mount: special device /dev/sda13p3 does not exist

1cpuer

# mount /dev/sda13p3 /mnt/sda13p3
mount: special device /dev/sda13p3 does not exist
什么意思
是没有退出吗？
# cd /mnt/sda13p3

$ 460 [2017-04-25 09:42:39] 星期二  root /mnt/sda13p3
#
我在 /dev/sda13 区下建了一个 /dev/sda13p3 ;通过mount 挂在 /mnt/sda13p3 # 2G

$ 460 [2017-04-25 09:42:39] 星期二  root /mnt/sda13p3
# touch testhui

$ 461 [2017-04-25 09:52:35] 星期二  root /mnt/sda13p3
# ls
testhui

$ 462 [2017-04-25 09:52:36] 星期二  root /mnt/sda13p3
# ls -l
总用量 0
-rwxrwxrwx 1 root root 0 2017-04-25 09:52:35 testhui

$ 463 [2017-04-25 09:52:41] 星期二  root /mnt/sda13p3
# fdisk -l /dev/sda13
Disk /dev/sda13: 177.9 GiB, 191006507008 bytes, 373059584 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0xd03c039e

设备         启动 Start  末尾  扇区 Size Id 类型
/dev/sda13p3       2048 4196351 4194304   2G  5 扩展

$ 464 [2017-04-25 09:54:17] 星期二  root /mnt/sda13p3