Missing operating system problem

I recently tried to use bootcamp to install Windows 7 everything went good till I tried to reboot the Mac portion....I was greeted to a black screen that says missing operating system need advise

I have a same issue too, it seems like the entire mac os has been wiped out, cause when I hold down the "Option" key, only Windows showed up I am hopeless now, please help!

Similar Messages

[SOLVED] Mac OS X/Arch dual boot Missing Operating System GRUB problem

I am attempting to dual boot Mac OS X.5 and Arch on my "unibody" macbook pro.
I am getting the "Missing Operating System" error over and over. I have followed the Macbook install guide in the wiki and the Beginners install guide. I've also read all the threads I could find on the subject. The common fix seems to be changing the root path on the grub menu.lst... I've tried that. twice. with no luck.
I have EFI on sda1, Mac OS X on sda2 and Arch root on sda3.
My menu.lst is pretty much standard with
root (hd0,2)
kernel /boot/vmlinuz26 root=/dev/sda3 ro
for both Arch and the Arcch fallback.
I'm not sure what else to try. I can give more information, but I'm not sure what else to give.
Thanks in advance .
Last edited by Weird Fishes (2009-06-14 15:34:31)

I know exactly what the problem is.
If you're using rEFIt, sync your partition tables (should be the menu item called 'Partitioning Tool'). The problem is that GRUB has been installed, but doesn't know where to find the Arch partition.
After syncing, you may find that the boot process hangs at the Linux logo on a gray background. No worries — just reboot and the problem should fix itself.
N.B. You will need to do a partition table sync every time you change your hard drive's layout.

HELP! How can i restore/recover files from Bootcamp with Boot Failure - Missing operating system error?

Hi,
I am having a few problems with bootcamp on my imac. When i tried to move the bootcamp partition on windows 7 into free space, it crashed and turned off. Ever since i have had the error 'Missing operating system' and it fails to boot. I have some very important files on the bootcamp partition. Is it possible to recover these files or even to restore the bootcamp partition to it's original state? I do not have a backup of my bootcamp partition. Another problem i have is that ever since i tried to expand my macintosh HD partition into free space, when i hold alt while booting up (to choose which partition to boot like i normally do), the bootcamp partition has stopped appearing. This means that i cannot even boot the windows 7 bootcamp partition anymore!
So basically here are my 2 questions:
How can i restore/recover files from Bootcamp with Boot Failure - Missing operating system error?
How can i make the Bootcamp partition appear in Startup Disk and when i hold the option key while starting up my computer to allow me to boot windows 7?
Any solutions are very much apreciated!
Thanks!
I know that bootcamp (disk0s4) hasn't been fully deleted since it appears in disk utility (i cant do anything to it though)
And here is the error i see when i try to launch bootcamp (back when i was actually able to boot up bootcamp to the error screen)

WinClone 3 is OS X and saves Windows image it makes for restore - that should work but you will have to try and you would need to make a new image unless it also works with a native Windows system restore image. It is now supported and has come a long way.
http://www.twocanoes.com/
Paragon Clone OS works and does disk-to-disk clone just like CCC you end up with two bootable drives. But does not work with your setup. It would let you clone and move your Windows install to an SSD or another disk drive though and be bootable.
During its clone process it checks for errors which is very helpful and lets you know - something CCC and others should adopt more of.
http://www.paragon-software.com/downloads/demo.html
I wish for our/my sake you had re-read and rewritten the long 'story' and broken it into a brief list of facts we needed.
OS X
Windows
Backup (though external is much safer) and you want bootable OS X clones as well as TimeMachine
https://support.apple.com/kb/HT1427
https://support.apple.com/kb/HT1553
There are a number of things to do like chkdsk and others as well as Windows DVD to do automatic system repairs and find out why.
AppleHFS - the abilty to mount and read HFS volumes can be notorious.
I would rearrange and redo your storage setup and how you use the 4-5 internal hard drive bays.

