@ovmaygad
What is sdb? Your 750GB drive?
It shows this:
Or it does not have a partition table, so nothing wants to try to open it. I might try testdisk to see if it can find old partitions. It is in the Ubuntu repository or available on most Linux Live repair ISOs.Invalid MBR Signature found.
https://help.ubuntu.com/community/DataRecovery
http://www.cgsecurity.org/wiki/TestDisk
repairs including testdisk info & links
http://members.iinet.net.au/~herman546/p21.html
https://help.ubuntu.com/community/Da...st%20Partition
Instructions
http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step
http://www.cgsecurity.org/wiki/Menu_Analyse
UEFI boot install & repair info - Regularly Updated :
https://ubuntuforums.org/showthread.php?t=2147295
Please use Thread Tools above first post to change to [Solved] when/if answered completely.
@Fred & other helpers: next time you see a system which has GRUB prompt and the root partition ends after the 100 first GB of the disk, please:
- first ask the user to indicate the output of ls -l at the grub prompt.
- then ask the user to use Gparted in order to either create a /boot partition inside the first 100GB, or (if the root partition starts before the first 80GB) reduce / to make it fit inside the first 100GB.
If this solves the boot problem, then please report it to https://bugs.launchpad.net/ubuntu/+s...2/+bug/1081752 , this will help to solve the bug.
Will these tool help me to install grub-efi on fakeraid system for dualboot with windows and ubuntu?
P.S. My problem is described here:
http://ubuntuforums.org/showthread.p...9#post12466859
Thanks a lot. Though I don't need it now, but hopefully it will help when it's required.
Hi.
Second night I'm wake trying to solve the problem by myself, but no luck...
Log is @ http://paste.ubuntu.com/1557247/
I have two partitions on GPT drive, this is not my bootable drive.
sdc1 - contains Ubuntu Intallation
sdc2 - Contains /home partition.
Using boot-repair:
I install grub it on sdc without override windows boot loader.
(boot-repair correctly recognized that I have Ubuntu on sdc1)
I add the grub2 entry in windows loader
And indeed indeed after rebooting I got windows 8 boot menu and Ubuntu in it.
So far so good - exactly as I planed.
Choosing 'Ubuntu,' grub menu appears ***BUT*** only with windows entries - which I have no idea where it take them - but the point is that no entry for Linux in grub menu.
Maybe it is related to the fact that my drive is GPT ? (I created bios grub partition).
Also my BIOS does not support GPT (does it matter ? I'm not booting from GPT drive).
It is really important to me to leave the DRIVE as GPT. I'm tired of MSDOS table limitation.
Please Help.
Thanks
After installing Ubuntu 12.04 LTS, I couldn't boot Windows 7 anymore. So I burned a cd and gave Boot-Repair a try.
The steps I followed were:
1/ wrote a backup to a USB key.
2/ recorded a "before" boot info : http://paste.ubuntu.com/1558986/
3/ chose the default 1 click repair
After repairing I couldn't boot any OS at all The after "repairing" info is at http://paste.ubuntu.com/1559026/
Then I couldn't figure out how to use the backup I had made, so now my system is completely unbootable.
I would really like to, at least, be able to restore the backup and boot Ubuntu like I could before using Boot-Repair.
@boaznahum
Have you tried booting from sdc? Since you have multiple drives you should be able to have the Windows boot loader in the Windows drive and the grub boot loader in the Ubuntu drive and just boot grub. No need for a Windows boot loader that uses the Windows version of grub grub4dos.
@fharper1961
You have Windows in UEFI mode on sda and Ubuntu in BIOS mode on sdb. Both must be the same to dual boot. But you may be able to boot by going into UEFI menu and either turning on or off UEFI mode and booting. A lot of hassle.
You did turn off fast boot? If not you may have major issues. Some only can get back into UEFI/BIOS thru Windows if fast boot is on.
UEFI boot install & repair info - Regularly Updated :
https://ubuntuforums.org/showthread.php?t=2147295
Please use Thread Tools above first post to change to [Solved] when/if answered completely.
@oldfred
Thanks for the tips! I think I should try to re-install Ubuntu in UEFI mode. But first I need to get the system to boot again. How can I use the backup I made to get back to the original state before I used Boot-repair for the first time?
I managed to restore a generic MBR on sdb1, which is the drive I'm using for Ubuntu. But I still haven't figured out how to restore the MBR for sda3 from the backup I made using Boot-Repair.
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