The kernel's device manager, responsible for the contents of /dev.

learn more… | top users | synonyms

3
votes
0answers
302 views

Define a Policykit action for Upstart

I'm trying to get some user to start, stop and reload services by using the udev Upstart interface. I'm using Ubuntu 10.04. I created the file ...
2
votes
0answers
40 views

Why do my udev rules run if I use udevadm trigger, but NOT at boot time?

I'm having trouble with udev rules not running. Here's an example: I have a rule /etc/udev/rules.d/99-test.rules which contains: ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x8086", ...
2
votes
0answers
97 views

LVM logical volumes do not activate on boot on 13.10

I am running an UbuntuGNOME 13.10 and I set it up without an LVM during the installation process. I am now running it with to encrypted partitions, one is containing a LVM. This all works fine, ...
2
votes
0answers
128 views

How to manually power-on the webcam?

I have a Clevo laptop with a built in webcam, on the keyboard there's a helpful Fn+F10 hotkey that seems to power the device on and off. I'd like to have some control over the webcam without needing ...
1
vote
0answers
82 views

udev rules for pendrive (/dev/sdb1) to change owner, group, permissions

Ubuntu 13.10 - Need udev rule to change owner/permissions for /dev/sdb1 (usb pendrive) when plugged into computer. All combinations tried so far under /etc/udev/rules.d/99-pendrive have failed to ...
1
vote
0answers
35 views

Alternative for removing ignore_device option in udev?

Recently, the option ignore_device has been removed from udev rules. What is the alternative to deny a device to mount or to connect to system in udev rules?
1
vote
0answers
154 views

Ubuntu Server 12.04: Boot hangs with error "udevd[538] inotify_add_watch(…) failed: invalid argument

I'm currently faced with the following situation: when rebooting a Ubuntu 12.04 LTS server after updating (it ran perfectly for a year or so, I updated it around two months ago and rebooted with no ...
1
vote
0answers
125 views

How to store LXC container's files in another folder

Well the answer seems to be given on https://help.ubuntu.com/13.04/serverguide/lxc.html#lxc-hostsetup page under Using a separate filesystem for the container store title but it doesn't work for me. ...
1
vote
0answers
62 views

Problem with cryptdisks-udev service

I am getting an error when I run 'puppet resource services' that complains about the cryptdisks-udev service. The exact error message is as follows: status: Unknown parameter: DEVNAME The error ...
1
vote
0answers
248 views

udev rules for multiple usb game controllers (including dual controllers)

Using XBMCbuntu Eden... I'm having trouble creating udev rules for my controllers. I have a dual arcade stick that has two separate usb connections, and I am having no trouble writing the udev rules ...
1
vote
0answers
485 views

Ubuntu 12.04 boot from LiveCD - “udev timeout sbin/modprobe -bv” error message

I'm trying to install Ubuntu 12.04 from LiveCD. I get the short purple-hue screen at first, but then I get the following error: udev timeout sbin/modprobe -bv pci:v0.... This goes on for 2 ...
1
vote
0answers
56 views

Udev alternates between correct and incorrect network configuration on subsequent reboots

I'm currently experiencing a problem that seemingly lies with udev in Ubuntu 12.04. I have numerous machines in the lab I am managing, all of which have been cloned from a single original master ...
1
vote
0answers
819 views

USB drives not recognized all of a sudden (module usb_storage not loading)

I am very close to the solution, just need to know how to get usb-storage to load I have tried most of the advice on askubuntu and other sites, usb_storage enable to fdisk -l. But I am unable to ...
1
vote
0answers
270 views

Udev rules boot errors

TL;DR; Udev is showing a lot of errors during boot and it is pointing to a .rules file. A little background: I recently upgraded an Ubuntu 5 server to Ubuntu 12. I performed a stepwise upgrade to ...
1
vote
0answers
105 views

why my rule in udev/rules.d does not set the mode and group

jardag@precise-GiB:~$ lsusb Bus 001 Device 006: ID 15ba:002a Olimex Ltd. ARM-USB-TINY-H JTAG interface jardag@precise-GiB:~$ cd /dev/bus/usb crw-rw-r-- 1 root root 189, 0 Apr 4 21:13 001 crw-rw-r-- 1 ...
1
vote
0answers
423 views

Problems booting in recovery mode with Ubuntu 12.10

This is what I get when I boot into recoverymode: udevd[369]: timeout: killing '/sbin/modprobe/ -bv pci:v00001002d00006738sv0000174 Bsd0000174Bbc03sc00i00' [374] It shows multiple times.
1
vote
0answers
163 views

Udev: no takes rule for gps

I'm trying to create a udev rule for a GPS. I tried several ways but can not get the device to be captured by the rule: lsusb: Bus 002 Device 007: ID 067b:2303 Prolific Technology, Inc. PL2303 ...
1
vote
0answers
306 views

How do I mount a USB hard drive to an arbitrary mount point?

