reassign 397950 debian-installer-utils stop On Fri, Nov 10, 2006 at 05:45:49PM +0100, Laurent Bonnaud wrote: > Hi, > > this system usually boots from an internal SATA disk (/dev/sda). I > recently added an external IEEE1394 disk and when I tried to reboot > the system, it failed. /dev/sda had become the external disk and the > internal disk had become /dev/sdb therefore the initramfs did not find > the correct root FS. > > I could change grub and the fstab to use /dev/sdb instead of /dev/sda, > but I do not want to because I would like to be able to boot my system > even if the external disk is unplugged. > > I could boot my system with the external disk unplugged and plug it > later, but this would not allow me to perform remote reboots. > > Ubuntu solves this problem by using root=UUID=<something> instead of > root=/dev/<something> on the kernel command line. > > A simpler fix would be to change the loading order of kernel modules. > According to the list below, the 1394 modules are loaded before the > sata modules. This order could probably be reversed without harming > anybody.
the kernel never guarantees device ordering, this is an userspace policy to implement. initramfs-tools support to boot via uuid. the installer folks know the ubuntu patches for it, so reassigning. > I have another system (amd64 architecture) with an external IEEE1394 > disk and I have no problem because curiously the modules are loaded in > a different order: <snipp> > Do you know why ? This other system boots on /dev/md0, which avoids > the problem altogether. mdadm uses uuid too, but needs some udev fixes to be completly migrated allowing uuid root. > I did not flag this bug as "grave" because there is a simple > work-around (unplug the external disk), but an unbootable system at > least deserves to be "important". it is currently the most report bug.. so surely a duplicate, anyway etch should not ship without uuid usage. regards -- maks -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
