Fails to boot Ubuntu 18.04 - attemp to read or write outside of 'hd0'












0














I am having issues booting and end up in a grub rescue shell.



error: attempt to read or write outside of disk 'hd0'.

Entering rescue mode...

grub rescue>


Searching around the web, i have found some commands to get a bit more information about my system.
Running sudo fdisk -l gives



Disk /dev/loop0: 1.8 GiB, 1864450048 bytes, 3641504 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes





Disk /dev/loop1: 86.9 MiB, 91099136 bytes, 177928 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes





Disk /dev/loop2: 34.7 MiB, 36323328 bytes, 70944 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes





Disk /dev/loop3: 140.9 MiB, 147722240 bytes, 288520 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes





Disk /dev/loop4: 2.3 MiB, 2433024 bytes, 4752 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes





Disk /dev/loop5: 13 MiB, 13619200 bytes, 26600 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes





Disk /dev/loop6: 14.5 MiB, 15196160 bytes, 29680 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes





Disk /dev/loop7: 3.7 MiB, 3887104 bytes, 7592 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes





Disk /dev/sda: 232.9 GiB, 250059350016 bytes, 488397168 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disklabel type: dos

Disk identifier: 0x99811f5b



Device     Boot Start       End   Sectors   Size Id Type

/dev/sda1  *     2048 488396799 488394752 232.9G 8e Linux LVM





Disk /dev/sdb: 14.5 GiB, 15524167680 bytes, 30320640 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disklabel type: dos

Disk identifier: 0x32234161



Device     Boot Start      End  Sectors  Size Id Type

/dev/sdb1  *     8064 30320639 30312576 14.5G  c W95 FAT32 (LBA)









Disk /dev/mapper/ubuntu--vg-root: 231.9 GiB, 249028411392 bytes, 486383616 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes





Disk /dev/mapper/ubuntu--vg-swap_1: 980 MiB, 1027604480 bytes, 2007040 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes


From which we can see my main drive is /dev/sda and the root and swap use lvm.
The /dev/sda and /dev/sda1 have the boot flag. It is pretty much a standard unbuntu installation. The /dev/sdb is the usb drive i am using right now to run my computer.



To me, all seems fine and i am out of idea on how to get my desktop back. How should one approch this problem to solve it?



Thanks,






linux ubuntu lvm grub






share







New contributor




Jonathan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

























    0














    I am having issues booting and end up in a grub rescue shell.



    error: attempt to read or write outside of disk 'hd0'.
    
Entering rescue mode...
    
grub rescue>


    Searching around the web, i have found some commands to get a bit more information about my system.
    Running sudo fdisk -l gives



    Disk /dev/loop0: 1.8 GiB, 1864450048 bytes, 3641504 sectors
    
Units: sectors of 1 * 512 = 512 bytes
    
Sector size (logical/physical): 512 bytes / 512 bytes
    
I/O size (minimum/optimal): 512 bytes / 512 bytes
    

    

    
Disk /dev/loop1: 86.9 MiB, 91099136 bytes, 177928 sectors
    
Units: sectors of 1 * 512 = 512 bytes
    
Sector size (logical/physical): 512 bytes / 512 bytes
    
I/O size (minimum/optimal): 512 bytes / 512 bytes
    

    

    
Disk /dev/loop2: 34.7 MiB, 36323328 bytes, 70944 sectors
    
Units: sectors of 1 * 512 = 512 bytes
    
Sector size (logical/physical): 512 bytes / 512 bytes
    
I/O size (minimum/optimal): 512 bytes / 512 bytes
    

    

    
Disk /dev/loop3: 140.9 MiB, 147722240 bytes, 288520 sectors
    
Units: sectors of 1 * 512 = 512 bytes
    
Sector size (logical/physical): 512 bytes / 512 bytes
    
I/O size (minimum/optimal): 512 bytes / 512 bytes
    

    

