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VM shutdown stuck in “mount: you must specify the filesystem type, please stand by while rebooting the system”

November 16th, 2016

When you issue "shutdown" or "reboot" on linux box and found "mount: you must specify the filesystem type, please stand by while rebooting the system":

vm-stuck

Then one possible reason is that you have specified wrong mount options for nfs shares in /etc/fstab. For example, for nfsv3, please make sure to use below nfs options when you mount shares:

<share name> <mount dir> nfs rsize=32768,wsize=32768,hard,nolock,timeo=14,noacl,intr,mountvers=3,vers=3 0 0

And using below option will make VM shutdown stuck in "mount: you must specify the filesystem type". DO NOT use below:

<share name> <mount dir> nfs vers=3,rsize=32768,wsize=32768,hard,nolock,timeo=14,noacl,intr 0 0

Good Luck!


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