Re: [Freedos-user] dos backups in the 21st century?

2011-09-01 Thread escape


On 30.08.11 16:16, Michael B. Brutman wrote:
 On a slightly related topic, I've been thinking about what to do on the 
 smaller machines to increase the amount of working storage.  With a 
 strict programming API I can use temp files as backing storage, kind of 
 like implementing bank switched memory but backed by hard disk storage 
 instead.  Pretty slow, but better than not having any extra memory 
 storage.  One thing that frustrates me is that there is no way to make a 
 'bad' pointer on an 8088.  Sure, the pointer can point to garbage, but 
 there is no way to create a pointer that forces an interrupt.  That 
 would help things tremendously, especially when it comes to the part 
 about testing and making the code robust.  (It can be done with some 
 extra hardware, but I don't think I'm that crazy yet.)  Why the 
 interested in memory allocation?  I suspect that things like rsync are 
 going to be limited by memory ...

There is related article on using virtual memory For 640K DOS
programming on Digital Mars site:
http://www.digitalmars.com/ctg/vcm.html Hope it could find some
interesting points there.

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Re: [Freedos-user] dos backups in the 21st century?

2011-08-30 Thread escape

On 29.08.11 01:03, Michael B. Brutman wrote:
 On 8/25/2011 6:20 PM, Rugxulo wrote:
 Hi,

 On Wed, Aug 17, 2011 at 1:48 PM, escapeesc...@front.ru  wrote:
 If you use dos  alone and purely on your machine, but nevertheless have
 some *nix server access you can use rsync client for dos:
 http://www.2net.co.uk/rsync.html
 Good, GPL. Interesting, works on 8086 (Borland C 3.1) w/ only 640 kb RAM.   
 ;-)

 
 Rsync!  Neat ...
 
 And probably easily ported to use mTCP instead, probably with a 
 performance improvement ..

Great to hear, as mTCP becoming all-you-need-for-dos-networking solution.
BTW what do you think about how hard it wiil be to implement DOS-based
rsync server, even if feature-limited?


 
 
 
 Mike
 
 
 
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Re: [Freedos-user] dos backups in the 21st century?

2011-08-30 Thread Michael B. Brutman
On 8/30/2011 1:46 AM, escape wrote:
 Great to hear, as mTCP becoming all-you-need-for-dos-networking 
 solution. BTW what do you think about how hard it wiil be to implement 
 DOS-based rsync server, even if feature-limited?

I started looking at the rsync client - getting past the compiler and 
build system dependencies is a major chore.  There are funny things like 
typedef int int in there that Watcom doesn't like; unraveling the 
macro pre-processor expansions to find the culprits takes time.  I 
suspect that the change to use mTCP instead of Watcom will be far 
easier, but it takes a while to get to that point.  Depending on the 
rest of the client, the speed difference may not be that great - that 
remains to be seen.  (If it is mostly tied up in disk I/O or something 
cpu intensive then the TCP part might not make that much of a difference.)

An rsync server?  I need help ...  there is not enough time in the 
world.  (To that end I've been updating the Wiki documentation at the 
Google project hosting site - I've added a lot of design documentation 
lately.)

On a slightly related topic, I've been thinking about what to do on the 
smaller machines to increase the amount of working storage.  With a 
strict programming API I can use temp files as backing storage, kind of 
like implementing bank switched memory but backed by hard disk storage 
instead.  Pretty slow, but better than not having any extra memory 
storage.  One thing that frustrates me is that there is no way to make a 
'bad' pointer on an 8088.  Sure, the pointer can point to garbage, but 
there is no way to create a pointer that forces an interrupt.  That 
would help things tremendously, especially when it comes to the part 
about testing and making the code robust.  (It can be done with some 
extra hardware, but I don't think I'm that crazy yet.)  Why the 
interested in memory allocation?  I suspect that things like rsync are 
going to be limited by memory ...

Also slightly related - Pasquale Villani.  I am late to FreeDOS and 
reading the news of his passing reminds me of how much I owe to others 
in general ...


