Partition table damaged after windows update
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Yesterday I've let windows 10 update but on restart grub was showing "unknown filesystem". After trying all solutions I've found on the web for that issue, I've used Ubuntu Live to fix that and now only Windows boot shows.
Having experienced similar problems before, I used Ubuntu live usb once again and for hours tried desperately to restore Ubuntu. I've tried all solutions I've found on the internet and moved no further...
Here are the coordinates of the issue:
fdisk -l
Disk /dev/sda: 223.6 GiB, 240057409536 bytes, 468862128 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: 0x76936d13
Device Boot Start End Sectors Size Id Type /dev/sda1
* 2048 206847 204800 100M 7 HPFS/NTFS/exFAT /dev/sda2 206848 385979729 385772882 184G 7 HPFS/NTFS/exFAT /dev/sda3
385980416 386936831 956416 467M 27 Hidden NTFS WinRE /dev/sda4
386940926 468860927 81920002 39.1G 5 Extended /dev/sda5
460462080 468860927 8398848 4G 82 Linux swap / Solaris
grub-install /dev/sda4
Installing for i386-pc platform. grub-install: error: failed to get
canonical path of `/cow'.
mount /dev/sda4 /mnt
mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sda4,
missing codepage or helper program, or other error.
testdisk
Disk /dev/sda - 240 GB / 223 GiB - CHS 29185 255 63
Partition Start End Size in sectors
* HPFS - NTFS 0 32 33 12 223 19 204800
P HPFS - NTFS 12 223 20 24026 43 17 385773568
P HPFS - NTFS 24026 43 18 24085 179 30 956416
L Linux 24085 211 63 28662 79 25 73521152
L Linux Swap 28662 111 58 29185 61 60 8398848
If I'm trying to set Linux partition as primary bootable it says "Structure bad".
How can I make my ubuntu work once again or at least recover my projects from that linux partition?
data-recovery ext4 mbr
edited May 16 at 3:43
stumblebee
2,3083922
asked May 15 at 18:41
Lucian Gabriel Popescu
62
add a comment |Â
up vote
1
down vote
favorite
1
Yesterday I've let windows 10 update but on restart grub was showing "unknown filesystem". After trying all solutions I've found on the web for that issue, I've used Ubuntu Live to fix that and now only Windows boot shows.
Having experienced similar problems before, I used Ubuntu live usb once again and for hours tried desperately to restore Ubuntu. I've tried all solutions I've found on the internet and moved no further...
Here are the coordinates of the issue:
fdisk -l
Disk /dev/sda: 223.6 GiB, 240057409536 bytes, 468862128 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: 0x76936d13
Device Boot Start End Sectors Size Id Type /dev/sda1
* 2048 206847 204800 100M 7 HPFS/NTFS/exFAT /dev/sda2 206848 385979729 385772882 184G 7 HPFS/NTFS/exFAT /dev/sda3
385980416 386936831 956416 467M 27 Hidden NTFS WinRE /dev/sda4
386940926 468860927 81920002 39.1G 5 Extended /dev/sda5
460462080 468860927 8398848 4G 82 Linux swap / Solaris
grub-install /dev/sda4
Installing for i386-pc platform. grub-install: error: failed to get
canonical path of `/cow'.
mount /dev/sda4 /mnt
mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sda4,
missing codepage or helper program, or other error.
testdisk
Disk /dev/sda - 240 GB / 223 GiB - CHS 29185 255 63
Partition Start End Size in sectors
* HPFS - NTFS 0 32 33 12 223 19 204800
P HPFS - NTFS 12 223 20 24026 43 17 385773568
P HPFS - NTFS 24026 43 18 24085 179 30 956416
L Linux 24085 211 63 28662 79 25 73521152
L Linux Swap 28662 111 58 29185 61 60 8398848
If I'm trying to set Linux partition as primary bootable it says "Structure bad".
