Create the raw devices under Linux

Hi,
Hoe can I create the raw devices under Linux?

Hi,
I just have created two raw devices,
1, /etc/sysconfig/rawdevices
/dev/raw/raw1 /dev/hda2
/dev/raw/raw2 /dev/hda3
2, chown oracle:dba /dev/raw/rawN and chmod 660 /dev/raw/rawN
3, after restart the machine, start I runInstaller again.
But Oracle can still not find the candidate disks, even after give the path /dev/raw
Why?

Similar Messages

Raw devices under Linux 2.4.x

Hi.
Does Oracle 8.1.7 support raw devices under linux 2.4.x? Is there some documentation? What advantages/disadvantages? Is it worth moving from ext2 to raw?

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Andrij Korud ([email protected]):
Hi.
Does Oracle 8.1.7 support raw devices under linux 2.4.x? Is there some documentation? What advantages/disadvantages? Is it worth moving from ext2 to raw?<HR></BLOCKQUOTE>
Oracle does fully support raw devices. For a mini cookbook, search on "raw device". I've put up a mini story on how to make raw redologs.

CREATING RAW DEVICE IN LINUX

HI ALL,
in redhat linux 5 how to format the disk(ex: /opt,/u01,.....) and make it as raw device for ASM installation

DSP_863977 wrote:
HI ALL,
in redhat linux 5 how to format the disk(ex: /opt,/u01,.....) and make it as raw device for ASM installationit is not possible to change a mount /opt or /u01 for ASM storage.
for learning purpose you can learn with vmware server to create a raw device to configure/install ASM.
Refer the link:- shared storage part for linux5/rhel5
http://oracleinstance.blogspot.com/2010/03/oracle-10g-installation-in-linux-5.html
for more information refer the link:-
http://download.oracle.com/docs/cd/B28359_01/server.111/b31107/asmprepare.htm

How use raw device in linux?

Hi all.
scene:
oracle 8.1.6.1
Linux red hat 6.1
I'm trying to create a database with raw device.
In HPux the raw device is /dev/rdsk but I found no documentation for linux raw device.
thanks for any help.
null

Prove it: try to create file large than 2Gb on 8.1.6 under Linux (under NT it works) and try to use raw partitions. About Pmon ORA-601 simply check Metalink.
I know Oracle, it is my work. I like Oracle database. I think, Linux is the best OS. But i want Oracle to solve current bugs more quickly, for a customers could not say "Oracle on Linux - it ***** ". Because, customers must to know about problems to avoid it. It is a more biger problem, when database is crashed.

Analog Triggering and Interrupt generation on the PCIe-6320 under Linux

We would like to use the analog triggering functions of the PCIe-6320 under Linux to time tag external events.
I have no experience with the MH DDK but have been told this is what we would need to implement the functions we want. We plan on using Fedora Linux and we are targetting kernel 2.6.31 with the PREEMPT_RT patch applied. We may consider slightly more recent kernel versions. The PREEMPT_RT patch is used to greatly improve determinism in the system and get real-time responses to some external events.
Here is what we wish to do in more details:
We wish to route at least two analog inputs to the comparator, then route the output of the comparator to a digital input which in turn would create a PCIe interrupt. The interrupt software handler would than time tag that event for our application purposes. We need the comparator threshold to be software programmable in level and slope. We are also interested in using the Watchdog Timer feature of the board.
Our application is written in C/C++.
Would the above be feasible? Please provide comments and instructions how we should address our requirement.
Thanks!

Patof wrote:
I am not familiar with the MHDDK. I would like to have an idea of the effort required to implement the functions I have described using MHDDK on Linux. Like I mentionned, we plan on using Linux kernel 2.6.31 with the PREEMPT_RT patch. Could you provide comments on that matter? I need to evaluate the amount of time I will need to spend to deploy and use MHDDK for the PCIe-6320.
There are two factors to consider when writing a driver for your specific application:
Using the deterministic kernel API calls
Writing to the device registers to
Control the watchdog timer
Configure the analog comparator
Manage the analog subsystem state as trigger events occur
Handle device interrupts
The MHDDK for X Series offers the following behavior out-of-the-tarball:
A Linux kernel module using the standanrd kernel and PCI subsystem calls
Mapping device registers to user-mode for access
Demonstrating/documenting how to
Control the watchdog timer (dioex6.cpp)
Manage the analog subsystem state as trigger events occur (aiex2.cpp, aiex4.cpp)
Handle device interrupts (reference manual only)
There are two notably missing pieces and one item to consider:
Missing: deterministic kernel API calls. If you decide to use the nirlpk module, you would need to change it from the standard interfaces to the deterministic variants.
Missing: configuring the analog comparator. You will need to implement this with additional insight from this discussion board.
Consider: if your application requires device access from kernel-mode only, you would not be able to use the MHDDK's C++ classes that perform device programming but would need to implement register programming in C.
To estimate the time for these three, here are my recommendations:
Review the nirlpk.c source file to understand how device access and DMA buffers are implemented and mapped to the user-mode application.
Beware that operation-specific programming help (as you would need for analog triggering) typically requires two weeks for a complete response.
Review the ChipObjects in the MHDDK distribution to understand how register addresses, widths, and bit fields affect device programming.
Joe Friedchicken
NI VirtualBench Application Software
Get with your fellow hardware users :: [ NI's VirtualBench User Group ]
Get with your fellow OS users :: [ NI's Linux User Group ] [ NI's OS X User Group ]
Get with your fellow developers :: [ NI's DAQmx Base User Group ] [ NI's DDK User Group ]
Senior Software Engineer :: Multifunction Instruments Applications Group
Software Engineer :: Measurements RLP Group (until Mar 2014)
Applications Engineer :: High Speed Product Group (until Sep 2008)

I had to re-install XP on my laptop. I installed itunes. Now I want to restore my music from backup CD's. But the option device under file is greyed out. I can't select restore from backup. How do I make the restore option active. I have an ipod nano

I had to re-install XP on my laptop. I then installed itunes again. Now I want to restore my music from backup CD's. But the option device under file is greyed out. I can't select restore from backup. How do I make the restore option active? i have an IPOD nano.

I think it's QuickTime player causing the problem, when I try to open it I get the windows error that an error has occured
Let's try swapping out your QuickTime again, taking a few extra explicit precautions this time.
Head into your Add/Remove programs. uninstall QuickTime.
Next, we’ll manually remove any leftover program files and folders.
1. On the Start menu, click My Computer (or double-click My Computer on the Desktop).
2. In My Computer, open Local Disk.
3. Open Program Files.
4. Right-click on the QuickTime folder and click Delete from the shortcut menu.
5. Navigate to C:\Windows\system32\.
6. Remove the files QuickTime.qts and QuicktimeVR.qtx. (If “Hide filename extensions for known file types” is enabled on the PC, then those two files will appear as “QuickTime” and QuickTimeVR”.)
7. Restart your computer.
Now download and save a copy of the latest standalone QuickTime installer to your hard drive. (We'll run the install from there rather than online.)
Latest Quicktime Installers … get the one that doesn’t mention iTunes
Switch off antivirus and antispyware applications prior to the install. Start the install by doubleclicking the QuickTimeInstaller.exe.
If that install goes through okay, restart the PC and try launching iTunes again. Does your iTunes launch properly now?
(If you get an error message on the QuickTime uninstall or standalone reinstall, let us know what it says. Include error message numbers if you're getting any.)

Not able to create the NEW DC under the Track from NWDS

Hi All,
I have imported one Track to the NWDS. Now i am trying to create the new dc under the SC component which i have imported under the track.
When entered as
vendor: abc.com
name as: test_dc
click on next giving the following error.
syntax of abc.com/test is not valid:Invalid name: appropriate prefix not found; choose another name or another name server.
Any body tell me how to resolve this error.
Regards
Vijay

Hi Vijay,
Following can be done for Name Reservation:
1. Log on to the SLD.
2. Click on Name Reservation
3. Select "Development Component" in the Name Category
4. Click on button New Name Prefix
5. Add your prefix abc.com in the NAme Prefix field and Save.
You can also look at [this.|http://help.sap.com/saphelp_nw70/helpdata/EN/43/e9905fe1582d53e10000000a422035/frameset.htm]
Regards,
Alka.

