I power up my personal computer with debian system installed. I
login and automatically my network manager connect to predefined
wireless network because the application nm-applet (network
manager applet) or similar has send the order to network manager
daemon using dbus communication. I mount one folder using NFS o
CIFS.
When i shutdown my computer the error message () appear at the end
of shutdown process.
This situation is because the network manager daemon is release
before unmount network file systems. The idea is correct because
the network manager daemon establish a connection when the
nm-applet send the order and the nm-applet only run when user as
logging. But the nfs is a basic part of system like
networking. The problem is that networkmanager is used to respond
user request (at user level) and change basic system configuration
like network parameters. The nfs depend of network interfaces and
is release before the network is down but it refer to basic
networking daemon, not to networkmanager.
The network manager daemon can modify network connection but must
take in consideration that it can release the current connection
on shutdown because is the networking daemon who must to do it.
networking - work at system level
network file system - work at system an user level.
networkmanager - work at user level but modifying networking (
problem because start late in time and change system configuration
that must be defined at system boot)
The solution is change the release order of daemon on system level 6 and 0.
ls /etc/rc6.d/
...
K02network-manager -> ../init.d/network-manager
K03sendsigs -> ../init.d/sendsigs
K04rsyslog -> ../init.d/rsyslog
K05umountnfs.sh -> ../init.d/umountnfs.sh
K06nfs-common -> ../init.d/nfs-common
K06rpcbind -> ../init.d/rpcbind
K07hwclock.sh -> ../init.d/hwclock.sh
K07networking -> ../init.d/networking
K08umountfs -> ../init.d/umountfs
K09umountroot -> ../init.d/umountroot
K10reboot -> ../init.d/reboot
ls /etc/rc0.d/
K02network-manager -> ../init.d/network-manager
K03sendsigs -> ../init.d/sendsigs
K04rsyslog -> ../init.d/rsyslog
K05umountnfs.sh -> ../init.d/umountnfs.sh
K06nfs-common -> ../init.d/nfs-common
K06rpcbind -> ../init.d/rpcbind
K07hwclock.sh -> ../init.d/hwclock.sh
K07networking -> ../init.d/networking
K08umountfs -> ../init.d/umountfs
K09umountroot -> ../init.d/umountroot
K10halt -> ../init.d/halt
