On Thu, Feb 06, 2014 at 06:44:11PM -0800, David Avery wrote: > Can the device names for hard drives be forced before root is mounted > in so much so that udev rules can force via a device serial number to > be a specific /dev/sdX device name. No you can't, sorry. Please use the persistant names instead, the ones in /dev/disk/ for this. > Looking at my pci and bios boot order I shouldn't even need to do this > but I think the defaults of udev or the sysfs?? are to move USB > devices to latter drive letters. You don't know what device is going to be discovered first, and they can be reordered on different boots all the time. Use the /dev/disk/ links instead. > I am booting from a USB 16GB flash drive and would prefer the device > be sda but even if I could force it to be sdz, and force my sata > drives to be specific drive letters based on their serial numbers so > that I can create a hotswap raid array and be confident that once my > drives are installed they won't move around to different device names. Then use the /dev/disk/ links, that way they can always be confident, that is what they are there for. Just ignore the kernel names, they mean nothing, use the /dev/disk/ ones instead, as they will always be correct. Hope this helps, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