Installing VISA USB device under Linux

Well, well, well... I've never though that such a time will come, but...
Linux. The question is about it.
It so happend that i need to install a custom made usb device under that OS. I've created the driver using NI-VISA driver development wizard and my device works fine under windows. But i don't know how to create a driver for Linux and how to install it there. Any ideas? Any???
www.xinstruments.com
Custom Software for Industrial Automation
www.hdrconverter.com
Picture processing made easy

Shawn B. wrote:
> It looks like you are running Mandriva 2006 (as opposed to 10.0). 
> The version of NI-KAL that shipped with NI-VISA 3.4 does not support
> Mandriva 2006.  The good news is you can download a newer version
> of NI-KAL that will install on Mandriva 2006 from:
>
> <a href="ftp://ftp.ni.com/support/kal/1.2/"
> target="_blank">ftp://ftp.ni.com/support/kal/1.2/</a>
>
> Install NI-KAL then run updateNIDrivers.
>
> Shawn B.
> National Instruments
This is not exactly an enlightening answer for a typical Linux user. I too
am having difficulty installing this under Debian Etch.
Linux distributions are made of components, the name on the label is a
little meaningless (in my years of experience with Linux, I am yet to find
a single program that will compile with one distro but not another, given
the same tools). So what components exactly does this driver depend upon ?
What am I missing here ? Is it my custom kernel (this is a Debian Etch
system) or some bug in the supplied drivers ?
The installer identified the following :
Checking required install tools...
Checking installer tool versions...
rpm 4.4.1 can be used with a default installation path
tar 1.15.1
Checking dependencies...
glibc 2.3.5
X /usr/X11R6/bin/X
Terminal /usr/X11R6/bin/xterm
Unpacking install files to /tmp/ni4882.install...
My error messages :
The following components, totalling 28444KB, have been selected
for installation:
LabVIEW 7.0 Run-Time Engine
NI-PAL
NI-KAL
NI-488.2 Help
NI-488.2 Utilities
NI-488.2 Driver
Continue? [Ynq] Y
* NI-KAL 1.0.0f0 for Linux/x86
This installer will install the NI software using the targz.
This software is covered by the included license file (LICENSE.txt).
By installing this software you are acknowledging acceptance of the
terms of the license.
The installation location for NI-KAL is /usr/local. A natinst/nikal
subdirectory will be created at the specified location.
Installing:
NI-KAL => /usr/local/natinst/nikal
Extracting /tmp/ni4882.install/kal/nikali-1.0.0-f0.tar.gz to /usr/local/...
Checking required tools...
Configuring for linux kernel version 2.6.14.3-raja.
********************************* NOTE *********************************
Using kernel headers found in /lib/modules/2.6.14.3-raja/source.
If this does not correspond to the location of the 2.6.14.3-raja headers,
then define KERNELHEADERS in your environment to point to the location
of the kernel headers, define KERNELTARGET as the version of the
kernel for which to compile, and then rerun ./configure.
********************************* NOTE *********************************
Kernel has reparent_to_init(): yes
Number of arguments for do_munmap(): 3
pte_offset function: pte_offset_kernel()
Number of arguments for remap_page_range(): 4
Kernel has get_user_pages(): yes
Kernel exports get_user_pages(): yes
USB altsetting name: cur_altsetting
Kernel has usb_get_intf(): yes
Kernel has intf_cache member in usb_host_config: yes
Kernel exports usb_set_configuration(): no
Kernel has usb_endpoint_running(): no
Storing configuration in Makefile.in
If the values stored are incorrect they can be changed before running make.
Installing Kernel module...
/bin/cp nikal.c objects/nikal.c
/bin/cp nikal.h objects/nikal.h
make -C /lib/modules/2.6.14.3-raja/source
SUBDIRS=/usr/local/natinst/nikal/src/objects modules
make[1]: Entering directory `/usr/src/linux-2.6.14.3'
CC [M] /usr/local/natinst/nikal/src/objects/nikal.o
In file included from /usr/local/natinst/nikal/src/objects/nikal.c:86:
/usr/local/natinst/nikal/src/objects/nikal.h:172: warning: 'packed'
attribute ignored
/usr/local/natinst/nikal/src/objects/nikal.c: In function
'nNIKAL100_vmaClose':
/usr/local/natinst/nikal/src/objects/nikal.c:196: sorry, unimplemen

How to setup the raw devices permissions permanantly in 11gr2 on RHEL 5.

