Debian Configuration :: Creating Udev Rule For Specific SATA Port
Apr 19, 2011
I have a trayless SATA hotswap bay that is really terrific for quickly attaching and removing SATA hard drives. I'm trying to write a udev rule to create a symbolic link to the device node for the drive that is attached through the hotswap bay (/dev/bay -> /dev/sdX). This eliminates any ambiguity when performing destructive tasks (fdisk, etc). I'm running squeeze amd64. I've read through several tutorials and have it working somewhat. Here's the output of udevadm info for a drive attached via the hotswap bay.
looking at device '/devices/pci0000:00/0000:00:11.0/host7/target7:0:0/7:0:0:0/block/sdb':
KERNEL=="sdb"
SUBSYSTEM=="block"
DRIVER==""
ATTR{range}=="16"
ATTR{ext_range}=="256"
ATTR{removable}=="0"
ATTR{ro}=="0"
ATTR{size}=="156301488"
ATTR{alignment_offset}=="0"
ATTR{capability}=="52" ....
Here is my udev rule
DEVPATH=="/devices/pci0000:00/0000:00:11.0/host7/*", SUBSYSTEM=="block", SYMLINK+="bay%n"
This produces the desired behavior and gives me an fdisk-able device node. The problem I am having is that the "host" component of the DEVPATH varies from bootup to bootup. I'm just using on onboard SATA, host2-7, specifically host7. There is also onboard PATA, host0-1. It seems to just be random which "host"s are assigned to which controller. For example, the next time I boot the system, the onboard SATA will be host0-5 and the onboard PATA will be host6-7. In this simple case, I could just write 2 rules, one for each possibility and it would still be correct because of the different PCI addresses of the two controllers. But on systems with more SCSI (uh... libata, actually) controllers, a "host" file can point to different physical ports between bootstraps. This would be bad. Does anyone know of a way to write a rule to tie a device node to a specific physical SATA port on the motherboard/hba?
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May 12, 2010
i need all my /media/* newly created by insertion of usb drives, chmodded 666.I tried some tips using various threads, but i failed.I'm on Slack 64 13.0.
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Jan 13, 2010
I'm running Ubuntu 9.10 (Karmic Koala) on a laptop and would like NumLock to automatically toggle depending on whether my USB keyboard is plugged in (numlock on) or unplugged (numlock off).
To accomplish this, I first installed the "numlockx" package. numlockx on and numlockx off works fine.
To hook into the device system, I thought I'd use udev. I have read "Writing udev rules", but I'm having trouble getting the udev rule to work.
First, here's an example of the dmesg output:
[20906.985102] usb 3-2: new low speed USB device using uhci_hcd and address 6
[20907.166403] usb 3-2: configuration #1 chosen from 1 choice
[20907.192904] input: Microsoft Natural® Ergonomic Keyboard 4000 as /devices/pci0000:00/0000:00:1a.0/usb3/3-2/3-2:1.0/input/input20
[20907.193100] microsoft 0003:045E:00DB.000B: input,hidraw1: USB HID v1.11
[Code]....
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May 23, 2010
I am trying to write a udev rule for my headset but i don't understand where i get the information to make the rule. I know i need to add
Code: RUN+="bash /home/luke-jennings/headset" at the end of it so the script i wrote runs. I don't know how to get any of the identifying info for the headset and which bits to use where. How do I get the information?
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Jun 3, 2010
I'm trying to set my network interfaces so that they don't get random every boot.(eg assign eth0 to a network interface with a given MAC addr, and eth1 to the other one)I trew in a udev rule (in fact just modified the rules that was automatically generated and set the ethX in it) but the system ignores my udev rule.What am I missing ?Here is all the info :
Code:
$cat /etc/udev/rules.d/70-persistent-net.rules
# This file maintains persistent names for network interfaces.
[code]....
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Mar 29, 2011
I am not good at writing udev rules. I am using RHEL 4.7, I would like to invoke a file install.sh which is in CDROM as soon as the CDROM is inserted
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Aug 1, 2010
I have a UDEV rule below that maps a symlink from a specific usb device and 'Should' run a command.
Code:
BUS=="usb",SYSFS{serial}=="1111111111111111111111111111",SYMLINK+="myusbstick_%n",RUN+="/usr/local/bin/my_command"
The symlink part is fine but it does not appear to run the command when I plug the device in. I can run the command "/usr/local/bin/my_command" from the shell fine.
Code:
mount /dev/myusbstick_1 /media/TMPUSB && cryptsetup luksOpen /dev/md5 md5_crypt --key-file=/media/TMPUSB/key && vgscan && vgchange -ay && mount -a && umount /media/TMPUSB
What am I missing. I have tried +x in owner,group and other.By the way what does UDEV run as, I assumned +x on ROOT as that is the owner should be enough.
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May 2, 2011
On Ubuntu 10.04 I would like to setup udev to execute a backup script when a specific USB drive is inserted. Udev detects the USB drive, but my script is executed 7 times instead of just once. Can't figure out what's wrong.
My udev rules file:
Code:
/etc/udev/rules.d# cat 20-stick.rules
ACTION=="add", ATTRS{vendor}=="Kingston", ATTRS{model}=="DataTraveler G2 ", RUN="/usr/local/bin/sync.sh"
Dummy backup script: connecting USB drive results in 7 times date written to /tmp/test
code....
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Sep 19, 2010
I'm having some trouble with udev, in that it won't create me a symlink for the infrared device which is part of my Hauppauge Nova-TD-500 TV card.I've got the card installed, and for the most part working, but I want to have the infrared device on /dev/ir.I've created a rule in /etc/udev/rules.d/ called 55-dvb_usb_dib0700-ir.rules which contains this:
Code:
SUBSYSTEM=="input", ATTR{name}=="IR-receiver inside an USB DVB receiver", RUN="/bin/date > /home/xbmc/foo", SYMLINK+="ir"
[code]....
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May 29, 2011
I'm trying to configure gpsd 2.96 to start automatically from udev rule on a Slack 13.37 box.1. I've compiled and installed gpsd from sources and made sure it starts manually.2. I've copied the /lib/udev/gpsd.hotplug and /lib/udev/gpsd.hotplug.wrapper scripts in their places from the source tree and made them executable.3. I've copied the gpsd.rules file from sources into /etc/udev/rules.d4. I renamed it 99-persistent-gpsd.rules to run late in the bootup process.5. I've copied the /etc/default/gpsd file from sources and made sure it has the right settings inside.
Now, for the results. If I plug the gps usb dongle in while the system runs, it starts gpsd if it is not started, and it connects to it just as it should. But if I start the system with the dongle in, gpsd doesn't get started during boot. I can't find any relevant message in /var/log/syslog or /var/log/messages for boot time. There is stuff there from when I plug the dongle in while the system is running though. It's like udev ignores the rules for it at boot time.Is there something in the Slackware boot scripts that would prevent running those scriptssd.hotplug.wrapper which in turn runs /lib/udev/gpsd.hotplug which is a Python script)?Here is the contents of 99-persistent-gpsd.rules (ignore the comments referring to Debian, it was meant for a Debian box). My usb gps adapter is the first one - the Prolific chipset one:
Code:
# udev rules for gpsd
# $Id: gpsd.rules 5861 2009-08-03 13:41:01Z bzed $
[code]....
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Nov 16, 2010
firewall server which runs on Debian and then theres windows 2003fileserver. On this machine runs as well SQL server. Letssay it listens to port 1000. From other windows machines I want to connect to this Sql server which holds library database for users. But the connection cant be made. Possible error that firewall Debian machine want let the packets through.So how to I add a rule into iptabels (what file to open and edit?) So that all localconnections to the server lets say which is 192.168.0.2 and the firefall machine is 192.168.0.1 go through! So the connections allowed would be 192.168.0.3-255. How is it safe to do and how will it look like? Sql server uses TCP/IP connection. Heres what I found from web, I think this may be the right rule, but how i modify it correctly.iptables -A INPUT -p tcp -s 0/0 --sport 1000 -d 192.168.0.2 --dport .........? -m state --state NEW,ESTABLISHED -j ACCEPT
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Jan 24, 2010
I have a netbook (MSI Wind U100 rebrand) that has one of those card readers built into the handrest. The thing is I've never used it once, and it keeps popping up in powertop as waking the cpu when it should just shut up and be quiet.Aside from breaking open the case and tearing it out, the immediate solution is to browse to /sys/bus/usb/devices/usb1/1-6/ and pipe 1 to the file remove. That disables it until system reboot or resume, at which point I have to do it all over again.
