Symptom:
After rebooting, CE300 will hang at Cisco Logo. 
If access to CE300 is still granted, corrupt file system detected.
CE300_Audioin Start Capturing ..
CE300_Audioin ended:0
/usr/local/cisco/etc/rc3.d/C003systeminit SUCCESS
sed: /apps/localconfig/student/.config/chromium/Default/Preferences: No such file or directory

(xfwm4:2987): GLib-GObject-WARNING **: ../../gobject/gvalue.c:184: cannot initialize GValue with type `gint', the value has already been initialized as `gint'

(xfwm4:2987): xfwm4-WARNING **: Failed to connect to session manager: Failed to connect to the session manager: SESSION_MANAGER environment variable not defined
sed: /apps/localconfig/student/.config/chromium/Default/Preferences: No such file or directory
sed: /apps/localconfig/student/.config/chromium/Default/Preferences: No such file or directory
sed: /apps/localconfig/student/.config/chromium/Default/Preferences: No such file or directory
sed: /apps/localconfig/student/.config/chromium/Default/Preferences: No such file or directory
sed: /apps/localconfig/student/.config/chromium/Default/Preferences: No such file or directory
sed: /apps/localconfig/student/.config/chromium/Default/Preferences: No such file or directory
sed: /apps/localconfig/student/.config/chromium/Default/Preferences: No such file or directory

Conditions:
1. integrated with AppSpace Cloud service
2. some processes were still using the partition during the reboot unmounting process.