Testing changes to fstab

[Robert Moskowitz]

A long time ago I got burned with a type in /etc/fstab and back then I 
was told how to test out changes to fstab.

Well I just added my USB drive to fstab and want to make sure I got it 
right.  The line I added is:

/dev/sdb1        /media/usbdrive        ext4    defaults    1 2

I figure this out from the fstab man page and that the following works:

mount /dev/sdb1 /media/usbdrive

But I want to test first before I reboot.  BTW, the messages I now get 
for this drive during boot are:

Dec 15 19:56:06 homebase kernel: usb 1-2: New USB device found, 
idVendor=0bc2, idProduct=3300
Dec 15 19:56:06 homebase kernel: usb 1-2: New USB device strings: Mfr=1, 
Product=2, SerialNumber=3
Dec 15 19:56:06 homebase kernel: usb 1-2: Product: Desktop
Dec 15 19:56:06 homebase kernel: usb 1-2: Manufacturer: Seagate
Dec 15 19:56:06 homebase kernel: usb 1-2: SerialNumber: 2GHJTCB4
Dec 15 19:56:06 homebase kernel: usb 1-2: configuration #1 chosen from 1 
choice

Oh, and I used e2label to label the partition the same as its serial #).