• Clearing Off GRUB

    From Jeff Gaines@21:1/5 to All on Thu Dec 1 17:31:22 2022
    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?

    --
    Jeff Gaines Dorset UK
    There are 3 types of people in this world. Those who can count, and those
    who can't.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jeff Gaines@21:1/5 to Gaines on Fri Dec 2 09:45:25 2022
    On 01/12/2022 in message <xn0nq3gfe1rnaj600i@news.individual.net> Jeff
    Gaines wrote:


    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?

    No it doesn't!

    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 Dorset UK
    Every day is a good day for chicken, unless you're a chicken.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jeff Gaines@21:1/5 to Gaines on Fri Dec 2 11:22:28 2022
    On 02/12/2022 in message <xn0nq4ip82qfxv100j@news.individual.net> Jeff
    Gaines wrote:

    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?

    No they don't it seems, having run "clean" in diskpart then bootrec
    /fixmbr and bootrec /fixboot I am still offered half a dozen options when
    I press F12 for the boot menu. I even downloaded a GRUB2 iso that's
    supposed to clean it but the options I found by Googling don't actually
    exist on its menu.

    I am at a complete loss now, any suggestions.

    NB - it's a really good idea to make sure you've selected the correct
    drive when using the commands I mentioned earlier. Anyway, I have
    reformatted my Ventoy drive, reinstalled Ventoy and copied all the images
    over again :-(

    --
    Jeff Gaines Dorset UK
    Remember, the Flat Earth Society has members all around the globe.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jeff Gaines@21:1/5 to All on Fri Dec 2 13:12:47 2022
    On 02/12/2022 in message <juu9nsF1ofeU1@mid.individual.net> 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 Dorset UK
    Tell me what you need, and I'll tell you how to get along without it.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Andy Burns@21:1/5 to Jeff Gaines on Fri Dec 2 12:35:08 2022
    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?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Richard Kettlewell@21:1/5 to Jeff Gaines on Fri Dec 2 17:03:26 2022
    "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-)

    --
    http://www.greenend.org.uk/rjk/

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jeff Gaines@21:1/5 to Kettlewell on Fri Dec 2 18:18:02 2022
    On 02/12/2022 in message <wwvfsdx91r5.fsf@LkoBDZeT.terraraq.uk> Richard Kettlewell wrote:

    "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-)

    Many thanks Richard :-)

    I will look in detail tomorrow. Since my last post I have tried to load
    Win 98 so I could use fdisk, that was quite amusing as it died when it
    realised it was looking at a 500 GB NVMe drive! I used diskpart to clean
    the disk again, added an mbr primary partition and installed Win 10 on
    that. I then installed Mini Tool Partition Wizard and looked at the drive
    and there's no hidden partitions.

    --
    Jeff Gaines Dorset UK
    The facts, although interesting, are irrelevant

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jeff Gaines@21:1/5 to All on Fri Dec 2 21:48:08 2022
    On 02/12/2022 in message <juu9nsF1ofeU1@mid.individual.net> 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?

    Found them Andy, thanks for making that point :-)

    In the BIOS there is a menu headed "Boot Options" then several sub items.
    What I didn't realise was that hitting "Enter" while on "Boot Menu" opens
    up a list and lo and behold there they all are!

    Presumably if you install an OS using UEFI/Secure Boot or similar an entry
    is added there but apparently never deleted?

    Anyway, I have deleted the extra entries, something new to learn every
    day, thanks again :-)

    --
    Jeff Gaines Dorset UK
    There are 3 types of people in this world. Those who can count, and those
    who can't.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)