How do I completely destroy grub/ ubuntu bios entry? Conventional methods not working
I have tried the bootrec fixmbr and fixboot method, I've tried the n60 method, I've even tried removing from a Ubuntu live usb. All fixes are temporary. I can boot into Windows 8.1 no problem but in the bios, the ubuntu boot option persists.
I've tried easybcd to remove the option and it just returns after a reboot. It's not an empty option either. If I set the boot option #1 or boot override to ubuntu, it boots into grub and I have to reboot and force windows to boot through the bios.
I have 3 partitions on my harddrive, all windows created.
(Full size screenshot showing disks and partitions here.)
These are the entries for the computer's (only) hard disk shown:
I deleted anything Ubuntu related using OS Uninstaller within a live usb of Ubuntu. How does grub/ubuntu in the bios keep returning? I just want to completely nuke it.
Thank you!
The Ubuntu Boot Option in the BIOS persists no matter what:
(Full size here.)
grub2 uninstall bios
edited Jan 17 '14 at 13:31
Eliah Kagan
82.9k22228369
asked Jan 17 '14 at 12:29
user236851user236851
113
|
show 16 more comments
I have tried the bootrec fixmbr and fixboot method, I've tried the n60 method, I've even tried removing from a Ubuntu live usb. All fixes are temporary. I can boot into Windows 8.1 no problem but in the bios, the ubuntu boot option persists.
I've tried easybcd to remove the option and it just returns after a reboot. It's not an empty option either. If I set the boot option #1 or boot override to ubuntu, it boots into grub and I have to reboot and force windows to boot through the bios.
I have 3 partitions on my harddrive, all windows created.
(Full size screenshot showing disks and partitions here.)
These are the entries for the computer's (only) hard disk shown:
I deleted anything Ubuntu related using OS Uninstaller within a live usb of Ubuntu. How does grub/ubuntu in the bios keep returning? I just want to completely nuke it.
Thank you!
The Ubuntu Boot Option in the BIOS persists no matter what:
(Full size here.)
grub2 uninstall bios
edited Jan 17 '14 at 13:31
Eliah Kagan
82.9k22228369
asked Jan 17 '14 at 12:29
user236851user236851
113
It's unfortunately exactly the same fix I have already tried in many different ways/methods. Thanks anyway. I'm starting to wonder whether anyone has ever had a problem like mine, it's very bizarre.
– user236851
Jan 17 '14 at 12:45
Ok let me clarify. When I say BIOS, I mean BIOS. So in the boot options in my BIOS settings, "ubuntu" is still there. It's still an entry. I can set it to boot option 1 or 2 etc for example. IF I do set "ubuntu" to the boot option 1 or if I use the BIOS boot override and select ubuntu, it boots into grub where I cannot do anything. If I want to access windows, I either need to set windows to boot option 1 in the BIOS, or do the manual override in the BIOS, otherwise, if the first boot option is set to ubuntu, it boots into grub. I've put a link to an image in my post.
– user236851
Jan 17 '14 at 12:55
Added. There isn't a disk partition with Ubuntu as the label. Ubuntu was installed on the same disk. A 250GB drive.
– user236851
Jan 17 '14 at 13:20
How was it installed? Did it have its own separate partition(s) at that time? Also, is it possible that the entry for [ubuntu] is referring to the live USB disk (or CD/DVD) used to install it (and/or remove it). Does the[ubuntu]BIOS entry appear even when you make sure to boot without that drive attached? Note that this drive will still appear (and maybe be, to some degree) bootable if you put other files on it and/or delete stuff from it.
– Eliah Kagan
Jan 17 '14 at 13:26
I suggest usingefibootmgrto delete the entry:sudo apt-get install efibootmgr. Please read itsmanpage before doing anything with it:man efibootmgr.
– henry
Jan 17 '14 at 13:29
|
show 16 more comments
I have tried the bootrec fixmbr and fixboot method, I've tried the n60 method, I've even tried removing from a Ubuntu live usb. All fixes are temporary. I can boot into Windows 8.1 no problem but in the bios, the ubuntu boot option persists.
I've tried easybcd to remove the option and it just returns after a reboot. It's not an empty option either. If I set the boot option #1 or boot override to ubuntu, it boots into grub and I have to reboot and force windows to boot through the bios.
