Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: My device files change!!!!
Operating Systems Linux Red Hat My device files change!!!! Post 302079839 by lenux78 on Thursday 13th of July 2006 08:11:25 AM
Old 07-13-2006
My device files change!!!!
Hi...

this is the situation.

I have a server with redhat Advance Server 3 and the operating system is installed in /dev/sda disk... when i include new Luns dinamically they take the following special files /dev/sdb and /dev/sdc.... ok.. until now is everything ok... but the problem begins when i reboot the system.


I don't know why the system change the order of the device files and now the Operating System change to /dev/sdc and before it was in /dev/sda !!!! and the new Luns take /dev/sda and /dev/sdb instead of /dev/sdb and /dev/sdc...

this is a problem because every time that i would like to include a new Lun they gonna change the device files when i reboot the system!!!!!

How can i avoid this happened????

how can i tell to Linux that maintain the original device files and DON'T CHANGE IT ???????

Thanks for all the suggestions that you can give me.


Lenux78
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

%device line change

Hello and thank you in advance for any assistance. Working with SCO 5.0.5 our SCSI tape device is no longer working. Before we replace the unit I want to verify it's not related to a change someone may have made via mkdev tape. For years the boot message would list the tape device as this:... (1 Reply)
Discussion started by: sighbrrguy
1 Replies

2. UNIX for Dummies Questions & Answers

NIC and Device NO to Change

I am a beginer in unix . I would like to know what is the command in orser to change NIC and Device NO (1 Reply)
Discussion started by: Ilias Kappatos
1 Replies

3. UNIX for Dummies Questions & Answers

How to change tape device name.

I disconected external device which was configured as rmt0. When I connect it again and run cfgmgr device name has changed (internal drive which was rmt1 is now rmt0 and external drive was rmt0 and is rmt1) and I dont know how to back it out. The thing is that for all backups I use new modell... (2 Replies)
Discussion started by: fraydey
2 Replies

4. UNIX for Dummies Questions & Answers

Device Files names and location

HI there. I am studying System administration right now and am stuck on a question that I have failed to find the answer for in my book. The question is: Do device files need to be in the /dev directory and to they need to follow a naming convention? My answer (so far) is that since the... (7 Replies)
Discussion started by: Carl1976
7 Replies

5. AIX

change the primary dump device of a vio server

Hi how to change the primary dump device in a vio server ? $ ioslevel 2.2.0.11-FP-24 SP-01 $ oem_setup_env # sysdumpdev -l primary /dev/sysdumpnull secondary /dev/hd6 copy directory /var/adm/ras forced copy flag TRUE always allow dump TRUE dump... (1 Reply)
Discussion started by: newtoaixos
1 Replies

6. Programming

Does PID change from device to other!!!!

we asked to create a sender and receiver for a signals. sender knows his receiver by it's(receiver) PID .... my question is if i go to other computer and run my program will the pid chages than the first pid i got from old computer? (2 Replies)
Discussion started by: fwrlfo
2 Replies

7. Shell Programming and Scripting

Change the content of files but not change the date

I have 100 files in a directory , all the files have a word "error" and they are created in different date . Now I would like to change the word from "error" to "warning" , and keep the date of the files ( that means do not change the file creation date after change the word ) , can advise what can... (0 Replies)
Discussion started by: ust3
0 Replies

8. Shell Programming and Scripting

Change the content of files but not change the date

I have 100 files in a directory , all the files have a word "error" and they are created in different date . Now I would like to change the word from "error" to "warning" , and keep the date of the files ( that means do not change the file creation date after change the word ) , can advise what can... (7 Replies)
Discussion started by: ust3
7 Replies

9. Red Hat

Auditing device files

I am trying to see what commands are typed in my terminal and serial port. For that I am using auditd daemon which helps me in auditing files. I thought of a creating audit rules on /dev/tty and /dev/ttyAMA0 for seeing whats happening on terminal and serial device respectively. auditctl... (0 Replies)
Discussion started by: pavithra04
0 Replies

10. OS X (Apple)

Change Name of Bluetooth Device from Command Line in macOS

Mac Version 10.15.2 (macOS Catalina) Does anyone know how to change the name of a connected bluetooth device from the command line on macOS? I am having trouble with various bluetooth devices which I cannot get the "rename" option in the GUI to "save" properly and so I cannot rename a few... (0 Replies)
Discussion started by: Neo
0 Replies

LEARN ABOUT OPENSOLARIS

mkdevalloc

mkdevalloc(1M)						  System Administration Commands					    mkdevalloc(1M)

NAME

       mkdevalloc - Make device_allocate entries

SYNOPSIS

       /usr/sbin/mkdevalloc

DESCRIPTION

       The mkdevalloc command writes to standard out a set of device_allocate(4) entries describing the system's frame buffer, audio and removable
       media devices.

       The mkdevalloc command is used by the init.d(4) scripts to create or update the /etc/security/device_allocate file.

       Entries are generated based on the device special files found in /dev. For the different categories  of	devices,  the  mkdevalloc  command
       checks for the following files under /dev:

	 audio		 /dev/audio, /dev/audioctl, /dev/sound/...
	 tape		 /dev/rst*, /dev/nrst*, /dev/rmt/...
	 floppy 	 /dev/diskette, /dev/fd*, /dev/rdiskette, /dev/rfd*
	 removable disk  /dev/sr*, /dev/nsr*, /dev/dsk/c0t?d0s?, /dev/rdsk/c0t?d0s?
	 frame buffer	 /dev/fb

       All  entries  set  the  device-minimum  and device-maximum fields to the hex representations of ADMIN_LOW and ADMIN_HIGH, respectively. The
       device-authorization field is set to solaris.device.allocate, except for the framebuffer entry, where it is  set  to  *.  The  device-name,
       device-type and device-clean fields are set to the following values:

			 device-name	  device-type	device-clean

	 audio		 audio		  audio 	audio_clean_wrapper
	 tape		 mag_tape_0,1,... st		st_clean
	 floppy 	 floppy_0,1,...   fd		disk_clean
	 removable disk  cdrom_0,1,...	  sr		disk_clean
	 frame buffer	 framebuffer	  fb		/bin/true

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       allocate(1), bsmconv(1M), attributes(5)

NOTES

       mkdevalloc might not be supported in a future release of the Solaris operating system.

SunOS 5.11							    8 Oct 2003							    mkdevalloc(1M)
All times are GMT -4. The time now is 07:25 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy