Operating System not found after installing Redhat 6 on Windows 7
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I have installed Red hat with Windows 7, now I can use the Red Hat OS but not Windows 7 I'm getting boot options as Linux and Other, but whenever I select "Other" boot option, I'm getting message as "Operating System not Found you can reboot with Ctrl+Alt+Del "
grub
edited Mar 9 at 13:24
Rui F Ribeiro
41.9k1483142
asked Jul 31 '15 at 10:51
ahad03ahad03
814
add a comment |
I have installed Red hat with Windows 7, now I can use the Red Hat OS but not Windows 7 I'm getting boot options as Linux and Other, but whenever I select "Other" boot option, I'm getting message as "Operating System not Found you can reboot with Ctrl+Alt+Del "
grub
edited Mar 9 at 13:24
Rui F Ribeiro
41.9k1483142
asked Jul 31 '15 at 10:51
ahad03ahad03
814
Check you did not accidentally erase the partition: From linux, runsudo fdisk -l /dev/sda(presuming that is your harddrive), and cut n' paste the output into your question.
– goldilocks
Jul 31 '15 at 12:38
Do you remember which option you chose when partitioning the disk? Something like "Use full disk" or "Use free space non used by other OSes"?
– dr01
Jul 31 '15 at 13:17
add a comment |
I have installed Red hat with Windows 7, now I can use the Red Hat OS but not Windows 7 I'm getting boot options as Linux and Other, but whenever I select "Other" boot option, I'm getting message as "Operating System not Found you can reboot with Ctrl+Alt+Del "
grub
edited Mar 9 at 13:24
Rui F Ribeiro
41.9k1483142
asked Jul 31 '15 at 10:51
ahad03ahad03
814
I have installed Red hat with Windows 7, now I can use the Red Hat OS but not Windows 7 I'm getting boot options as Linux and Other, but whenever I select "Other" boot option, I'm getting message as "Operating System not Found you can reboot with Ctrl+Alt+Del "
grub
grub
edited Mar 9 at 13:24
Rui F Ribeiro
41.9k1483142
asked Jul 31 '15 at 10:51
ahad03ahad03
814
edited Mar 9 at 13:24
Rui F Ribeiro
41.9k1483142
asked Jul 31 '15 at 10:51
ahad03ahad03
814
edited Mar 9 at 13:24
Rui F Ribeiro
41.9k1483142
edited Mar 9 at 13:24
Rui F Ribeiro
41.9k1483142
edited Mar 9 at 13:24
Rui F Ribeiro
41.9k1483142
41.9k1483142
asked Jul 31 '15 at 10:51
ahad03ahad03
814
asked Jul 31 '15 at 10:51
ahad03ahad03
814
asked Jul 31 '15 at 10:51
ahad03ahad03
814
814
Check you did not accidentally erase the partition: From linux, runsudo fdisk -l /dev/sda(presuming that is your harddrive), and cut n' paste the output into your question.
– goldilocks
Jul 31 '15 at 12:38
Do you remember which option you chose when partitioning the disk? Something like "Use full disk" or "Use free space non used by other OSes"?
– dr01
Jul 31 '15 at 13:17
add a comment |
Check you did not accidentally erase the partition: From linux, runsudo fdisk -l /dev/sda(presuming that is your harddrive), and cut n' paste the output into your question.
– goldilocks
Jul 31 '15 at 12:38
Do you remember which option you chose when partitioning the disk? Something like "Use full disk" or "Use free space non used by other OSes"?
– dr01
Jul 31 '15 at 13:17
Check you did not accidentally erase the partition: From linux, run
sudo fdisk -l /dev/sda (presuming that is your harddrive), and cut n' paste the output into your question.– goldilocks
Jul 31 '15 at 12:38
Check you did not accidentally erase the partition: From linux, run
sudo fdisk -l /dev/sda (presuming that is your harddrive), and cut n' paste the output into your question.– goldilocks
Jul 31 '15 at 12:38
Do you remember which option you chose when partitioning the disk? Something like "Use full disk" or "Use free space non used by other OSes"?
– dr01
Jul 31 '15 at 13:17
Do you remember which option you chose when partitioning the disk? Something like "Use full disk" or "Use free space non used by other OSes"?
– dr01
Jul 31 '15 at 13:17
add a comment |
1 Answer
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active
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votes
You've probably not added Windows to the boot loader. Boot into Linux and run
sudo grub-mkconfig -o /boot/grub/grub.cfg
That will generate your GRUB config file. If you have multiple operating systems installed, make sure that the command above lists all of them. For example:
$ sudo grub-mkconfig -o /boot/grub/grub.cfg
Generating grub.cfg ...
