:

The old version of CCC (Carbon Copy Cloner), which is now payable, is working! I just have had to run a copy of the HD over the external HD ...

I expected from this forum, to help me to find the right switches for rsync, and perhaps tell me, how to make an external HD bootable over the Shell. Disappointed!

Hope this helps somebody out there

marek

marek

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LEARN ABOUT DEBIAN

bootcdbackup

BOOTCDBACKUP(1) 						   bootcd utils 						   BOOTCDBACKUP(1)

NAME

       bootcdbackup - create a bootable offline backup of a unix system

SYNOPSIS

       bootcdbackup [-i] [-v] [-s] [-c <config directory>] [-url <url] [-nomount] [-2diskconf <file>] <dev> <name> <builddir>

DESCRIPTION

       bootcdbackup  creates a offline backup from a installed system. You need a running bootcd to boot the system with. This CD/DVD is booted on
       the system and bootcdbackup creates a bootable CD/DVD with the bootcd kernel and the backup disk as tar-file.

       To restore or clone the system, boot the CD/DVD image and install it with bootcd2disk -c <name> on the system.

       bootcdbackup can try to discover the disk partition by searching for fstab on the given partition. A other way to backup the partition  ta-
       ble is the program bootcdmk2diskconf which creates a configuration file on a running system.

OPTIONS

       -i  The bootcdbackup runs in interactive mode and you can run each function manually. This option is useful for debugging.

       -v  The option "-v" (verbose) adds messages on running.

       -s  This option can be used to disable interactive questions and to try to ignore errors.

       -c <config directory>
	   The configuration directory which includes the file "bootcdbackup.conf", default is "/etc/bootcd".

       -url <url>
	   If bootcdbackup is slow on your system (because of a slow CD/DVD drive or the HP ILO virtual CD interface), you can use an image server
	   to get the image from.

	   bootcdbackup use the SWAP partition of your upcoming system as temporary space and copy the image from the configured image	server	to
	   this partition and use it as image.	The image server url is configured with this option.

       -nomount
	   The target disk should not be mounted and no search for fstab is done.

       --cpio
	   Normally  as  backup  tool  star  will be used if selinux files have to be backed up and cpio will be used if not. With this option the
	   usage of cpio can be forced.

       --star
	   Normally as backup tool star will be used if selinux files have to be backed up and cpio will be used if  not.  With  this  option  the
	   usage of star can be forced.

       -2diskconf <file>
	   The	parameter  configures a bootcd2disk.conf for the restore of the system done by bootcd2disk.  The configuration file can be created
	   with the command bootcdmk2diskconf.

	<dev>
	   Configures the device where bootcdbackup finds the file "fstab" and discover the configuration for the restore.

	<name>
	   The name of the backup (no blanks!) is used on the creation time and to restore the backup with bootcd2disk -c <name>.

	<builddir>
	   Builddir is an directory on the backup system where bootcdbackup build the backup CD/DVD. Space for the CD/DVD image,  for  compression
	   and the data is needed!

       All other configuration has to be done in the config files.

FILES

       /etc/bootcd/bootcdbackup.conf

       Configuration for bootcdbackup.

SEE ALSO

       Documentation in bootcdbackup.conf

       bootcdbackup.conf(5), bootcd(1), bootcdflopcp(1), bootcdwrite(1)

AUTHOR

       This  manual  page  was written by Bernd Schumacher <bernd.schumacher@hp.com> and Carsten Dinkelmann <Carsten.Dinkelmann@foobar-cpa.de> for
       the Debian GNU/Linux system (but may be used by others).

bootcdbackup							    2007-07-05							   BOOTCDBACKUP(1)