Udev is a Linux process that manages device file entries under /dev

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Unable to unmount a partition - respawned by udev

I have set up the udev rules to automatically mount/unmount the removable devices with udev rules based on this answer (have not enough reputation to comment there). The setup works fine, but when I ...
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How do I get a udev rule that used to work in older versions to work in Linux Mint 17 [duplicate]

I've been using this udev rule for probably ten years: ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", NAME="FTDI/$attr{serial}", MODE="666" I'm sure it's typed correctly as every time I install ...
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2answers
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Is there a udev attribute/something that determines whether a device is a USB drive or not?

I am trying to create a UDEV rule to match/allow the use of USB devices. However, there is a twist. I want to be able to use only USB mass storage. Is there a unique UDEV parameter that can be used ...
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2answers
12k views

PuTTY can access serial port as /dev/ttyUSB0, but not as named udev device

I have multiple USB-to-serial converters. I need to access one of them in particular. I'm using a udev rule to give it a special name. I have rebooted since I last modified it. SUBSYSTEM=="usb", ...
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Failing to load a module on udev event

I have a pretty simple udev rule which is executed when a USB is plugged into my Debian machine: SUBSYSTEMS=="usb", KERNEL=="sd?", ACTION=="add", RUN+="/usr/local/bin/USB/t.sh \ %k" My t.sh is also ...
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275 views

Udev rule not working on Debian

I can detect and mount my USB drive on my Debian VM machine. And the first post here - explained below - works on my Ubuntu machine. Should not it work on Debian too? It doesn't of course. Why is ...
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60 views

Ubuntu 14.04 HDMI UDev Script

I have tried multiple variations to this script but I cannot get it to work. The UDEV Rule fires the script and the script exectutes but simply does not change the audio profile. If I run the script ...
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1k views

udev rule trouble on a Raspberry Pi (Raspbrian) using an ACR122U card reader

I am trying to get my ACR122U usable by all users on my Pi. I have the drivers installed correctly and nfc-list is working for root: root@raspberrypi:/etc/udev/rules.d# nfc-list nfc-list uses libnfc ...
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character device file (rtai_shm) disappears under runlevel=5 in fedora9 (exists when runlevel=3)

I am trying to run Realtime (RTAI) on my Linux Fedora 9 machine. For that, it is needed to have a character device file, named rtai_shm, in /dev, that takes care of shared memory. I have made this ...
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560 views

Why doesn't xsetwacom work from udev?

I made a script to rotate my Wacom Bamboo tablet 180 degrees. It works fine when I execute it as myself (user) or root, but when started from udev (i.e. when plugging the tablet into a usb port) it ...
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udev rules fail to run a script on addition of usb device

Here is a simple rule I created in /etc/udev/rules.d/21-persistent-local.rules for my Seagate 500 GB expansion drive which uses a USB interface on a Debian machine running inside a VM. ...
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2answers
83 views

mount is not executed when called by udev

I tried to create some udev rules to mount and unmount my USB flash drives; the rules for the moment are very simple: ACTION=="add",KERNEL=="sd[b-z]",RUN+="/root/scripts/plug_flash_drive.sh %k" ...
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1answer
1k views

can not create /dev/shm

I need to create /dev/shm on an embedded ARM system. From "Installed The Latest Changes to Current and......". I see that it can be created with mkdir /lib/udev/devices/shm, but I'm wondering what ...
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1answer
90 views

Is nameif deprecated? If so is there an equivalent replacement?

I read that the nameif is deprecated, although I still see it on my Ubuntu 14.04 system. If this command is deprecated, is the command cited for removal or will it still be available? This command ...
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1answer
409 views

udev Unable to Rename Network Device: Device or Resource Busy

I'm trying to use udev rules in order to give my network interfaces static, consistent names. However, it seems like there is some race condition happening preventing these rules from consistently ...
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3answers
1k views

Get device node by major/minor numbers pair

Each device node under /dev has its own major/minor number pair. I know that we can retrieve this pair of numbers from the device node by means of stat, like this: stat -c 'major: %t minor: %T' ...
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1answer
211 views

Why doesn't my udev rule work?

