Hello Mikkel, On Wed, 12 Dec 2007 07:59:17 -0600 "Mikkel L. Ellertson" <mikkel@xxxxxxxxxxxxxxxx> wrote: > Tim wrote: > > On Wed, 2007-12-12 at 09:36 +0100, wwp wrote: > >> That still doesn't explain why the order of mounting (and of scsi > >> discovering?) is shuffled > > > > I'm sure it was explained somewhere in this thread. The device names > > are named in the order that the BIOS discovers them. If it checks the > > USB ports first, they get the names first. > > > A slight correction. It is not the BIOS oder that determines the of > the drives under Linux. It is the kernel. What I would expect to > happen is that you would only have the drivers for the drive with > root file system loaded in the initrd, and the scan order would > always be the same unless you physically change drive connections or > add drives. (Or use a kernel parameter to change the order.) > > With SATA drives and USB drives, the USB drive should always be > discovered later then the SATA drive because the usb_storage driver > should not be loaded until after the root file system is mounted. > But if the > usb_storage module is in the initrd, then things are not as clear. > It should still find things in the same order, but in this case, it > isn't. > > One other thing that I should have commented on earlier - there is > nothing that says that the root file system has to be on the first > SCSI drive, so the system can use that in determining what drive > should be /dev/sda. It used to be fairly common in dual boot systems > to have Window on the first drive, and Linux on the second drive. Then it's maybe Nautilus' fault (my problem), 'cause in the Computer place, it was proposing me to mount disk label "storage3" but obviously attempting to mount the WRONG /dev/sdX (I didn't edit fstab or hal rules), as if Nautilus was keeping memory of label and devices assignments upon reboots (and when I rebooted, devices order has changed!). Am I right? Regards, -- wwp
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