HT4818 after installing boot camp 4 on mountain lion " Missing operating system"

Hello
I hade a small Windows 7 partition , so after updating to mountain lion , I wanted resize win partition .
I made an image of it , then deleted win partition from utility disk , ( wrong idea )
I didn’t notice that boot camp could erase win partition , anyway I have tried several times , and always after reboot boot camp
I get the same
Missing operating system .
If I boot from dvd install win or if i boot from the boot win partition.
hd and partitions looks OK to utility disk
Any idea to fix the problem ?

I presume that you've followed the instructions for sideloading the iMac Windows drivers into your install via USB stick? (wasn't aware the EFI recognized the SD slot as storage on boot. Now i know)
I always found more success in just slipstreaming the drivers and install.xml file onto a custom Win7 DVD rather than the USB approach when trying with my Late 2009 27" iMac. The Win7 installer needs that enclosed .xml file in the driver package to tell it where to find the drivers so that they be loaded when the Win7 image extracts itself.
If you're using mountain lion, then you should be receiving the proper Win7 driver set. If you wanted to create a custom image, then you can use an ISO file, the driver package and disk utility to make something you can use. Either that or you learn what edits your install.xml file needs to point the installer properly and check it manually.
I don't know what links you have so i'll just include everything:
Installing boot camp on a Late 2009 iMac:
http://support.apple.com/kb/TS3173
Direct link to Late 2009 iMac-specific Windows drivers.
http://support.apple.com/kb/DL995
I'd try a USB stick and the iMac-specific driver set. It should steer your insolent windows installer correctly.
Hope this helps.

Ideacentre operating system problem

hi all, bit of a problem which is annoying as I only got the computer today. It's an ideacentre a720.
Recently I restarted my computer in completely normal fashion, and when it turned on again it said 'missing operating system' and won't get into windows.
I tried putting in the CD i got with the computer when the computer started up, but it didn't do any good.
any ideas? can i just reset the computer to factory settings?
cheers,
rob.

hi zerobmeister,
Welcome to Lenovo Community Forums!
Yes. the system can be Recovered back to factory settings by follow this guide on your system's User Guide
But before proceeding on this,
Power Drain
           Remove the power cord and hold down the power button for at least 15 seconds.
and Reset Your Bios by
Pressing the F1 right after you press the power
     once inside BIOS Press f9 then Enter
             then Press F10 then enter
                      and that should reset your BIOS
Last is to Try resetting your system to a factory state
Spoiler (Highlight to read)
3.1 OneKey Recovery
OneKey Recovery
is an easy-to-use application. You can use it to restore your
computer to the system default or to a previously backed up state.
Detailed Operation Procedure
1. Repeatedly press and release the
F2 key after turning on the computer until the
Lenovo Rescue System
opens, then select OneKey Recovery.
Note:
System Recovery will overwrite all of the data on the C: drive. To
prevent loss of data, be sure to back up relevant data before performing
system recovery.
2. Follow the on-screen instructions to select the backup task you want to restore
from and the disk where you want to install the operating system, then press
Next
to start the restore.
3. Please wait during the process of system recovery. Do not interrupt the
operation during the recovery process.
4. After the system is recovered successfully, the software will prompt you to
restart the computer. Restart the computer and start the operating system.
3.1 OneKey Recovery
OneKey Recovery
is an easy-to-use application. You can use it to restore your
computer to the system default or to a previously backed up state.
Detailed Operation Procedure
1. Repeatedly press and release the
F2 key after turning on the computer until the
Lenovo Rescue System
opens, then select OneKey Recovery.
Note:
System Recovery will overwrite all of the data on the C: drive. To
prevent loss of data, be sure to back up relevant data before performing
system recovery.
2. Follow the on-screen instructions to select the backup task you want to restore
from and the disk where you want to install the operating system, then press
Next
to start the restore.
3. Please wait during the process of system recovery. Do not interrupt the
operation during the recovery process.
4. After the system is recovered successfully, the software will prompt you to
restart the computer. Restart the computer and start the operating system.
Best Regards
Solid Cruver
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"Missing Operating System" when trying to boot from USB

