'Re: [Veritas-bu] Restoring windows NBU backup to Linux/UNIX using'

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List: veritas-bu
Subject: Re: [Veritas-bu] Restoring windows NBU backup to Linux/UNIX using
From: "Rockey Reed" <rockey_reed () symantec ! com>
Date: 2007-05-28 22:34:02
Message-ID: 9DC214460034D54AA0781BBBB3FD313B966FB8 () TUS1XCHCLUPIN12 ! enterprise ! veritas ! com
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Curtis,

You won't be proven wrong unless someone does some serious voodoo and
all the planets and starts align exactly right.  Even so the process
would not be repeatable.  Not to get real technical, but the reason is
the way the file systems are written, NTFS verse any other FS equals no
reliable restore.  LINUX is backed up with a STANDARD policy, and
Windows is backed up with the WINDOWS-PC  policy for a reason and that
was in the previous sentence.  

Now you may restore LINUX to a FAT partition and have some luck, but I
haven't really tested it, so YMMV.

Thanks, 
Rockey J. Reed 
You're not obligated to win. You're obligated to keep trying to do the
best you can every day.  Marian Wright Edelman

________________________________

From: veritas-bu-bounces@mailman.eng.auburn.edu
[mailto:veritas-bu-bounces@mailman.eng.auburn.edu] On Behalf Of Curtis
Preston
Sent: Saturday, May 26, 2007 11:49 AM
To: Jeff Lightner; veritas-bu@mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] Restoring windows NBU backup to linux/UNIX
usingGNUtar

I'd love to be proven wrong, but we looked into this a while back, and
it looks like you can't recovery a Windows NBU backup on Linux using
GNUtar.

---

W. Curtis Preston

Author of O'Reilly's Backup & Recovery and Using SANs and NAS

VP Data Protection

GlassHouse Technologies

________________________________

From: veritas-bu-bounces@mailman.eng.auburn.edu
[mailto:veritas-bu-bounces@mailman.eng.auburn.edu] On Behalf Of Jeff
Lightner
Sent: Friday, May 25, 2007 6:02 AM
To: veritas-bu@mailman.eng.auburn.edu
Subject: [Veritas-bu] Restoring windows NBU backup to linux/UNIX using
GNUtar

I just saw this in another forum and was curious if anyone has an
answer.  It seems likely the E, U, Q, T are probably drive letters from
Windows that of course mean nothing in Linux/UNIX.   

NOTE:  

The question is NOT how to do alternate path restore using NBU - it is
specifically asking can the tape be extracted using GNU-tar on a Linux
(Centos 4) box:

The OP's Q:

I can find a tar readable file header using "tar -tvf /dev/tape1 -b 500"
but unfortunatly the directory appears to be corrupted.

I am attempting to recover a windows backup onto centos 4.

I get the following output from tar;

tar: Record size = 128 blocks
?rwx------ / 80 2007-04-21 01:03:40 \001 unknown file type `E'
?rwx------ root/root 0 2007-04-21 01:03:40 /L/ unknown file type `U'
tar: Skipping to next header
?rwx------ root/root 0 2007-04-21 01:03:40 unknown file type `Q'
?rwx------ / 216 2007-04-21 01:03:40 \001 unknown file type `E'
?rwx------ root/root 0 2007-04-20 23:30:00 /L/Backups Database/ unknown
file type `U'
tar: Skipping to next header
?rwx------ root/root 0 2007-04-20 23:30:00 unknown file type `Q'
?rwx------ root/root 268386 2007-04-20 09:00:00 \001 unknown file type
`T'
?rwx------ root/root 0 2007-04-20 09:00:00 unknown file type `Q'
?rwx------ root/root 727 2007-04-17 15:00:03 \001 unknown file type `T'
?rwx------ root/root 0 2007-04-17 15:00:03 unknown file type `Q'
?rwx------ root/root 32563712 2007-04-20 21:18:49 \001 unknown file type
`T'
tar: Skipping to next header
tar: Archive contains obsolescent base-64 headers
tar: Error exit delayed from previous errors

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<div class=Section1>

<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>Curtis,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>You won&#8217;t be proven wrong unless
someone does some serious voodoo and all the planets and starts align exactly
right.&nbsp; Even so the process would not be repeatable.&nbsp; Not to get real \
technical, but the reason is the way the file systems are written, NTFS verse any \
other FS equals no reliable restore.&nbsp; LINUX is backed up with a STANDARD policy, \
and Windows is backed up with the WINDOWS-PC&nbsp; policy for a reason and that was \
in the previous sentence.&nbsp; <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>Now you may restore LINUX to a FAT
partition and have some luck, but I haven&#8217;t really tested it, so \
YMMV.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><o:p>&nbsp;</o:p></span></font></p>

<div>

Thanks, 
Rockey J. Reed 
You're
not obligated to win. You're obligated to keep trying to do the best you can
every day.&nbsp; Marian Wright \
Edelman<o:p></o:p>

