|
Re: [BackupPC-users] NTFS symbolic links [Solved]
2011-01-13 12:18:06
Just reporting back my solution for reference.
Denis Jedig skrev 2011-01-02 00:32:
Unfortunately, saving NTFS metadata with rsync has always been a
pain in the ass, as the protocol simply was not designed for most
of it. While symbolic links and junctions would fit in rather
easily, to my best knowledge they are not implemented.
You could build some cludge using dir /S /AL (which will give you
symbolic links as well as junctions in the output, but
unfortunately it will come in a way which is poorly suitable for
scripting it back into shape. Alternatively, you could write some
powershell lines using Get-ChildItem, checking for the
ReparsePoint attribute and using Get-ReparsePoint for retrieving
the destination. The people from the Windows PowerShell
newsgroups/lists should be able to help you here.
Thanks Denis for your input!
I ended up writing two small powershell scripts, getLinkInfo.ps1 and
restoreLinks.ps1 (sources below)
getLinkInfo.ps1 actually calls "dir /al /s" and therefore the script
is dependent of languge (in this case swedish) in the output from
"dir". The script takes a directory path as argument and creates two
text files, dirs.txt and links.txt. They contain the directory
structure, including all subdirectories, and all the links. I let
BackupPC backup these files.
I didn't use powershell to get the directory and link info as I
reached the end of my knowhow. I bet some one else could this
properly.
restoreLinks.ps1 reads these two text files and recreates the
directory structure and all the links. It needs admin privileges.
I guess one could run the getLinkInfo.ps1 from BackupPC using
DumpPreUserCmd or similar. I haven't tried it though.
It's cludgy as h*ll, but it works. There is no error handling so use
this at your own risk. :)
Kind regards
/Erik
----- getLinkInfo.ps1 -----
clear-host
$list = cmd /c dir $args[0] /al /s
$newlinklist = ""
$newdirlist = ""
for ($row = 3; $row -le ($list.length-5); $row++) {
if ($list[$row].split( " ")[1] -like "Inneh*ll") {
$curdir = $list[$row].substring(22)
$newdirlist = $newdirlist + $curdir + "`r`n"
$curdir
}
if ($list[$row].split(" ")[6] -like "<symlink>") {
$curfile = $list[$row].substring(36,
$list[$row].indexof("[")-36)
$curtarget = $list[$row].substring($list[$row].indexof("[")+1,
$list[$row].length-$list[$row].indexof("[")-2)
$newlinklist = $newlinklist + $curdir + "\" + $curfile + "%" +
$curtarget + "`r`n"
}
}
$result = new-item links.txt -type file -force -value $newlinklist
$result = new-item dirs.txt -type file -force -value $newdirlist
-----
----- restoreLinks.ps1 -----
$linklist = get-content links.txt -encoding UTF8
$dirlist = get-content dirs.txt -encoding UTF8
for ($row = 0; $row -le ($dirlist.length-1); $row++) {
md $dirlist[$row].split("%")[0]
}
for ($row = 0; $row -le ($linklist.length-1); $row++) {
cmd /c mklink $linklist[$row].split("%")[0]
$linklist[$row].split("%")[1]
}
-----
|
------------------------------------------------------------------------------
Protect Your Site and Customers from Malware Attacks
Learn about various malware tactics and how to avoid them. Understand
malware threats, the impact they can have on your business, and how you
can protect your company and customers by using code signing.
http://p.sf.net/sfu/oracle-sfdevnl _______________________________________________
BackupPC-users mailing list
BackupPC-users AT lists.sourceforge DOT net
List: https://lists.sourceforge.net/lists/listinfo/backuppc-users
Wiki: http://backuppc.wiki.sourceforge.net
Project: http://backuppc.sourceforge.net/
|
|
|