How can I make my ubuntu work once again or at least recover my projects from that linux partition?
data-recovery ext4 mbr
edited May 16 at 3:43
stumblebee
2,3083922
asked May 15 at 18:41
Lucian Gabriel Popescu
62
Duplicate of these. Windows updates partition table and does not include your logical Linux partition. You can use parted rescue or testdisk from Ubuntu live installer. askubuntu.com/questions/654386/… & askubuntu.com/questions/944371/… Your sda4 is the extended partition, Your missing partition should be inside it.
– oldfred
May 15 at 19:03
@olfred Unfortunately none of the fixes suggested worked.
– Lucian Gabriel Popescu
May 18 at 18:39
You cannot, nor should not make your Linux partition primary bootable. Windows must the the bootable partition (*). And Linux does not care if primary or logical. You may also need repairs using fsck. Try these commands on your LInux partition. askubuntu.com/questions/642504/…
– oldfred
May 18 at 19:05
Still didn't work: e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda4 Could this be a zero-length partition?
– Lucian Gabriel Popescu
May 19 at 4:31
Your fdisk shows extended starting at 386940926, and swap starting at 460462080 or large gap. Your testdisk shows the Linux partition in that gap, did you not select to save that? You do not install grub to a partition, only to a drive like sda. And /cow means you were trying to install grub to installer /cow is copy on write or the installer.
– oldfred
May 19 at 14:52
add a comment |Â
up vote
1
down vote
favorite
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up vote
1
down vote
favorite
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1
Yesterday I've let windows 10 update but on restart grub was showing "unknown filesystem". After trying all solutions I've found on the web for that issue, I've used Ubuntu Live to fix that and now only Windows boot shows.
Having experienced similar problems before, I used Ubuntu live usb once again and for hours tried desperately to restore Ubuntu. I've tried all solutions I've found on the internet and moved no further...
Here are the coordinates of the issue:
fdisk -l
Disk /dev/sda: 223.6 GiB, 240057409536 bytes, 468862128 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: 0x76936d13
Device Boot Start End Sectors Size Id Type /dev/sda1
* 2048 206847 204800 100M 7 HPFS/NTFS/exFAT /dev/sda2 206848 385979729 385772882 184G 7 HPFS/NTFS/exFAT /dev/sda3
385980416 386936831 956416 467M 27 Hidden NTFS WinRE /dev/sda4
386940926 468860927 81920002 39.1G 5 Extended /dev/sda5
460462080 468860927 8398848 4G 82 Linux swap / Solaris
grub-install /dev/sda4
Installing for i386-pc platform. grub-install: error: failed to get
canonical path of `/cow'.
mount /dev/sda4 /mnt
mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sda4,
missing codepage or helper program, or other error.
testdisk
Disk /dev/sda - 240 GB / 223 GiB - CHS 29185 255 63
Partition Start End Size in sectors
* HPFS - NTFS 0 32 33 12 223 19 204800
P HPFS - NTFS 12 223 20 24026 43 17 385773568
P HPFS - NTFS 24026 43 18 24085 179 30 956416
L Linux 24085 211 63 28662 79 25 73521152
L Linux Swap 28662 111 58 29185 61 60 8398848
If I'm trying to set Linux partition as primary bootable it says "Structure bad".
How can I make my ubuntu work once again or at least recover my projects from that linux partition?
data-recovery ext4 mbr
edited May 16 at 3:43
stumblebee
2,3083922
asked May 15 at 18:41
Lucian Gabriel Popescu
62
Yesterday I've let windows 10 update but on restart grub was showing "unknown filesystem". After trying all solutions I've found on the web for that issue, I've used Ubuntu Live to fix that and now only Windows boot shows.
Having experienced similar problems before, I used Ubuntu live usb once again and for hours tried desperately to restore Ubuntu. I've tried all solutions I've found on the internet and moved no further...
