06-21-2013
Well Marek I suppose the lack of response comes from the usage you make of rsync... designed for remote copy...
And so most of us to do what you do would use cpio (or even tar...) or dd for exact copies
As to your Q3, with rsync like that you can forget about it... but I would give a try with dd ( your external disk must be same size or bigger, only if bigger, the difference will be lost...) I cant promise anything since I only did this on scsi devices almost identical or same standards... but it be worth trying ( but will it damage your external disk??). For if it works you would have an exact copyand then you could try to boot from it, if this works, you can return to your rsync for following backups I suppose
My 2 cents...
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rdiff(1) General Commands Manual rdiff(1)
NAME
rdiff - compute and apply signature-based file differences
SYNOPSYS
rdiff [options] signature old-file signature-file
rdiff [options] delta signature-file new-file delta-file
rdiff [options] patch basis-file delta-file new-file
USAGE
You can use rdiff to update files, much like rsync does. However, unlike rsync, rdiff puts you in control. There are three steps to
updating a file: signature, delta, and patch.
DESCRIPTION
In every case where a filename must be specified, - may be used instead to mean either standard input or standard output as appropriate.
Be aware that if you do this, you'll need to terminate your options with -- or rdiff will think you are passing it an empty option.
RETURN VALUE
0 for successful completion, 1 for environmental problems (file not found, invalid options, IO error, etc), 2 for a corrupt file and 3 for
an internal error or unhandled situation in librsync or rdiff.
SEE ALSO
librsync(3)
AUTHOR
Martin Pool <mbp@samba.org>
The original rsync algorithm was discovered by Andrew Tridgell.
rdiff development has been supported by Linuxcare, Inc and VA Linux Systems.
$Date: 2002/01/25 21:25:34 $ rdiff(1)