system time

elainelaw · 04-27-2010, 01:44 AM

I have a debian server , want to know what is the hardware clock time
of it , I tried use hwclock , but not work , can advise what can i do ? thx

#hwclock
hwclock is unable to get I/O port access: the iopl(3) call failed.
Probably you need root privileges.

druuna · 04-27-2010, 01:49 AM

Hi,

First thing I norice: Probably you need root privileges.

You don't mention this, but did you try this as a normal user or as root user. It should be done as root.

Hope this helps.

linuxunix · 04-27-2010, 02:26 AM

Run the command through sudo user configured.
It will run without any issue.

elainelaw · 04-27-2010, 02:29 AM

Quote:

Originally Posted by druuna

Hi,

First thing I norice: Probably you need root privileges.

You don't mention this, but did you try this as a normal user or as root user. It should be done as root.

Hope this helps.

I use root user to do it already .

EricTRA · 04-27-2010, 02:34 AM

Hello elainelaw,

Is this on your own physical server or on a VPS? This kind of error happens mostly in virtual environment where hardware is 'shared'.

Kind regards,

Eric

elainelaw · 04-27-2010, 03:11 AM

thx replies,

this is not virtual machine .

EricTRA · 04-27-2010, 03:27 AM

Hi,

Can you try:

Code:

hwclock --directisa

and post the output here?

Kind regards,

Eric

elainelaw · 04-27-2010, 05:41 AM

Quote:

Originally Posted by EricTRA

Hi,

Can you try:

Code:

hwclock --directisa

and post the output here?

Kind regards,

Eric

thx , it works to show the time now , i tried to man hwclock , but do not find what is directisa ...

EricTRA · 04-27-2010, 05:48 AM

Hello,

This is what I found on the net:

Quote:

This option tells hwclock to use explicit I/O instructions to access the Hardware Clock. Without this option, hwclock will try to use the /dev/rtc device (which it assumes to be driven by the rtc device driver).

Can you tell us what kernel you're using?

Code:

uname -r

Kind regards,

Eric

onebuck · 04-27-2010, 07:49 AM

Hi,

Look at the online 'man hwclock';

Quote:

excerpt online 'man hwclock';

--directisa
is meaningful only on an ISA machine or an Alpha (which implements enough of ISA to be, roughly speaking, an ISA machine for hwclock's purposes). For other machines, it has no effect. This option tells hwclock to use explicit I/O instructions to access the Hardware Clock. Without this option, hwclock will try to use the /dev/rtc device (which it assumes to be driven by the rtc device driver). If it is unable to open the device (for read), it will use the explicit I/O instructions anyway.

The rtc device driver was new in Linux Release 2.

onebuck · 04-27-2010, 07:52 AM

Hi,

@elainelaw: You seem to be struggling with GNU/Linux. I've noticed a lot of recent posts. I suggest that you look at these useful links;

Linux Documentation Project
Rute Tutorial & Exposition
Linux Command Guide
Bash Reference Manual
Advanced Bash-Scripting Guide
Linux Newbie Admin Guide
LinuxSelfHelp
Getting Started with Linux

The above links and others can be found at 'Slackware-Links'. More than just Slackware® links!