I just upgraded my system with an SSD from a hard drive. Loads faster. But, I left all of my large media files on my hard drive. Currently, I have a SATA optical bay caddy on order, but in the ...
1
vote
0answers
250 views

Can Ubuntu be used with an alternative to udev (reason increased boot speed)?

I think that udev can be a wonderful thing, since it really manages that the same Ubuntu system will boot up on virtually "every"(*) hardware setup. So I do really apreciate udev. Still I think it ...
1
vote
0answers
212 views

Failing to upgrade udev on 12.04 armhf (beagleboard)

I have just tried an usual update+upgrade today on my beagleboard and it fails as below: cprov@beagle-one:/var/lib/dpkg$ sudo apt-get upgrade Reading package lists... Done Building dependency tree ...
1
vote
0answers
163 views

How do I set up dependency based startup to reconfigure the network interfaces before networking is started?

I have a system which originally ran Ubuntu 12.04 (now 12.10) on the 'real' hardware. Due to a requirement to run Windows 7 and IE9 (watching streamed movies needed Silverlight with DRM) I installed ...
0
votes
0answers
37 views

What is the difference between /dev/tty* and /dev/bus/usb/001/002?

When I plug in a device that uses the LUFA USB framework (or any USB<->serial peripheral), Ubuntu creates a /dev/ttyACM* device file. It also creates a /dev/bus/usb/001/002 file and a ...
0
votes
0answers
72 views

How to write a udev rules file for /dev/sda

How to write a udev rules file to change permission of /dev/sda for permanent change of ownership to normal user (even after reboot).
0
votes
0answers
29 views

After converting KVM machine to native environment, system boot is slow

A coworker set up a Ubuntu 12.04 system that will eventually be used for booting without a disk via the network with KVM. Everything works as it should on native hardware, except a delay of 113-114 ...
0
votes
0answers
81 views

Egistec ES603 fprin_demo Shows No Device found

On ubuntu 12.04 LTS amd64 I have used the following commands to get fprint_demo. sudo apt-get install libfprint0 fprint-demo libpam-fprint gksu-polkit wget ...
0
votes
0answers
77 views

Simulate USB reconnect to change device number

I have a PS3 controller strangely doesn't work if it's connected as /dev/bus/usb/006/002. If it gets assigned any other device number (like /dev/bus/usb/006/003) then it starts working (which can be ...
0
votes
0answers
85 views

PS3 controller only works after unplugging and plugging in again

I use xboxdrv for my PS3 controllers which I connect via USB. I start xboxdrv with the following command (using daemon because I don't have the controllers connected all the time): sudo ...
0
votes
0answers
34 views

Where is the udev error log located?

I'm trying to add some rules to udev. I've added usb_log="info" in /etc/udev/udev.conf, but I can't figure out where the messages end up. They used to be in syslog, didn't they? I just installed ...
0
votes
0answers
79 views

Ubuntu 13.10 - how to apply kernel patch?

In Ubuntu how can i change this modifications safely? One manufacturer given me the PATCH to apply. "faulty USB2 cameras on USB3 Linux systems. patch" --- linux/drivers/usb/core/hub.c.orig ...
0
votes
0answers
59 views

evdev error opening gtco device

I've got an eInstruction electronic whiteboard which is handled by the gtco kernel module. The event layer looks sane enough to me. Out of the box, X.org didn't use that device, so I added the ...
0
votes
0answers
68 views

/var/log/boot.log incomplete

My core issue is that something is causing udev to spew thousands of messages during boot, slowing down boot by 10 minutes. My interrim issue however is that there are so many messages during boot ...
0
votes
0answers
67 views

Tie via UDEV an external video webcam to /dev/video5 for Apache Server webcam streaming

My aim is to nail my Logitech C270 to /dev/video5 and my old less capable internal cam to /dev/video0 via setting UDEV rules as follows in /etc/udev/init.d/26-video-persistent.rules/ ...
0
votes
0answers
245 views

systemd-udev errors on startup

Ubuntu 13.10, HP-compaq 8510w laptop. I keep seeing the following message on startup and in dmesg: systemd-udevd[304]: error opening ATTR{/sys/devices/pci0000:00/0000:00:1f.2/ata5/host4 ...
0
votes
0answers
121 views

HD serial at /dev/disk/by-id

I am building a function that has to read the HD serial number, and it cannot run external applications or require root privileges. I am aware that I can list the contents of this folder: ...
0
votes
0answers
31 views

UDEV: how to match SYMLINK during remove event?

