I managed to resolve the problem with a different Linux kernel configuration. Unfortunately, i have not been able to figure out yet which piece of kernel config impacted it. I replaced a kernel with only statically compiled elements with a very generic one with almost all options included and most of them being modules. Cheers Toerless On Sat, Feb 27, 2010 at 10:33:02PM -0500, Alan Stern wrote: > On Sun, 28 Feb 2010, Toerless Eckert wrote: > > > I do have problems with external USB disks, that pretty much lead > > to them being useless because linux does not recognize them during > > booting or usb_storage module loading. The only way to recognize > > them is to plug them into the running system. > > > > Drives are Western Digital Elements, 2TB. Kernel is 2.6.29 or 2.6.31 > > > > not fully regocnized by linux (tried 2.6.29/2.6.31) when i boot. > > This has nothing to do with USB; it is a SCSI matter. The problem is > that disk probing fails if the drives are spun down when the probe > begins. You should post your questions on the linux-scsi mailing list. > > Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html