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<div class="moz-cite-prefix">On 6/25/2014 3:36 PM, Niles Rogoff
wrote:<br>
</div>
<blockquote
cite="mid:CAAdgGA=pkRpRHuPWv6=Odoh8GFMN08vOFPu3TQpMS=TbaPhujQ@mail.gmail.com"
type="cite">
<div dir="ltr">><span
style="font-family:arial,sans-serif;font-size:13.513513565063477px">tar
would be unable to correctly save the permissions on those
files</span>
<div><span
style="font-family:arial,sans-serif;font-size:13.513513565063477px"><br>
</span></div>
<div><span
style="font-family:arial,sans-serif;font-size:13.513513565063477px">I
should clarify that this only applies to NTFS partitions.</span></div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">
On Wed, Jun 25, 2014 at 3:35 PM, Niles Rogoff <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:nilesrogoff@gmail.com"
target="_blank">nilesrogoff@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">He's saying if you, instead of copying sector
by sector, decided put all the files into a tar file, then
tar would be unable to correctly save the permissions on
those files.
<div><br>
</div>
<div>This would be in place of dd, and would not be able
to copy the boot sector of a device or partition</div>
</div>
<div class="HOEnZb">
<div class="h5">
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Wed, Jun 25, 2014 at 2:04
PM, John Hupp <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:ubuntu@prpcompany.com"
target="_blank">ubuntu@prpcompany.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">On
6/25/2014 1:12 PM, Nils Kassube wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0
0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
John Hupp wrote:<br>
<blockquote class="gmail_quote" style="margin:0
0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
And point well taken: it does seem to me that,
as a refinement of the<br>
initial suggested plan, gzip alone should
suffice since we are dealing<br>
with a single-file output from dd and not a
collection of files.<br>
</blockquote>
Well, you could use a command chain dd | gzip |
tar to split the output<br>
for several DVDs including a prompt for the next
medium.<br>
<br>
BTW: If you want to save data only, you
shouldn't use tar for ntfs<br>
partitions because tar doesn't know about the
ntfs permissions which<br>
different from the Unix permissions.<br>
<br>
<br>
Nils<br>
<br>
</blockquote>
<br>
Tar must do some processing of its source contents
then? The original suggestion for using dd in
this thread came from Niles Rogoff, and his
prescription was to use usplit. I don't know that
this command is native to Ubuntu, but I believe
split is. And if split merely does that, then it
seems like ntfs or unix permissions should be
preserved. Agree?<br>
<br>
And I think I still have this question lingering:
Does dd knows how to prompt for the next DVD (the
next split) during a restore operation?<span><font
color="#888888"><br>
<br>
<br>
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</font></span></blockquote>
</div>
<br>
</div>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</blockquote>
<br>
I am currently thinking this procedure may work:<br>
<br>
Wipe Windows partition free space: D/L Sdelete from <a
href="http://technet.microsoft.com/en-us/sysinternals/bb897443.aspx">http://technet.microsoft.com/en-us/sysinternals/bb897443.aspx</a>,
save to c:\windows\system32, and run:<br>
$ sdelete -z c:<br>
<br>
Wipe Linux partition free space: Boot *buntu Live disc, install
zerofree, and run:<br>
$ zerofree -v /dev/sda5<br>
<br>
Then for an external hard drive mounted at
/media/user/HD-PCTU2/laptop-image:<br>
<br>
$ cd /media/user/HD-PCTU2/laptop-image<br>
$ sudo -i<br>
# dd if=/dev/sda bs=64K | gzip -c -9 | split -b 4500M -
drivebackup.img.gz<br>
<br>
<hr size="2" width="100%"><br>
After that, I would have to manually burn the the various
drivebackup.img.gz files to DVD.<br>
<br>
Apart from corrections/improvements to the above, I still have two
questions:<br>
<span>1) For restore, if I boot a *buntu Live disc, just before
running a dd restoration command, can I remove the *buntu disc and
insert the first image DVD?<br>
</span>2) Does dd knows how to prompt for the next DVD (the next
split) during a restore operation<span><font color="#888888"><font
color="#000000">?</font><br>
</font></span>
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