[Linux] welcome to emergency mode!

I use / etc / fstab for Linux filesystem automount settings, If you make a mistake in this description, it will not start normally.

Of course, you can not check it even with ssh, so if you look at the console, welcome to emergency mode ! Don't welcome
First, log in as root and

mount -a

Try to remount the contents of the device that auto-mounts at boot time to see where it is stuck.
Once you have identified the cause, edit / etc / fstab </ font>. The item is different from "default".

If you review how to write in / etc / fstab,

`/etc/fstab`


/dev/mapper/vg_data-lv_data　 /database 　ext4　 defaults 　0 　0

1st row...Device name
2nd row...Mount point
3rd row...File system type
4th row...Mounting options
5th row...Specify whether to dump the file system
6th row...Specify whether to perform fsck check at system startup

"0" in the 5th and 6th columns is not set.
In this case, the reason was that the option in the 4th column had to be set to "defaults", but it was set to "default". Shomona!

Even if there is no mistake in the boot file system, anyway, just a mistake in the description in / etc / fstab will force you to enter this mode. Be careful if you cannot access it from the console.

that's all