I have a macbook air (3,2), and I'm trying to install Arch onto the partition that currently has Ubuntu. I have tried a few different ways to get the Arch core iso onto the usb key drive, but no matter what I do, I am ending up with the message "Missing Operating System" when I boot into it.
I started out using the instructions from https://wiki.archlinux.org/index.php/US … tion_Media for writing it on OSX, using diskutil unMount, then the dd with bs=8192, and of=/dev/disk2
When that didn't work, I tried booting into my ubuntu install, and used just a plain
sudo dd if=archlinux.iso of=/dev/sdb
Still no luck, so then I went to my old standby of unetbootin, which didn't do any better. I just tried yet again with the dd in ubuntu, and I'm still not having any luck.
Here's some of the relevant info I could find:
$ sudo dd if=Downloads/archlinux-2011.08.19-core-x86_64.iso of=/dev/sdb
772096+0 records in
772096+0 records out
395313152 bytes (395 MB) copied, 1.55667 s, 254 MB/s
$ sudo fdisk -l /dev/sdb
Disk /dev/sdb: 8065 MB, 8065646080 bytes
64 heads, 32 sectors/track, 7691 cylinders, total 15753215 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x3946b2c9
Device Boot Start End Blocks Id System
/dev/sdb1 * 0 772095 386048 17 Hidden HPFS/NTFS
One interesting thing I noticed was that the dd took about 10 minutes in mac osx, and under 2 seconds in linux. That seemed like a pretty big difference between the two systems, but I'm not sure if that's related to the batch size on the write, or to the implementation of dd used in OSX.
Is there something obvious I'm missing? I know the computer is able to boot from this key drive because I was able to boot an Ubuntu livecd from it just a few days ago. Unfortunately, the MBA won't boot from my external cd/dvd drive because it's not the apple brand super-drive, and I don't want to spend the money for a super-drive, so a cd-based install isn't an option.
Really looking forward to playing with Arch, because some of my friends recommended it to me highly. I'm a former gentooer (years ago) who became fed-up with installing *everything* from source. I can't stand ubuntu doing everything for me, and debian always seemed so far behind the curve on everything, so Arch seems like the perfect OS if I can just get into the installer. :)
Thanks so much!
~Maquis

Oh, forgot to mention, I did the dd from ubuntu with both bs=4M and without a bs argument. the version without the bs argument is the one that went really fast.
Neither version would boot, so I don't think that the way I'm writing it is the problem.
I did just notice that if I just do a sudo fdisk -l without specifying the drive, I have 2 entries for my drive:
Disk /dev/sdb: 8065 MB, 8065646080 bytes
64 heads, 32 sectors/track, 7691 cylinders, total 15753215 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x3946b2c9
Device Boot Start End Blocks Id System
/dev/sdb1 * 0 772095 386048 17 Hidden HPFS/NTFS
Disk /dev/sdb1: 395 MB, 395313152 bytes
64 heads, 32 sectors/track, 377 cylinders, total 772096 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x3946b2c9
Device Boot Start End Blocks Id System
/dev/sdb1p1 * 0 772095 386048 17 Hidden HPFS/NTFS

Lion install in BootCamp. Now "Missing Operating System"! Help!

Just installed Lion w BootCamp on a white MB and now when I boot to the Win7 side, I get "Missing Operating System". Any ideas how to fix this?
Thanks in advance.

This is the same problem that I find myself. Help me.
Este es el mismo problema en el que me encuentro.
Re: Lion install in BootCamp. Now "Missing Operating System"! Help!
02-ago-2011 4:49 (in response to William Cochran)
hey can you tell me how to do that?
because when I press the option/alt button on the keyboard, there's just two boot source option , because before upgrade into lion, I have windows 7 too in my mac
There are only two boot option : 1.Macintosh HD , 2.Recovery HD
I just finished downloading the Bootpicker, and got no idea how to use it to change the boot and getting back my windows 7, I have lots of critical data in there

Dm4 missing operating system

I tried to reinstall my pavilion dm4 OS (win 7 home). I backed up personal items and then (1) Restarted and held down the Esc key, (2) chose F11 for System Recovery and then chose to install the minimum system. The process reformatted the drive, which was pretty quick, and then took a long time to install the software. At some point it finally rebooted and then I got a single message at the top left of the screen - "Missing operating system". When I try System recovery again (Restart, Esc, F11) I am met with the same message - missing OS. Any help for this? Thanks!
This question was solved.
View Solution.