Here are the coordinates of the issue:
fdisk -l
Disk /dev/sda: 223.6 GiB, 240057409536 bytes, 468862128 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: 0x76936d13
Device Boot Start End Sectors Size Id Type /dev/sda1
* 2048 206847 204800 100M 7 HPFS/NTFS/exFAT /dev/sda2 206848 385979729 385772882 184G 7 HPFS/NTFS/exFAT /dev/sda3
385980416 386936831 956416 467M 27 Hidden NTFS WinRE /dev/sda4
386940926 468860927 81920002 39.1G 5 Extended /dev/sda5
460462080 468860927 8398848 4G 82 Linux swap / Solaris
grub-install /dev/sda4
Installing for i386-pc platform. grub-install: error: failed to get
canonical path of `/cow'.
mount /dev/sda4 /mnt
mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sda4,
missing codepage or helper program, or other error.
testdisk
Disk /dev/sda - 240 GB / 223 GiB - CHS 29185 255 63
Partition Start End Size in sectors
* HPFS - NTFS 0 32 33 12 223 19 204800
P HPFS - NTFS 12 223 20 24026 43 17 385773568
P HPFS - NTFS 24026 43 18 24085 179 30 956416
L Linux 24085 211 63 28662 79 25 73521152
L Linux Swap 28662 111 58 29185 61 60 8398848
If I'm trying to set Linux partition as primary bootable it says "Structure bad".
How can I make my ubuntu work once again or at least recover my projects from that linux partition?
data-recovery ext4 mbr
edited May 16 at 3:43
stumblebee
2,3083922
asked May 15 at 18:41
Lucian Gabriel Popescu
62
edited May 16 at 3:43
stumblebee
2,3083922
edited May 16 at 3:43
stumblebee
2,3083922
edited May 16 at 3:43
stumblebee
2,3083922
2,3083922
asked May 15 at 18:41
Lucian Gabriel Popescu
62
asked May 15 at 18:41
Lucian Gabriel Popescu
62
asked May 15 at 18:41
Lucian Gabriel Popescu
62
62
Duplicate of these. Windows updates partition table and does not include your logical Linux partition. You can use parted rescue or testdisk from Ubuntu live installer. askubuntu.com/questions/654386/… & askubuntu.com/questions/944371/… Your sda4 is the extended partition, Your missing partition should be inside it.
– oldfred
May 15 at 19:03
@olfred Unfortunately none of the fixes suggested worked.
– Lucian Gabriel Popescu
May 18 at 18:39
You cannot, nor should not make your Linux partition primary bootable. Windows must the the bootable partition (*). And Linux does not care if primary or logical. You may also need repairs using fsck. Try these commands on your LInux partition. askubuntu.com/questions/642504/…
– oldfred
May 18 at 19:05
Still didn't work: e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda4 Could this be a zero-length partition?
– Lucian Gabriel Popescu
May 19 at 4:31
Your fdisk shows extended starting at 386940926, and swap starting at 460462080 or large gap. Your testdisk shows the Linux partition in that gap, did you not select to save that? You do not install grub to a partition, only to a drive like sda. And /cow means you were trying to install grub to installer /cow is copy on write or the installer.
– oldfred
May 19 at 14:52
add a comment |Â
Duplicate of these. Windows updates partition table and does not include your logical Linux partition. You can use parted rescue or testdisk from Ubuntu live installer. askubuntu.com/questions/654386/… & askubuntu.com/questions/944371/… Your sda4 is the extended partition, Your missing partition should be inside it.
– oldfred
May 15 at 19:03
@olfred Unfortunately none of the fixes suggested worked.
– Lucian Gabriel Popescu
May 18 at 18:39
You cannot, nor should not make your Linux partition primary bootable. Windows must the the bootable partition (*). And Linux does not care if primary or logical. You may also need repairs using fsck. Try these commands on your LInux partition. askubuntu.com/questions/642504/…
– oldfred
May 18 at 19:05
Still didn't work: e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda4 Could this be a zero-length partition?
