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  #1  
Old 4th December 2012, 09:03 PM
Salkin Offline
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Join Date: Dec 2012
Location: Germany
Posts: 2
linuxfirefox
bootloader problem: no dual-boot of fedora 17 and Win7

Hello!

I installed fedora on a PC with Win7 on it from live-usb and had an error:
"There was an error installing the bootloader. The system may not be bootable. "

I rebooted and Win7 startet without a choise.

Then I tried to install Fedora again this time I choose to install grub at the fedora partition and it worked without error, but the restart started Win7 again.

I started Live-Usb and gparted and set boot-flag to the linux partition and fedora started with grub, but chosing Win7 couses an error.
I can start Win7 by setting the boot-flag to the Win7 start partition.

I tried to reinstall grub2 from the installed fedora by
Code:
sudo grub2-install /dev/sda
and
Code:
grub2-mkconfig -o /boot/grub2/grub.cfg
output:

Code:
Linux-Abbild gefunden: /boot/vmlinuz-3.6.8-2.fc17.x86_64
initrd-Abbild gefunden: /boot/initramfs-3.6.8-2.fc17.x86_64.img
Linux-Abbild gefunden: /boot/vmlinuz-3.3.4-5.fc17.x86_64
initrd-Abbild gefunden: /boot/initramfs-3.3.4-5.fc17.x86_64.img
  No volume groups found
Windows 7 (loader) auf /dev/sda1 gefunden
Code:
/usr/sbin/grub2-bios-setup: Warnung: Dieses LDM hat keine Einbettungspartition, Einbettung würde unmöglich sein.
/usr/sbin/grub2-bios-setup: Warnung: Einbettung ist nicht möglich. GRUB kann in dieser Konfiguration nur mittels Blocklisten installiert werden. Blocklisten sind allerdings UNZUVERLÄSSIG und deren Verwendung wird daher nicht empfohlen..
/usr/sbin/grub2-bios-setup: Fehler: mit Blocklisten wird nicht fortgesetzt.
=This LDM doesn't have an embedding partition. Embedding is not possible. GRUB can only be installed on this setup using blocklists. However, blocklists are unreliable and their use is discouraged.

I also tried the --force option and the workaround https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1061255/comments/26

the output of fdis -l:

Code:
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 Köpfe, 63 Sektoren/Spur, 60801 Zylinder, zusammen 976773168 Sektoren
Einheiten = Sektoren von 1 × 512 = 512 Bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x4492e2c4

   Gerät  boot.     Anfang        Ende     Blöcke   Id  System
/dev/sda1            2048      206847      102400    7  HPFS/NTFS/exFAT
/dev/sda2          206848   105064447    52428800    7  HPFS/NTFS/exFAT
/dev/sda3   *   105064448   157569023    26252288   83  Linux
/dev/sda4       157569024   976771071   409601024    f  W95 Erw. (LBA)
/dev/sda5       157571072   954718207   398573568    7  HPFS/NTFS/exFAT
/dev/sda6       954720256   975200255    10240000    7  HPFS/NTFS/exFAT
/dev/sda7       975202304   976771071      784384   82  Linux Swap / Solaris
fedora is installed on sda3, Win7 on sda2, sda5 is Data in NTFS, sda6 is a Win7 Systemfile partition and sda7 is swap.

Can anybody help my by installing a proper bootloader to dualboot Win7 and fedora?

Thanks a lot! And I hope my english is ok.
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  #2  
Old 4th December 2012, 09:43 PM
mikee Offline
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Join Date: Aug 2011
Location: Minnesota
Posts: 521
linuxfirefox
Re: bootloader problem: no dual-boot of fedora 17 and Win7

The "error installing bootloader" means that the windows boot loader is still in the MBR, and so it happily just starts windows.
I believe you need the --force option on grub2-install, but you might want to wait and see if someone concurs...
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  #3  
Old 4th December 2012, 09:48 PM
Salkin Offline
Registered User
 
Join Date: Dec 2012
Location: Germany
Posts: 2
linuxfirefox
Re: bootloader problem: no dual-boot of fedora 17 and Win7

Thanks for quick response!
I already tried
Code:
grub2-install --force --recheck /dev/sda
(as root)
and i got the same output
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