-Mike



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Re: [Freedos-user] dos backups in the 21st century?

2011-08-30 Thread Eric Auer

Hi Michael,

 An rsync server?  I need help ...  there is not enough time

If you ask me, rsync works well and is safer when you can do
it over ssh, but that sort of leads to the question whether
you have a SSH server for DOS. Nice clients include ssh2dos.

 strict programming API I can use temp files as backing storage

Note that DOS is not multi-tasked so that will also have some
issues. A nice alternative could be XMS, of course :-)

 One thing that frustrates me is that there is no way to make a 
 'bad' pointer on an 8088.  Sure, the pointer can point to garbage
 but there is no way to create a pointer that forces an interrupt.

I guess some compilers or macros could add null pointer checks
for you or could even check at compile time whether there is
a risk to use un-set pointers at all. And of course you can do
things yourself - beautiful code with checks and logging etc.

 Also slightly related - Pasquale Villani.  I am late to FreeDOS and 
 reading the news of his passing reminds me of how much I owe to others 
 in general ...

Yes... Sad news that he had to pass away that early :-(
A loss for his friends and for the FreeDOS community...

Eric


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Re: [Freedos-user] dos backups in the 21st century?

2011-08-28 Thread Michael B. Brutman
On 8/25/2011 6:20 PM, Rugxulo wrote:
 Hi,

 On Wed, Aug 17, 2011 at 1:48 PM, escapeesc...@front.ru  wrote:
 If you use dos  alone and purely on your machine, but nevertheless have
 some *nix server access you can use rsync client for dos:
 http://www.2net.co.uk/rsync.html
 Good, GPL. Interesting, works on 8086 (Borland C 3.1) w/ only 640 kb RAM.   
 ;-)


Rsync!  Neat ...

And probably easily ported to use mTCP instead, probably with a 
performance improvement ..



Mike



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Re: [Freedos-user] dos backups in the 21st century?

2011-08-25 Thread Rugxulo
Hi,

On Wed, Aug 17, 2011 at 1:48 PM, escape esc...@front.ru wrote:

 If you use dos  alone and purely on your machine, but nevertheless have
 some *nix server access you can use rsync client for dos:
 http://www.2net.co.uk/rsync.html

Good, GPL. Interesting, works on 8086 (Borland C 3.1) w/ only 640 kb RAM.   ;-)

 If it is the case, than probably this will be the best solution, as
 rsync is one of the most widely used tools for backups.

Yes, popular, though I admit to never having tried it (yet??).

 BTW this rsync client is distributed under GPL, so why it's still not in
 FreeDOS distribution, or I'm missing something?

It's indeed dated from 2003, though, so I guess it could've been in FD
1.0 (2006. But since nothing has come out since FD 1.0 (2006), what'd
you expect?  :-P  Everybody's too busy. Also most people probably
don't need it (or need full rsync, maybe, dunno). But anyways, I've
mirrored it to iBiblio for you (us?) here:

http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/net/rsync/

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Re: [Freedos-user] dos backups in the 21st century?

2011-08-25 Thread Ray Davison
James Hahn wrote:
 Hello Ray,

 Thanks for sharing pictures of your setup.  It's a real fascinating
 setup.  Other than a duplicating machine, what function does it serve
 while connected to your network?

It is primarily a storage box.  In it's normal mode it has one boot/app 
drive, three storage drives, DVD, ZIP and two floppies one of which is 
also a memory card R/W.  It is the primary repository of backup files 
and of still and video files which would clutter a work machine.  The 
stacks of drives are other storage, backups of the primary storage 
drives, trial OS installations.

Ray


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Re: [Freedos-user] dos backups in the 21st century?

2011-08-24 Thread James Hahn
Hello Ray,

Thanks for sharing pictures of your setup.  It's a real fascinating setup.
Other than a duplicating machine, what function does it serve while
connected to your network?