Code:
$ echo 1 | sudo tee /sys/bus/usb/devices/usb1/1-6/remove
Now I'd like to create an udev rule to make it not get initialized at all. A quick Google search found me this article on creating udev rules, and after toying about with the udevadm tool I managed to produce the attributes/properties of the device.
Code:
zorael@lethe:/sys/bus/usb/devices/usb1/1-6$ udevadm info -a -p $(pwd)
Udevadm info starts with the device specified by the devpath and then walks up the chain of parent devices. It prints for every device found, all possible attributes in the udev rules key format. A rule to match, can be composed by the attributes of the device and the attributes from one single parent device.
looking at device '/bus/usb/devices/usb1/1-6':
KERNEL=="1-6"
SUBSYSTEM=="usb"
DRIVER=="usb"
ATTR{configuration}=="CARD READER
[code].....
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Sep 17, 2015
i'm trying to install driver for some PCI device but i have problems with it - when i run it it gives me an error
Code: Select allmake: Entering directory `/lib/modules/2.6.32-5-686/build'
make: *** No rule to make target `modules'. Stop.
make: Leaving directory `/lib/modules/2.6.32-5-686/build'
i've tried to find solution in internets but have no success usually they say that problem is that ppl forget to download kernel-headers and kernel-sources or unpack kernel-sources or make symlink usr/src/linux but i've done it all and the result is the same.i think the root of problem is that `/lib/modules/ 2.6.32-5-686/build' folder is empty but there have to be this RULE, so what i have to do to have it there? my system is Debian 6.0.10 Squeeze, Kernel 2.6.32-5-686.
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Jan 23, 2011
I have a problem copying my udev rules from other distro to another pc running debian. My box is running debian without any DE and I want my USB disks to be automounted based on the label; I believe udev is the nicest way to do this task.
Anyways : my rules are (copied from archlinux wiki btw)
cat /etc/udev/rules.d/92-my-media-automount.rules
# vim:enc=utf-8:nu:ai:si:et:ts=4:sw=4:ft=udevrules:
# /etc/udev/rules.d/92-my-media-automount.rules
# Only work on sd*
KERNEL!="sd[a-z]*", GOTO="my_media_automount_end"
ACTION=="add", PROGRAM!="/sbin/blkid %N", GOTO="my_media_automount_end" .....
I notice the directory is made successfully up inserting the usb HD, but the mount doesn't succeed. If I manually execute above command, the mount goes ok.
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Apr 25, 2016
I'm trying to configure auditd to monitor "strange" events with apache2 weberver on Wheezy (though same problem occurs on Jessie), tried both with "vanilla" 3.2 and backports 3.16 kernel I am actually using.
Here's auditd rules I have problem with:
Code: Select all-a exit,never -F arch=b64 -S stat -F path=/var/www/server-status -k web
-a exit,always -F arch=b64 -S stat -F uid=www-data -F success=0 -k web
So to recap, I want to log stat syscall failures for www-data user, but excluding some "known" issues, such as that "/var/www/server-status" (after a2enmod status, /server-status path can be accessed for statistics, though apache2 still tries to find physical file for that path and fails).
But the problem is.. excluding does not work.
Here's "auditctl -l" output:
Code: Select all# auditctl -l
LIST_RULES: exit,never arch=3221225534 (0xc000003e) watch=/var/www/server-status key=web syscall=stat
LIST_RULES: exit,always arch=3221225534 (0xc000003e) uid=33 (0x21) success=0 key=web syscall=stat
But when I execute:
Code: Select all# wget -O - http://localhost/server-status
audit.log appears:
Code: Select alltype=SYSCALL msg=audit(1461591557.077:365): arch=c000003e syscall=4 success=no exit=-2 a0=7f1bedab9358 a1=7ffef316ac20 a2=7ffef316ac20 a3=7f1bedab91f8 items=1 ppid=2398 pid=2451 auid=4294967295 uid=33 gid=33 euid=33 suid=33 fsuid=33 egid=33 sgid=33 fsgid=33 tty=(none) ses=4294967295 comm="apache2" exe="/usr/lib/apache2/mpm-prefork/apache2" key="web"
type=CWD msg=audit(1461591557.077:365):Â cwd="/"
type=PATH msg=audit(1461591557.077:365): item=0 name="/var/www/server-status" nametype=UNKNOWN
type=UNKNOWN[1327] msg=audit(1461591557.077:365): proctitle=2F7573722F7362696E2F61706163686532002D6B007374617274
So, syscall=4 (stat) is still captured. Looks like "path" is known for auditd, but not excluded.
