View Full Version : [ubuntu] Strange behaviour GRUB with USB Hard disk

July 21st, 2010, 04:07 PM

I have install Ubuntu on a USB Hard disk and its working fine.

Its Lacie 500 GB which needs external power supply.

After switch on I see GRUB showing Menu/options to boot.
Its fine.

Then I found that my USB Hard disk is switched OFF (USB device is detached from the PC, I can hear the sound)

Then when I choose to boot from GRUB Menu then I had to switch off and switch ON the power supply of USB disk.

I had added "rootdelay 90" so I have enough time to do this.

Then booting is OK.

Now the issue is why GRUB is detaching the USB device? How I can make it so that GRUB will attach automatically.