之前4.X或5.0版也是偶而抓不到，只要execute formatlogdisk幾次
就能抓到Log disk，結果5.2版怎樣就是抓不SD卡
get system status
Version: FortiGate-60C v5.2.3,build0670,150318 (GA)
Virus-DB: 23.00918(2015-02-26 08:50)
Extended DB: 1.00000(2012-10-17 15:46)
IPS-DB: 5.00555(2014-10-07 01:21)
IPS-ETDB: 0.00000(2001-01-01 00:00)
Serial-Number: FGT60C
Botnet DB: 1.00000(2012-05-28 22:51)
BIOS version: 04000010
Log hard disk: Not available
Internal Switch mode: interface
Hostname: FGT60C
Operation Mode: NAT
Current virtual domain: root
Max number of virtual domains: 10
Virtual domains status: 1 in NAT mode, 0 in TP mode
Virtual domain configuration: disable
FIPS-CC mode: disable
Current HA mode: standalone
Branch point: 670
Release Version Information: GA
System time: Fri Apr 10 16:39:27 2015
get hardware status
Model name: FortiGate-60C
ASIC version: CP0
ASIC SRAM: 64M
CPU: FortiSOC
Number of CPUs: 1
RAM: 439 MB
MTD Flash: 128 MB /dev/mtd
Hard disk: not available
USB Flash: not available
可是系統有抓SDHC卡啊
Disk Internal(user-usb) ref: 255 30.2GB type: USB [Generic USB SD Reader] dev: /dev/sda
partition ref: 1 29.3GB, 29.3GB free mounted: Y label: dev: /dev/sda1
該怎麼設定，GOOGLE半天找不到答案