I have 3 partitions on my harddrive, all windows created.
(Full size screenshot showing disks and partitions here.)
These are the entries for the computer's (only) hard disk shown:
I deleted anything Ubuntu related using OS Uninstaller within a live usb of Ubuntu. How does grub/ubuntu in the bios keep returning? I just want to completely nuke it.
Thank you!
The Ubuntu Boot Option in the BIOS persists no matter what:
(Full size here.)
grub2 uninstall bios
edited Jan 17 '14 at 13:31
Eliah Kagan
82.9k22228369
asked Jan 17 '14 at 12:29
user236851user236851
113
I have tried the bootrec fixmbr and fixboot method, I've tried the n60 method, I've even tried removing from a Ubuntu live usb. All fixes are temporary. I can boot into Windows 8.1 no problem but in the bios, the ubuntu boot option persists.
I've tried easybcd to remove the option and it just returns after a reboot. It's not an empty option either. If I set the boot option #1 or boot override to ubuntu, it boots into grub and I have to reboot and force windows to boot through the bios.
I have 3 partitions on my harddrive, all windows created.
(Full size screenshot showing disks and partitions here.)
These are the entries for the computer's (only) hard disk shown:
I deleted anything Ubuntu related using OS Uninstaller within a live usb of Ubuntu. How does grub/ubuntu in the bios keep returning? I just want to completely nuke it.
Thank you!
The Ubuntu Boot Option in the BIOS persists no matter what:
(Full size here.)
grub2 uninstall bios
grub2 uninstall bios
edited Jan 17 '14 at 13:31
Eliah Kagan
82.9k22228369
asked Jan 17 '14 at 12:29
user236851user236851
113
edited Jan 17 '14 at 13:31
Eliah Kagan
82.9k22228369
asked Jan 17 '14 at 12:29
user236851user236851
113
edited Jan 17 '14 at 13:31
Eliah Kagan
82.9k22228369
edited Jan 17 '14 at 13:31
Eliah Kagan
82.9k22228369
edited Jan 17 '14 at 13:31
Eliah Kagan
82.9k22228369
82.9k22228369
asked Jan 17 '14 at 12:29
user236851user236851
113
asked Jan 17 '14 at 12:29
user236851user236851
113
asked Jan 17 '14 at 12:29
user236851user236851
113
113
It's unfortunately exactly the same fix I have already tried in many different ways/methods. Thanks anyway. I'm starting to wonder whether anyone has ever had a problem like mine, it's very bizarre.
– user236851
Jan 17 '14 at 12:45
Ok let me clarify. When I say BIOS, I mean BIOS. So in the boot options in my BIOS settings, "ubuntu" is still there. It's still an entry. I can set it to boot option 1 or 2 etc for example. IF I do set "ubuntu" to the boot option 1 or if I use the BIOS boot override and select ubuntu, it boots into grub where I cannot do anything. If I want to access windows, I either need to set windows to boot option 1 in the BIOS, or do the manual override in the BIOS, otherwise, if the first boot option is set to ubuntu, it boots into grub. I've put a link to an image in my post.
– user236851
Jan 17 '14 at 12:55
Added. There isn't a disk partition with Ubuntu as the label. Ubuntu was installed on the same disk. A 250GB drive.
– user236851
Jan 17 '14 at 13:20
How was it installed? Did it have its own separate partition(s) at that time? Also, is it possible that the entry for [ubuntu] is referring to the live USB disk (or CD/DVD) used to install it (and/or remove it). Does the[ubuntu]BIOS entry appear even when you make sure to boot without that drive attached? Note that this drive will still appear (and maybe be, to some degree) bootable if you put other files on it and/or delete stuff from it.
– Eliah Kagan
Jan 17 '14 at 13:26
I suggest usingefibootmgrto delete the entry:sudo apt-get install efibootmgr. Please read itsmanpage before doing anything with it:man efibootmgr.
– henry
Jan 17 '14 at 13:29
|
show 16 more comments
It's unfortunately exactly the same fix I have already tried in many different ways/methods. Thanks anyway. I'm starting to wonder whether anyone has ever had a problem like mine, it's very bizarre.