The first thing you will need to try is unplugging the sata connector at the hard disk and then plug it back in.
if that does not work, then boot to a Windows 7 install disk (or usb installer) to access the Startup repair option. If the issue is a corrupt BCD file the that should take care of the issue.
If you need to make a Windows 7 usb installer or install disk you can download the ISO image here. Use the Microsoft store's Windows 7 download\USB utility to make the USB installer or DVD install disk.
****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
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Satellite L750/04k missing operating system

Hi, well seems I am having an adventure with the toshiba.
Had to uninstall and reinstall drivers for the touchpad on/off function - display still not working.
TS advised value package needed - spend 2 + hours download 32 bit; when it didn't work another TS let me know as I had a 64 bit system I had to source download and extract that one so 3 plus hours later done this it failed.
Have to restore laptop to factory settings. TS closed; as part of their F Q&A they gave a guide how to 'restore'
-turn off laptop.
-turn on laptop whilst holding the '0' key (next to the 9 key)
- screen on laptop says 'Missing Operating System' top left corner and in bottom left corner 'HDD Recovery***'
No recovery disks were in the box when purchasing this laptop new in June of 2011.
Seems that I have continual issues with the functionality of the key board.
This was the same problem I experienced 2-3 weeks ago and was told it was a virus and had to correct this by clearing the system and reinstalling from backup.
Any tips would be greatly appreciated. ... since it done this I have read the manual, tried to google toshiba support on the iphone no luck and spent the last 3 hours setting up my 'older' laptop to get some internet access going...

Seems you are referring to this thread:
http://forums.computers.toshiba-europe.com/forums/thread.jspa?threadID=64929
> No recovery disks were in the box when purchasing this laptop new in June of 2011.
The recovery CDs were not part of the package because you could create a own Recover disk using the Recover disk Creator.
Here is a FAQ how to run system restore on Toshiba Australian notebooks:
http://www.mytoshiba.com.au/support/items/faq/71
If HDD recover is not possible, then you will need to use a Recover disk.
The missing recover disk could be ordered here.
http://www.mytoshiba.com.au/support/items/faq/69

Missing Operating System

I have a Lenovo T500 Thinkpad. I turned off my laptop and now when I turn on the laptop I receive a message that states "Missing operating system". I do not have any recovery disk or install disk. How do I fix this error? The only thing that I have been able to access is via the blue ThinkVantage key. I receive a screen that has a Startup Interrupt Menu with three options. ESC to resume normal startup, F1 to enter the BIOS Setup Utility or F12 to choose a temporary startup device. I see the messages where the drives are partitioned and I should be able to set back to factory standards somehow, but I sure don't know how to even begin. Can anyone help me, as I am clueless.
Thank you

Hi kew659 and welcome to the forum!
Per support page, your T500 came with Win XP pro. Even if you contact lenovo to buy recovery discs, I think they would only sell you Win XP media.
Try following, it will work if you had a good recovery partition of Vista or XP:- http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS013955
Maliha (I don't work for lenovo)
ThinkPads:- T400[Win 7], T60[Win 7], IBM 240[Win XP]
IdeaPad: U350
Apple:- Macbook Air [Snow Leopard]
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Z77A-GD65, "Missing Operating System" after running Live Update