I created a file /etc/udev/rules.d/60.alsa.rules with the following content: KERNEL=="0000:00:1b.0", SUBSYSTEM=="pci", ATTR{label}=="Realtek High Definition Audio Device", ATTR{vendor}=="0x8086", ...
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148 views

persistent network interface naming and kvm

I wonder why my network interface is still named eth0 in my kvm guests. udevadm just outputs # udevadm test-builtin net_id /sys/class/net/eth0 2> /dev/null ID_NET_NAME_MAC=enxc2184ae7ab3f I ...
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1answer
201 views

systemd mount volume using device symlink

I'm trying to have systemd mount a volume by symlink. Unfortunately when I try it times out waiting for the systemd device to show up. # systemctl start mnt-ephemeral0.mount A dependency job for ...
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449 views

How to enable “Predictable Network Interface Names”?

I decided to check out what name my ethernet device will end up with, but contrary to other distros, Debian doesn't seem to have activated this change (or is holding it back?), * Keep the old ...
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1answer
81 views

udev rules for PS/2 and game port don't match on attr, only env

When I build rules for either a PS/2 or game port connected device, udev will never match on attributes, but it will on environment values. The reason why this is an issue can be seen in the output ...
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1answer
322 views

UDev automounting drives as 'usbhd' regardless of type and name on Ubuntu 12.10

I have 3 drives which I use for storage on my system. Here are their mounting points in /etc/fstab # <file system> <mount point> <type> <options> <dump> ...
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1answer
1k views

Map physical USB device path to the Bus/Device number returned by lsusb

I need to get the title of the attached USB device. I can do that with lsusb. udev allows some substitutions when I write rules: say, we can use $kernel to get name of the device, or $devpath to get ...
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Difference between sdX and vdX

When I use Ubuntu and CentOS, I see /dev/sda and /dev/vda. So I can't understand what is the different between above two?
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3k views

Understanding udev rules and permissions in libusb

I had a problem with my scanner. Xsane worked only as root. Using it as normal user it didn't find any devices. Adding the user to the groups saned or scanner didn't help. Finally I solved the ...
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972 views

How does Ubuntu 14.04 achieve persistent eth* interfaces?

Trying to upgrade udev to 197+ on my LFS system, I've come across a problem that old persistent network interface names scheme is no longer supported. Before trying to go on with the new suggested ...
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2answers
2k views

Cannot run script using udev rules

Prescript: I have already searched for similar questions but am not able to find a useful answer. Background: I am using Fedora 64-bit. I want to execute a specific script /bin/usbattached.sh when a ...
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1answer
689 views

Making udev rule for bluetooth keyboard

I'm using a logitech k810 bluetooth keyboard with my laptop running Debian Wheezy. (I got the keyboard working by following this guide.) By default the F1-12 keys are multimedia keys unless the FN ...
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60 views

How to Run a script on USB removal?

I want to execute the script on removal of usb drive. In that script I want to restart the server. Is there any way to do the same ? I know I have to modify the rules in /etc/udev/rules.d/.
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151 views

Persistent drive block usind udev

I have 8 hard disks on a home server. Sometimes I plug and unplug one or two, and if I restart the system all the drive letters are messed up. I would like to assign a block to each hard drive based ...
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Trigger a login by plugging in a USB drive

OS: Linux, Mint. I want to have a system where I can insert a flashdrive into a computer, and using UDEV rules, have the system login a user account. I can do the UDEV part, but what command should I ...
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Udev (197) last_rule not working

I am using udev version 197. I write a rule /etc/udev/rules.d/00-test.rules It's content is : SUBSYSTEMS=="usb", ATTRS{bInterfaceClass}=="e0", ATTRS{bInterfaceSubClass}=="01", ...
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1answer
172 views

Virtual mouse is ignored by xorg when loaded

I'm trying to run virtual mouse driver from book "Essential Linux Device Drivers" but when I'm load this module into kernel using insmod in /var/log/Xorg.0.log I see: [ 757.212] (II) config/udev: ...
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1answer
1k views

