Sometimes you wish to make fsck run at the next time (after the computer is powered up/rebooted).
This can be achieved by
By passing the option “F” to shutdown it will force a file system check at the next boot up.
shutdown -rF now |
If the file “/forcefsck” exists then a fsck is forced at boot up.
touch /forcefsck |
A Linux machine will auto check the file system if the last shutdown was unclean (the system was powered off before the file system was unmounted) or if it has passed to much time since the last check.
This can be turned off in a few ways, here are some.
If the sixth option is not 0 (or missing) then fsck will do automatic checking, so change the sixth option to a 0.
As root edit the /etc/fstab (use your favorite text editor or vi).
/dev/sda1 /home/files ext3 defaults 0 0 |
It is possible to pass the option fastboot to the kernel at boot time, this will also prevent fsck from running at boot time.
Edit /boot/grub/menu.lst (use your favorite text editor or vi) [might also be called /etc/grub.conf]
So an example of this would look like
title Debian GNU/Linux, kernel 2.6.26-1-686 root (hd0,0) kernel /vmlinuz-2.6.26-1-686 root=/dev/mapper/root-root--volume ro fastboot initrd /initrd.img-2.6.26-1-686 |
If you only wish to bypass the automatic testing of the file system once, but keep the automatic settings saved you can use the shutdown command with the option “f”.
For instance to reboot without checking
shutdown -rf now |