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Dual booting
Dual booting
I just installed debian along side windows 8.1. I can't boot into windows now. I googled and read everything and tried it all but I think the problem is that I can't find anything that works is because everything is written for ubuntu. I've tried os-prober and update-grub with no luck. I'd post links but I've tried so many things I don't know where to start. I'm sorry I can't give more information but I really am stumped.
Re: Dual booting
What version of Debian? And also, please post the output of:
(run as root)fdisk -l
ASRock H77 Pro4-M i7 3770K - 32GB RAM - Pioneer BDR-209D
Re: Dual booting
Jessie
Sorry I'm pretty new to this and it's the first time I've dual booted with windows,
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/dev/sda1 2048 1026047 1024000 500M EFI System
/dev/sda2 1026048 1107967 81920 40M unknown
/dev/sda3 1107968 1370111 262144 128M Linux filesystem
/dev/sda4 1370112 2394111 1024000 500M Windows recovery environment
/dev/sda5 2394112 868732927 866338816 413.1G Microsoft basic data
/dev/sda6 868732928 919932927 51200000 24.4G Linux root (x86-64)
/dev/sda7 919932928 940412927 20480000 9.8G Linux filesystem
/dev/sda8 940412928 950652927 10240000 4.9G Linux swap
/dev/sda9 950652928 951574527 921600 450M Windows recovery environment
/dev/sda10 951574528 952291327 716800 350M Windows recovery environment
/dev/sda11 952291328 976771119 24479792 11.7G Windows recovery environment
Re: Dual booting
What is the output of:
Code: Select all
[ -d /sys/firmware/efi ] && echo "EFI boot on HDD" || echo "Legacy boot on HDD"
ASRock H77 Pro4-M i7 3770K - 32GB RAM - Pioneer BDR-209D
Re: Dual booting
If memory serves me right, there has been a long standing problem with Win8.x and dual booting.
The best way to dual boot is if your mobo BIOS will permit you to choose boot device. My Intel mobo does.
Then disable with Win drive, and Install Linux on another drive. So that it never sees the Win drive during install.
When all is working, reconnect the Win drive - and choose whatever you want to boot to in BIOS. Just be sure to note what drive type is booting what.
And do not ever, ever 'update grub'.
There is also a USB stick util whose name escapes me that will handle multiboots. But beware - it does use grub.
The problem with grub is that it will take out the master Boot Record on a Win drive, requiring a 'fixmbr' from an external boot device.
Even if you remove Linux, the Win drive will be unbootable, until repaired.
I personally regard grub as evil.
The best way to dual boot is if your mobo BIOS will permit you to choose boot device. My Intel mobo does.
Then disable with Win drive, and Install Linux on another drive. So that it never sees the Win drive during install.
When all is working, reconnect the Win drive - and choose whatever you want to boot to in BIOS. Just be sure to note what drive type is booting what.
And do not ever, ever 'update grub'.
There is also a USB stick util whose name escapes me that will handle multiboots. But beware - it does use grub.
The problem with grub is that it will take out the master Boot Record on a Win drive, requiring a 'fixmbr' from an external boot device.
Even if you remove Linux, the Win drive will be unbootable, until repaired.
I personally regard grub as evil.
Re: Dual booting
The OP has an EFI partition. Therefore no MBR.millpond wrote:The problem with grub is that it will take out the master Boot Record on a Win drive
ASRock H77 Pro4-M i7 3770K - 32GB RAM - Pioneer BDR-209D
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Re: Dual booting
The OP may have enabled legacy boot to install Debian, therefore causing the boot failure of Windows (it still wants UEFI) as the system could be booting from MBR now, but unless OP gives requested information we can all just keep guessing and I'm sure somebody will be right if we all have a guess.phenest wrote:The OP has an EFI partition. Therefore no MBR.millpond wrote:The problem with grub is that it will take out the master Boot Record on a Win drive
Re: Dual booting
I did ask the OP to show us the output of a command so we would know how it was installed. But they failed to submit that.
As for Windows: There is no way to know how it was installed, and which OS is using the EFI. if Windows is booted via EFI then it will continue to be perfectly bootable without need for repair, providing Debian is also installed via EFI. If Debian is installed via Legacy, then that would be why Windows isn't even detectable.
This was the OP's last reply:
As for Windows: There is no way to know how it was installed, and which OS is using the EFI. if Windows is booted via EFI then it will continue to be perfectly bootable without need for repair, providing Debian is also installed via EFI. If Debian is installed via Legacy, then that would be why Windows isn't even detectable.
This was the OP's last reply:
Wish I could say the same.sfa1976 wrote:okay thanks for all the infornation
ASRock H77 Pro4-M i7 3770K - 32GB RAM - Pioneer BDR-209D