I am using libusb to contact with a printer. And I am writing a rule for udev to remove the printer when it is disconnected. I use symlink to indicate the device. But when removing, the rule is not ...
0
votes
0answers
58 views

How to map Xrandr output names to /sys/class/drm display names?

I am using the 'udev library libudev' to detect connection and disconnection of displays (monitors) on my system. The display names reported by udev are found in the /system/class/drm directory on my ...
0
votes
0answers
103 views

12.04 udevd[1519]: failed to execute '/lib/udev/modem-modeswitch' after update

After update some package (I can't remember and I don't know how to check which have just update) and reboot, I can't restart unity or compiz. Here are some output while I check system in recovery ...
0
votes
0answers
136 views

Deactivate defect laptop keyboard ubuntu 12.04

My Notebook Keyboard (T430) is defect and spawns more or less random keypress events. So I'm searching for a way, that linux ignore all input that comes from this device. My guess is that I have todo ...
0
votes
0answers
49 views

How to run a script when I connect a device?

new Linux user here (Ubuntu 12.04)... I've been looking on google and found some scripts that would make what I'm about to ask easier but what I would like to do is write a script that automatically ...
0
votes
0answers
33 views

USB to serial converter - no serial number

I have tried a lot of USB->serial converters but none report its iSerial number in udev. This makes it impossible to distinguish between adaptors. This is a problem if they are moved from one USB slot ...
0
votes
0answers
180 views

Ubuntu 12.04 repeatedly trying to mount a StarTech KVM USB Dongle (bad performance)

I'm dealing with an odd issue where Ubuntu 12.04 Server LTS 64-bit is repeatedly attempting to mount a StarTech KVM USB dongle that's attached via VGA and USB. I've already contacted StarTech's ...
0
votes
0answers
239 views

13.04 udev and bios config for MTP

I'm new to ubuntu. Prior to install it on my brand new work computer, i tried ubuntu 13.04 on a gigabyte brix. Main specs as follow: dual core 1.8 ghz intel graphics intel 8 gb of ram unknown ...
0
votes
0answers
105 views

All effects on my desktop have stopped working (UDEV problem?)

Yesterday I upgrade my system (currently running 12.04 with kernel updates from the PPA), and there has been a problem with the update of udev see below for the console output. Setting up udev ...
0
votes
0answers
188 views

Restored Ubuntu VM on VMWare hangs at init: udev-fallback-graphics

We have an Ubuntu server VM on a VMWare cluster that we back up every night. We're testing a restore today and have found that the VM hangs on boot at: init: udev-fallback-graphics main process ...
0
votes
0answers
68 views

Force /dev/sd* assignments on boot

I've got a server with 7 hard drives in it. When I run the command "hddtemp" it takes a /dev/sd* path to tell you the temperature of a drive. I'd like to be able to set up my drives to be persistent ...
0
votes
0answers
576 views

Udev rules boot errors

TL;DR; Udev is showing a lot of errors during boot and it is pointing to a .rules file. A little background: I recently upgraded an Ubuntu 5 server to Ubuntu 12. I performed a stepwise upgrade to ...
0
votes
0answers
221 views

where are devices named if not in 70-persistent-net-rules?

I have a ubuntu 12.04 server VM which has /etc/udev/rules.d/70-persistent-net.rules created as a directory instead of a file. I understand this helps maintain device naming when cloning in a cloud ...
0
votes
0answers
192 views

USB devices sometimes fail to initialize on boot

I have an issue where on some boots my computer basically does not recognize anything plugged in to certain USB ports. Strangely, it never affects the USB hub built in to my monitor but usually it ...
0
votes
0answers
230 views

Add xorg section when device matched (SIS671 VGA)

I am working on small distribution based on Ubuntu. Some of computers we use are SiS based. I need to add proper xorg section which sets video driver to sis671. I can use /etc/X11/xorg.conf file, but ...
0
votes
0answers
392 views

ubuntu 12.04 64b udev rule overwritten

Ubuntu 12.04 64b mounts usb drives (hdd & flash) at /media/{DISK-LABEL} and assigns always 700 permissions. I've written an udev rule in /etc/udev/rules to assign 0755 permissions: ...