Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

devfs(7fs) [sunos man page]

devfs(7FS)							   File Systems 							devfs(7FS)

NAME
devfs - Devices file system DESCRIPTION
The devfs filesystem manages a name space of all devices under the Solaris operating environment and is mounted during boot on the /devices name space. The /devices name space is dynamic and reflects the current state of accessible devices under the Solaris operating environment. The names of all attached device instances are present under /devices. The content under /devices is under the exclusive control of the devfs filesystem and cannot be changed. The system may be configured to include a device in one of two ways: By means of dynamic reconfiguration (DR), using, for example, cfgadm(1M). For devices driven by driver.conf(4) enumeration, edit the driver.conf file to add a new entry, then use update_drv(1M) to cause the system to re-read the driver.conf file and thereby enumerate the instance. The device may be attached through a number of system calls and programs, including open(2), stat(2) and ls(1). During device attach, the device driver typically creates minor nodes corresponding to the device via ddi_create_minor_node(9F). If the attach is successful, one or more minor nodes referring to the device are created under /devices. Operations like mknod(2), mkdir(2) and creat(2) are not supported in /devices. FILES
/devices Mount point for devfs file system SEE ALSO
devfsadm(1M), vfstab(4), attach(9E) NOTES
The /devices name space cannot be unmounted. All content at or below the /devices name space is an implementation artifact and subject to incompatible change or removal without notifi- cation. SunOS 5.10 26 Oct 2004 devfs(7FS)

Check Out this Related Man Page

devfs(7FS)                                                         File Systems                                                         devfs(7FS)

NAME
devfs - Devices file system DESCRIPTION
The devfs filesystem manages a name space of all devices under the Solaris operating environment and is mounted during boot on the /devices name space. The /devices name space is dynamic and reflects the current state of accessible devices under the Solaris operating environment. The names of all attached device instances are present under /devices. The content under /devices is under the exclusive control of the devfs filesystem and cannot be changed. The system may be configured to include a device in one of two ways: By means of dynamic reconfiguration (DR), using, for example, cfgadm(1M). For devices driven by driver.conf(4) enumeration, edit the driver.conf file to add a new entry, then use update_drv(1M) to cause the system to re-read the driver.conf file and thereby enumerate the instance. The device may be attached through a number of system calls and programs, including open(2), stat(2) and ls(1). During device attach, the device driver typically creates minor nodes corresponding to the device via ddi_create_minor_node(9F). If the attach is successful, one or more minor nodes referring to the device are created under /devices. Operations like mknod(2), mkdir(2) and creat(2) are not supported in /devices. FILES
/devices Mount point for devfs file system SEE ALSO
devfsadm(1M), vfstab(4), attach(9E) NOTES
The /devices name space cannot be unmounted. All content at or below the /devices name space is an implementation artifact and subject to incompatible change or removal without notifi- cation. SunOS 5.10 26 Oct 2004 devfs(7FS)
Man Page

14 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Experts Only! Hard Question Ahead!!!!

SunOS5.8 is a radical departure from SunOs4.X in many ways. one of the important differences is the handling of devices. Adding devices under SunOS4.x required a kernel reconfiguration, recompliation and reboot. Under SunOS5.X, this has changed with the ability to add some drivers on the fly.... (1 Reply)
Discussion started by: Foo49272
1 Replies

2. UNIX for Dummies Questions & Answers

Devices in Unix

How can I display the devices attached to my computer through the command line? And, how do I get information about each device listed? I'm looking to make sure that my DLT drive is recognized by the computer. Using FreeBSD, if that helps. Thanks! (1 Reply)
Discussion started by: derekc132002
1 Replies

3. UNIX for Advanced & Expert Users

no space left on device

I have a SCO UNIX on my Server. When I last tried to shutdown my system, I got an error message “no space left on device”. Now when I try to boot the system again, I just can't and I get the same error message. Please help! (2 Replies)
Discussion started by: anjane
2 Replies