– user236851
Jan 17 '14 at 12:45
Ok let me clarify. When I say BIOS, I mean BIOS. So in the boot options in my BIOS settings, "ubuntu" is still there. It's still an entry. I can set it to boot option 1 or 2 etc for example. IF I do set "ubuntu" to the boot option 1 or if I use the BIOS boot override and select ubuntu, it boots into grub where I cannot do anything. If I want to access windows, I either need to set windows to boot option 1 in the BIOS, or do the manual override in the BIOS, otherwise, if the first boot option is set to ubuntu, it boots into grub. I've put a link to an image in my post.
– user236851
Jan 17 '14 at 12:55
Added. There isn't a disk partition with Ubuntu as the label. Ubuntu was installed on the same disk. A 250GB drive.
– user236851
Jan 17 '14 at 13:20
How was it installed? Did it have its own separate partition(s) at that time? Also, is it possible that the entry for [ubuntu] is referring to the live USB disk (or CD/DVD) used to install it (and/or remove it). Does the[ubuntu]BIOS entry appear even when you make sure to boot without that drive attached? Note that this drive will still appear (and maybe be, to some degree) bootable if you put other files on it and/or delete stuff from it.
– Eliah Kagan
Jan 17 '14 at 13:26
I suggest usingefibootmgrto delete the entry:sudo apt-get install efibootmgr. Please read itsmanpage before doing anything with it:man efibootmgr.
– henry
Jan 17 '14 at 13:29
It's unfortunately exactly the same fix I have already tried in many different ways/methods. Thanks anyway. I'm starting to wonder whether anyone has ever had a problem like mine, it's very bizarre.
– user236851
Jan 17 '14 at 12:45
It's unfortunately exactly the same fix I have already tried in many different ways/methods. Thanks anyway. I'm starting to wonder whether anyone has ever had a problem like mine, it's very bizarre.
– user236851
Jan 17 '14 at 12:45
Ok let me clarify. When I say BIOS, I mean BIOS. So in the boot options in my BIOS settings, "ubuntu" is still there. It's still an entry. I can set it to boot option 1 or 2 etc for example. IF I do set "ubuntu" to the boot option 1 or if I use the BIOS boot override and select ubuntu, it boots into grub where I cannot do anything. If I want to access windows, I either need to set windows to boot option 1 in the BIOS, or do the manual override in the BIOS, otherwise, if the first boot option is set to ubuntu, it boots into grub. I've put a link to an image in my post.
– user236851
Jan 17 '14 at 12:55
Ok let me clarify. When I say BIOS, I mean BIOS. So in the boot options in my BIOS settings, "ubuntu" is still there. It's still an entry. I can set it to boot option 1 or 2 etc for example. IF I do set "ubuntu" to the boot option 1 or if I use the BIOS boot override and select ubuntu, it boots into grub where I cannot do anything. If I want to access windows, I either need to set windows to boot option 1 in the BIOS, or do the manual override in the BIOS, otherwise, if the first boot option is set to ubuntu, it boots into grub. I've put a link to an image in my post.
– user236851
Jan 17 '14 at 12:55
Added. There isn't a disk partition with Ubuntu as the label. Ubuntu was installed on the same disk. A 250GB drive.
– user236851
Jan 17 '14 at 13:20
Added. There isn't a disk partition with Ubuntu as the label. Ubuntu was installed on the same disk. A 250GB drive.
– user236851
Jan 17 '14 at 13:20
How was it installed? Did it have its own separate partition(s) at that time? Also, is it possible that the entry for [ubuntu] is referring to the live USB disk (or CD/DVD) used to install it (and/or remove it). Does the
[ubuntu] BIOS entry appear even when you make sure to boot without that drive attached? Note that this drive will still appear (and maybe be, to some degree) bootable if you put other files on it and/or delete stuff from it.– Eliah Kagan
Jan 17 '14 at 13:26
How was it installed? Did it have its own separate partition(s) at that time? Also, is it possible that the entry for [ubuntu] is referring to the live USB disk (or CD/DVD) used to install it (and/or remove it). Does the
[ubuntu] BIOS entry appear even when you make sure to boot without that drive attached? Note that this drive will still appear (and maybe be, to some degree) bootable if you put other files on it and/or delete stuff from it.– Eliah Kagan
Jan 17 '14 at 13:26
I suggest using
efibootmgr to delete the entry: sudo apt-get install efibootmgr. Please read its man page before doing anything with it: man efibootmgr.– henry
Jan 17 '14 at 13:29
I suggest using
efibootmgr to delete the entry: sudo apt-get install efibootmgr. Please read its man page before doing anything with it: man efibootmgr.– henry
Jan 17 '14 at 13:29
|
show 16 more comments
1 Answer
1
active
oldest
votes
edit I made this answer after Eliah suggested I do so, however he has removed his comment in the meantime.