I've tried various rule combinations, for example simpler, more generic one:
Code: Select all-a exit,never -F path=/var/www/server-status
But it's the same.
Sadly man audit.rules and man auditctl does not have "exit,never" examples, only some (sometimes also similarly unsuccessfull) google results.
Could it be that Debian kernel does not support some audit features?
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Apr 18, 2016
I have SSD drives without SCT support, because of this I want to tune /sys/block/device-name/device/timeout in order to force mdadm put these drives offline. So, I can see my drive like this:
/dev/disk/by-id/ata-OCZ-SABER1000_A22MJ061512000074.
Where can I tune /sys/block/device-name/device/timeout from 30 to 7 sec only for these drive? I don't want to use rc.local.
Can I create right udev rules for it in /etc/udev/rules.d?
I want to avoid any conflict with /lib/udev/rules.d.
Code: Select all# udevadm monitor --environment --udev
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
UDEV [9302.549485] add   /devices/pci0000:00/0000:00:01.2/0000:03:00.0/host0/target0:0:0 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.2/0000:03:00.0/host0/target0:0:0
DEVTYPE=scsi_target
SEQNUM=5210
SUBSYSTEM=scsi
[Code] ....
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Mar 28, 2011
I'm trying to allow non-root account to use avrdude to program mucrocontrollers. There are many articles online about how to do that, but it seems not to work for me. Every time i try to execute avrdude it says "permission denied". Here's "$ udevadm info --name=/dev/bus/usb/002/011 --attribute-walk" says looking at device '/devices/pci0000:00/0000:00:1d.1/usb2/2-1':
KERNEL=="2-1"
SUBSYSTEM=="usb"
DRIVER=="usb"
ATTR{configuration}==""
[code]....
However, after restarting udev, replugging the device, even rebooting the computer I still get "permission denied". The Vendor and Product match, so what's the problem?
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Jul 15, 2011
i want if a port (exp. 1001) have 20 connections that the next new connection forword to an other port (exp. 1002).
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Jan 24, 2010
I have just bought a DVB-T usb dongle to watch some TV. The software I'm using is vdr, which has to be started through the /etc/init.d/vdr service. I have created a udev script that executes the service on device insertion. It works nicely, however now when I boot up the computer it takes ages to get to desktop. I believe it is because of the WAIT_FOR part. But without this part, the service starts too soon because the usb dongle has been inserted but the firmware has not finished loading. Can someone point out an alternative way to do it? The script is here [URL].
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Apr 14, 2010
After yesterdays upgrade of Squeeze, my Synaptics touchpad's udev configuration is ignored on my EeePC. It was working fine before. Are there any changes in how it is supposed to be configured or is it just broken?
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Apr 23, 2011
I've done an upgrade from lenny to squeeze.Now, I'm getting a lot of udev warning messages at the boot time.Knows someone howto remove them?
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May 10, 2011
I've just installed 'Testing' on a VMware server and after I completed the install with no problems, the system booted into the kernel and I noticed the following start up process error:
startpar: service(s) returned failure: udev...failure!
I have not seen this before and am not sure if it's related to the fact that this is a virtual machine and not a physical server or something else.
Here is a Screenshot.
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Jun 17, 2011
How to hardcode/fix a udev roule for /dev/input/event0?For example my touchscreen device jumped after restart, sometimes will be recognized as input3 and sometimes as input0.
I: Bus=0003 Vendor=1fd2 Product=0064 Version=0100
N: Name="LG Display LGD-MultiTouch"
P: Phys=usb-0000:00:1d.7-4.1/input0
[code]....