Thanks,

Jim

On Fri, Aug 19, 2011 at 7:38 PM, Ray Davison ray...@charter.net wrote:

 Karen Lewellen wrote:
  A question mainly for those who use dos  alone and purely on your
  machines. I am asking how you do large backup work yourself now? say
  3 gig or so?

 I have a couple suggestions for your consideration.

 First, anyone who is doing anything serious with a PC needs this:
 http://www.dfsee.com/
 It works on DOS, OS/2, Win and Linux, and the CD boots FreeDOS.

 The most powerful thing it does is fix confused HDDs; like lost
 partition tables.  And the author will help.

 It also does a bit-for-bit, drive-to-drive copy.  This is a pic of my
 backup and storage box.

 https://picasaweb.google.com/110720715566253280768/ScreenShots#5620366853489847778

 It is connected to a LAN, but it is also the ultimate sneaker net.  All
 my HDDs, on every machine, are front panel plugin.  Backup consists of;
 plug in the HDD you want to copy, plug in a blank HDD at least as large
 as what you want to copy, boot - the racks are hot swappable, the OSs
 are not - , run DFSee, select the partition(s) or drive to be copied,
 and go to lunch.

 Restore just reverses the process.

 Ray


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Re: [Freedos-user] dos backups in the 21st century?

2011-08-19 Thread Dyster Robert (SANDWELL AND WEST BIRMINGHAM HOSPITALS NHS TRUST)

Hi Karen,

Try to find a copy of Powerquest Drive Image or Powerquest Partition Magic 
(which also has the function to backup drives). I have used Powerquest Drive 
Image for years.

Paragon Software have DOS versions of their software: Hard Disk Manager, 
Partition Manager, Disk Backup - all have the ability to clone drives or backup 
a whole drive to a backup file that you can use to restore the drive.

Media Tools Unlimited is also a DOS tool with the option to clone failing 
drives.
http://www.atl-datarecovery.com/data-recovery-products/media-tools-professional/




cheers

Bob Dyster

-Original Message-
From: Karen Lewellen [mailto:klewel...@shellworld.net]
Sent: 17 August 2011 14:13
To: freedos-user@lists.sourceforge.net
Subject: Re: [Freedos-user] dos backups in the 21st century?

Hi,
its okay. let me be more clear.
I *only* use dos, it is the *only* os to which I have access for this purpose.
  because I do a great deal of work from this machine, years worth of data, 
audio  production projects and the like I desire a method to back up both of my 
dos drives safely that preserves the data.  not just files, entire drives.  In 
this case, although they are not full this means two 20 gig drives.  Yes I 
realize 3 gig is not large any more, but I am not sure the largest drive 
capacitor for ms dos 7.1 which I run.  I am guessing indeed getting a very 
large external drive and creating partitions to represent my backup drive 
storage space.

I will hunt for Norton ghost, I have a copy of the last dos that I knew
of edition of norton utilities, and disk doctor is sensational.
booting another os would not give me a place to put the files, nor a regular 
way to upgrade the backup I create.
You were helpful, you told me of program that may do the trick, and in Norton  
which I really like in general.
Thanks for answering my question, its the first reply I have gotten.
Karen

On Tue, 16 Aug 2011, Rugxulo wrote:

 Hi,

 On Mon, Aug 15, 2011 at 5:12 PM, Karen Lewellen
 klewel...@shellworld.net wrote:

 A question mainly for those who use dos  alone and purely on your
 machines. Given the size of hard rives, using trusty pkzip to create
 a set of backup discs  is well not possible.

 I forget, what are the limits for the .ZIP format, 65000 files? You
 could just use multiple archives (or a different format). But yeah,
 .ZIP isn't really meant for backups (is it???).

 The nice thing about functional usb drivers is of course that one can
 attach an external drive for this, and I guess? still use pkzip for the 
 purpose?

 Presumably some (most?) BIOSes will emulate a USB hard drive for you
 anyways, if you plug it in before bootup.

 I understand one can make an image too in dos.

 Probably, yes, though I've never personally tried.

 After having a major hard drive scare today though, and with my use
 of a dsl modem to a network having a a touch worried about security
 too, I am asking how you do large backup work yourself now? say 3 gig or so?