    
Disk /dev/loop4: 2.3 MiB, 2433024 bytes, 4752 sectors
    
Units: sectors of 1 * 512 = 512 bytes
    
Sector size (logical/physical): 512 bytes / 512 bytes
    
I/O size (minimum/optimal): 512 bytes / 512 bytes
    

    

    
Disk /dev/loop5: 13 MiB, 13619200 bytes, 26600 sectors
    
Units: sectors of 1 * 512 = 512 bytes
    
Sector size (logical/physical): 512 bytes / 512 bytes
    
I/O size (minimum/optimal): 512 bytes / 512 bytes
    

    

    
Disk /dev/loop6: 14.5 MiB, 15196160 bytes, 29680 sectors
    
Units: sectors of 1 * 512 = 512 bytes
    
Sector size (logical/physical): 512 bytes / 512 bytes
    
I/O size (minimum/optimal): 512 bytes / 512 bytes
    

    

    
Disk /dev/loop7: 3.7 MiB, 3887104 bytes, 7592 sectors
    
Units: sectors of 1 * 512 = 512 bytes
    
Sector size (logical/physical): 512 bytes / 512 bytes
    
I/O size (minimum/optimal): 512 bytes / 512 bytes
    

    

    
Disk /dev/sda: 232.9 GiB, 250059350016 bytes, 488397168 sectors
    
Units: sectors of 1 * 512 = 512 bytes
    
Sector size (logical/physical): 512 bytes / 512 bytes
    
I/O size (minimum/optimal): 512 bytes / 512 bytes
    
Disklabel type: dos
    
Disk identifier: 0x99811f5b
    

    
Device     Boot Start       End   Sectors   Size Id Type
    
/dev/sda1  *     2048 488396799 488394752 232.9G 8e Linux LVM
    

    

    
Disk /dev/sdb: 14.5 GiB, 15524167680 bytes, 30320640 sectors
    
Units: sectors of 1 * 512 = 512 bytes
    
Sector size (logical/physical): 512 bytes / 512 bytes
    
I/O size (minimum/optimal): 512 bytes / 512 bytes
    
Disklabel type: dos
    
Disk identifier: 0x32234161
    

    
Device     Boot Start      End  Sectors  Size Id Type
    
/dev/sdb1  *     8064 30320639 30312576 14.5G  c W95 FAT32 (LBA)
    

    

    

    

    
Disk /dev/mapper/ubuntu--vg-root: 231.9 GiB, 249028411392 bytes, 486383616 sectors
    
Units: sectors of 1 * 512 = 512 bytes
    
Sector size (logical/physical): 512 bytes / 512 bytes
    
I/O size (minimum/optimal): 512 bytes / 512 bytes
    

    

    
Disk /dev/mapper/ubuntu--vg-swap_1: 980 MiB, 1027604480 bytes, 2007040 sectors
    
Units: sectors of 1 * 512 = 512 bytes
    
Sector size (logical/physical): 512 bytes / 512 bytes
    
I/O size (minimum/optimal): 512 bytes / 512 bytes


    From which we can see my main drive is /dev/sda and the root and swap use lvm.
    The /dev/sda and /dev/sda1 have the boot flag. It is pretty much a standard unbuntu installation. The /dev/sdb is the usb drive i am using right now to run my computer.



    To me, all seems fine and i am out of idea on how to get my desktop back. How should one approch this problem to solve it?



    Thanks,






    linux ubuntu lvm grub






    share







    New contributor




    Jonathan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      0












      0








      0







      I am having issues booting and end up in a grub rescue shell.



      error: attempt to read or write outside of disk 'hd0'.
      
