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Question

I've installed 3 vm's on virtual manager, I've successfully mounted a file system(mapped) with the host but when I try to mount the file system with the second vm and reboot it's giving me the error as above. I've tried nobootwait in /etc/fstab it's not helping and file system is not mounting.

My contents of /etc/fstab on second vm:

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/vda1 during installation
UUID=43ac7681-6e1c-499f-8059-f5b8f3082916 /               ext4    errors=remount-ro 0       1
# swap was on /dev/vda5 during installation
UUID=2f00440c-d28c-41ba-8b8a-75e816dea4a6,nobootwait none            swap    sw              0       0
g2   /mnt    9p  trans=virtio,version=9p2000.u,rw    0   0

Answer 1

Remove nobootwait from the following line

UUID=2f00440c-d28c-41ba-8b8a-75e816dea4a6,nobootwait none            swap    sw              0       0

also remove the line

g2   /mnt    9p  trans=virtio,version=9p2000.u,rw    0   0

add the following line to the file /etc/rc.local

mount -t 9p -o trans=virtio,version=9p2000.L,rw g2 /mnt

This will execute this command when you start the ubuntu vm and mount the filesystem.

Answer 2

There is an error in your fstab. The line

UUID=2f00440c-d28c-41ba-8b8a-75e816dea4a6,nobootwait none  swap    sw           0       0

should be

UUID=2f00440c-d28c-41ba-8b8a-75e816dea4a6 none            swap    sw            0       0

with a space after the disk ID. If you want to add the nobootwait option, it should go after the sw:

UUID=2f00440c-d28c-41ba-8b8a-75e816dea4a6 none            swap    sw,nobootwait 0       0