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[ubuntu] update from 11.10 to 12.04 won't boot, Grub problem

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http://ubuntuforums.org – Dual boot system, Win XP and Ubuntu 11 with Grub, working fine. Update from 11.10 to 12.04 runs smooth, at end I reboot. At boot, Grub menu won't appear, I get: error: out of partition grub rescue> Tried the boot-repair disk. Single click "fix" has no effect, same problem. Links to system info from boot-repair: http://paste.ubuntu.com/1033099 http://paste.ubuntu.com/1033112 http://paste.ubuntu.com/1033126 Boot-repair says /dev/sda6 (my Ubuntu boot partition) looks for core.img at 484962101 but it isn't there. Booted to GPartEd, went to cmd prompted, tried this: mount /dev/sda6 (Hardware)

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Submitted by colm on 06/10/2012 – Made popular on 06/10/2012

Stories similar to [ubuntu] update from 11.10 to 12.04 won't boot, Grub problem

I installed Ubuntu 12.04 in my computer without problems, but after rebooting i got the following error:

Error: No such partition grub rescue>

I am a novice with ubuntu and any detailed instructions to the problem will be highly appreciated.

I ran boot repair as per the following:

sudo add-apt-repository ppa:yannubuntu/boot-repair sudo apt-get update sudo apt-get install -y boot-repair boo

Following a fresh install of 12.04 on a dual HDD dual boot system first boot brought up Grub Rescue.

I installed Boot Repair in a live CD and ran the recommended repair. Boot Repair indicated a successful repair.

Upon reboot there is no entry for Win XP.

Gparted shows sda as full as it was before installing 12.04.

Hello, I've just tried upgrading Ubuntu from 12.04 to 12.10, when the system restarted the "grub rescue" prompt was displayed. I've tried booting into ubuntu through a live usb, installed boot repair and run it, but I am getting the following

Quote:

Locked-ESP detected.

Hi,

I am very new to ubuntu so please forgive my ignorance. I have installed ubuntu 12.04 onto my netbook via usb which all seemed fine until it did it's first restart and now just cannot find the system at all unless i have the usb plugged in. I need to get the grub from the usb over to the hd but nothing as of yet has worked for me.

Ok, so I'm having this problem. I have also seen something called Boot Repair

Any help?

After a clean install of Ubuntu 12.10 the system won’t boot. After the BIOS screen I get the message: “Error 1692: No operating system found”

I ran the ‘boot-repair’ utility without success. Here is the boot info that utility generated:

http://paste.ubuntu.com/5695250/

Everything looks correct as far as I can tell.

Basically the system won’t boot. After the BIOS screen I get the message: “Error 1692: No operating system found”

I ran the ‘boot-repair’ utility without success. Here is the boot info that utility generated:

http://paste.ubuntu.com/5695250/

Everything looks correct as far as I can tell. I booted a liveCD, mounted /dev/sda1, and poked around the “EFI” directory.

So, I don't know what exactly how I managed to delete the MBR record on windows partition. But let me explain what I did next, I ran the ubuntu boot repair tool and now Windows is not even listed in my grub loader.

So I went and booted with windows cd and choose repair. Then I ran ubuntu boot repair again via live cd. Here is the log http://paste.ubuntu.com/1426181/. Still no luck.

After already having a dual boot (win7 and Ubuntu) I wanted to add Mint. During installation from flash, the install had an error while configuring the HDD partition and apparently deleted a partition and GRUB. I downloaded "repair-boot" and let it run. Now GRUB doesn't even show. The comp boots only into win7. No GRUB at all.