UNEXPECTED INCONSISTENCY : RUN fsck MANUALLY The root filesystem on /dev/sdb9 requires a manual fsck

BusyBox v1.21.1(Ubuntu 1:1.21.0-1ubuntu1) built in shell(ash)



2 Answers 2


then run fsck /dev/sdb9

type y to fix

once done type exit, it will boot as normal


type fsck /dev/sdb9 and press enter whenever the terminal asks for permission.

Now after the process finishes, type: reboot

After rebooting, open the terminal. Make sure you have internet connectivity and type:

sudo apt-get clean
sudo apt-get update
sudo apt-get upgrade

Now, your system will start normally from now on.

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