 3 GB isn't exactly large anymore. They (e.g. Dell) already advertize
 3 TB disks for like $119US or whatever. 3 GB should be easy (in
 theory).

 I don't really understand the question (and of course am the worst
 person to ask). Are you trying to backup the entire DOS partition (3
 GB) to network or just to external drive or all of the above or ... ?

 Symantec (Norton) Ghost allegedly used to have a DOS version. Not sure
 if the latest still has it, even in an /old/ subdir. That always
 sounded like the best way to do it, and CWS always seems to swear by
 it.

 Otherwise you're probably going to be told, Boot a Linux live CD, use
 their tools. Even dd could probably be used, but I wouldn't recommend
 that except in a pinch.

 Personally, I'd probably just burn the files to DVD-RW from within a
 modern OS, esp. if you only need to backup 3 GB.

 (Sorry if this isn't as helpful as I'd like.)

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Re: [Freedos-user] dos backups in the 21st century?

2011-08-19 Thread Ray Davison
Karen Lewellen wrote:
 A question mainly for those who use dos  alone and purely on your
 machines. I am asking how you do large backup work yourself now? say
 3 gig or so?

I have a couple suggestions for your consideration.

First, anyone who is doing anything serious with a PC needs this:
http://www.dfsee.com/
It works on DOS, OS/2, Win and Linux, and the CD boots FreeDOS.

The most powerful thing it does is fix confused HDDs; like lost 
partition tables.  And the author will help.

It also does a bit-for-bit, drive-to-drive copy.  This is a pic of my 
backup and storage box.
https://picasaweb.google.com/110720715566253280768/ScreenShots#5620366853489847778

It is connected to a LAN, but it is also the ultimate sneaker net.  All 
my HDDs, on every machine, are front panel plugin.  Backup consists of; 
plug in the HDD you want to copy, plug in a blank HDD at least as large 
as what you want to copy, boot - the racks are hot swappable, the OSs 
are not - , run DFSee, select the partition(s) or drive to be copied, 
and go to lunch.

Restore just reverses the process.

Ray

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Re: [Freedos-user] dos backups in the 21st century?

2011-08-17 Thread dos386
 Given the size of hard rives, using trusty pkip to create a set of
 backup discs  is well not possible.

No need to backup disk image ;-)

 how you do large backup work yourself now? say 3 gig or so?

Copy gig files or archive and compress then.

 Personally, I'd probably just burn the files to DVD-RW from within a
 modern OS, esp. if you only need to backup 3 GB.

FYI, there are adapters to make an internal IDE
HD somewhat exchangable. So, add the backup HD,
copy bloat, remove the backup HD.

 I forget, what are the limits for the .ZIP format, 65000 files?

And 4 GiB for any size.

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Re: [Freedos-user] dos backups in the 21st century?

2011-08-17 Thread Karen Lewellen

Hi,
its okay. let me be more clear.
I *only* use dos, it is the *only* os to which I have access for 
this purpose.
 because I do a great deal of work from this machine, years worth of data, 
audio  production projects and the like I desire a method to back up both of 
my dos drives safely that preserves the data.  not just files, entire 
drives.  In this case, although they are not full this means two 20 gig 
drives.  Yes I realize 3 gig is not large any more, but I am not sure the 
largest drive capacitor for ms dos 7.1 which I run.  I am guessing indeed 
getting a very large external drive and creating partitions to represent 
my backup drive storage space.


I will hunt for Norton ghost, I have a copy of the last dos that I knew 
of edition of norton utilities, and disk doctor is sensational.
booting another os would not give me a place to put the files, nor a 
regular way to upgrade the backup I create.
You were helpful, you told me of program that may do the trick, and in 
Norton  which I really like in general.

Thanks for answering my question, its the first reply I have gotten.
Karen

On Tue, 16 Aug 2011, Rugxulo wrote:


Hi,

On Mon, Aug 15, 2011 at 5:12 PM, Karen Lewellen
klewel...@shellworld.net wrote:


A question mainly for those who use dos  alone and purely on your
machines. Given the size of hard rives, using trusty pkzip to create
a set of backup discs  is well not possible.


