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Old 08-03-2015, 08:34 AM   #1
k@nch@
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Unable to dual boot after install RHEL7 in windows 7 running laptop


Hi all,
I installed RHEL7 in sony vaio laptop which comes original windows 7 installed,
I
Now only booting RHEL7, when i checked in rhel7 by "fdisk -l" my all previous windows partition can be seen.

Please help me with this.
Thank you
 
Old 08-03-2015, 09:01 AM   #2
wagscat123
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Try running
Code:
grub2-mkconfig
and see if its entry is in /boot/grub2/grub.cfg
 
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Old 08-03-2015, 12:23 PM   #3
yancek
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If running the grub2-mkconfig command as root does not solve the problem, I would suggest you go to the site below and download and run the bootinfoscript which will output a results.txt file. Post it here as it will have detailed information on your drives/partitions and boot files and someone should be able to help.

http://sourceforge.net/projects/boot-repair-cd/files/
 
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Old 08-03-2015, 08:19 PM   #4
John VV
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did you make room on the drive FIRST ?
if not you replaced Win7 with RHEL7

if you did and you put grub on the MBR

well you REPLACED the microsoft bootloader AND!!! the win7 "RESCUE partition " with GRUB
( OEM'es placed the windows7 bootloader in the hidden RESCUE partition for 7 - this replaced the install dvd )
you might NEED that windows 7 install dvd


now rhel can boot windows BUT it is BEST to "chainload" to it
that means NOT replacing the microsoft bootloader
and using the FIRST linux partition as the BOOT partition


you did read the redhat install guide ? RIGHT ?
this is all explained in it

also RHEL 7 is NOT free !!!
you DO have to BUY $$$ the required support contract
there are NO " if's and's or but's" IT IS REQUIRED
a standard one year contract is $ 299 PER YEAR ( there is a $49 / year self support )


but the required contract
or do not use rhel and instead use one of the FREE rebuilds

install CentOS 7.1
or install
ScientificLinux 7.1
 
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Old 08-04-2015, 01:01 AM   #5
k@nch@
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Yes, i left separate space for RHEL, All windows partitions are visible, i'll check your solution





Quote:
Originally Posted by John VV View Post
did you make room on the drive FIRST ?
if not you replaced Win7 with RHEL7

if you did and you put grub on the MBR

well you REPLACED the microsoft bootloader AND!!! the win7 "RESCUE partition " with GRUB
( OEM'es placed the windows7 bootloader in the hidden RESCUE partition for 7 - this replaced the install dvd )
you might NEED that windows 7 install dvd


now rhel can boot windows BUT it is BEST to "chainload" to it
that means NOT replacing the microsoft bootloader
and using the FIRST linux partition as the BOOT partition


you did read the redhat install guide ? RIGHT ?
this is all explained in it

also RHEL 7 is NOT free !!!
you DO have to BUY $$$ the required support contract
there are NO " if's and's or but's" IT IS REQUIRED
a standard one year contract is $ 299 PER YEAR ( there is a $49 / year self support )


but the required contract
or do not use rhel and instead use one of the FREE rebuilds

install CentOS 7.1
or install
ScientificLinux 7.1
 
Old 08-04-2015, 11:00 AM   #6
wagscat123
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What was the solution for those who may have a similar problem in the future?
 
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Old 08-05-2015, 12:59 AM   #7
k@nch@
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Solution

https://youtu.be/dJOCWhW6Stw
 
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Old 08-05-2015, 09:12 AM   #8
wagscat123
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Thanks - hopefully it will help out someone in the future
 
Old 09-15-2017, 06:37 AM   #9
mukulmanitiwari
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Thumbs up Dual boot with windows 10 and RHEL 7. Windows boot options is not showing in boot list

Quote:
Originally Posted by k@nch@ View Post
This is very useful link. After editing /etc/grub.d/41_custom Problem solved.

Thank you so much.
 
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