USB passthrough for LXC containers

PROBLEM: So I've been trying to get a usb device (primesense - the OEM reference for the Kinect) to passthrough to an LXC container so I can develop without worrying about polluting my stable system ...
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60 views

GKrellM vs. udev's asynchronous drive mappings on bootup

Well, supposing you had multiple drives (3 in this example), udev would always play dice with them on each system reboot. And now, let's make things a little more quirky by adding one USB flash drive ...
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1answer
786 views

Prevent USB storage from using different device on reset

I have a hard drive in a USB enclosure that I am doing some data recovery on. The drive is in extremely bad shape and frequently resets on reads. The device registers as /dev/sdb. Sometimes, probably ...
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70 views

Automounting with udev takes too much time

Specifically, using udev to automount usb memory sticks takes about 3-4 seconds according to its own logs. It may not sound like that much, but it is on an embedded distribution for a system that ...
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1answer
253 views

Executing backup script on external HDD plug using udev

I have tried to write a custom udev rule to run a backup.sh script when I plug my USB 3.0 external hard disk to my home server. I created a new file in /etc/udev/rules.d called 10-custom.rules. In ...
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Udev taking 15 seconds to detect mouse

Whenever my mouse, a SteelSeries Xai, is plugged in, there is a 15 second delay until the mouse is properly recognized and starts working. This is specially troublesome at boot, where udev waits for ...
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1answer
65 views

DHCP Problems Virtualbox

I have some minor issues with Ubuntu server on a virtual machine and even though I have some assumptions as to what actually happens, I'd like to ask all of you about your opinion. Here's the deal: I ...
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Do duplicate udev rules in different files cause any problems?

Do exact duplicate udev rules in different files cause any problems? In my case, it's an 'ADD' rule for a custom device. The rule is apparently working and I can access the device, but I don't know ...
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59 views

different passwords depending on plugged-in devices

I would like to have different passwords for my account(s): When (e.g.) a certain USB stick is plugged in then an easy password is to be used. The idea is: If I leave my computer then I take the stick ...
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1answer
697 views

Not working udev rule with systemd-udevd on Fedora 19

I would like to play with IOIO on my Fedora 19, so I installed the udev rule as the documentation tells, in /etc/udev/rules.d/50-ioio.rules: ACTION=="add", SUBSYSTEM=="tty", SUBSYSTEMS=="usb", ...
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Best Practices for Configuring/Reading Sensor Devices

I have a gadget with a number of environmental sensors attached via an I2C bus, and would like to be able configure and read these sensors via an unprivileged application. Unfortunately, there ...
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87 views

udev, how to prevent further rules to be run?

Is it possible (and if so how) to tell udev to stop executing further rules for a certain device? I know that there is an order/sequence of rules by the alphabetical naming of the udev files. ...
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305 views

80-net-setup-link no longer functions when I downgraded systemd

I've downgraded systemd to version 208. Although I still have /etc/udev/rules.d/80-net-setup-link.rules on my disk, but the names of network interfaces were not named correctly: e.g wlp3s0 is not ...
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Keep keyboard layout upon inserting external keyboard

I have a custom keyboard layout, that I enable using this commands: setxkbmap -verbose us -variant altgr-intl xmodmap -verbose /home/coub/.myxmodmap This works just fine, the thing is, that when I ...
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Modifier keys cannot be mapped to regular keys on USB keyboard with udev

Using an hwdb file, /etc/udev/hwdb.d/99-keyboard.hwdb, I can remap the left Alt key on my USB keyboard as the Ctrl key: keyboard:usb:v*p* KEYBOARD_KEY_700e2=leftctrl This also works when I try to ...
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3answers
12k views

Automounting USB sticks on Debian

I'm running Debian Squeeze on a plug computer (so SSH only, no GUI) and what I'm trying to do is get it so that when a USB stick is plugged in, it gets automatically mounted. What I've done is ...
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How can I find available network interfaces?

This is in regard to linux, but if anyone knows of a general *nix method that would be good. I booted a system yesterday with an ethernet cable plugged in. "NetworkManager" is not installed, so once ...