Linux SSHFS挂载验证-两个虚拟机Linux系统之间
由于在Linux板子之间实现NFS文件系统挂载实现较为困难，所以改为sshfs文件系统挂载，下面一步步探索sshfs挂载的流程和实验。首先在2个虚拟机Linux系统之间测试sshfs相互挂载，然后使用buildroot编译sshfs下载到Linux板子中测试。
ubuntu 18.04
查看IP地址
logread@logread:~$ ifconfig
ens33: flags=4163 mtu 1500
inet 192.168.201.132 netmask 255.255.255.0 broadcast 192.168.201.255
inet6 fe80::20c:29ff:fe38:3f29 prefixlen 64 scopeid 0x20
ether 00:0c:29:38:3f:29 txqueuelen 1000 (Ethernet)
RX packets 7256 bytes 9496942 (9.4 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1688 bytes 170434 (170.4 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 安装sshfs软件
logread@logread:~$ sudo apt-get install fuse-sshfs
[sudo] password for logread:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package fuse-sshfs
logread@logread:~$ sudo apt-get install sshfs
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
sshfs
0 upgraded, 1 newly installed, 0 to remove and 64 not upgraded.
Need to get 41.3 kB of archives.
After this operation, 114 kB of additional disk space will be used.
Get:1 https://mirrors.aliyun.com/ubuntu bionic/universe amd64 sshfs amd64 2.8-1 [41.3 kB]
Fetched 41.3 kB in 0s (102 kB/s)
Selecting previously unselected package sshfs.
(Reading database ... 120266 files and directories currently installed.)
Preparing to unpack .../archives/sshfs_2.8-1_amd64.deb ...
Unpacking sshfs (2.8-1) ...
Setting up sshfs (2.8-1) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
logread@logread:~$ 查看sshfs版本
logread@logread:~$ sshfs --version
SSHFS version 2.8
FUSE library version: 2.9.7
fusermount version: 2.9.7
using FUSE kernel interface version 7.19查看支持的sshfs文件系统
logread@logread:~$ cat /proc/filesystems
nodev sysfs
nodev rootfs
nodev ramfs
nodev bdev
nodev proc
nodev cpuset
nodev cgroup
nodev cgroup2
nodev tmpfs
nodev devtmpfs
nodev configfs
nodev debugfs
nodev tracefs
nodev securityfs
nodev sockfs
nodev dax
nodev bpf
nodev pipefs
nodev hugetlbfs
nodev devpts
ext3
ext2
ext4
squashfs
vfat
nodev ecryptfs
fuseblk
nodev fuse
nodev fusectl
nodev pstore
nodev mqueue
btrfs
nodev autofsCentOS 7.3
查看IP地址
[yubo.wang@localhost ~]$ ifconfig
ens33: flags=4163 mtu 1500
inet 192.168.201.130 netmask 255.255.255.0 broadcast 192.168.201.255
inet6 fe80::890e:5af4:e734:af0d prefixlen 64 scopeid 0x20
ether 00:0c:29:33:16:9e txqueuelen 1000 (Ethernet)
RX packets 15717 bytes 21012818 (20.0 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 4633 bytes 442424 (432.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 安装sshfs软件
[yubo.wang@localhost ~]$ sudo yum install fuse-sshfs
[sudo] password for yubo.wang:
Loaded plugins: auto-update-debuginfo, fastestmirror
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
base | 3.6 kB 00:00:00
base-debuginfo | 2.5 kB 00:00:00
epel/x86_64/metalink | 9.4 kB 00:00:00
epel | 4.7 kB 00:00:00
epel-debuginfo/x86_64/metalink | 9.3 kB 00:00:00
epel-debuginfo | 3.0 kB 00:00:00
extras | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
(1/7): epel/x86_64/group_gz | 95 kB 00:00:00
(2/7): epel/x86_64/updateinfo | 1.0 MB 00:00:00
(3/7): extras/7/x86_64/primary_db | 165 kB 00:00:00
(4/7): epel/x86_64/primary_db | 6.8 MB 00:00:00
(5/7): epel-debuginfo/x86_64/primary_db | 803 kB 00:00:00
(6/7): updates/7/x86_64/primary_db | 7.6 MB 00:00:01
(7/7): base-debuginfo/x86_64/primary_db | 2.8 MB 00:06:33
Determining fastest mirrors
* base: mirrors.aliyun.com
* epel: mirrors.aliyun.com
* epel-debuginfo: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package fuse-sshfs.x86_64 0:2.10-1.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
===================================================================================
Package Arch Version Repository Size
===================================================================================
Installing:
fuse-sshfs x86_64 2.10-1.el7 epel 50 k
Transaction Summary
===================================================================================
Install 1 Package
Total download size: 50 k
Installed size: 103 k
Is this ok [y/d/N]: y
Downloading packages:
fuse-sshfs-2.10-1.el7.x86_64.rpm | 50 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : fuse-sshfs-2.10-1.el7.x86_64 1/1
Verifying : fuse-sshfs-2.10-1.el7.x86_64 1/1
Installed:
fuse-sshfs.x86_64 0:2.10-1.el7
Complete!
