chroot: failed to run command ‘/bin/bash’: No such file or directory

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up vote
1
down vote

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To fix grub, I tried following codes:



sudo mount /dev/sd6 /mnt 
sudo mount --bind /dev /mnt/dev 
sudo mount --bind /dev/pts /mnt/dev/pts
sudo mount --bind /proc /mnt/proc
sudo mount --bind /sys /mnt/sys


While trying:



sudo chroot /mnt


it shows "chroot: failed to run command ‘/bin/bash’: No such file or directory" error.



Please help me fix this problem.



Thanks in advance.



The output for sudo lsblk -o name,mountpoint,label,size,fstype,uuid | egrep -v ^loop&&sudo fdisk -l is:



NAME MOUNTPOINT LABEL SIZE FSTYPE UUID
sda 931.5G 
├─sda1 ESP 500M vfat 92E7-0D79
├─sda2 128M 
├─sda3 253.5G ntfs B6B65DCCB65D8DAD
├─sda4 WINRETOOLS 450M ntfs 38F87730F876EB8E
├─sda5 [SWAP] 15.3G swap 2a3bc8d1-c30e-4475-b23e-075969c6ec10
├─sda6 190.8G ext4 05298325-c1ee-4f08-8d7c-ea39d13a6958
└─sda7 428.8G ext4 2637ce7a-0e9b-407b-9b1e-021cf3bc536a
sdb /cdrom Ubuntu 16.04 LTS amd64 7.6G iso9660 2016-04-20-22-29-52-00
├─sdb1 Ubuntu 16.04 LTS amd64 1.4G iso9660 2016-04-20-22-29-52-00
└─sdb2 Ubuntu 16.04 LTS amd64 2.3M vfat B1F5-0A13
sr0 1024M 
Disk /dev/ram0: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram1: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram2: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram3: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram4: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram5: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram6: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram7: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram8: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram9: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram10: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram11: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram12: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram13: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram14: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram15: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/loop0: 1.3 GiB, 1433468928 bytes, 2799744 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: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 111A7812-C4EA-440D-AD62-0FE5922BA109

Device Start End Sectors Size Type
/dev/sda1 2048 1026047 1024000 500M EFI System
/dev/sda2 1026048 1288191 262144 128M Microsoft reserved
/dev/sda3 1288192 532901887 531613696 253.5G Microsoft basic data
/dev/sda4 1952602112 1953523711 921600 450M Windows recovery environment
/dev/sda5 621402112 653402111 32000000 15.3G Linux swap
/dev/sda6 653402112 1053403135 400001024 190.8G Linux filesystem
/dev/sda7 1053403136 1952602111 899198976 428.8G Linux filesystem

Partition table entries are not in disk order.




Disk /dev/sdb: 7.6 GiB, 8178892800 bytes, 15974400 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: 0x0e0e8e70

Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 0 2902111 2902112 1.4G 0 Empty
/dev/sdb2 2888004 2892739 4736 2.3M ef EFI (FAT-12/16/32)



grub2 bash mount chroot




share|improve this question


















  • 2




    Did you literally run sudo mount /dev/sd6 /mnt? That is unlikely to work. Furthermore, is it the correct / partition?
    – vidarlo
    Apr 22 at 12:49






  • 3




    Will you edit your question and add the output of this command: sudo lsblk -o name,mountpoint,label,size,fstype,uuid | egrep -v ^loop&&sudo fdisk -l
    – L. D. James
    Apr 22 at 12:51










  • @L.D.James I edited my question, please check it.
    – Mahesh
    Apr 23 at 1:44










  • What architecture are the chroot and the Ubuntu you're running for setting up the chroot?
    – muru
    Apr 23 at 1:53






  • 1




    You appear to have two Linux partitions. The largest is /dev/sda7. There's a chance that your /dev/sda6 might not be complete if it doesn't have a /bin folder. Try the commands you already performed and test /dev/sda7 as an alternative. I thought the output would show a name of your partitions and one might say something like Ubuntu OS and a different one might say DATA.
    – L. D. James
    Apr 23 at 1:56















up vote
1
down vote

favorite












To fix grub, I tried following codes:



sudo mount /dev/sd6 /mnt 
sudo mount --bind /dev /mnt/dev 
sudo mount --bind /dev/pts /mnt/dev/pts
sudo mount --bind /proc /mnt/proc
sudo mount --bind /sys /mnt/sys


While trying:



sudo chroot /mnt


it shows "chroot: failed to run command ‘/bin/bash’: No such file or directory" error.



Please help me fix this problem.