I suggest using efibootmgr to delete the entry:
sudo apt-get install efibootmgr
Please read its man page before doing anything with it:
man efibootmgr
The following excerpts are direct quotes from the man page and give some good clues about the use of efibootmgr:
Displaying the current settings (must be root).
$ sudo efibootmgr
BootCurrent: 0004
BootNext: 0003
BootOrder: 0004,0000,0001,0002,0003
Timeout: 30 seconds
Boot0000* Diskette Drive(device:0)
Boot0001* CD-ROM Drive(device:FF)
Boot0002* Hard Drive(Device:80)/HD(Part1,Sig00112233)
Boot0003* PXE Boot: MAC(00D0B7C15D91)
Boot0004* Linux
This shows:
BootCurrent - the boot entry used to start the currently running system
BootOrder - the boot order as would appear in the boot manager. The boot manager tries to boot the first active entry in this list. If unsuccessful, it tries the next entry, and so on.
BootNext - the boot entry which is scheduled to be run on next boot. This supercedes BootOrder for one boot only, and is deleted by the boot manager after first use. This allows you to change the next boot behavior without changing BootOrder.
Timeout - the time in seconds between when the boot manager appears on the screen until when it automatically chooses the startup value from BootNext or BootOrder.
Five boot entries (0000 - 0004), along with the active/inactive flag (* means active) and the name displayed on the screen.
Following are several examples at the bottom of the man page, with two of them being especially helpful:
3. Changing the Boot Order
Assuming the configuration in Example #1,
efibootmgr -o 3,4
could be called to specify PXE boot first, then Linux boot.
5. Deleting a boot option
Assuming the configuration in Example #1,
efibootmgr -b 4 -B
could be called to delete entry 4 and remove it from the BootOrder.
Conclusion
The number you specify relates to the last number in the 4-digits-figure provided by sudo efibootmgr.
answered Jan 17 '14 at 13:53
henryhenry
1,09851936
add a comment |
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edit I made this answer after Eliah suggested I do so, however he has removed his comment in the meantime.
I suggest using efibootmgr to delete the entry:
sudo apt-get install efibootmgr
Please read its man page before doing anything with it:
man efibootmgr
The following excerpts are direct quotes from the man page and give some good clues about the use of efibootmgr:
Displaying the current settings (must be root).
$ sudo efibootmgr
BootCurrent: 0004
BootNext: 0003
BootOrder: 0004,0000,0001,0002,0003
Timeout: 30 seconds
Boot0000* Diskette Drive(device:0)
Boot0001* CD-ROM Drive(device:FF)
Boot0002* Hard Drive(Device:80)/HD(Part1,Sig00112233)
Boot0003* PXE Boot: MAC(00D0B7C15D91)
Boot0004* Linux
This shows:
BootCurrent - the boot entry used to start the currently running system
BootOrder - the boot order as would appear in the boot manager. The boot manager tries to boot the first active entry in this list. If unsuccessful, it tries the next entry, and so on.
BootNext - the boot entry which is scheduled to be run on next boot. This supercedes BootOrder for one boot only, and is deleted by the boot manager after first use. This allows you to change the next boot behavior without changing BootOrder.
Timeout - the time in seconds between when the boot manager appears on the screen until when it automatically chooses the startup value from BootNext or BootOrder.
Five boot entries (0000 - 0004), along with the active/inactive flag (* means active) and the name displayed on the screen.
Following are several examples at the bottom of the man page, with two of them being especially helpful:
3. Changing the Boot Order
Assuming the configuration in Example #1,
efibootmgr -o 3,4
could be called to specify PXE boot first, then Linux boot.