[yubo.wang@localhost ~]$ sshfs --version
SSHFS version 2.10
FUSE library version: 2.9.2
fusermount version: 2.9.2
using FUSE kernel interface version 7.19查看支持的文件系统
[yubo.wang@localhost ~]$ cat /proc/filesystems
nodev sysfs
nodev rootfs
nodev ramfs
nodev bdev
nodev proc
nodev cgroup
nodev cpuset
nodev tmpfs
nodev devtmpfs
nodev debugfs
nodev securityfs
nodev sockfs
nodev pipefs
nodev anon_inodefs
nodev configfs
nodev devpts
nodev hugetlbfs
nodev autofs
nodev pstore
nodev mqueue
nodev selinuxfs
xfs
nodev rpc_pipefs
nodev nfsd
fuseblk
nodev fuse
nodev fusectlubuntu挂载centos
logread@logread:~$ sshfs [email protected]:/home/yubo.wang/sshfs-dir /home/logread/sshfs-dir
The authenticity of host '192.168.201.130 (192.168.201.130)' can't be established.
ECDSA key fingerprint is SHA256:cvXKQ2H2nAm+jgN8FjygG/BbubibbHxZridZwoh+FTU.
Are you sure you want to continue connecting (yes/no)? yes
[email protected]'s password:
logread@logread:~$ 挂载查询
sshfs (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
[email protected]:/home/yubo.wang/sshfs-dir 116G 99G 18G 85% /home/logread/sshfs-dir
sudo umount /home/logread/sshfs-dir挂载成功，写文件成功
centos挂载ubuntu
挂载测试
[yubo.wang@localhost ~]$ sshfs [email protected]:/home/logread/sshfs-dir /home/yubo.wang/sshfs-dir
fuse: mountpoint is not empty【目录里面有a.c文件，不为空，难道不能挂载非空目录？】【-o nonempty】
fuse: if you are sure this is safe, use the 'nonempty' mount option
[yubo.wang@localhost ~]$ sshfs [email protected]:/home/logread/sshfs-dir /home/yubo.wang/sshfs-dir
The authenticity of host '192.168.201.132 (192.168.201.132)' can't be established.【不检查key：-o StrictHostKeyChecking=no】
ECDSA key fingerprint is 0c:8d:16:d2:ff:d0:9a:02:0b:f5:ab:92:a9:02:f4:e3.
Are you sure you want to continue connecting (yes/no)? yes
[email protected]'s password:
[email protected]'s password:
[email protected]'s password: 【密码怎么会不对？】
read: Connection reset by peer
[yubo.wang@localhost ~]$ 难道是ubuntu不支持nfsd？不用root用户改为logread用户挂载成功
[yubo.wang@localhost ~]$ sshfs -o StrictHostKeyChecking=no [email protected]:/home/logread/sshfs-dir /home/yubo.wang/sshfs-dir
[email protected]'s password:
[yubo.wang@localhost ~]$
[email protected]:/home/logread/sshfs-dir on /home/yubo.wang/sshfs-dir type fuse.sshfs (rw,nosuid,nodev,relatime,user_id=1002,group_id=1002)
[email protected]:/home/logread/sshfs-dir 49G 40G 7.1G 85% /home/yubo.wang/sshfs-dir读写文件成功,卸载成功
fusermount -u /home/yubo.wang/sshfs-dir卸载Ubuntu的fuse
logread@logread:~$ sudo apt-get remove fuse
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
fuse ntfs-3g sshfs
0 upgraded, 0 newly installed, 3 to remove and 64 not upgraded.
After this operation, 1,620 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 120277 files and directories currently installed.)
Removing ntfs-3g (1:2017.3.23-2ubuntu0.18.04.2) ...
Removing sshfs (2.8-1) ...
Removing fuse (2.9.7-1ubuntu1) ...
update-initramfs: deferring update (trigger activated)
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for initramfs-tools (0.130ubuntu3.8) ...
update-initramfs: Generating /boot/initrd.img-4.15.0-96-generic
logread@logread:~$ fuse依然存在，sshfs命令消失，说明只卸载了sshfs命令，不能挂载其他设备，但能被挂载
logread@logread:~$ cat /proc/filesystems
nodev sysfs
nodev rootfs
nodev ramfs
nodev bdev
nodev proc
nodev cpuset
nodev cgroup
nodev cgroup2
nodev tmpfs
nodev devtmpfs
nodev configfs
nodev debugfs
nodev tracefs
nodev securityfs
nodev sockfs
nodev dax
nodev bpf
nodev pipefs
nodev hugetlbfs
nodev devpts
ext3
ext2
ext4
squashfs
vfat
nodev ecryptfs
fuseblk
nodev fuse
nodev fusectl
nodev pstore
nodev mqueue
btrfs
nodev autofs挂载是否成功：也能挂载，能看到文件
[yubo.wang@localhost ~]$ sshfs -o StrictHostKeyChecking=no [email protected]:/home/logread/sshfs-dir /home/yubo.wang/sshfs-dir
[email protected]'s password:
[yubo.wang@localhost ~]$ 重启ubuntu后也能被挂载。