Skip FSCk while boot / fastboot in linux

How to skip or bypass a fsck on reboot? How to stop a FSCK from prompting or running automatically while rebooting the server.

1. To change grub.conf

Reboot the server using below command

# shutdown -rf now

Above command will reboot the system and will not run auto fsck.

change Linux kernel option by editing grub.conf / menu list.

Open grub.conf or menu list.

# vi /boot/grub.conf

Find kernel line and put "fastboot" at the end of the kernel line. In the end it should look as follow:

kernel /vmlinuz-2.6.18-92.1.22.el5 ro root=LABEL=/ console=tty0 console=ttyS1,19200n8 fastboot


This will be saved as permanent and every time server boots it won’t check the fsck. If you want to do only one time, then edit the grub at the time of boot by pressing the key "e".



2. To change /etc/fstab option:

You can skip the fsck option by modifying the /etc/fstab file like below .

In /etc/fstab end of the mount point option the values to 0 . (sixth field)

If the sixth field is not present or zero, a value of zero is returned and fsck will assume that the filesystem does not need to be checked. Here is sample entry:


LABEL=/disk1        /disk1            ext3    defaults    0 0

then save and exit.

By using the above  2 way we can skip or bypass fsck