Thanks in advance.



The output for sudo lsblk -o name,mountpoint,label,size,fstype,uuid | egrep -v ^loop&&sudo fdisk -l is:



NAME MOUNTPOINT LABEL SIZE FSTYPE UUID
sda 931.5G 
├─sda1 ESP 500M vfat 92E7-0D79
├─sda2 128M 
├─sda3 253.5G ntfs B6B65DCCB65D8DAD
├─sda4 WINRETOOLS 450M ntfs 38F87730F876EB8E
├─sda5 [SWAP] 15.3G swap 2a3bc8d1-c30e-4475-b23e-075969c6ec10
├─sda6 190.8G ext4 05298325-c1ee-4f08-8d7c-ea39d13a6958
└─sda7 428.8G ext4 2637ce7a-0e9b-407b-9b1e-021cf3bc536a
sdb /cdrom Ubuntu 16.04 LTS amd64 7.6G iso9660 2016-04-20-22-29-52-00
├─sdb1 Ubuntu 16.04 LTS amd64 1.4G iso9660 2016-04-20-22-29-52-00
└─sdb2 Ubuntu 16.04 LTS amd64 2.3M vfat B1F5-0A13
sr0 1024M 
Disk /dev/ram0: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram1: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram2: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram3: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram4: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram5: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram6: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram7: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram8: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram9: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram10: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram11: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram12: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram13: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram14: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram15: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/loop0: 1.3 GiB, 1433468928 bytes, 2799744 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: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 111A7812-C4EA-440D-AD62-0FE5922BA109

Device Start End Sectors Size Type
/dev/sda1 2048 1026047 1024000 500M EFI System
/dev/sda2 1026048 1288191 262144 128M Microsoft reserved
/dev/sda3 1288192 532901887 531613696 253.5G Microsoft basic data
/dev/sda4 1952602112 1953523711 921600 450M Windows recovery environment
/dev/sda5 621402112 653402111 32000000 15.3G Linux swap
/dev/sda6 653402112 1053403135 400001024 190.8G Linux filesystem
/dev/sda7 1053403136 1952602111 899198976 428.8G Linux filesystem

Partition table entries are not in disk order.




Disk /dev/sdb: 7.6 GiB, 8178892800 bytes, 15974400 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: 0x0e0e8e70

Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 0 2902111 2902112 1.4G 0 Empty
/dev/sdb2 2888004 2892739 4736 2.3M ef EFI (FAT-12/16/32)



grub2 bash mount chroot




share|improve this question


















  • 2




    Did you literally run sudo mount /dev/sd6 /mnt? That is unlikely to work. Furthermore, is it the correct / partition?
    – vidarlo
    Apr 22 at 12:49






  • 3




    Will you edit your question and add the output of this command: sudo lsblk -o name,mountpoint,label,size,fstype,uuid | egrep -v ^loop&&sudo fdisk -l
    – L. D. James
    Apr 22 at 12:51










  • @L.D.James I edited my question, please check it.
    – Mahesh
    Apr 23 at 1:44










  • What architecture are the chroot and the Ubuntu you're running for setting up the chroot?
    – muru
    Apr 23 at 1:53






  • 1




    You appear to have two Linux partitions. The largest is /dev/sda7. There's a chance that your /dev/sda6 might not be complete if it doesn't have a /bin folder. Try the commands you already performed and test /dev/sda7 as an alternative. I thought the output would show a name of your partitions and one might say something like Ubuntu OS and a different one might say DATA.
    – L. D. James
    Apr 23 at 1:56













up vote
1
down vote

favorite









up vote
1
down vote

favorite











To fix grub, I tried following codes:



sudo mount /dev/sd6 /mnt 
sudo mount --bind /dev /mnt/dev 
sudo mount --bind /dev/pts /mnt/dev/pts
sudo mount --bind /proc /mnt/proc
sudo mount --bind /sys /mnt/sys


While trying:



sudo chroot /mnt


it shows "chroot: failed to run command ‘/bin/bash’: No such file or directory" error.



Please help me fix this problem.



Thanks in advance.



