NFS mount

1、 install NFS service

sudo apt-get install nfs-kernel-server

2、 Modify the configuration and add a shared directory

sudo vim /etc/exports

add to /home/ubuntu/catkin_ws Catalog

# /etc/exports: the access control list for filesystems which may be exported
# to NFS clients. See exports(5).
#
# Example for NFSv2 and NFSv3:
# /srv/homes hostname1(rw,sync,no_subtree_check) hostname2(ro,sync,no_subtree_check)
#
# Example for NFSv4:
# /srv/nfs4 gss/krb5i(rw,sync,fsid=0,crossmnt,no_subtree_check)
# /srv/nfs4/homes gss/krb5i(rw,sync,no_subtree_check)
#
/home/ubuntu/catkin_ws

3、 Set permissions and modify file users for the mounted directory

sudo chmod -R 777 /home/ubuntu/catkin_ws
sudo chown -R 777 /home/ubuntu/catkin_ws

“-R” The scope of the command includes the folder and all its subfolders
4、 start-up nfs service

start-up

 sudo /etc/init.d/nfs-kernel-server start

restart

sudo /etc/init.d/nfs-kernel-server restart

5、 mount

sudo[ Space ]mount[ Space ]-t[ empty
grid ]nfs [ Space ][ Server side IP Address ][ The colon ][ The path of the server to mount the file ][ Space ][ Mount to client
The path of ]

sudo mount -t nfs 192.168.43.214:/home/ubuntu/catkin_ws /mnt

The following sentence can be used when mounting on the server is unsuccessful

sudo mount -t nfs -o nolock,nfsvers=3,vers=3 192.168.43.214:/home/ubuntu/catkin_ws /mnt

6、 View the mount

df -h

[email protected]:~$ df -h
Filesystem                             Size  Used Avail Use% Mounted on
udev                                   1.9G     0  1.9G   0% /dev
tmpfs                                  383M  7.5M  375M   2% /run
/dev/mmcblk0p2                          15G  6.3G  7.4G  46% /
tmpfs                                  1.9G     0  1.9G   0% /dev/shm
tmpfs                                  5.0M     0  5.0M   0% /run/lock
tmpfs                                  1.9G     0  1.9G   0% /sys/fs/cgroup
/dev/mmcblk0p1                         253M   78M  175M  31% /boot/firmware
tmpfs                                  383M   16K  383M   1% /run/user/120
tmpfs                                  383M     0  383M   0% /run/user/1000
192.168.43.214:/home/ubuntu/catkin_ws   15G  6.3G  7.4G  46% /mnt

7、 install NFS client

sudo apt-get install nfs-common

8、 problem 1：nfs Access denied “mount.nfs: access denied by server while mounting 192.168.0.100:/home/wheeltec/catkin_ws”
resolvent ：
There are many web pages , With permission to modify . Modify the shared directory and the mounted directory 777 Authority . There are instructions that will restart but are different . link 1、 link 2

When I encountered this problem, I modified the permissions and configuration files above , After the reboot, the mount succeeds

sudo service nfs-kernel-server restart