I forget, what are the limits for the .ZIP format, 65000 files? You
could just use multiple archives (or a different format). But yeah,
.ZIP isn't really meant for backups (is it???).


The nice thing about functional usb drivers is of course that one can attach
an external drive for this, and I guess? still use pkzip for the purpose?


Presumably some (most?) BIOSes will emulate a USB hard drive for you
anyways, if you plug it in before bootup.


I understand one can make an image too in dos.


Probably, yes, though I've never personally tried.


After having a major hard drive scare today though, and with my use of a
dsl modem to a network having a a touch worried about security too, I am
asking how you do large backup work yourself now? say 3 gig or so?


3 GB isn't exactly large anymore. They (e.g. Dell) already advertize
3 TB disks for like $119US or whatever. 3 GB should be easy (in
theory).

I don't really understand the question (and of course am the worst
person to ask). Are you trying to backup the entire DOS partition (3
GB) to network or just to external drive or all of the above or ... ?

Symantec (Norton) Ghost allegedly used to have a DOS version. Not sure
if the latest still has it, even in an /old/ subdir. That always
sounded like the best way to do it, and CWS always seems to swear by
it.

Otherwise you're probably going to be told, Boot a Linux live CD, use
their tools. Even dd could probably be used, but I wouldn't recommend
that except in a pinch.

Personally, I'd probably just burn the files to DVD-RW from within a
modern OS, esp. if you only need to backup 3 GB.

(Sorry if this isn't as helpful as I'd like.)

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Re: [Freedos-user] dos backups in the 21st century?

2011-08-17 Thread Bernd Blaauw
Op 17-8-2011 15:12, Karen Lewellen schreef:
 I will hunt for Norton ghost, I have a copy of the last dos that I knew
 of edition of norton utilities, and disk doctor is sensational.
 booting another os would not give me a place to put the files, nor a
 regular way to upgrade the backup I create.
 You were helpful, you told me of program that may do the trick, and in
 Norton which I really like in general.
 Thanks for answering my question, its the first reply I have gotten.

I'm not sure how recent the DOS utilities of Norton are. If they're 
quite old, FAT32 support might already be doubtful, and same for modern 
interfaces and harddisk capacities.

You could try SAVEPART, or indeed Norton.

Goodluck :)

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Re: [Freedos-user] dos backups in the 21st century?

2011-08-17 Thread Eric Auer

Hi Karen,

  because I do a great deal of work from this machine, years worth of
 data, audio  production projects and the like I desire a method to back
 up both of my dos drives safely that preserves the data.  not just
 files, entire drives.  In this case, although they are not full this

What would be wrong with XCOPY-ing the files, of course
preserving the timestamps?

 means two 20 gig drives.  Yes I realize 3 gig is not large any more, but
 I am not sure the largest drive capacitor for ms dos 7.1 which I run.  I
 am guessing indeed getting a very large external drive and creating
 partitions to represent my backup drive storage space.

Disk images are just that - you would have to restore
them 1:1 to a partition or in the worst case disk of
the same size, leaving the rest unused and not having
easy access to the files inside the image. Also, the
images tend to be larger than 2 or 4 gb, which limits
the possibilities for storing them on old filesystems
such as pre-NTFS USB sticks and so on. While 3 GB are
not much data, 20 GB already are annoying for USB 2.0

Also, restoring disk or partition images in a way that
they still boot might also take extra work, see above.

Regards, Eric


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Re: [Freedos-user] dos backups in the 21st century?

2011-08-16 Thread Rugxulo
Hi,

On Mon, Aug 15, 2011 at 5:12 PM, Karen Lewellen
klewel...@shellworld.net wrote:

 A question mainly for those who use dos  alone and purely on your
 machines. Given the size of hard rives, using trusty pkzip to create
 a set of backup discs  is well not possible.