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Sep 9, 2015
I am using a 3rd party kernel driver that does not support udev properly. When I was using wheezy I placed the required device files in /lib/udev/devices.
The udev in jessie does not appear to support this. Is there any way to have udev create these device files or will I have to create then using a script at boot-up?
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May 14, 2015
I'm looking forward to know how to connect to a remote server through SSH but from a specific port, so I con drop connections from random ports that's not the one I choose. Is this possible?
I have tried by setting up an iptables entry to forward output through both, PREROUTING and OUTPUT (one at each time, flushing when I can see that it's not working), in NAT table, so I can connect doing ssh localhost
Code: Select alliptables -t nat -I OUTPUT -p tcp -s 127.0.0.1 -d 127.0.0.1 --dport 4141 -j DNAT --to 192.168.1.2:4040
Unfortunately, it is not forwarding as I'd like.
I want to do this because I think that doing this will enhace the security, dropping connections of clients that are trying to connect from not allowed ports. I have already set up fail2ban and created SSH keys, not allowing to login with password, only key allowed. Will only allowing connections from a specific port will enhance the security or not really?
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Sep 17, 2010
Is it possible to setup SSH Daemon to listen on multiple ports and only accept specific groups to a given port? In the past I've created a second SSH Daemon by copying the config file and /etc/init.d/ daemon then configuring each port separately / rules however if I was able to maintain just the one Daemon that would be optimal. Is this possible?
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Jul 17, 2010
I have Fedora 13 installed in a new computer, and form some weird reason, udev is skipping three of my HDs. Looging the output for udev --triger, the entries for the HDs are skipped
Code:
[root@storage ~]# lspci
00:00.0 Host bridge: ATI Technologies Inc RD780 Northbridge only dual slot PCI-e_GFX and HT1 K8 part
00:02.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (external gfx0 port A)
00:06.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (PCI express gpp port C)
00:07.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (PCI express gpp port D)
00:0a.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (PCI express gpp port F) .....
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Sep 7, 2010
I have 3X 5.25 SATA removable bays with hard drives in it. I am working on a new script to manually backup some very important data to those drives. Basically, to eliminate risks of burning the HDD's, or accidentally (either by me or my scripts) destroy data, I normally keep those drives offline, i.e. unpowered. The enclosures are Vantec EZ swap and require a key to turn them on/off. Once it is turned on, Slackware see them without a glitch. My script will basically display a message to warn that the backup is about to happen, then once the user click the OK button, mount the partition to a local folder and then backup the data. The partition will then be unmounted and a new message will be displayed to ask the user to "unplug" the HDD. Cron will take care of the schedule.
Basically, in pseudo code:
Code:
1-Verify if sdd is connected (powered)... If so, procee to #2, else display message box "The HDD is not connected"
2-Mount the partition sdd5 to the local folder
3-Backup
4-Unmount the partition from the local folder
5-Display a message box "The backup was completed with success. You can now disconnect the HDD"
how can I automate the detection of the hdd? I would like the script to poll or probe the HDD to see if it was properly turned on, and if so, proceed with the rest... I tried all kind of stuff but no luck... For example, fdisk -l will list the drive & its partitions if it is connected (powered) and wont if the drive is not connected. I cant use the output of fdisk to efficiently accomplish what I am trying to do...
I want the script to display the messages boxes (Please plug the HDD & You can now unplug the HDD) to a different display (i.e. my laptop). The reason is because the script will run on my server that has no monitor...
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Apr 5, 2011
My firewall , wich is an Ubuntu server 10.10 , have 3 interfaces:
eth0(192.168.0.254):linked to the DMZ
eth1(192.168.1.254):linked to the LAN
eth3(212.217.0.1):linked to the Internet
-The DMZ have one web server with a static address (192.168.0.1).
-My LAN address range is (192.168.1.2-192.168.1.100) managed by a DHCP server in the same firwall machine.
There are some of the rules that I need to set up :
-Allow HTTP between the LAN and the internet
-Allow HTTP between the web server in the DMZ, and the internet.
Is there a way to tell the firewall , to redirect all incoming HTTP requests only to the web server in the DMZ ?
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Jul 1, 2011
I am trying to add mail rules in Evolution, Ubuntu. but it blocks all the mails.
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