GamE asks:
I had 3 operating systems installed – Windows 7 , Fedora 13 and Mageia 2 on my Acer Aspire 4253 laptop. I deleted the partition of Mageia and my GRUB got corrupted. I didn’t have an installation DVD of either Windows 7 or Fedora, so i used Super GRUB 2 from a flash drive everytime to boot my laptop.
Today when I was using Windows 7 , my battery was critically low and laptop got hibernated . When I plugged in the power and restarted the ‘Press F2 ,F12 ‘ prompts were missing and flash drive is not getting detected after POST . What can I do now to boot my PC?
Browser: Chrome 18
System: Windows 7 , Fedora 17 , Mageia 2 (before)
Tagged: boot issue, boot loader, grub, linux tips, windows tips
System: Windows 7 , Fedora 17 , Mageia 2 (before)
Tagged: boot issue, boot loader, grub, linux tips, windows tips
7 Answers - Write an Answer
Jim Chambers
February 17, 2013For some reason your Bios has been reset to the Default Settings. Enter Bios Setup with F2 on bootup and reset to your previous settings. Use Super Grub to repair Grub on your HDD as shown here http://ubuntuforums.org/showthread.php?t=690912
hey…my bios does not show any options for booting into flash drive or cd/dvd drive since press f2 and f12 options disappeares after windows got hibernated
February 18, 2013remove AC cord then remove the CMOS battery from the motherboard for about 15 minutes. Then insert the CMOS battery and plug AC power cord. Boot to Bios and see if options are there.
February 20, 2013thanks a lot ha14 your idea worked ….
February 22, 2013glad that your problem was fixed, thanks for your feedback:)
February 24, 2013Bruce Epper
February 17, 2013Use a friend’s system or something to get a Fedora installation ISO and burn it to disk. Boot your system with your installation disk and at the installation boot prompt type ‘linux rescue’ to enter rescue mode. Type ‘chroot /mnt/sysimage’ to mount the root partition. Now, type ‘/sbin/grun-install bootpart‘ where bootpart is your boot partition (normally it will be /dev/sda). This reinstalls the GRUB bootloader. You should also manually review the /etc/grub.d/10_linux file and /etc/grub.d/40_custom to see what (if any) additional entries are needed to get your entries back for Windows.
At a minimum, this should get Fedora working for you again and from there you should be able to suss out what needs to be done to get your Win7 stuff back again.
Gaurav Joshi
February 17, 2013sudo mount /dev/sda5 /mnt *****Using the linux installation on your hard drive instead of /dev/sda5
sudo mount –bind /dev /mnt/dev
sudo mount –bind /proc /mnt/proc
sudo mount –bind /sys /mnt/sys
sudo chroot /mnt
grub-install /dev/sda *****Using your boot device instead of /dev/sda
CTRL-D
sudo umount /mnt/dev
sudo umount /mnt/proc
sudo umount /mnt/sys
sudo umount /mnt
video link :http://youtu.be/8lod8sRb_6I
or simply use boot repair disk http://sourceforge.net/projects/boot-repair-cd/
booting from cd / dvd drive and flash drive is been disabled by the bios..I could see only the acer logo and nothing else in the bios screen
February 18, 2013press f12 or delete when u see acer logo
February 28, 2013change boot order in bios
February 28, 2013Gaurav Joshi
February 17, 2013use easy bcd select your linux drive into it
ha14
February 17, 2013if your Acer has a recovery partition you can go to that screen (It should be Fx (x= 1..8..) key then use it to format the laptop to factory settings.
you should be able to purchase linux which comes with fedora cd inside, use it to repair/re-install so that to fix grub.
boot the live CD, mount your USB drive so that grub will see it, then do sudo update-grub2.
you can try Plop Boot Manager
http://www.plop.at/en/bootmanager/download.html
to see if it will help to fix your usb flash drive not detected
http://makegadgetswork.blogspot.fr/2012/02/how-to-boot-from-usb-when-bios-does-not.html
Wiki » Installation of Mageia in dual boot with Windows
https://wiki.mageia.org/en/Installation_of_Mageia_in_dual_boot_with_Windows#You_have_to_fix_the_MBR
5.1.2.3 You have to fix the MBR, you will need the recovery cd of windows, you can have from another pc uwing windows 7
http://windows.microsoft.com/en-US/windows7/Create-a-system-repair-disc
Nevzat Akkaya
February 19, 2013Try SuperGrubDisk, it saved me a couple of times when I had boot problems. It has many options to select boot device, it even automates the process. Worth trying. I wish you luck. http://www.supergrubdisk.org/category/download/supergrub2diskdownload/
Richard Barton
February 23, 2013Go to this link http://sourceforge.net/p/boot-repair/home/Home/ and download the iso,burn to disc follow instruction/prompts and you’regain acces to your pc.I keep a 1gb usb stick with this utility on just incase and it’s come in useful on more than 1 occasion.
Let me know how you get on.
Rick