So here's the brand new computer I assembled:
$309.99 HIS IceQ Boost Clock H795QC3G2M Radeon HD 7950 3GB 384-bit GDDR5 PCI Express 3.0 x16
$219.99 Intel Core i5-3570K Ivy Bridge 3.4GHz (3.8GHz Turbo) LGA 1155 77W Quad-Core Processor Intel HD Graphics 4000
$199.99 Acer G276HLDbd Black 27" 6ms (GTG) Widescreen LED Monitor
$179.99 Western Digital WD Black WD2002FAEX 2TB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive
$159.99 AZZA Hurricane 2000 CSAZ-2000 Black SECC Japanese Steel ATX Full Tower Case
$154.99 Intel 335 Series 2.5" 240GB SATA III MLC Internal Solid State Drive (SSD)
$154.99 Intel 335 Series 2.5" 240GB SATA III MLC Internal Solid State Drive (SSD)
$144.99 MSI Z77A-GD65 LGA 1155 Intel Z77 Motherboard with UEFI BIOS
$119.99 OCZ ZT Series 750W Fully-Modular 80PLUS Bronze Power Supply
$99.99 Kingston HyperX Beast 16GB (4 x 4GB) 240-Pin DDR3 2400 (PC3 19200) RAM
$99.99 Logitech G930 USB Connector Circumaural Wireless Gaming Headset
$99.99 Microsoft Windows 7 Home Premium SP1 64-bit - OEM
$74.99 ASUS Black Blu-ray Burner SATA BW-12B1ST/BLK/G/AS
$59.40 CNPS9900MAXR Red CPU Cooler
$49.95 3YR DATA RECOVERY SERVICE I INT. HD For (WD Black 2TB)
$34.99 2 yr Replacement W/ ADH plan For (Acer 27" LCD)
$10.99 LITE-ON SK-2030/B Black PS/2 Wired Slim Keyboard
$9.99 LITE-ON SK-2035/B Black USB Wired Slim Keyboard
I wanted to have the SSDs in RAID0 with Win7 and the games on it, then a volume on the 2TB that the RAID backs up to, with the remaining 1.5TB just free storage space in another volume. I couldn't get raid past Win7's Where Do You Want To Install screen during installation, so I ended up installing the OS on just one SSD. I figured I'd backup the functioning OS to the 2TB then rebuild the RAID array and copy the OS back onto it.
The system had been up an running for a full day, being updated left and right nonstop, several big games put in, etc etc, everything was running fine until I decided to run MSI Live Update and started pumping in updates. Constant errors as I went along, but generally it'd just skip to the next installation attempt. When it got down to updating the BIOS and did it's DOS injection thing, it for forcefully shut down the PC, restarted, did Post, flashed the BIOS wallpaper, restarted again, Posted, no BIOS wallpaper, just endless "Missing Operating System". Walked away, went to bed, back up and at it for a few minutes (Will be back tonight for however long it takes to get it fixed). I switched the BIOS switch over, no dice. Feels like it's a BIOS "OS" that's gone, and that a BIOS reset/flash is in order or something, but I've never done these things.
Thanks in advance for any rendered assistance that leads to resolution.

The SSDs are definitely hooked up where they're supposed to go; the motherboard had a little sticker n' everything for where the two SSD dedicated SATA 6.0gbps ports were :P AND my case has 2 specific slots for SSDs which don't use the hotswap electronics PCB passthrough like the other 4 bays, which is where the 2T is installed. I was going to take the 2TB out and hook it up normally and see if that changed the speeds, but I'm leaning towards wishful thinking. Did I mention I went and made several volumes with different file cluster sizes to test and see if that was the issue? Alas, all were borked. It still confuses me though because every once n' awhile it'd do massive burst speeds the way it's supposed to.
As far as I can recall I'm using up to date BIOS, the last one or two. One BIOS switch is set for the last BIOS, the other switch is a step back devoid of the Windows 8 stuff. I believe I have all the drivers up to date as well. Intel 335's are literally brand new, mine hadn't been more than 3 weeks old off the production line when I received them; IE, they should pretty much have the latest firmware on them which spares me the risk of destroying something precious
I MIGHT have a SATA external enclosure around here somewhere, if so, the 2TB could go in that for additional testing until I figure out where it's sustaining speeds of 2-10MB vs 100-150MB/second.
Meanwhile, the good news is that the system has been fully operational and hella stable. I hadn't slept in almost 3 days, playing and installing stuff nonstop. The system continues to run cooler (32c@stock CPU speed) as the thermal paste sets in, the knocking sound of the fan in the PSU has gone away upon me reawakening a bit ago, and amazingly, this massive system (with EIGHT fans) draws only 60-65 watts while desktopping. That's just astounding

Missing Operating System Error

Hello, my aunt asked me to fix her computer but I fix game systems. She had it for a few years, Toshiba Satellite L305D-S5892(model # PSLC0U-02501F).When I turned it on, it said press F2 for Setup Utility and F12 for Boot Manager.After everything, it says " Missing Operating System".I tried everything on setup and boot manager, took hard drive out and put back in, took memory put and put back in , took big battery and put it back.Please Help!!!!!!!

