Linux mount the U disk as follows
1: insert the U disk into the USB interface and check whether the
is plugged in
2: check the partition and USB device information
with the fdisk command
[root@wgods ~]# fdisk -l
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System /dev/sda1 * 1 13 104391 83 Linux /dev/sda2 14 121601 976655610 8e Linux LVM
Disk /dev/sdb: 4012 MB, 4012900352 bytes 223 heads, 55 sectors/track, 639 cylinders Units = cylinders of 12265 * 512 = 6279680 bytes
Device Boot Start End Blocks Id System /dev/sdb1 * 56 640 3580928 c W95 FAT32 (LBA) Partition 1 has different physical/logical beginnings (non-Linux?): phys=(42, 17, 40) logical=(55, 23, 1) Partition 1 has different physical/logical endings: phys=(487, 222, 55) logical=(639, 6, 31)
From the above information, we can see that the USB device is in FAT32 format, identified as /dev/sdb1
[root@wgods ~]# fdisk -l | grep FAT32 /dev/sdb1 * 56 640 3580928 c W95 FAT32 (LBA)
3: create a usb directory
under mnt
[root@wgods ~]# cd /mnt/ [root@wgods mnt]# mkdir usb
**4: mount U disk **[root@wgods mnt]# mount -t vfat /dev/sdb1 /mnt/usb
Once mounted successfully, we can see the relevant content under /mount/usb.
5: uninstall U disk
When the umount command unloads the U disk, the following error is reported: “device is busy”. The problem can be resolved with the l parameter. Of course, you can also use the fuser command to solve the problem.
is shown below
[root@wgods ~]# umount /mnt/usb umount: /mnt/usb: device is busy umount: /mnt/usb: device is busy
[root@wgods ~]# umount -f /mnt/usb umount2: Device or resource busy umount: /mnt/usb: device is busy umount2: Device or resource busy umount: /mnt/usb: device is busy
[root@wgods ~]# umount -l /mnt/usb
**problem solved **
---------------------------------------------------------------------------------
[root@wgods usb]# umount /mnt/usb umount: /mnt/usb: device is busy umount: /mnt/usb: device is busy [root@wgods usb]# fuser -m /mnt/usb /mnt/usb: 21123c 21158c 21180c 21182c 21223c [root@wgods usb]# ps -auxw | grep 21123 Warning: bad syntax, perhaps a bogus ’-’? See /usr/share/doc/procps-3.2.7/FAQ root 21123 0.0 0.0 3784 672 pts/2 T 15:10 0:00 more 12.sql root 21346 0.0 0.0 3920 696 pts/2 S+ 15:52 0:00 grep 21123
[root@wgods usb]# fuser -kvm /mnt/usb
USER PID ACCESS COMMAND /mnt/usb: root 21123 f.c.. more root 21158 ..c.. man root 21180 ..c.. sh root 21182 ..c.. less root 21223 ..c.. bash
[etl@wgods ~]$ umount /mnt/usb umount: /mnt/usb is not in the fstab (and you are not root) [etl@wgods ~]$ su - root Password: [root@wgods ~]# umount /mnt/usb
**6: delete usb directory **[root@wgods ~]# umount -l /mnt/usb [root@wgods ~]# rm -rf /mnt/usb
Note: sometimes the Chinese file name and directory name will be scrambled when mounted. To avoid this, you can specify a character set by following the command
[root@wgods ~]# mount -t vfat -o iocharset=utf8,codepage=uft8 /dev/sdb1 /mnt/usb
[root@wgods ~]# mount -t vfat -o iocharset=cp936,codepage=936 /dev/sdb1 /mnt/usb
Note: cp936 means simplified Chinese, cp950 means traditional Chinese.