05-08-2006
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello there,
I have a very basic question. It is so simple to find out all the information about system in windows environment. But I do not see any easy way to find it out in my Unix (Solaris 8) box.
All I want to find out how much RAM I have in my solaris 8 box.
Is there any command?
... (3 Replies)
Discussion started by: malikabid
3 Replies
2. Programming
Sir,
How can i get the RAM size .Is there is any predefined function ..Howsir???
Thanks In advance,
ArunKumar (6 Replies)
Discussion started by: arunkumar_mca
6 Replies
3. UNIX for Advanced & Expert Users
Hi all,
I am using Sun Solaris 9 .In this system normal users unable to create files from the command line.I added these users in bin,adm and even root group i found them unable to create a file. (1 Reply)
Discussion started by: mallesh
1 Replies
4. Shell Programming and Scripting
Hi Gurus,
Can someone let me know how to find the RAM size,ROM size and Number of processors for a linux server.
Version :Linux 2.4.9-e.57smp
Also what does "e.57smp" stands for?
Thanks in advance gurus.....
cheers. (3 Replies)
Discussion started by: navojit dutta
3 Replies
5. AIX
When we as normal user try to login, the session startup terminates and we are presented with the login screen.The root user is able to login without any problem.I can log in to the Aix server as normal user through telnet & using xmanager but not directly through server terminal .The Aix version... (1 Reply)
Discussion started by: ranadeep
1 Replies
6. Shell Programming and Scripting
Hi All
I have written one shell script for GPRS route add is given below named GPRSRouteSet.sh
URL="www.google.com"
VBURL="10.5.2.211"
echo "Setting route for $URL for GPRS"
URL_Address=`nslookup $URL|grep Address:|grep -v "#"|awk -F " " '{print $2}'|head -1`
echo "Executing ... (3 Replies)
Discussion started by: mnmonu
3 Replies
7. Shell Programming and Scripting
Hi All,
I am writing a script in which i need find the total size of all the directories that are present in a directory which are owned by a particular user.
I will explain in details
i have a dir DIR1 in which i have 5 dir's DIRA DIRB DIRC DIRD DIRE.
DIRA DIRC DIRE are owned by "eswar" i... (2 Replies)
Discussion started by: firestar
2 Replies
8. Solaris
:confused: I installed latest version of java ( jre 1.6) on Solaris Machine ......when I run java -version as root, shows the latest version but when I run java -version as normal user, shows the old / previous version
What should I do to fix this ...should show the latest version... (3 Replies)
Discussion started by: frintocf
3 Replies
9. UNIX for Dummies Questions & Answers
Whenever i switch from root to another user, by doing su - user, it takes me to home directory of user. This is very annoying as i want to be in same dir to run different commands as root sometimes and sometimes as normal user.
How to fix this? (1 Reply)
Discussion started by: syncmaster
1 Replies
10. AIX
Hi,
I need to grant read permission to a normal user on sulog file on AIX 6.1.
As root I did acledit sulog and aclget shows "extended permissions" as "enabled" and normal user "splunk" has read permissions. When I try to access sulog as splunk user it won't allow and aclget for splunk user... (6 Replies)
Discussion started by: prvnrk
6 Replies
RDEV(8) Linux Programmer's Manual RDEV(8)
NAME
rdev - query/set image root device, RAM disk size, or video mode
SYNOPSIS
rdev [ -rvh ] [ -o offset ] [ image [ value [ offset ] ] ]
rdev [ -o offset ] [ image [ root_device [ offset ] ] ]
ramsize [ -o offset ] [ image [ size [ offset ] ] ]
vidmode [ -o offset ] [ image [ mode [ offset ] ] ]
rootflags [ -o offset ] [ image [ flags [ offset ] ] ]
DESCRIPTION
With no arguments, rdev outputs an /etc/mtab line for the current root file system. With no arguments, ramsize, vidmode, and rootflags
print usage information.
In a bootable image for the Linux kernel on i386, there are several pairs of bytes which specify the root device, the video mode, and the
size of the RAM disk. These pairs of bytes, by default, begin at offset 504 (decimal) in the kernel image:
498 Root flags
(500 and 502 Reserved)
504 RAM Disk Size
506 VGA Mode
508 Root Device
(510 Boot Signature)
rdev will change these values.
Typical values for the image parameter, which is a bootable Linux kernel image, might be:
/vmlinux
/vmunix
/boot/bzImage-2.4.0
/dev/fd0
/dev/fd1
When using the rdev command, the root_device parameter might be something like:
/dev/hda1
/dev/hdf13
/dev/sda2
/dev/sdc4
/dev/ida/c0d0p1
One may also specify the device by a comma-separated pair of decimal integers major,minor.
For the ramsize command, the size parameter specifies the size of the RAM disk in kilobytes.
For the rootflags command, the flags parameter contains extra information used when mounting root. Currently the only effect of these
flags is to force the kernel to mount the root filesystem in readonly mode if flags is non-zero.
For the vidmode command, the mode parameter specifies the video mode:
-3 = Prompt
-2 = Extended VGA
-1 = Normal VGA
0 = as if "0" was pressed at the prompt
1 = as if "1" was pressed at the prompt
2 = as if "2" was pressed at the prompt
n = as if "n" was pressed at the prompt
If the value is not specified, the image will be examined to determine the current settings.
OPTIONS
-r Causes rdev to act like ramsize.
-R Causes rdev to act like rootflags.
-v Causes rdev to act like vidmode.
-h Provides help.
BUGS
The rdev utility, when used other than to find a name for the current root device, is an ancient hack that works by patching a kernel image
at a magic offset with magic numbers. It does not work on architectures other than i386. Its use is strongly discouraged. Use a boot
loader like SysLinux or LILO instead.
HISTORY
At offset 502 there used to be the device number of the swap device (in Linux 0.12), and "rdev -s" or "swapdev" would set this. However,
since Linux 0.95 this constant is not used any longer, and the swap device is specified using the swapon() system call.
AUTHORS
Originally by Werner Almesberger (almesber@nessie.cs.id.ethz.ch)
Modified by Peter MacDonald (pmacdona@sanjuan.UVic.CA)
rootflags support added by Stephen Tweedie (sct@dcs.ed.ac.uk)
Linux 0.99 20 November 1993 RDEV(8)