The output for sudo lsblk -o name,mountpoint,label,size,fstype,uuid | egrep -v ^loop&&sudo fdisk -l is:



NAME MOUNTPOINT LABEL SIZE FSTYPE UUID
sda 931.5G 
├─sda1 ESP 500M vfat 92E7-0D79
├─sda2 128M 
├─sda3 253.5G ntfs B6B65DCCB65D8DAD
├─sda4 WINRETOOLS 450M ntfs 38F87730F876EB8E
├─sda5 [SWAP] 15.3G swap 2a3bc8d1-c30e-4475-b23e-075969c6ec10
├─sda6 190.8G ext4 05298325-c1ee-4f08-8d7c-ea39d13a6958
└─sda7 428.8G ext4 2637ce7a-0e9b-407b-9b1e-021cf3bc536a
sdb /cdrom Ubuntu 16.04 LTS amd64 7.6G iso9660 2016-04-20-22-29-52-00
├─sdb1 Ubuntu 16.04 LTS amd64 1.4G iso9660 2016-04-20-22-29-52-00
└─sdb2 Ubuntu 16.04 LTS amd64 2.3M vfat B1F5-0A13
sr0 1024M 
Disk /dev/ram0: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram1: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram2: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram3: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram4: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram5: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram6: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram7: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram8: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram9: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram10: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram11: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram12: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram13: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram14: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram15: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/loop0: 1.3 GiB, 1433468928 bytes, 2799744 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: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 111A7812-C4EA-440D-AD62-0FE5922BA109

Device Start End Sectors Size Type
/dev/sda1 2048 1026047 1024000 500M EFI System
/dev/sda2 1026048 1288191 262144 128M Microsoft reserved
/dev/sda3 1288192 532901887 531613696 253.5G Microsoft basic data
/dev/sda4 1952602112 1953523711 921600 450M Windows recovery environment
/dev/sda5 621402112 653402111 32000000 15.3G Linux swap
/dev/sda6 653402112 1053403135 400001024 190.8G Linux filesystem
/dev/sda7 1053403136 1952602111 899198976 428.8G Linux filesystem

Partition table entries are not in disk order.




Disk /dev/sdb: 7.6 GiB, 8178892800 bytes, 15974400 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: 0x0e0e8e70

Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 0 2902111 2902112 1.4G 0 Empty
/dev/sdb2 2888004 2892739 4736 2.3M ef EFI (FAT-12/16/32)



grub2 bash mount chroot




share|improve this question














To fix grub, I tried following codes:



sudo mount /dev/sd6 /mnt 
sudo mount --bind /dev /mnt/dev 
sudo mount --bind /dev/pts /mnt/dev/pts
sudo mount --bind /proc /mnt/proc
sudo mount --bind /sys /mnt/sys


While trying:



sudo chroot /mnt


it shows "chroot: failed to run command ‘/bin/bash’: No such file or directory" error.



Please help me fix this problem.



Thanks in advance.



The output for sudo lsblk -o name,mountpoint,label,size,fstype,uuid | egrep -v ^loop&&sudo fdisk -l is:



NAME MOUNTPOINT LABEL SIZE FSTYPE UUID
sda 931.5G 
├─sda1 ESP 500M vfat 92E7-0D79
├─sda2 128M 
├─sda3 253.5G ntfs B6B65DCCB65D8DAD
├─sda4 WINRETOOLS 450M ntfs 38F87730F876EB8E
├─sda5 [SWAP] 15.3G swap 2a3bc8d1-c30e-4475-b23e-075969c6ec10
├─sda6 190.8G ext4 05298325-c1ee-4f08-8d7c-ea39d13a6958
└─sda7 428.8G ext4 2637ce7a-0e9b-407b-9b1e-021cf3bc536a
sdb /cdrom Ubuntu 16.04 LTS amd64 7.6G iso9660 2016-04-20-22-29-52-00
├─sdb1 Ubuntu 16.04 LTS amd64 1.4G iso9660 2016-04-20-22-29-52-00
└─sdb2 Ubuntu 16.04 LTS amd64 2.3M vfat B1F5-0A13
sr0 1024M 
Disk /dev/ram0: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram1: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram2: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram3: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram4: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram5: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram6: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram7: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram8: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram9: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram10: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram11: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram12: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram13: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram14: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram15: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/loop0: 1.3 GiB, 1433468928 bytes, 2799744 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: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 111A7812-C4EA-440D-AD62-0FE5922BA109

Device Start End Sectors Size Type
/dev/sda1 2048 1026047 1024000 500M EFI System
/dev/sda2 1026048 1288191 262144 128M Microsoft reserved
/dev/sda3 1288192 532901887 531613696 253.5G Microsoft basic data
/dev/sda4 1952602112 1953523711 921600 450M Windows recovery environment
/dev/sda5 621402112 653402111 32000000 15.3G Linux swap
/dev/sda6 653402112 1053403135 400001024 190.8G Linux filesystem
/dev/sda7 1053403136 1952602111 899198976 428.8G Linux filesystem

Partition table entries are not in disk order.




