Good evening, Stroller. On Wed, Mar 14, 2012 at 05:56:34PM +0000, Stroller wrote:
> On 13 March 2012, at 22:20, Alan Mackenzie wrote: > > … > >> udev does a *lot* more than that, for example the persistent naming of > >> network interfaces. More significantly, it can run programs based on > >> device rules. > > This is where I start getting unhappy. Is there any need for this > > blurring? Having device nodes is essential to a linux system, and > > some programs use these nodes. Why must they be mashed together into a > > tasteless mush? Is there some advantage to this I haven't twigged yet? > Ok, so my system has 2 network cards. Maybe I only use one of them, or > maybe they need to be physically connected in a certain way (one to > LAN, the other WAN). > Before asking this question, with the knowledge and understanding that > we all already have, don't you have to first have to explain how you're > going to ensure that eth0 is always assigned by the system to the first > NIC and eth1 always to the second NIC? By kernel parameters? I once had a problem with the kernel not finding my hard drives. I solved it by putting the following kernel parameters into my lilo.conf: ide2=0xd000,0xd402,11 ide3=0xd800,0xdc02,11 The same could be done for network cards. > >> You could use this to argue that /usr should be mounted before udev is > >> started, but you could just as well use it to argue that udev should not > >> be trying to run such rules at the boot runlevel. > > Or that udev shouldn't have "rules". I still don't understand the basic > > concept driving this thing. My HDDs don't need rules - they just need a > > mapping from /dev/sd[ab] into device 8/0 and 8/16, and the appropriate > > drivers built into my kernel. > I'm assuming, then, that you're happy opening a terminal and typing > `mkdir /mnt/diskname` and mounting the device every time you plug a new > disk in? You might be taking me just a wee bit _too_ literally there. But yes, I mount each removable device I plug in. > Wouldn't it just be nice to plug in your USB devices - hard-drives and > flash drives - and have them magically appear on the desktop like they > do on every other desktop operating system? Yes. > Stroller. -- Alan Mackenzie (Nuremberg, Germany).
