how to unmount stuff at suspend

[Mrak]

hi all

i mount my windows shares with this in fstab

//192.168.1.10/backup /mnt/backup cifs username=xxx,password=xxx 0 0

buut when i close my laptop for a while those shares doesnt work any more, are busy or something so they cant be unmounted or mounted, so only reboot will do and that takes few min because mx have mounted drives wich cant be unmounted.. that or button power off..

 

so i look for a way if possible to unmount everything when i close lid on laptop so it doesnt break while in standby, i can easily remount everything with mount -a

umountnfs.sh works well for unmounting but duno how to use it automaticaly when laptop goes to standby

system is mx kde on thinkpad x260

 

thanks ;)