Found background image: /usr/share/images/desktop-base/desktop-grub.png
Found linux image: /boot/vmlinuz-3.10-2-amd64
Found initrd image: /boot/initrd.img-3.10-2-amd64
Found linux image: /boot/vmlinuz-3.2.0-4-amd64
Found initrd image: /boot/initrd.img-3.2.0-4-amd64
Found linux image: /boot/vmlinuz-3.2.0-3-amd64
Found initrd image: /boot/initrd.img-3.2.0-3-amd64
Found linux image: /boot/vmlinuz-3.2.0-2-amd64
Found initrd image: /boot/initrd.img-3.2.0-2-amd64
Found memtest86+ image: /boot/memtest86+.bin
Found memtest86+ multiboot image: /boot/memtest86+_multiboot.bin
Found Windows 7 (loader) on /dev/sda2
done
Double check that Windows is listed. Now, install grub to the MBR of your drive (remember to change /dev/sda to whichever drive you actually want to install it on)
sudo grub-install /dev/sda
sudo grub-install --recheck /dev/sdb
Now reboot and you should be able to boot into Windows. If you can't, or if the grub-mkconfig command didn't list any Windows OS, make sure you didn't install RedHat on the Windows partition. If you did, you'll have to reinstall Windows.
answered Jul 31 '15 at 14:25
terdon♦terdon
133k33268449
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You've probably not added Windows to the boot loader. Boot into Linux and run
sudo grub-mkconfig -o /boot/grub/grub.cfg
That will generate your GRUB config file. If you have multiple operating systems installed, make sure that the command above lists all of them. For example:
$ sudo grub-mkconfig -o /boot/grub/grub.cfg
Generating grub.cfg ...
Found background image: /usr/share/images/desktop-base/desktop-grub.png
Found linux image: /boot/vmlinuz-3.10-2-amd64
Found initrd image: /boot/initrd.img-3.10-2-amd64
Found linux image: /boot/vmlinuz-3.2.0-4-amd64
Found initrd image: /boot/initrd.img-3.2.0-4-amd64
Found linux image: /boot/vmlinuz-3.2.0-3-amd64
Found initrd image: /boot/initrd.img-3.2.0-3-amd64
Found linux image: /boot/vmlinuz-3.2.0-2-amd64
Found initrd image: /boot/initrd.img-3.2.0-2-amd64
Found memtest86+ image: /boot/memtest86+.bin
Found memtest86+ multiboot image: /boot/memtest86+_multiboot.bin
Found Windows 7 (loader) on /dev/sda2
done
Double check that Windows is listed. Now, install grub to the MBR of your drive (remember to change /dev/sda to whichever drive you actually want to install it on)
sudo grub-install /dev/sda
sudo grub-install --recheck /dev/sdb
Now reboot and you should be able to boot into Windows. If you can't, or if the grub-mkconfig command didn't list any Windows OS, make sure you didn't install RedHat on the Windows partition. If you did, you'll have to reinstall Windows.
answered Jul 31 '15 at 14:25
terdon♦terdon
133k33268449
add a comment |
You've probably not added Windows to the boot loader. Boot into Linux and run
sudo grub-mkconfig -o /boot/grub/grub.cfg
That will generate your GRUB config file. If you have multiple operating systems installed, make sure that the command above lists all of them. For example:
$ sudo grub-mkconfig -o /boot/grub/grub.cfg
Generating grub.cfg ...
Found background image: /usr/share/images/desktop-base/desktop-grub.png
Found linux image: /boot/vmlinuz-3.10-2-amd64
Found initrd image: /boot/initrd.img-3.10-2-amd64
Found linux image: /boot/vmlinuz-3.2.0-4-amd64
Found initrd image: /boot/initrd.img-3.2.0-4-amd64
Found linux image: /boot/vmlinuz-3.2.0-3-amd64
Found initrd image: /boot/initrd.img-3.2.0-3-amd64
Found linux image: /boot/vmlinuz-3.2.0-2-amd64
Found initrd image: /boot/initrd.img-3.2.0-2-amd64
Found memtest86+ image: /boot/memtest86+.bin
Found memtest86+ multiboot image: /boot/memtest86+_multiboot.bin
Found Windows 7 (loader) on /dev/sda2
done
Double check that Windows is listed. Now, install grub to the MBR of your drive (remember to change /dev/sda to whichever drive you actually want to install it on)
sudo grub-install /dev/sda
sudo grub-install --recheck /dev/sdb
Now reboot and you should be able to boot into Windows. If you can't, or if the grub-mkconfig command didn't list any Windows OS, make sure you didn't install RedHat on the Windows partition. If you did, you'll have to reinstall Windows.
