Interesting situation with a laptop that I've installed several OS's on,
if I press F12 on boot I get a menu with about half a dozen entries on it >only one of which is still valid. Latest install was Ubuntu MATE when I
told it to delete everything and start afresh but it didn't clear these >entries.
I have tried various combinations of fixmbr and going into the EFI
partition and deleting everything I can find except "Ubuntu" but no joy.
I can treat it as a play machine, there's no data on it, so would
diskpart's "clean" clear everything or do I need a scrubbing brush?
It gets rid of the partition completely and Ubuntu says there is no OS on
the computer but I am still offered half a dozen options if I use F12 to >bring up the boot manager.
Do commands like fix mbr work? Should I boot into DOS (not sure I can >actually) and use fdisk or do I put the NVMe in the dishwasher?
Jeff Gaines wrote:
I am still offered half a dozen options if I use F12 to bring up the boot >>manager.
Are those options coming from the EUFI boot manager, rather than from the >disk's boot sector or partitions?
I am still offered half a dozen options if I use F12 to bring up the boot manager.
Andy Burns wrote:
Jeff Gaines wrote:
I am still offered half a dozen options if I use F12 to bring up
the boot manager.
Are those options coming from the EUFI boot manager, rather than
from the disk's boot sector or partitions?
I'm not sure how I can tell. There are 4 x entries for Ubuntu and one
for Windows boot manager - Ubuntu MATE is installed and I had used
diskpart clean to give it a completely empty drive.
"Jeff Gaines" <jgnewsid@outlook.com> writes:
Andy Burns wrote:
Jeff Gaines wrote:
I am still offered half a dozen options if I use F12 to bring up
the boot manager.
Are those options coming from the EUFI boot manager, rather than
from the disk's boot sector or partitions?
I think that’s a good guess.
I'm not sure how I can tell. There are 4 x entries for Ubuntu and one
for Windows boot manager - Ubuntu MATE is installed and I had used
diskpart clean to give it a completely empty drive.
Under Linux efibootmgr will display the current list and can be used to >modify it.
https://learn.microsoft.com/en-us/windows-hardware/drivers/devtest/overview-of-boot-options-in-efi
looks promising for Windows, although the Itanium reference is showing
its age a bit l-)
Jeff Gaines wrote:
I am still offered half a dozen options if I use F12 to bring up the boot >>manager.
Are those options coming from the EUFI boot manager, rather than from the >disk's boot sector or partitions?
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