USB Hotplugging Howto?

mooreted · 02-04-2005, 11:04 AM

I have a Seagate external USB drive that works fine under Mandrake 10.0 with kernel 2.6.7. However, I have to reboot everytime I want to connect it. I have searched all over for howtos on hotplugging the drive but they are all for 2.4.x kernels. I don't want to have to reboot every time I want to use this drive; how can I do that?

ilikejam · 02-04-2005, 11:14 AM

Hi.

USB hot-plugging should Just Work for hard drives.
Are you unmounting before you remove the drive?

Dave

mooreted · 02-04-2005, 11:58 AM

Oh, I didn't think of that. I will try unmounting the drive before removing is and see if that works...

Nope, I get:

[root@localhost mooreted]# umount /dev/sda1
umount: /mnt/USB: device is busy
umount: /mnt/USB: device is busy

I'll start searching for that problem. It's usually because you are in the directory you have the drive mounted to, but not in this case.

ilikejam · 02-04-2005, 12:02 PM

Try doing 'lsof /mnt/USB' (as root) to see what programs are using the drive.

Dave

mooreted · 02-04-2005, 12:04 PM

Okay, it was some process (2607). It unmounted. Now lets see if I can remove it and plug it back in and mount it...

Yep, that worked, thanks!