Re: Re: Changing over to udev
|> > Plain old static device files can still work, udev is just a nice |> > convenience that makes life easier. |> |> ... or would be if it actually worked. What have you had trouble with? I have 2.6.14.4 and udev 076 from testing and everything just worked (on 2 desktops and a laptop) with no interference from me. I wrote udev rules for a camera and 2 pendrives, but that wasn't exactly hard, and udev has made using those enormously easier. One of the things that I appreciate it is the way I can plug in a USB soundcard and the right module is instantly loaded and the right device files are created in /dev/snd/. I just don't have to think about any of it. Jim -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Changing over to udev
On Wed, 14 Dec 2005 19:45:03 -0800 Marc Wilson <[EMAIL PROTECTED]> wrote: > And I'm using udev on this box. Not that I like it, not that I give a > tinker's damn about demonstrating how big my d*ck is by how empty I can > make /dev (and that emptiness has meant I've had to write rules for every > symlink I ever had in there)... I just wanted persistent naming for four > external USB hard disk enclosures. I'm not really understanding what this issue with symlinks is? On the rare occasion I have poked around with rules udev was easier to figure out for me than devfs was. The issue with recent kernels where you can't predict which network card will be initialized first and get eth0 and you need a specific card to be eth0. The list archive shows a pretty handy solution using a udev rule. I have not had to create a symlink for any hardware devices /dev/dsp, /dev/adsp, /dev/hdX, /dev/sdX, /dev/video0, etc... all show up without me having to do a thing. I had a DVD drive as my only CD type device and for it I had /dev/cdrom, /dev/dvd, and /dev/hdd showing up in /dev. Recently I replaced it with a DVD burner and automagically I now also have /dev/cdrw that shows up, didn't have to do a thing. Later, Seeker -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Changing over to udev
Carl Fink wrote: > On Wed, Dec 14, 2005 at 11:29:17PM -0600, Jacob S wrote: > > >>Plain old static device files can still work, udev is just a nice >>convenience that makes life easier. > > > ... or would be if it actually worked. Works great for me! -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Changing over to udev
Marc Wilson wrote: On Wed, Dec 14, 2005 at 11:00:04PM +0200, David Baron wrote: Udev on Sid requires 2.6.12 or newer kernels. I have 2.6.11 and 2.6.14 (which must have udev). Until 2.6.14 is demonstrably working with udev, I do not want to get rid of 2.6.11 (which uses devfs and current hotplug). Can udev be installed anyway? Consequences? rei $ uname -a Linux rei 2.6.14.2 #1 PREEMPT Mon Nov 21 09:50:55 PST 2005 i686 GNU/Linux And I'm using udev on this box. Not that I like it, not that I give a tinker's damn about demonstrating how big my d*ck is by how empty I can make /dev (and that emptiness has meant I've had to write rules for every symlink I ever had in there)... I just wanted persistent naming for four external USB hard disk enclosures. And I more or less had to use udev to do it. That's unfortunate. I *so* wish md would actually follow through on his claims and demonstrate how to use udev with a static /dev. Oh, and that's a self-built 2.6.14.2... FWIW the last thing I'd ever do is use a Debian kernel. The reason being? H -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Changing over to udev
On Wed, Dec 14, 2005 at 11:29:17PM -0600, Jacob S wrote: > Plain old static device files can still work, udev is just a nice > convenience that makes life easier. ... or would be if it actually worked. -- Carl Fink [EMAIL PROTECTED] "Patriotism is supporting your country all the time, and your government when it deserves it." - Mark Twain -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Changing over to udev
