u盘每次卸载都会报错，不知道为什么

myewen

Unable to stop 30 GB Hard Disk

Error detaching: helper exited with exit code 1: Detaching device /dev/sdb
USB device: /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-4)
SYNCHRONIZE CACHE: FAILED: No such file or directory
(Continuing despite SYNCHRONIZE CACHE failure.)
STOP UNIT: OK
Unbinding USB interface driver: OK
Suspending USB device: FAILED: Cannot open /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-4/power/level for writing: No such file or directory

ziyouwaYJ

写保护？……

myewen

Another error:

Unable mount audio disk

Location is not mountable

zhaoganghit

重新编译内核
<M>   USB Attached SCSI         
<M>   USB Serial Converter support

   USB Generic Serial Driver
<M>   USB Qualcomm Serial modem
<M>   USB driver for GSM and CDMA modems

之后问题解决，我估计只是

   USB Generic Serial Driver 在起作用。