answered Jul 31 '15 at 14:25
terdon♦terdon
133k33268449
add a comment |
You've probably not added Windows to the boot loader. Boot into Linux and run
sudo grub-mkconfig -o /boot/grub/grub.cfg
That will generate your GRUB config file. If you have multiple operating systems installed, make sure that the command above lists all of them. For example:
$ sudo grub-mkconfig -o /boot/grub/grub.cfg
Generating grub.cfg ...
Found background image: /usr/share/images/desktop-base/desktop-grub.png
Found linux image: /boot/vmlinuz-3.10-2-amd64
Found initrd image: /boot/initrd.img-3.10-2-amd64
Found linux image: /boot/vmlinuz-3.2.0-4-amd64
Found initrd image: /boot/initrd.img-3.2.0-4-amd64
Found linux image: /boot/vmlinuz-3.2.0-3-amd64
Found initrd image: /boot/initrd.img-3.2.0-3-amd64
Found linux image: /boot/vmlinuz-3.2.0-2-amd64
Found initrd image: /boot/initrd.img-3.2.0-2-amd64
Found memtest86+ image: /boot/memtest86+.bin
Found memtest86+ multiboot image: /boot/memtest86+_multiboot.bin
Found Windows 7 (loader) on /dev/sda2
done
Double check that Windows is listed. Now, install grub to the MBR of your drive (remember to change /dev/sda to whichever drive you actually want to install it on)
sudo grub-install /dev/sda
sudo grub-install --recheck /dev/sdb
Now reboot and you should be able to boot into Windows. If you can't, or if the grub-mkconfig command didn't list any Windows OS, make sure you didn't install RedHat on the Windows partition. If you did, you'll have to reinstall Windows.
answered Jul 31 '15 at 14:25
terdon♦terdon
133k33268449
You've probably not added Windows to the boot loader. Boot into Linux and run
sudo grub-mkconfig -o /boot/grub/grub.cfg
That will generate your GRUB config file. If you have multiple operating systems installed, make sure that the command above lists all of them. For example:
$ sudo grub-mkconfig -o /boot/grub/grub.cfg
Generating grub.cfg ...
Found background image: /usr/share/images/desktop-base/desktop-grub.png
Found linux image: /boot/vmlinuz-3.10-2-amd64
Found initrd image: /boot/initrd.img-3.10-2-amd64
Found linux image: /boot/vmlinuz-3.2.0-4-amd64
Found initrd image: /boot/initrd.img-3.2.0-4-amd64
Found linux image: /boot/vmlinuz-3.2.0-3-amd64
Found initrd image: /boot/initrd.img-3.2.0-3-amd64
Found linux image: /boot/vmlinuz-3.2.0-2-amd64
Found initrd image: /boot/initrd.img-3.2.0-2-amd64
Found memtest86+ image: /boot/memtest86+.bin
Found memtest86+ multiboot image: /boot/memtest86+_multiboot.bin
Found Windows 7 (loader) on /dev/sda2
done
Double check that Windows is listed. Now, install grub to the MBR of your drive (remember to change /dev/sda to whichever drive you actually want to install it on)
sudo grub-install /dev/sda
sudo grub-install --recheck /dev/sdb
Now reboot and you should be able to boot into Windows. If you can't, or if the grub-mkconfig command didn't list any Windows OS, make sure you didn't install RedHat on the Windows partition. If you did, you'll have to reinstall Windows.
answered Jul 31 '15 at 14:25
terdon♦terdon
133k33268449
answered Jul 31 '15 at 14:25
terdon♦terdon
133k33268449
answered Jul 31 '15 at 14:25
terdon♦terdon
133k33268449
answered Jul 31 '15 at 14:25
terdon♦terdon
133k33268449
133k33268449
add a comment |
add a comment |
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Check you did not accidentally erase the partition: From linux, run
sudo fdisk -l /dev/sda(presuming that is your harddrive), and cut n' paste the output into your question.– goldilocks
Jul 31 '15 at 12:38
Do you remember which option you chose when partitioning the disk? Something like "Use full disk" or "Use free space non used by other OSes"?
– dr01
Jul 31 '15 at 13:17