Can you get it into the bios setup screen. If so is the hard drive listed. It sounds to me like a hard drive failure. If you replace the hard drive you will also probably have to buy a set of recovery disks unless your aunt made a set.
L875D-S7232 (Win 8.1)

"Missing operating system" help!

Hey all,
My Mini's hard drive died the other day, so I installed a new one. I have the OSX dvd in my drive, and when I go to boot up, I get an error message "Missing operating system."
If I try to boot from CD by holding down the C button on my keyboard, nothing happens -- same error message. It appears my USB keyboard isn't powered.
Any ideas?

The Apple Aluminum keyboard doesn't work with the startup keys on the mini.
You can use your Apple remote instead: as soon as you hear the startup chime or beep, hold down the menu button on the remote. It will put disc icon up on the screen that you can select with your mouse.
Keep in mind that you need to use the install disc that shipped with your model of Mini -- or else a full retail version.

[solved: PEBKAC] syslinux woes: "Missing operating system"

In light of http://mailman.archlinux.org/pipermail/ … 23211.html I decided to try syslinux, but couldn't get it to work. I think I followed the wiki (i.e. the /boot partition is marked active etc.) but still got "Missing operating system" error and had to use a liveCD.
If anyone is using syslinux for their bootloader, can you pleas post the configs or give me a hint what could have gone wrong?
Last edited by karol (2012-07-13 22:25:03)

I use syslinux (or more precisely the extlinux that boot from an ext{2,3,4} partition) successfully. Hereafter I briefly post what have to be done. If it still does not work. Repost posting exactly what you have tried.
1) create a directoty /boot/syslinux, containing syslinux.cfg and possibly modules that you will refer in this file (notably menu.c32 and chain.c32). You can put symlinks on the condition that the symlinks point to file in the same partition.
small edit: pay attention of 2) if you use symlinks. the / of the pointed file is the root of the partition where syslinux it. It does not correspond to the way you see it in the system if this partition is not mounted in /. See 2).
2) Place syslinux.cfg in this directoty. The root of the file mentionned are relative to the root of the partition containing the /boot/syslinux directory. You can also use relative paths that are relative to the directory /boot/syslinux (so if you have a /boot partition, the linux kernel will be referenced as /vmlinuz-linux, if /boot is on the same partition as / then /boot/vmlinuz-linux). I put here my config as an example: http://pastebin.com/zNunwupx
3) Make the partition containing /boot/syslinux bootable.
4) Put an mbr on the hard disk to be booted:
dd if=/usr/lib/syslinux/mbr.bin of=/dev/sda bs=440 count=1
Replace /dev/sda by your hard disk. If you use gpt partition, you may have to use /usr/lib/syslinux/gptmbr.bin
5) run
extlinux /boot/syslinux
Last edited by olive (2012-07-11 19:18:42)

"Missing Operating System" on boot?

My Windows side was working perfectly until very recently, where it now displays a "Missing Operating System" error in the BIOS when I start it up.
I have tried to use EASEUS File Recovery to no avail and it detects the wrong files; OS X also displays the wrong files in my Windows Drive (it appears as if it was a fresh install of Windows). The Windows 7 install DVD does not recognize my OS as being there and I have no idea what to do.
Any help or suggestions? Or do I need to format my drive and lose all my years school work? (I didn't backup Windows only OS X with Time Machine)
Thanks

In fact I've already tried with Ext3 and exFAT, but it didn't work. Even only erasing without creating a new partition doesn't work.
I already have the driver for read/write on NTFS
The hatter wrote:
You moved Windows to higher number.
Okay , but I just want to remove the partition to a lower one, so He can see the OS, without having to reinstall the whole thing, is it possible ?

Missing operating system problem

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