– Lucian Gabriel Popescu
May 19 at 4:31
Your fdisk shows extended starting at 386940926, and swap starting at 460462080 or large gap. Your testdisk shows the Linux partition in that gap, did you not select to save that? You do not install grub to a partition, only to a drive like sda. And /cow means you were trying to install grub to installer /cow is copy on write or the installer.
– oldfred
May 19 at 14:52
Duplicate of these. Windows updates partition table and does not include your logical Linux partition. You can use parted rescue or testdisk from Ubuntu live installer. askubuntu.com/questions/654386/… & askubuntu.com/questions/944371/… Your sda4 is the extended partition, Your missing partition should be inside it.
– oldfred
May 15 at 19:03
Duplicate of these. Windows updates partition table and does not include your logical Linux partition. You can use parted rescue or testdisk from Ubuntu live installer. askubuntu.com/questions/654386/… & askubuntu.com/questions/944371/… Your sda4 is the extended partition, Your missing partition should be inside it.
– oldfred
May 15 at 19:03
@olfred Unfortunately none of the fixes suggested worked.
– Lucian Gabriel Popescu
May 18 at 18:39
@olfred Unfortunately none of the fixes suggested worked.
– Lucian Gabriel Popescu
May 18 at 18:39
You cannot, nor should not make your Linux partition primary bootable. Windows must the the bootable partition (*). And Linux does not care if primary or logical. You may also need repairs using fsck. Try these commands on your LInux partition. askubuntu.com/questions/642504/…
– oldfred
May 18 at 19:05
You cannot, nor should not make your Linux partition primary bootable. Windows must the the bootable partition (*). And Linux does not care if primary or logical. You may also need repairs using fsck. Try these commands on your LInux partition. askubuntu.com/questions/642504/…
– oldfred
May 18 at 19:05
Still didn't work: e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda4 Could this be a zero-length partition?
– Lucian Gabriel Popescu
May 19 at 4:31
Still didn't work: e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda4 Could this be a zero-length partition?
– Lucian Gabriel Popescu
May 19 at 4:31
Your fdisk shows extended starting at 386940926, and swap starting at 460462080 or large gap. Your testdisk shows the Linux partition in that gap, did you not select to save that? You do not install grub to a partition, only to a drive like sda. And /cow means you were trying to install grub to installer /cow is copy on write or the installer.
– oldfred
May 19 at 14:52
Your fdisk shows extended starting at 386940926, and swap starting at 460462080 or large gap. Your testdisk shows the Linux partition in that gap, did you not select to save that? You do not install grub to a partition, only to a drive like sda. And /cow means you were trying to install grub to installer /cow is copy on write or the installer.
– oldfred
May 19 at 14:52
add a comment |Â
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Duplicate of these. Windows updates partition table and does not include your logical Linux partition. You can use parted rescue or testdisk from Ubuntu live installer. askubuntu.com/questions/654386/… & askubuntu.com/questions/944371/… Your sda4 is the extended partition, Your missing partition should be inside it.
– oldfred
May 15 at 19:03
@olfred Unfortunately none of the fixes suggested worked.
– Lucian Gabriel Popescu
May 18 at 18:39
You cannot, nor should not make your Linux partition primary bootable. Windows must the the bootable partition (*). And Linux does not care if primary or logical. You may also need repairs using fsck. Try these commands on your LInux partition. askubuntu.com/questions/642504/…
– oldfred
May 18 at 19:05
Still didn't work: e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda4 Could this be a zero-length partition?
– Lucian Gabriel Popescu
May 19 at 4:31
Your fdisk shows extended starting at 386940926, and swap starting at 460462080 or large gap. Your testdisk shows the Linux partition in that gap, did you not select to save that? You do not install grub to a partition, only to a drive like sda. And /cow means you were trying to install grub to installer /cow is copy on write or the installer.
– oldfred
May 19 at 14:52