5. Deleting a boot option
Assuming the configuration in Example #1,
efibootmgr -b 4 -B
could be called to delete entry 4 and remove it from the BootOrder.
Conclusion
The number you specify relates to the last number in the 4-digits-figure provided by sudo efibootmgr.
answered Jan 17 '14 at 13:53
henryhenry
1,09851936
add a comment |
edit I made this answer after Eliah suggested I do so, however he has removed his comment in the meantime.
I suggest using efibootmgr to delete the entry:
sudo apt-get install efibootmgr
Please read its man page before doing anything with it:
man efibootmgr
The following excerpts are direct quotes from the man page and give some good clues about the use of efibootmgr:
Displaying the current settings (must be root).
$ sudo efibootmgr
BootCurrent: 0004
BootNext: 0003
BootOrder: 0004,0000,0001,0002,0003
Timeout: 30 seconds
Boot0000* Diskette Drive(device:0)
Boot0001* CD-ROM Drive(device:FF)
Boot0002* Hard Drive(Device:80)/HD(Part1,Sig00112233)
Boot0003* PXE Boot: MAC(00D0B7C15D91)
Boot0004* Linux
This shows:
BootCurrent - the boot entry used to start the currently running system
BootOrder - the boot order as would appear in the boot manager. The boot manager tries to boot the first active entry in this list. If unsuccessful, it tries the next entry, and so on.
BootNext - the boot entry which is scheduled to be run on next boot. This supercedes BootOrder for one boot only, and is deleted by the boot manager after first use. This allows you to change the next boot behavior without changing BootOrder.
Timeout - the time in seconds between when the boot manager appears on the screen until when it automatically chooses the startup value from BootNext or BootOrder.
Five boot entries (0000 - 0004), along with the active/inactive flag (* means active) and the name displayed on the screen.
Following are several examples at the bottom of the man page, with two of them being especially helpful:
3. Changing the Boot Order
Assuming the configuration in Example #1,
efibootmgr -o 3,4
could be called to specify PXE boot first, then Linux boot.
5. Deleting a boot option
Assuming the configuration in Example #1,
efibootmgr -b 4 -B
could be called to delete entry 4 and remove it from the BootOrder.
Conclusion
The number you specify relates to the last number in the 4-digits-figure provided by sudo efibootmgr.
answered Jan 17 '14 at 13:53
henryhenry
1,09851936
add a comment |
edit I made this answer after Eliah suggested I do so, however he has removed his comment in the meantime.
I suggest using efibootmgr to delete the entry:
sudo apt-get install efibootmgr
Please read its man page before doing anything with it:
man efibootmgr
The following excerpts are direct quotes from the man page and give some good clues about the use of efibootmgr:
Displaying the current settings (must be root).
$ sudo efibootmgr
BootCurrent: 0004
BootNext: 0003
BootOrder: 0004,0000,0001,0002,0003
Timeout: 30 seconds
Boot0000* Diskette Drive(device:0)
Boot0001* CD-ROM Drive(device:FF)
Boot0002* Hard Drive(Device:80)/HD(Part1,Sig00112233)
Boot0003* PXE Boot: MAC(00D0B7C15D91)
Boot0004* Linux
This shows:
BootCurrent - the boot entry used to start the currently running system
BootOrder - the boot order as would appear in the boot manager. The boot manager tries to boot the first active entry in this list. If unsuccessful, it tries the next entry, and so on.
BootNext - the boot entry which is scheduled to be run on next boot. This supercedes BootOrder for one boot only, and is deleted by the boot manager after first use. This allows you to change the next boot behavior without changing BootOrder.
Timeout - the time in seconds between when the boot manager appears on the screen until when it automatically chooses the startup value from BootNext or BootOrder.
Five boot entries (0000 - 0004), along with the active/inactive flag (* means active) and the name displayed on the screen.
Following are several examples at the bottom of the man page, with two of them being especially helpful:
3. Changing the Boot Order
Assuming the configuration in Example #1,
efibootmgr -o 3,4
could be called to specify PXE boot first, then Linux boot.
5. Deleting a boot option
Assuming the configuration in Example #1,
efibootmgr -b 4 -B
could be called to delete entry 4 and remove it from the BootOrder.