I forget, what are the limits for the .ZIP format, 65000 files? You
could just use multiple archives (or a different format). But yeah,
.ZIP isn't really meant for backups (is it???).

 The nice thing about functional usb drivers is of course that one can attach
 an external drive for this, and I guess? still use pkzip for the purpose?

Presumably some (most?) BIOSes will emulate a USB hard drive for you
anyways, if you plug it in before bootup.

 I understand one can make an image too in dos.

Probably, yes, though I've never personally tried.

 After having a major hard drive scare today though, and with my use of a
 dsl modem to a network having a a touch worried about security too, I am
 asking how you do large backup work yourself now? say 3 gig or so?

3 GB isn't exactly large anymore. They (e.g. Dell) already advertize
3 TB disks for like $119US or whatever. 3 GB should be easy (in
theory).

I don't really understand the question (and of course am the worst
person to ask). Are you trying to backup the entire DOS partition (3
GB) to network or just to external drive or all of the above or ... ?

Symantec (Norton) Ghost allegedly used to have a DOS version. Not sure
if the latest still has it, even in an /old/ subdir. That always
sounded like the best way to do it, and CWS always seems to swear by
it.

Otherwise you're probably going to be told, Boot a Linux live CD, use
their tools. Even dd could probably be used, but I wouldn't recommend
that except in a pinch.

Personally, I'd probably just burn the files to DVD-RW from within a
modern OS, esp. if you only need to backup 3 GB.

(Sorry if this isn't as helpful as I'd like.)

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Re: [Freedos-user] dos backups in the 21st century?

2011-08-16 Thread escape
If you use dos  alone and purely on your machine, but nevertheless have
some *nix server access you can use rsync client for dos:
http://www.2net.co.uk/rsync.html
If it is the case, than probably this will be the best solution, as
rsync is one of the most widely used tools for backups.

BTW this rsync client is distributed under GPL, so why it's still not in
FreeDOS distribution, or I'm missing something?


On 16.08.11 01:12, Karen Lewellen wrote:
 A question mainly for those who use dos  alone and purely on your 
 machines.
 Given the size of hard rives, using trusty pkip to create a set of backup 
 discs  is well not possible.
 The nice thing about functional usb drivers is of course that one can attach 
 an external drive for this, and I guess? still use pkzip for the purpose?
 I understand one can make an image too in dos.
 After having a major hard drive scare today though, and with my use of a 
 dsl modem to a network having a a touch worried about security too, I am 
 asking how you do large backup work yourself now? say 3 gig or so?
 Thanks,
 Karen
 
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[Freedos-user] dos backups in the 21st century?

2011-08-15 Thread Karen Lewellen
A question mainly for those who use dos  alone and purely on your 
machines.
Given the size of hard rives, using trusty pkip to create a set of backup 
discs  is well not possible.
The nice thing about functional usb drivers is of course that one can attach 
an external drive for this, and I guess? still use pkzip for the purpose?
I understand one can make an image too in dos.
After having a major hard drive scare today though, and with my use of a 
dsl modem to a network having a a touch worried about security too, I am 
asking how you do large backup work yourself now? say 3 gig or so?
Thanks,
Karen

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Re: [Freedos-user] dos backups in the 21st century?

2011-08-15 Thread Bernd Blaauw
Op 16-8-2011 0:12, Karen Lewellen schreef:
 Given the size of hard rives, using trusty pkip to create a set of backup
 discs  is well not possible.
 The nice thing about functional usb drivers is of course that one can attach
 an external drive for this, and I guess? still use pkzip for the purpose?
 I understand one can make an image too in dos.
 After having a major hard drive scare today though, and with my use of a
 dsl modem to a network having a a touch worried about security too, I am
 asking how you do large backup work yourself now? say 3 gig or so?

Data:
* 7zip (if it allows backup output to consist of split files)
* MKISOFS (store data as ISO in split files)
* XCOPY /S

Partition/Harddisk:
* some complete partitioning program, SAVEPART I guess?

I hope you've got some highspeed USB drive((r)s).

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