andrew198
February 11th, 2015, 02:27 PM
This probably has been answered before, but I cannot find a thread specific to my problem. If so, I appolgise.
I have an old laptop (Advent 5712) on which is installed Windows 7. I want to install Ubuntu 12.04LTS on a USB hard drive, which can be removed at any time without the Windows MBR having been overwritten (to enable me to boot into Windows without external HDD attached).
I have created bootable flash drive (memory stick) with Ubuntu on it. That's OK, it works.
I format the USB HDD in Windows to NTFS (to get rid of any residual remnants of Linux partitions previously installed on there).
I set the BIOS bootup order to USB HDD, then internal HDD, then USB flash drive. This will ensure on re-boot it will not boot to USB flash drive as a first choice.
On boot up, I can tell the system what device to boot to first (ie. over-riding the normal boot order): I select USB flash drive.
I do an Ubuntu installation on the USB HDD following the instructions as per:
http://www.linuxbsdos.com/2013/10/23/how-to-install-ubuntu-13-10-on-an-external-hard-drive/
The "Device for boot loader installation" I set to /dev/sdb (my USB HDD).
The only diference was I made the swap partition logical.
So far, all goes well. Everything installs.
Upon restarting after installation, lots of information flashes on the screen (too quick to read), then it reboots straight into Windows.
If I then remove the internal HDD from the BIOS boot menu, and remove the USB flash drive (so it can only boot from external HDD), it says no Operating System found.
So it cannot boot from the Ubuntu HDD. Examining the Ubuntu HDD using live Ubuntu on flash drive, the partitions are there.
I've also tried to create Ubuntu USB HDD with an initial /boot partition (sdb1) and putting the bootloader installation into there. It still does not work.
Please, where am I going wrong?
My next stage would be to shrink the Windows partition on the internal HDD, freeing up space for an extra partition and installing Ubuntu on there as a dual boot PC. But I want to try out Ubuntu on USB HDD first.
Many thanks and extremely frustrated :) .
I have an old laptop (Advent 5712) on which is installed Windows 7. I want to install Ubuntu 12.04LTS on a USB hard drive, which can be removed at any time without the Windows MBR having been overwritten (to enable me to boot into Windows without external HDD attached).
I have created bootable flash drive (memory stick) with Ubuntu on it. That's OK, it works.
I format the USB HDD in Windows to NTFS (to get rid of any residual remnants of Linux partitions previously installed on there).
I set the BIOS bootup order to USB HDD, then internal HDD, then USB flash drive. This will ensure on re-boot it will not boot to USB flash drive as a first choice.
On boot up, I can tell the system what device to boot to first (ie. over-riding the normal boot order): I select USB flash drive.
I do an Ubuntu installation on the USB HDD following the instructions as per:
http://www.linuxbsdos.com/2013/10/23/how-to-install-ubuntu-13-10-on-an-external-hard-drive/
The "Device for boot loader installation" I set to /dev/sdb (my USB HDD).
The only diference was I made the swap partition logical.
So far, all goes well. Everything installs.
Upon restarting after installation, lots of information flashes on the screen (too quick to read), then it reboots straight into Windows.
If I then remove the internal HDD from the BIOS boot menu, and remove the USB flash drive (so it can only boot from external HDD), it says no Operating System found.
So it cannot boot from the Ubuntu HDD. Examining the Ubuntu HDD using live Ubuntu on flash drive, the partitions are there.
I've also tried to create Ubuntu USB HDD with an initial /boot partition (sdb1) and putting the bootloader installation into there. It still does not work.
Please, where am I going wrong?
My next stage would be to shrink the Windows partition on the internal HDD, freeing up space for an extra partition and installing Ubuntu on there as a dual boot PC. But I want to try out Ubuntu on USB HDD first.
Many thanks and extremely frustrated :) .