no such partition, grub rescue

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.

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.

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

Original title: How can i solve (un)booting windows 7 on the same partition with grub?

I've been researching for 2/3 days about this problem and I have came up empty.

Basically, partition 1 is Windows 7 and partition 2 is Ubuntu 12.04. I told Ubuntu to install into partition 2 and to install grub on partition 1 and that works fine. But the problem now is that I can't boot to Windows 7.

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.

I tried to delete old ubuntu on dual-boot via win7 to get more win space (partition had non-ajacent NTFS free disk partitions and woldn't allow me to move in either gparted or win) and reinstalled ubuntu with alongside windows selected. I left about 1/2 NTFS and 1/2 ext3 before reinstalling ubuntu.

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.

Iv been researching for 2/3 days about this problem and i have came up empty. Basically, partition 1 is windows 7 and partition 2 is ubuntu 12.04. I told ubuntu (when installing to partition 2) to install grub on partition 1, and that works fine.

I recently upgraded to 12.04. After booting I only got the grub shell with no kernels loaded. I tried running boot repair. It told me I use GPT and would need to create a new grub-boot partition. I did this and ran boot repair again successfully. However I now get only a blinking underscore on boot and don't even get a grub shell. Any ideas?