Impossible to drop partition table and format EFI partition. Immutable partition table?












0















I am trying to format my computer's entire hard disk, but it does not work due to the EFI partition. I tried the following approaches:




  1. Windows 10 installation - when i am trying to delete a partition, nothing happens. Format works for all disk but EFI


  2. Diskpart - enter to the disc, typed CLEAN, then list partiton (empty) after restart those were still present.


  3. Ubuntu - go to ubuntu, used fdisk (screen attached), after another enter to fdisk the partition was still there. screenshot


  4. Ubuntu - dd if=/dev/null of=/dev/mydisk ... <- after this finished, partition still was present.



What's wrong with the approaches I've tried? Is it possible that partition table is immutable? Thanks










share|improve this question

























  • Are you using Ubuntu from a live session or in a dual boot?

    – GabrielaGarcia
    Jan 16 at 15:44











  • Is mmcblk0 an SD card, or is it internal eMMC memory?

    – grawity
    Jan 16 at 15:46











  • Ubuntu as bootable pendrive. it looks like sd card as disk or not sure, is any of these explain behaviour? Linux UI said that this is sd card

    – H4ds0n
    Jan 16 at 15:54













  • In a live session you should be able to do anything you want provided the no partition oif the said drive is mounted (it shouldn't be unless you clicked on it in the file manager). But there's really no need to delete the EFI partition as it is needed anyway. And in Ubuntu you can use GParted, a GUI tool and with that create a new partition table which will automatically blank the whole drive.

    – GabrielaGarcia
    Jan 17 at 2:41
















0















I am trying to format my computer's entire hard disk, but it does not work due to the EFI partition. I tried the following approaches:




  1. Windows 10 installation - when i am trying to delete a partition, nothing happens. Format works for all disk but EFI


  2. Diskpart - enter to the disc, typed CLEAN, then list partiton (empty) after restart those were still present.


  3. Ubuntu - go to ubuntu, used fdisk (screen attached), after another enter to fdisk the partition was still there. screenshot


  4. Ubuntu - dd if=/dev/null of=/dev/mydisk ... <- after this finished, partition still was present.



What's wrong with the approaches I've tried? Is it possible that partition table is immutable? Thanks










share|improve this question

























  • Are you using Ubuntu from a live session or in a dual boot?

    – GabrielaGarcia
    Jan 16 at 15:44











  • Is mmcblk0 an SD card, or is it internal eMMC memory?

    – grawity
    Jan 16 at 15:46











  • Ubuntu as bootable pendrive. it looks like sd card as disk or not sure, is any of these explain behaviour? Linux UI said that this is sd card

    – H4ds0n
    Jan 16 at 15:54













  • In a live session you should be able to do anything you want provided the no partition oif the said drive is mounted (it shouldn't be unless you clicked on it in the file manager). But there's really no need to delete the EFI partition as it is needed anyway. And in Ubuntu you can use GParted, a GUI tool and with that create a new partition table which will automatically blank the whole drive.

    – GabrielaGarcia
    Jan 17 at 2:41














0












0








0








I am trying to format my computer's entire hard disk, but it does not work due to the EFI partition. I tried the following approaches:




  1. Windows 10 installation - when i am trying to delete a partition, nothing happens. Format works for all disk but EFI


  2. Diskpart - enter to the disc, typed CLEAN, then list partiton (empty) after restart those were still present.


  3. Ubuntu - go to ubuntu, used fdisk (screen attached), after another enter to fdisk the partition was still there. screenshot


  4. Ubuntu - dd if=/dev/null of=/dev/mydisk ... <- after this finished, partition still was present.



What's wrong with the approaches I've tried? Is it possible that partition table is immutable? Thanks










share|improve this question
















I am trying to format my computer's entire hard disk, but it does not work due to the EFI partition. I tried the following approaches:




  1. Windows 10 installation - when i am trying to delete a partition, nothing happens. Format works for all disk but EFI


  2. Diskpart - enter to the disc, typed CLEAN, then list partiton (empty) after restart those were still present.


  3. Ubuntu - go to ubuntu, used fdisk (screen attached), after another enter to fdisk the partition was still there. screenshot


  4. Ubuntu - dd if=/dev/null of=/dev/mydisk ... <- after this finished, partition still was present.



What's wrong with the approaches I've tried? Is it possible that partition table is immutable? Thanks







windows-10 boot bios






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 16 at 17:03









Debra

3,86011121




3,86011121










asked Jan 16 at 15:36









H4ds0nH4ds0n

11




11













  • Are you using Ubuntu from a live session or in a dual boot?

    – GabrielaGarcia
    Jan 16 at 15:44











  • Is mmcblk0 an SD card, or is it internal eMMC memory?

    – grawity
    Jan 16 at 15:46











  • Ubuntu as bootable pendrive. it looks like sd card as disk or not sure, is any of these explain behaviour? Linux UI said that this is sd card

    – H4ds0n
    Jan 16 at 15:54













  • In a live session you should be able to do anything you want provided the no partition oif the said drive is mounted (it shouldn't be unless you clicked on it in the file manager). But there's really no need to delete the EFI partition as it is needed anyway. And in Ubuntu you can use GParted, a GUI tool and with that create a new partition table which will automatically blank the whole drive.

    – GabrielaGarcia
    Jan 17 at 2:41



















  • Are you using Ubuntu from a live session or in a dual boot?

    – GabrielaGarcia
    Jan 16 at 15:44











  • Is mmcblk0 an SD card, or is it internal eMMC memory?

    – grawity
    Jan 16 at 15:46











  • Ubuntu as bootable pendrive. it looks like sd card as disk or not sure, is any of these explain behaviour? Linux UI said that this is sd card

    – H4ds0n
    Jan 16 at 15:54













  • In a live session you should be able to do anything you want provided the no partition oif the said drive is mounted (it shouldn't be unless you clicked on it in the file manager). But there's really no need to delete the EFI partition as it is needed anyway. And in Ubuntu you can use GParted, a GUI tool and with that create a new partition table which will automatically blank the whole drive.

    – GabrielaGarcia
    Jan 17 at 2:41

















Are you using Ubuntu from a live session or in a dual boot?

– GabrielaGarcia
Jan 16 at 15:44





Are you using Ubuntu from a live session or in a dual boot?

– GabrielaGarcia
Jan 16 at 15:44













Is mmcblk0 an SD card, or is it internal eMMC memory?

– grawity
Jan 16 at 15:46





Is mmcblk0 an SD card, or is it internal eMMC memory?

– grawity
Jan 16 at 15:46













Ubuntu as bootable pendrive. it looks like sd card as disk or not sure, is any of these explain behaviour? Linux UI said that this is sd card

– H4ds0n
Jan 16 at 15:54







Ubuntu as bootable pendrive. it looks like sd card as disk or not sure, is any of these explain behaviour? Linux UI said that this is sd card

– H4ds0n
Jan 16 at 15:54















In a live session you should be able to do anything you want provided the no partition oif the said drive is mounted (it shouldn't be unless you clicked on it in the file manager). But there's really no need to delete the EFI partition as it is needed anyway. And in Ubuntu you can use GParted, a GUI tool and with that create a new partition table which will automatically blank the whole drive.

– GabrielaGarcia
Jan 17 at 2:41





In a live session you should be able to do anything you want provided the no partition oif the said drive is mounted (it shouldn't be unless you clicked on it in the file manager). But there's really no need to delete the EFI partition as it is needed anyway. And in Ubuntu you can use GParted, a GUI tool and with that create a new partition table which will automatically blank the whole drive.

– GabrielaGarcia
Jan 17 at 2:41










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