优盘设备读到了 没有挂载 没有udisk文件夹
[ 42.464285] usb 1-1.1: new high speed USB device number 3 using s5p-ehci
[ 42.579873] scsi0 : usb-storage 1-1.1:1.0
[ 43.590306] scsi 0:0:0:0: Direct-Access SanDisk Cruzer Blade 1.00 PQ: 0 ANSI: 6
[ 43.600752] sd 0:0:0:0: [sda] 15630336 512-byte logical blocks: (8.00 GB/7.45 GiB)
[ 43.601991] sd 0:0:0:0: [sda] Write Protect is off
[ 43.602994] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 43.609542] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 43.621914] sda:
[ 43.624992] sd 0:0:0:0: [sda] Attached SCSI removable disk
[root@FriendlyARM /]# ls
bin lib root
data linuxrc sbin
dev lost+found sys
etc mnt tmp
fa-network-service opt usr
home proc var