Conclusion
The number you specify relates to the last number in the 4-digits-figure provided by sudo efibootmgr.
answered Jan 17 '14 at 13:53
henryhenry
1,09851936
edit I made this answer after Eliah suggested I do so, however he has removed his comment in the meantime.
I suggest using efibootmgr to delete the entry:
sudo apt-get install efibootmgr
Please read its man page before doing anything with it:
man efibootmgr
The following excerpts are direct quotes from the man page and give some good clues about the use of efibootmgr:
Displaying the current settings (must be root).
$ sudo efibootmgr
BootCurrent: 0004
BootNext: 0003
BootOrder: 0004,0000,0001,0002,0003
Timeout: 30 seconds
Boot0000* Diskette Drive(device:0)
Boot0001* CD-ROM Drive(device:FF)
Boot0002* Hard Drive(Device:80)/HD(Part1,Sig00112233)
Boot0003* PXE Boot: MAC(00D0B7C15D91)
Boot0004* Linux
This shows:
BootCurrent - the boot entry used to start the currently running system
BootOrder - the boot order as would appear in the boot manager. The boot manager tries to boot the first active entry in this list. If unsuccessful, it tries the next entry, and so on.
BootNext - the boot entry which is scheduled to be run on next boot. This supercedes BootOrder for one boot only, and is deleted by the boot manager after first use. This allows you to change the next boot behavior without changing BootOrder.
Timeout - the time in seconds between when the boot manager appears on the screen until when it automatically chooses the startup value from BootNext or BootOrder.
Five boot entries (0000 - 0004), along with the active/inactive flag (* means active) and the name displayed on the screen.
Following are several examples at the bottom of the man page, with two of them being especially helpful:
3. Changing the Boot Order
Assuming the configuration in Example #1,
efibootmgr -o 3,4
could be called to specify PXE boot first, then Linux boot.
5. Deleting a boot option
Assuming the configuration in Example #1,
efibootmgr -b 4 -B
could be called to delete entry 4 and remove it from the BootOrder.
Conclusion
The number you specify relates to the last number in the 4-digits-figure provided by sudo efibootmgr.
answered Jan 17 '14 at 13:53
henryhenry
1,09851936
edited Jan 17 '14 at 14:36
answered Jan 17 '14 at 13:53
henryhenry
1,09851936
answered Jan 17 '14 at 13:53
henryhenry
1,09851936
answered Jan 17 '14 at 13:53
henryhenry
1,09851936
1,09851936
add a comment |
add a comment |
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It's unfortunately exactly the same fix I have already tried in many different ways/methods. Thanks anyway. I'm starting to wonder whether anyone has ever had a problem like mine, it's very bizarre.
– user236851
Jan 17 '14 at 12:45
Ok let me clarify. When I say BIOS, I mean BIOS. So in the boot options in my BIOS settings, "ubuntu" is still there. It's still an entry. I can set it to boot option 1 or 2 etc for example. IF I do set "ubuntu" to the boot option 1 or if I use the BIOS boot override and select ubuntu, it boots into grub where I cannot do anything. If I want to access windows, I either need to set windows to boot option 1 in the BIOS, or do the manual override in the BIOS, otherwise, if the first boot option is set to ubuntu, it boots into grub. I've put a link to an image in my post.
– user236851
Jan 17 '14 at 12:55
Added. There isn't a disk partition with Ubuntu as the label. Ubuntu was installed on the same disk. A 250GB drive.
– user236851
Jan 17 '14 at 13:20
How was it installed? Did it have its own separate partition(s) at that time? Also, is it possible that the entry for [ubuntu] is referring to the live USB disk (or CD/DVD) used to install it (and/or remove it). Does the
[ubuntu]BIOS entry appear even when you make sure to boot without that drive attached? Note that this drive will still appear (and maybe be, to some degree) bootable if you put other files on it and/or delete stuff from it.– Eliah Kagan
Jan 17 '14 at 13:26
I suggest using
efibootmgrto delete the entry:sudo apt-get install efibootmgr. Please read itsmanpage before doing anything with it:man efibootmgr.– henry
Jan 17 '14 at 13:29