On 14 Dec 2005 22:41:27 -0500 David Zelinsky <[EMAIL PROTECTED]> wrote: > David Baron <[EMAIL PROTECTED]> writes: > > > Udev on Sid requires 2.6.12 or newer kernels. I have 2.6.11 and > > 2.6.14 (which must have udev). > > When I upgraded from 2.4 kernel to 2.6.14 I also installed udev along > the way -- I don't remember why. But I later removed udev because > some device files weren't getting created properly and I couldn't > understand how to fix it. Now everything seems to work fine without > udev, using plain old static device files. Am I missing something? I > am running Sarge not Sid; maybe that's the difference? The difference is that you can write rules for udev so that it will always symlink, for example, your usb pendrive to /dev/pendrive and your usb camera to /dev/webcam. This keeps you from having to look at /var/log/syslog after you plugin each one to figure out which device name it was assigned this time (if I plug in my pendrive first, it's /dev/sdb, but if I plug in the camera and then the pendrive, it's /dev/sdc, etc.). And then if you have to change the preferences for your software each time you plug in the device so that it knows where to find it... you get the idea. Plain old static device files can still work, udev is just a nice convenience that makes life easier. HTH, Jacob -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Changing over to udev
David Baron <[EMAIL PROTECTED]> writes: > Udev on Sid requires 2.6.12 or newer kernels. I have 2.6.11 and 2.6.14 (which > must have udev). When I upgraded from 2.4 kernel to 2.6.14 I also installed udev along the way -- I don't remember why. But I later removed udev because some device files weren't getting created properly and I couldn't understand how to fix it. Now everything seems to work fine without udev, using plain old static device files. Am I missing something? I am running Sarge not Sid; maybe that's the difference? -David -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Changing over to udev
On Wed, Dec 14, 2005 at 11:00:04PM +0200, David Baron wrote: > Udev on Sid requires 2.6.12 or newer kernels. I have 2.6.11 and 2.6.14 (which > must have udev). Until 2.6.14 is demonstrably working with udev, I do not > want to get rid of 2.6.11 (which uses devfs and current hotplug). Can udev be > installed anyway? Consequences? rei $ uname -a Linux rei 2.6.14.2 #1 PREEMPT Mon Nov 21 09:50:55 PST 2005 i686 GNU/Linux And I'm using udev on this box. Not that I like it, not that I give a tinker's damn about demonstrating how big my d*ck is by how empty I can make /dev (and that emptiness has meant I've had to write rules for every symlink I ever had in there)... I just wanted persistent naming for four external USB hard disk enclosures. And I more or less had to use udev to do it. That's unfortunate. I *so* wish md would actually follow through on his claims and demonstrate how to use udev with a static /dev. Oh, and that's a self-built 2.6.14.2... FWIW the last thing I'd ever do is use a Debian kernel. -- Marc Wilson | Q: What's the difference between a duck and an [EMAIL PROTECTED] | elephant? A: You can't get down off an elephant. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Changing over to udev
On Wed, 14 Dec 2005 23:00:04 +0200 David Baron <[EMAIL PROTECTED]> wrote: > If, indeed, this must be done--this provides hotplug functionality as > well. > > Does it need to be in control? As of now, many things are modprobed > before hotplug and hotplug says "already loaded". Might be quite > difficult to find and sort all this out. Hotplug/udev might be > self-sufficient without /etc/modules or alsa configuration scripts > elsewhere but maybe not. > > Udev on Sid requires 2.6.12 or newer kernels. I have 2.6.11 and > 2.6.14 (which must have udev). Until 2.6.14 is demonstrably working > with udev, I do not want to get rid of 2.6.11 (which uses devfs and > current hotplug). Can udev be installed anyway? Consequences? I'm currently trying to learn/convert to udev on Sid as well. What I did was to install the 2.6.12 kernel which can also work without udev. 2.6.12 is currently in Testing. HTH, Jacob -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Changing over to udev
If, indeed, this must be done--this provides hotplug functionality as well. Does it need to be in control? As of now, many things are modprobed before hotplug and hotplug says "already loaded". Might be quite difficult to find and sort all this out. Hotplug/udev might be self-sufficient without /etc/modules or alsa configuration scripts elsewhere but maybe not. Udev on Sid requires 2.6.12 or newer kernels. I have 2.6.11 and 2.6.14 (which must have udev). Until 2.6.14 is demonstrably working with udev, I do not want to get rid of 2.6.11 (which uses devfs and current hotplug). Can udev be installed anyway? Consequences? -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
