Re: mount external usb drive at boot

[Hannuman Bull <hannuman@bullwebsystems.com>]

Ron Johnson wrote:

> On Fri, 2005-04-08 at 18:57 -0400, Hannuman Bull wrote:
>  
>
> > I have an external usb drive that I'm setting up as a backup hd.  I've 
> > partitioned and formatted the drive as ext3.  I can mount the drive 
> > manually at the prompt, but I can't seem to get fstab to mount it 
> > automatically on boot. 
> >
> > I've changed the /etc/fstab options several times without much success.  
> > Here is my most recent setting:
> >
> >    /dev/sdb1   /backuppc   ext3   rw   0   0
> >    
>
> Change "rw" to "rw,auto".
>
> Since this is a USB drive, and it might not be sdb at some point
> in the future, you should think about using udev.  Then make a site-
> specific device name that the system will always map to that drive,
> no matter where (sd[a-h]) the kernel decides to assign the drive.
>
>  
I read up on udev at http://www.reactivated.net/udevrules.php. Using the 
examples, I was able to create a /dev/usbhd_sg for my specific external 
hd. However, I'm still unable to mount the drive automatically at boot.  
I can still only mount manually.  I changed the /etc/fstab option to 
"rw,auto".

I haven't found anything new in dmesg on the external drive, but I did 
come across the following for my internal SATA hard drive:

Apr  8 17:49:02 edisto kernel: usbcore: registered new driver usbfs
Apr  8 17:49:02 edisto kernel: usbcore: registered new driver hub
Apr  8 17:49:02 edisto kernel: Initializing USB Mass Storage driver...
Apr  8 17:49:02 edisto kernel: usbcore: registered new driver usb-storage
Apr  8 17:49:02 edisto kernel: USB Mass Storage support registered.
Apr  8 17:49:02 edisto kernel: SCSI device sda: 390721968 512-byte hdwr 
sectors (200050 MB)
Apr  8 17:49:02 edisto kernel: SCSI device sda: drive cache: write back
Apr  8 17:49:02 edisto kernel:  /dev/scsi/host0/bus0/target0/lun0: p1 p2 
< p5 p6 p7 >
Apr  8 17:49:02 edisto kernel: Attached scsi disk sda at scsi0, channel 
0, id 0, lun 0
Apr  8 17:49:02 edisto kernel: kjournald starting.  Commit interval 5 
seconds
Apr  8 17:49:02 edisto kernel: EXT3-fs: mounted filesystem with ordered 
data mode.
Apr  8 17:49:02 edisto kernel: Adding 4096532k swap on /dev/sda5.  
Priority:-1 extents:1
Apr  8 17:49:02 edisto kernel: EXT3 FS on sda6, internal journal


The internal drives seems to be recognized as a USB Mass Storage device 
as well, and the partitions on that drive are being mounted properly as 
ext3.  Any suggestions as to why the external USB drive is not doing the 
same?

Thanks,

Hannuman