Entering rescue mode...
      
grub rescue>


      Searching around the web, i have found some commands to get a bit more information about my system.
      Running sudo fdisk -l gives



      Disk /dev/loop0: 1.8 GiB, 1864450048 bytes, 3641504 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop1: 86.9 MiB, 91099136 bytes, 177928 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop2: 34.7 MiB, 36323328 bytes, 70944 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop3: 140.9 MiB, 147722240 bytes, 288520 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop4: 2.3 MiB, 2433024 bytes, 4752 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop5: 13 MiB, 13619200 bytes, 26600 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop6: 14.5 MiB, 15196160 bytes, 29680 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop7: 3.7 MiB, 3887104 bytes, 7592 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/sda: 232.9 GiB, 250059350016 bytes, 488397168 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      
Disklabel type: dos
      
Disk identifier: 0x99811f5b
      

      
Device     Boot Start       End   Sectors   Size Id Type
      
/dev/sda1  *     2048 488396799 488394752 232.9G 8e Linux LVM
      

      

      
Disk /dev/sdb: 14.5 GiB, 15524167680 bytes, 30320640 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      
Disklabel type: dos
      
Disk identifier: 0x32234161
      

      
Device     Boot Start      End  Sectors  Size Id Type
      
/dev/sdb1  *     8064 30320639 30312576 14.5G  c W95 FAT32 (LBA)
      

      

      

      

      
Disk /dev/mapper/ubuntu--vg-root: 231.9 GiB, 249028411392 bytes, 486383616 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/mapper/ubuntu--vg-swap_1: 980 MiB, 1027604480 bytes, 2007040 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes


      From which we can see my main drive is /dev/sda and the root and swap use lvm.
      The /dev/sda and /dev/sda1 have the boot flag. It is pretty much a standard unbuntu installation. The /dev/sdb is the usb drive i am using right now to run my computer.



      To me, all seems fine and i am out of idea on how to get my desktop back. How should one approch this problem to solve it?



      Thanks,






      linux ubuntu lvm grub






      share







      New contributor




      Jonathan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I am having issues booting and end up in a grub rescue shell.



      error: attempt to read or write outside of disk 'hd0'.
      
Entering rescue mode...
      
grub rescue>


      Searching around the web, i have found some commands to get a bit more information about my system.
      Running sudo fdisk -l gives



      Disk /dev/loop0: 1.8 GiB, 1864450048 bytes, 3641504 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop1: 86.9 MiB, 91099136 bytes, 177928 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop2: 34.7 MiB, 36323328 bytes, 70944 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop3: 140.9 MiB, 147722240 bytes, 288520 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop4: 2.3 MiB, 2433024 bytes, 4752 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop5: 13 MiB, 13619200 bytes, 26600 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop6: 14.5 MiB, 15196160 bytes, 29680 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/loop7: 3.7 MiB, 3887104 bytes, 7592 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/sda: 232.9 GiB, 250059350016 bytes, 488397168 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      
Disklabel type: dos
      
Disk identifier: 0x99811f5b
      

      
Device     Boot Start       End   Sectors   Size Id Type
      
/dev/sda1  *     2048 488396799 488394752 232.9G 8e Linux LVM
      

      

      
Disk /dev/sdb: 14.5 GiB, 15524167680 bytes, 30320640 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      
Disklabel type: dos
      
Disk identifier: 0x32234161
      

      
Device     Boot Start      End  Sectors  Size Id Type
      
/dev/sdb1  *     8064 30320639 30312576 14.5G  c W95 FAT32 (LBA)
      

      

      

      

      
Disk /dev/mapper/ubuntu--vg-root: 231.9 GiB, 249028411392 bytes, 486383616 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes
      

      

      
Disk /dev/mapper/ubuntu--vg-swap_1: 980 MiB, 1027604480 bytes, 2007040 sectors
      
Units: sectors of 1 * 512 = 512 bytes
      
Sector size (logical/physical): 512 bytes / 512 bytes
      
I/O size (minimum/optimal): 512 bytes / 512 bytes


      From which we can see my main drive is /dev/sda and the root and swap use lvm.
      The /dev/sda and /dev/sda1 have the boot flag. It is pretty much a standard unbuntu installation. The /dev/sdb is the usb drive i am using right now to run my computer.



      To me, all seems fine and i am out of idea on how to get my desktop back. How should one approch this problem to solve it?



      Thanks,






      linux ubuntu lvm grub




      linux ubuntu lvm grub





      share







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      Jonathan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










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