Sponsored Content
Full Discussion: Info on /dev/dm files
Operating Systems Linux Red Hat Info on /dev/dm files Post 302665017 by Peasant on Monday 2nd of July 2012 01:13:27 AM
Old 07-02-2012
Here is from another document,
Device Mapper Support for the udev Device Manager :

NOTE: /dev/dm-N nodes should never be used in scripts to access the device since the N number is assigned dynamically and changes with the sequence of how devices are activated. Therefore, true names in the /dev/mapper directory should be used. This layout is to support udev requirements of how nodes/symlinks should be created.
These 2 Users Gave Thanks to Peasant For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

mv files to /dev/null

im having trouble with moving files in a directory into /dev/null for file in $HOME/.trashcan/ do mv $file /dev/null done the error msg i get is: mv: /dev/null: not a directory. does anyone know how to fix this? thanks primal (16 Replies)
Discussion started by: primal
16 Replies

2. Solaris

What is /dev/tty /dev/null and /dev/console

Hi, Anyone can help My solaris 8 system has the following /dev/null , /dev/tty and /dev/console All permission are lrwxrwxrwx Can this be change to a non-world write ?? any impact ?? (12 Replies)
Discussion started by: civic2005
12 Replies

3. UNIX for Dummies Questions & Answers

Make /dev/null all the files

How can I make /dev/null all the 8640 files that I am getting from this command. find . \( ! -name . -prune \) -type f -name "EXPORT_v1x0*" | awk -F'_' '$6<20120812' And then delete everything. If I am using this command to delete it, I am getting Disk Quota Exceeded Exception. find .... (4 Replies)
Discussion started by: raihan26
4 Replies

4. Solaris

Lun remove, stuck in /dev/dsk and /dev/rdsk

So, we removed a LUN from the SAN and the system is refusing to remove the references to it in the /dev folder. I've done the following: devfsadm -Cv powermt -q luxadm -e offline <drive path> luxadm probe All those commands failed to remove the path. The drive stills shows up as <drive... (13 Replies)
Discussion started by: DustinT
13 Replies

5. AIX

Difference between /dev/hdisk and /dev/rhdisk

Hi, How can i check that i am using RAW devices for storage in my AIX machine... Also after adding a LUN from storage to a aix host, when i check /dev in the host, i can see both rhdisk and hdisk with same number eg: dcback1(root):/dev>ls -lrt | grep disk12 crw------- 1 root ... (4 Replies)
Discussion started by: jibujacob
4 Replies

6. AIX

Problem in /dev/hd1 and /dev/hd9var

Hello AIXians, I can't boot my AIX, it hangs and stops at the code error: 0518 After searching google, I knew the problem is due to problems in File Systems. So the solution is booting from any bootable media, then run these commands in maintenance mode: #fsck -y /dev/hd4 #fsck -y... (3 Replies)
Discussion started by: Mohannad
3 Replies

7. Shell Programming and Scripting

Automating partitioning setup of /dev/sda on /dev/sdc

Objective: To recreate the partitioning setup of /dev/sda on /dev/sdc How would I parse the below information and initialize variables (an array?) that can be used to build sgdisk commands in a script, regardless of the number of partitions? Something along the lines of: sgdisk -n... (12 Replies)
Discussion started by: RogerBaran
12 Replies

8. Solaris

Why files get created with srwxrwxrwt under /dev/?

$ uname -a SunOS myhost 5.11 11.2 sun4v sparc sun4v I see following 0 byte (regular)files getting created under /dev/mydisks directory : srwxrwxrwt 1 gusr dba 0 Sep 14 23:57 VF_10 srwxrwxrwt 1 gusr dba 0 Sep 14 23:57 DATA1 srwxrwxrwt 1 gusr dba 0 Sep 14 23:57... (8 Replies)
Discussion started by: YShivak
8 Replies

9. Red Hat

Changing grub from /dev/sda to /dev/sdb

Hi, Please suggest steps to change grub from /dev/sda to /dev/sdb, (1 Reply)
Discussion started by: manoj.solaris
1 Replies

10. HP-UX

Dev/urandom and dev/random missing in HP-UX

Hi, In our HP-UX B.11.11. I could not find dev/urandom and dev/random Are all pseudo-devices implemented as device drivers, or in need to run /configure some package to install the package to have dev/urandom. Please help (4 Replies)
Discussion started by: rashi
4 Replies
aoe-mkdevs(8)						      System Manager's Manual						     aoe-mkdevs(8)

NAME
aoe-mkdevs - create special device files for aoe driver SYNOPSIS
aoe-mkdevs {device-dir} env n_partitions=1 aoe-mkdevs {device-dir} DESCRIPTION
The aoe-mkdevs command is deprecated in favor of udev. Systems with udev do not need to use the aoe-mkdevs or aoe-mkself commands, because udev will create device nodes as needed. Systems without udev use aoe-mkdevs to create the character special files necessary to control the aoe driver. The aoe-mkdevs command uses aoe-mkshelf to also create block special files. The aoe drivers after version 49 support dynamic minor device numbers so that a greater number of devices can be supported. The aoe-mkdevs command is incompatible with dynamic device numbers. If your system lacks udev, and you are using an aoe driver version 50 or above, use the aoe_dyndevs=0 module option to force the aoe driver to use static device numbers. If you are not using dynamic device numbers, and you built your aoe driver to support only one partition per device (whole-disk parti- tions), then the device files must match, and you should use the n_partitions environment variable described below. Arguments device-dir This should be the name of the directory where the special device files will be created. ENVIRONMENT VARIABLES
If the n_partitions variable is set in the environment, it will override the default number of partitions per aoe disk, namely 16. EXAMPLE
In this example, the root user on a host named nai creates special files for using the aoe disks in shelf 7. After remembering that the driver doesn't have partition support, this sysadmin gets rid of the mismatching device nodes and calls aoe-mkdevs again with n_partitions set to 1. nai:~# rm -rf /dev/etherd nai:~# aoe-mkdevs /dev/etherd nai:~# ls /dev/etherd | wc -l 1603 nai:~# rm -rf /dev/etherd nai:~# n_partitions=1 aoe-mkdevs /dev/etherd nai:~# ls /dev/etherd | wc -l 103 SEE ALSO
aoe-discover(8), aoe-interfaces(8), aoe-mkshelf(8), aoe-stat(8), aoetools(8), udev(7). AUTHOR
Ed L. Cashin (ecashin@coraid.com) aoe-mkdevs(8)
All times are GMT -4. The time now is 11:53 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy