I was running out of disk space on my bootcamp Win 7 partition, so I switched to OS X and resized the OS X partition from 400GB to 300GB. I hoped that I could add those 100GB free space to the Win 7/Bootcamp partition.
Well, it didn't work as planned. Now my Mac Mini won't start up anymore, I receive the error:
'No bootable device - insert boot disk and press any key'
I did try to press Alt on startup (on a Windows-Keyboard) but nothing happens, I still end up receiving the above message.
Best regards,Milan
Addition:
I tried a couple of things:
1) after turning on the Mac pressing x-button which should force booting into the OS X partition
Result: 'No bootable device - insert boot disk and press any key'
2) after turning on the Mac pressing ALT-button (which should be equivalent to the Option-button on my Windows-Keyboard, right?)
Result: 'No bootable device - insert boot disk and press any key'
3) I tried to boot Knoppix from a USB-Stick. It doesn't boot..
Carminat tomtom maps free download europe. Result: 'No bootable device - insert boot disk and press any key'
user838531
user838531user838531
1 Answer
Chances are one of two things has happened:
My suspicion is that you're just looking at a damaged hybrid MBR, but I can't be positive of that. Try reading the page to which I linked and examining your disk layout to figure out what's going on.
Rod SmithRod Smith
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I installed Windows 7 on my 2011 MacBook Pro (MacOS High Sierra) successfully. It was recognized at boot time by the computer and had no problems.
Then I used Disk Utility to create some free space on the hard drive shared by MacOS and Windows. Now I get this message on boot to windows: no bootable device – insert boot disk and press any key
Using Finder, I can see that my Windows 7 files are all intact, but I cannot boot from Bootcamp!
Below is the output from the command
diskutil list .
Below is the output from
fdisk /dev/disk0 in MacOS Recovery:
Below is the output of
ls -d /Volumes/BOOTCAMP/Boot in MacOS Recovery:
Talon Meyer
Talon MeyerTalon Meyer
1 Answer
With the release of High Sierra, Apple has forgotten about the needs of Windows 7 users. The right (or is it wrong) combination of commands causes eraser of the values stored in the Master Boot Record (MBR) table. Windows 7 uses these values to determine the partitioning of the drive. Fortunately, these values are duplicated in the GUID partition table (GPT). Unfortunately, you will have to preform the tedious task of reentering the missing values.
Unless you disable System Integrity Protection (SIP), the solutions given below requires booting to macOS Recovery via the internet, built-in recovery or an USB flash drive macOS installer. Once booted to macOS Recovery, open a Terminal application window.
Note: The Terminal application can be found under 'Utilities' on the menu bar.
Solution without Using Third Party Tools
The answer given below is based on my answer to the question How to convert a drive from the GPT format to the hybrid GPT/MBR format when using High Sierra (macOS 10.13.2). You should read this question and answer before proceeding.The command given below can be used to partially display the information contained in GUID partition table (GPT) stored on
disk0 . You will need this information when editing the Master Boot Record (MBR) table.
Here are the steps involving in editing the MBR table to create a hybrid partitioning scheme. You will be preforming the same steps as given in this answer, except for the changes given below.
Solution Using a Third Party Tool
The command
gdisk is a third party tool that can be used to avoid having to manually enter the partition values from the GPT. You can download gdisk from this SourceForge website. Once booted to macOS Recovery, you would need to enter the command given below.
Note: I assume the name of your macOS boot volume is
HARDDISK . If not, make the appropriate substitution.
An example of your input to
gdisk is given below.
Tl sg2424 how to connect. As the above message suggests, it would be a good idea to restart the Mac.
Final Thoughts
If you Mac still fail to boot to Windows, then you will need to rebuild your Windows boot code. For this you will need a flash drive you used to install Windows 7. Let me know if you need instructions.
If you read all the way down to this point, I might as well mention the other problem. Your David Anderson
Recovery HD partition is not suppose to be 87.8 GB in size. This has nothing to do with Windows, but I thought I should point it out.
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You must log in to answer this question.protected by Community♦Mar 28 '18 at 4:01No Bootable Device Windows 10
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