Disks not mounted after unexpected power down

grob115 · 05-01-2011, 12:17 AM

For some reason we have some network storage not mounted properly after an unexpected restart (ie OS or memory issue) and the subsequent reboot. Has anyone come across this before? It's a bit strange that certain disks are not mounted.

Anyway, to detect this, can we insert an extra line into the /etc/inittab to perform post start checks. For example, I have inserted an extra line before the runlevel scripts in /etc/inittab file.

The line will call /usr/local/fstab-check.sh to perform a check on the disks mounted via /etc/fstab. Am thinking of comparing the output from the command "df" versus the content of /etc/fstab.

Comments? Should I add this script in the individual run level scripts instead?

Code:

id:5:initdefault:                 

si::sysinit:/etc/rc.d/rc.sysinit  

dfchk:345:wait:/usr/local/fstab-check.sh

l0:0:wait:/etc/rc.d/rc 0    
l1:1:wait:/etc/rc.d/rc 1    
l2:2:wait:/etc/rc.d/rc 2    
l3:3:wait:/etc/rc.d/rc 3    
l4:4:wait:/etc/rc.d/rc 4    
l5:5:wait:/etc/rc.d/rc 5
l6:6:wait:/etc/rc.d/rc 6    

ca::ctrlaltdel:/sbin/shutdown -t3 -r now

pf::powerfail:/sbin/shutdown -f -h +2 "Power Failure; System Shutting Down"
pr:12345:powerokwait:/sbin/shutdown -c "Power Restored; Shutdown Cancelled"

1:2345:respawn:/sbin/mingetty tty1
2:2345:respawn:/sbin/mingetty tty2
3:2345:respawn:/sbin/mingetty tty3
4:2345:respawn:/sbin/mingetty tty4
5:2345:respawn:/sbin/mingetty tty5
6:2345:respawn:/sbin/mingetty tty6

x:5:respawn:/etc/X11/prefdm -nodaemon

droyden · 05-01-2011, 03:58 AM

Add the script to rc.local

grob115 · 05-02-2011, 07:13 AM

Any issue of putting it in /etc/inittab?

droyden · 05-03-2011, 08:08 AM

I guess not but really it should goto the rc.local file as thats what its for..
This script is the final one to run on boot up so if there were any delays in network coming up it should catch it. I have it on a mediabox at home and just stuck in mount -a -t nfs
alternatively you could crontab it