Hi All,
Succesfully installed 11gr2 RAC and working fine , but in next boot raw devices permissions revert back to root .
Please advice me to how to setup permissions permanantly as the oracle user.
Regards
San
.

you find the lib on this page:
http://www.oracle.com/technetwork/topics/linux/downloads/rhel5-084877.html
in the AMD64 / Intel em64t Architecture table
this is the direct link
http://oss.oracle.com/projects/oracleasm/dist/files/RPMS/rhel5/amd64/2.0.5/2.6.18-194.el5/oracleasm-2.6.18-194.el5xen-2.0.5-1.el5.x86_64.rpm
hth
p.s. don't forget to mark question as helpful/correct and close the question.

ASM cannot find the raw devices nor ASM drives

Hi,
We are trying to use ASM on linux. The kernel version is
2.6.9-42.0.10.0.1.ELsmp x86_64.
We tried both raw devices and ASM drives. But after all the tries, the installer simply will not list the disks.
Anybody can help? Thanks.

"I had installed ASM initially on the same CRS, but due to some error during the installation"
This statement means: I had installed ASM on the clusterware, but due to time synchronization error, it didn't got copied on to the 2nd node, and hence I had to uninstall the ASM software.
But the clusterware is still up and running.
Amit.

What are the raw devices, CLI commands to take backup for raw devices

CLI commands to execute these using brtools for raw devices
1. Back up tablespace(s) online and offline using the BRBACKUP function util_file.
2. Back up tablespace(s) online using the BRBACKUP function util_file_online.
3.Back up offline redo log files using BRARCHIVE
please give reply
Thanks & Regards

Hi,
RAW devices is when you store your data directly on device.
It is like you use devices directly instead of data files on file system. Can give you some performance benefits.

Checking Raw devices on Linux box

How i can check raw device configured on Linux box?
Like System admin configured dev/raw/raw1 and dev/raw/raw2
how i can check this? With df command i am not seeing this...

Is it Ok for RAC or not
[oracle@test1 ~]$ sudo raw -qa
/dev/raw/raw1: bound to major 8, minor 1
/dev/raw/raw2: bound to major 8, minor 2
/dev/raw/raw3: bound to major 8, minor 3
[oracle@test2 ~]$ sudo raw -qa
/dev/raw/raw1: bound to major 8, minor 49
/dev/raw/raw2: bound to major 8, minor 50
/dev/raw/raw3: bound to major 8, minor 51

How do I get an Equium A110-233 to recognise the network card under Linux?

Hi,
I've just bought an Equium A110-233. I partitioned the hard disk so I've got XP and Fedora Core 5 (FC5).
XP works fine when I plug in the network cable, but FC5 (or at least the Linux kernel) does not seem to be able to find and activate the network card.
The message I get is "8139too device eth0 does not seem to be present, delaying initialization". The 8139too module is in memory as is mii (which points to it).
Somehow I need to get Linux to detect that the card is there, but I just don't know how to do that. Can anyone help?
Thanks.

Hi
As far as I know the notebook has a integrated Realtek Network I/F Chip RL8100CL.
I think you should googol around for the compatible LAN driver for Linux which supports this chip.
Unfortunately, on the Toshiba page you will not find any drivers for any Linux distribution because Toshiba doesnt support this OS. ;(

VISA do not find RAW device in linux??

Hy. I have usb device with product ID and vendor ID. My operational system is Linux Fedora. Linux system find my device,but Labview (VISA) do not find this device.Can somebody tell my, where is the problem??

Hello qwqwqw,
Dennis is correct, and that is the document you want to reference. Specifically, Part 4 is about USB on Linux and Mac. Officially though, National Instruments does not offer email or phone support for Linux Fedora.
Good luck with your application!
Meghan
Applications Engineer

How can I use the windows LookAndFeel under linux??

Some sample code would be great ;-)
Thanks a million,
Serano.

really ? amazing ....
I don�t like this "range agains MS" wave, but it is a ridiculous stuff.. to protect the visual aspect of a system ?!?
crazy world....
anyway, you may "simulate" the Windows look and feel, but I think it is much effort just to set a GUI visual aspect...
two forms of this "simulation":
1 - search in the SUN jars and get the file containing this L&F definitions, then change some classes name and create a new (fake) class defining the Win L&F
2 - create a theme class containing colors, borders and all other necessary stuff to simulate the Win L&F.
of course the second way is much more elegant (and honest :^) ) .. but, you know, when a big company plays a bad game,all other players may adopt the same behaviour :^)))
take a look in the MetalWorks example about how to create a customized theme (if you still motivated to use something like Windows L&F)
I�m a little bit shocked with this copryght restriction.... it doesn�t make sense...

Create the raw devices under Linux

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