GRUB ON USB BREAKS GRUB ON SYSTEM ISO
GRUB ON USB BREAKS GRUB ON SYSTEM WINDOWS 7

If the option to Repair your computer is available in the advanced options boot menu, you could run Startup repair to check for and (maybe) correct problems in your Windows boot setup.

GRUB ON USB BREAKS GRUB ON SYSTEM WINDOWS 7

Perhaps you might learn something by installing a Windows boot utility such as EasyBCD and making sure your Windows boot settings are correct?ДЄnother alternative might be to bring up the Windows 7 Advanced startup options boot menu by pressing F8 immediately after starting a Windows boot from the GRUB menu. (Probably the one on the first partition, OSBoot?) Only one of them would seem to be needed. I am wondering if there is some conflict between your two Windows boot configurations.

Is there any error or status information at all displayed prior to or during this infinite boot loop? Can you tell if it is Linux/GRUB or Windows that is looping?.

There is one for /dev/sda1 (label 'OSDisk') and another for /dev/sda3 (label 'BDEDrive'). The computer simply reboots again and again.'Дoes it make any difference which of the two entries for Windows in your GRUB menu you use to boot into Windows? after booting into Windows 7, grub doesn't load on So you have already booted into the 12.04 installed on partition sda5 and successfully run

You say ' I installed grub manually onto the hard disk (/dev/sda).'.

(Please update/edit your question if you any further info to add.) Some questions just to make sure I am reading your question correctly. The content would be a better match to a comment, but is too long-winded to fit in one. Then if I boot into Windows again, grub breaks again.ДЇull details of the log file which boot-repair produces, showing the partition details, are here: If I boot into the Ubuntu partition using the usb disk, I have found that I can restore grub to working order by using the boot-repair application. Booting into either of them produces the same effect. These are in reality a single Windows installation which uses both partitions. There are two entries for Windows 7 in grub: for /dev/sda1 and /dev/sda3. The screen simply goes black and reboots.

The computer simply reboots again and again, without giving any error. However, after booting into Windows 7, grub doesn't load on the next boot. I then installed grub manually onto the hard disk (/dev/sda) by running 'grub-install /dev/sda'.ДЄfter I do that, I can book into either Ubuntu or Windows 7 from the Grub menu. I was able to boot into the Ubuntu installation by using the usb disk which had grub installed on it. The installation went fine, except that it installed grub onto my usb disk (/dev/sdb) instead of the hard disk (/dev/sda).

GRUB ON USB BREAKS GRUB ON SYSTEM ISO

I have installed Ubuntu 12.04 (daily-live iso from 21.04.12) alongside Windows 7 on an HP EliteBook laptop.

Grub on usb breaks grub on system