4. UNIX for Dummies Questions & Answers

Solaris print devices

I've been looking in my /dev directory for my available devices to set up a printer and was expecting to see some lp or lpr devices using Solaris 8, but I do not see them so I'm a little confused? Any help would be greatly appreciated. (2 Replies)
Discussion started by: jroglass
2 Replies

5. HP-UX

HP-UX File System device load

Hi Guys, I am new to HP-UX system, can someone please let me know which file or what process is require to load all the devices when the system boot up. Currently I am having a few issue when starting the system it does not load all the device. Cheers, (0 Replies)
Discussion started by: fkaba81
0 Replies

6. Solaris

SUNWglmr -- rasctrl environment monitoring driver for i2c or SCSI device driver ?

I've been researching minimizeing Solaris 8 and found that on the web page http://www.sun.com/bigadmin/content/packagelist/s8u7PkgList/p2.html the package SUNWglmr is listed as "rasctrl environment monitoring driver for i2c, (Root) (32-bit)" while in the document "Solaris 8 minimize-updt1.pdf"... (1 Reply)
Discussion started by: roygoodwin
1 Replies

7. AIX

file system space arg !!! and confused

Aix 5.2 on a P510 RS6000 My /usr filesystem is sized at 3.8 gb. Check me if I'm wrong here but this should be enough space for /usr? When I installed the o/s I just followed the defaults, didn't add any 3rd party apps, least that I know of. My problem is that it's running at 90% capacity. ... (2 Replies)
Discussion started by: Westy564
2 Replies

8. Shell Programming and Scripting

how to attach a variable from the 2nd file to the 1st file

Hi all, I am a newbie in unix shell script world. Say, I have a list of devices in file01 and then also have file02 with the list of the location. I need to telnet to each devices in file01 and set the location according to file02. Example: #cat file01 ttnpx01 ttnpx02 nncrd01 nncrd02... (5 Replies)
Discussion started by: lo tan
5 Replies

9. AIX

mechanism of AIX ?

Hi all, on aix,whether have udev or devfs mechanism? thanks! (4 Replies)
Discussion started by: anonys
4 Replies

10. UNIX for Dummies Questions & Answers

No space left on device

hello all, i have a proc binary that we run on unix environment, and it is generating this error '' tstfile(): No space left on device '' can you please assist on how to narrow down the problem? thanks (4 Replies)
Discussion started by: mjdbouk
4 Replies

11. Shell Programming and Scripting

sample code to display mounted devices

Hi all I need to write shell script to list out the mounted devices for a particular user. As i am new to shell script please help me. Here the problem is sometime unmounted devices also will be displayed in fstab. How to rectify that? Can anybody help me? Regards Ilamathi (0 Replies)
Discussion started by: ilamathi
0 Replies

12. Solaris

Error: Can't access LM75 devices

Hi Whilst trying to bring out our SunFire V88o server with Solaris 9 we had the following error message: Error: Can't access LM75 devices How can I resolve this problem in order to boot the machine? Thanks Rahman (0 Replies)
Discussion started by: rahmantanko
0 Replies

13. HP-UX

Increasing space in file system

Hi Friends, I want to cut space from one file system and add in another file system. For example I have 100 gb space in /oracle/TST/oraarch I wnat to cut 50 gb from this file system and add 50 in /oracle/TST/sapdata1. Please hel, How I can do it. Regards, Bhagawati Pandey (3 Replies)
Discussion started by: BPANDEY
3 Replies

14. Shell Programming and Scripting

Sort a file content with space

Hello, I need help on. I have a File which stores the information as below. It is space separated file, I want to keep only unique record in file based on file name. Also if you notice sometime filename with space appear in last column like (abc_ xyz1_bc12_20140312_c.xlsx) 03/17/2014 ... (9 Replies)
Discussion started by: kumar30213
9 Replies