Bootcamp Missing Operating System

Missing Operating System Windows 7 Bootcamp on Mac OS X Lion 10.7. After modifying this to actually point to the Windows partition, log out and use the bootpicker screen to select Windows, walah! Hope this helps others, please let me know by clicking on the vote link below! If you found this information useful, click here to vote! No registration required.

  • The boot hard drive is damaged; Sector 0 of the hard disk has an damaged master boot record ( third-party programs or disk corruption can damage an MBR) An incompatible partition is marked as 'active' A partition that contains the MBR is no longer active; If the MBR is corrupted, you could try to boot from the Windows installation DVD-ROM and use the.
  • I get a 'missing operating system' message when I try to boot my computer using Windows 7. This just happened - no new hardware or devices have been installed. I have tried using the windows installation disk repair, but get a message that repair cannot be done automatically.

Bootcamp Missing Operating System Windows 7

Missing operating system windows 7

I need the SP1 on Windows 7, but I get always an error when I want to install it.I read that it is because I have a dual boot Windows 7 + Ubuntu. And after installing Ubuntu, GRUB2 overwrote the Windows 7 mbr or something like that.So I wanted to fix it. I read that you should boot Windows 7 with a DVD, then click on Windows repair and then in the cmd write the command 'bootrec.exe /fixmbr' to recover the Windows mbr and delete GRUB2. But after restarting my PC - no GRUB2, but also 'missing operating systrem'.So what should I do? I hope you can help me. Thanks in advance!

SLOWLYs-MacBook-Pro: slowlyrain$ diskutil list /dev/disk0/dev/disk0#: TYPE NAME SIZE IDENTIFIER0: GUIDpartitionscheme.256.1 GB disk01: EFI 209.7 MB disk0s12: AppleHFS MACOSX 100.0 GB disk0s23: Microsoft Basic Data DATA 130.7 GB disk0s34: Microsoft Basic Data BOOTCAMP 25.0 GB disk0s4SLOWLYs-MacBook-Pro: slowlyrain$ sudo gpt -r show -l /dev/disk0WARNING: Improper use of the sudo command could lead to data lossor the deletion of important system files. Please double-check yourtyping when using sudo. Note: to preserve spacing in the output, surround it with code and code instead of QUOTE and /QUOTE or attach a txt file to the post.Which version of Windows are you using?Are you able to boot your Mac into the Boot Camp partition? The MBR (output from fdisk) says the DATA partition is set as the boot partition.Which Windows partition has the boot files (DATA or BOOTCAMP)?Which Windows partition has the Windows folder?Which boot files are on the partitions?(C:bootmgr and C:BootBCD for new Windows Vista or Windows 7)(C:ntldr and C:boot.ini for Windows XP)Use the following commands to list the files. Code:ls -l /Volumes/DATA/ /Volume/DATA/Boot/ls -l /Volumes/BOOTCAMP/ /Volume/BOOTCAMP/Boot/If DATA contains the boot files, but Windows is on the BOOTCAMP partition, then you need to make sure that both partitions are selected in Virtual Machine - Configure. Hardware - Hard Disk 1 - Edit Partitions - select each partition that you want to be visible in the VM - OK.It might be better to move the boot files to the same disk containing Windows (if they're not already there). Use to do that.

The Windows XP boot files are on the partition named DATA.The WINDOWS folder (that contains Windows XP) is on the partition named BOOTCAMP.You need to do one of the following (A or B) to boot your BOOTCAMP partition in Parallels:A) Make sure the virtual hard disk includes both partitions. Go to Virtual Machine - Configure. Hardware - Hard Disk 1 - Edit Partitions, then make sure both partition 3 and 4 are selected.B) Make BOOTCAMP bootable. Copy the boot files (ntldr, NTDETECT.COM, and boot.ini) from the DATA partition to the BOOTCAMP partition.

Bootcamp Missing Operating System

Make sure boot.ini points to partition 4 (use a text editor). Then use fdisk to set partition 4 in the MBR as the bootable partition. Code:sudo fdisk -e /dev/rdisk0To use fdisk, type '?' For help, 'p' to display the partitions, 'f 4' to flag partition 4 as the boot partition, 'p' to display your changes, 'q' to save your changes and quit. If you don't want to save changes, type 'exit' instead. After making changes to the MBR, you may need to remove the Hard Disk 1 from your Parallels virtual machine, and then add the hard disk again so that Parallels will see the change.

Bootcamp missing operating system

Bootcamp Missing Operating System Windows 7

You will only need to include partition 4 to boot Parallels. You may want to include partition 3 still so that you can see it in the Parallels virtual machine.

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