Title: Sharing my problem solving experience.
On an ugly morning I received the following message when
booting my NIS server:
mounting proc filesystem [ ERROR ]
dup2: bad file descriptor
My Nis server (TUX) would not boot any further and therefore the
rest of my servers that are dependent on TUX wouldn't boot/respond
either.
After a while of googling I found the following solution
which made me, all of the sudden, very happy and releived:
Begin quote:
How to fix dup2: bad file descriptor on Linux
This error is actually happen because the /dev/null entry in the device inode permission is screwed up
when the system is showing:
mounting proc filesystem [ ERROR ]
dup2: bad file descriptor,
Note: The following step will fix the error:
Proceed with login to repair filesystem (provide root password)
Next mount your root filesystem
mount -n -o remount,rw /dev/hdxx (where hdxx or sdxx is your root partition)
Remove the /dev/null entry
rm -rf /dev/null
Since we've already remove the /dev/null, we have to create a new writeable entry
mknod -m 666 /dev/null c 1 3
Reboot the system using shutdown -r now or shutdown -h now, the filesystem should be
correctly mounted the next round of booting.
End quote.
I will be happy if this will ever help anybody else.