</div>

<div>

<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>

<hr size=2 width="100%" align=center tabindex=-1>

</span></font></div>

<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
veritas-bu-bounces@mailman.eng.auburn.edu \
[mailto:veritas-bu-bounces@mailman.eng.auburn.edu] <b><span \
style='font-weight:bold'>On Behalf Of </span></b>Curtis Preston<br> <b><span \
style='font-weight:bold'>Sent:</span></b> Saturday, May 26, 2007 11:49 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Jeff Lightner;
veritas-bu@mailman.eng.auburn.edu<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Veritas-bu]
Restoring windows NBU backup to linux/UNIX usingGNUtar</span></font><o:p></o:p></p>

</div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I&#8217;d love to be proven wrong, but we
looked into this a while back, and it looks like you can&#8217;t recovery a
Windows NBU backup on Linux using GNUtar.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<div>

<p class=MsoNormal><font size=3 color=navy face="Palatino Linotype"><span
style='font-size:12.0pt;font-family:"Palatino \
Linotype";color:navy'>---<o:p></o:p></span></font></p>

W. Curtis
Preston<o:p></o:p>

<p class=MsoNormal><font size=3 color=navy face="Palatino Linotype"><span
style='font-size:12.0pt;font-family:"Palatino Linotype";color:navy'>Author of
O'Reilly's <i><span style='font-style:italic'>Backup &amp; Recovery</span></i>
and <i><span style='font-style:italic'>Using SANs and \
NAS</span></i><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 color=navy face="Palatino Linotype"><span
style='font-size:12.0pt;font-family:"Palatino Linotype";color:navy'>VP Data
Protection<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 color=navy face="Palatino Linotype"><span
style='font-size:12.0pt;font-family:"Palatino Linotype";color:navy'>GlassHouse
Technologies<o:p></o:p></span></font></p>

</div>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<div>

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face="Times New Roman"><span style='font-size:12.0pt'>

<hr size=2 width="100%" align=center tabindex=-1>

</span></font></div>

<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
veritas-bu-bounces@mailman.eng.auburn.edu
[mailto:veritas-bu-bounces@mailman.eng.auburn.edu] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Jeff Lightner<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, May 25, 2007 6:02 AM<br>
<b><span style='font-weight:bold'>To:</span></b> \
veritas-bu@mailman.eng.auburn.edu<br> <b><span \
style='font-weight:bold'>Subject:</span></b> [Veritas-bu] Restoring windows NBU \
backup to linux/UNIX using GNUtar</span></font><o:p></o:p></p>

</div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I
just saw this in another forum and was curious if anyone has an answer.&nbsp;
It seems likely the E, U, Q, T are probably drive letters from Windows that of
course mean nothing in Linux/UNIX.&nbsp;&nbsp;</span></font> <o:p></o:p></p>

<p><font size=2 face=Arial><span \
style='font-size:10.0pt;font-family:Arial'>NOTE:&nbsp;</span></font> <o:p></o:p></p>

<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>The
question is NOT how to do alternate path restore using NBU</span></font> <font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>&#8211; \
it</span></font> <font size=2 face=Arial><span \
style='font-size:10.0pt;font-family:Arial'>is specifically asking can the tape be \
extracted using GNU-tar on a Linux (Centos 4) box:</span></font><o:p></o:p></p>

<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>The
OP&#8217;s Q:</span></font><o:p></o:p></p>

<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>I can find
a tar readable file header using &quot;tar -tvf /dev/tape1 -b 500&quot; but
unfortunatly the directory appears to be corrupted.<br>
<br>
I am attempting to recover a windows backup onto centos 4.<br>
<br>
I get the following output from tar;<br>
<br>
tar: Record size = 128 blocks<br>
?rwx------ / 80 2007-04-21 01:03:40 \001 unknown file type `E'<br>
?rwx------ root/root 0 2007-04-21 01:03:40 /L/ unknown file type `U'<br>
tar: Skipping to next header<br>
?rwx------ root/root 0 2007-04-21 01:03:40 unknown file type `Q'<br>
?rwx------ / 216 2007-04-21 01:03:40 \001 unknown file type `E'<br>
?rwx------ root/root 0 2007-04-20 23:30:00 /L/Backups Database/ unknown file
type `U'<br>
tar: Skipping to next header<br>
?rwx------ root/root 0 2007-04-20 23:30:00 unknown file type `Q'<br>
?rwx------ root/root 268386 2007-04-20 09:00:00 \001 unknown file type `T'<br>
?rwx------ root/root 0 2007-04-20 09:00:00 unknown file type `Q'<br>
?rwx------ root/root 727 2007-04-17 15:00:03 \001 unknown file type `T'<br>
?rwx------ root/root 0 2007-04-17 15:00:03 unknown file type `Q'<br>
?rwx------ root/root 32563712 2007-04-20 21:18:49 \001 unknown file type `T'<br>
tar: Skipping to next header<br>
tar: Archive contains obsolescent base-64 headers<br>
tar: Error exit delayed from previous errors<o:p></o:p></span></font></p>

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