Disk /dev/sdb: 7.6 GiB, 8178892800 bytes, 15974400 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: 0x0e0e8e70

Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 0 2902111 2902112 1.4G 0 Empty
/dev/sdb2 2888004 2892739 4736 2.3M ef EFI (FAT-12/16/32)




grub2 bash mount chroot





share|improve this question













share|improve this question




share|improve this question








edited Apr 23 at 1:52









muru

129k19272462




129k19272462










asked Apr 22 at 12:42









Mahesh

62




62







  • 2




    Did you literally run sudo mount /dev/sd6 /mnt? That is unlikely to work. Furthermore, is it the correct / partition?
    – vidarlo
    Apr 22 at 12:49






  • 3




    Will you edit your question and add the output of this command: sudo lsblk -o name,mountpoint,label,size,fstype,uuid | egrep -v ^loop&&sudo fdisk -l
    – L. D. James
    Apr 22 at 12:51










  • @L.D.James I edited my question, please check it.
    – Mahesh
    Apr 23 at 1:44










  • What architecture are the chroot and the Ubuntu you're running for setting up the chroot?
    – muru
    Apr 23 at 1:53






  • 1




    You appear to have two Linux partitions. The largest is /dev/sda7. There's a chance that your /dev/sda6 might not be complete if it doesn't have a /bin folder. Try the commands you already performed and test /dev/sda7 as an alternative. I thought the output would show a name of your partitions and one might say something like Ubuntu OS and a different one might say DATA.
    – L. D. James
    Apr 23 at 1:56













  • 2




    Did you literally run sudo mount /dev/sd6 /mnt? That is unlikely to work. Furthermore, is it the correct / partition?
    – vidarlo
    Apr 22 at 12:49






  • 3




    Will you edit your question and add the output of this command: sudo lsblk -o name,mountpoint,label,size,fstype,uuid | egrep -v ^loop&&sudo fdisk -l
    – L. D. James
    Apr 22 at 12:51










  • @L.D.James I edited my question, please check it.
    – Mahesh
    Apr 23 at 1:44










  • What architecture are the chroot and the Ubuntu you're running for setting up the chroot?
    – muru
    Apr 23 at 1:53






  • 1




    You appear to have two Linux partitions. The largest is /dev/sda7. There's a chance that your /dev/sda6 might not be complete if it doesn't have a /bin folder. Try the commands you already performed and test /dev/sda7 as an alternative. I thought the output would show a name of your partitions and one might say something like Ubuntu OS and a different one might say DATA.
    – L. D. James
    Apr 23 at 1:56








2




2




Did you literally run sudo mount /dev/sd6 /mnt? That is unlikely to work. Furthermore, is it the correct / partition?
– vidarlo
Apr 22 at 12:49




Did you literally run sudo mount /dev/sd6 /mnt? That is unlikely to work. Furthermore, is it the correct / partition?
– vidarlo
Apr 22 at 12:49




3




3




Will you edit your question and add the output of this command: sudo lsblk -o name,mountpoint,label,size,fstype,uuid | egrep -v ^loop&&sudo fdisk -l
– L. D. James
Apr 22 at 12:51




Will you edit your question and add the output of this command: sudo lsblk -o name,mountpoint,label,size,fstype,uuid | egrep -v ^loop&&sudo fdisk -l
– L. D. James
Apr 22 at 12:51












@L.D.James I edited my question, please check it.
– Mahesh
Apr 23 at 1:44




@L.D.James I edited my question, please check it.
– Mahesh
Apr 23 at 1:44












What architecture are the chroot and the Ubuntu you're running for setting up the chroot?
– muru
Apr 23 at 1:53




What architecture are the chroot and the Ubuntu you're running for setting up the chroot?
– muru
Apr 23 at 1:53




1




1




You appear to have two Linux partitions. The largest is /dev/sda7. There's a chance that your /dev/sda6 might not be complete if it doesn't have a /bin folder. Try the commands you already performed and test /dev/sda7 as an alternative. I thought the output would show a name of your partitions and one might say something like Ubuntu OS and a different one might say DATA.
– L. D. James
Apr 23 at 1:56





You appear to have two Linux partitions. The largest is /dev/sda7. There's a chance that your /dev/sda6 might not be complete if it doesn't have a /bin folder. Try the commands you already performed and test /dev/sda7 as an alternative. I thought the output would show a name of your partitions and one might say something like Ubuntu OS and a different one might say DATA.
– L. D. James
Apr 23 at 1:56
















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