linux changes cmos clock back to last logon

Bryan Sparks · 01-14-2007, 06:19 PM

Hi Everyone,

I Dual boot a system with Windows ME and recently with no problems until recently when Linux keeps changing the System CMOS clock winding it back to when I last logged on to linux.

I can change the Date/Time using Yast and Date --set, everythings ok until I shut down and the next day start up and boot into linux.

If I choose dos/me the date and time is correct but if I boot into Linux (which is my preferred OS) the date/time seems to go back to the time that I logged off Linux.

I did play around with the Date Command and may have upset the system???
A linux newbee...
Bryan.

stress_junkie · 01-14-2007, 09:16 PM

This kind of problem can be at the system level or at the user level. In order to determine where the problem lies I recommend that you create a new user account and log on to that account. Check to see if the time is messed up in that new user account. If it is then the problem is at the system level. If the time is correct with the new user account then you know that the problem is in the user configuration files.

Bryan Sparks · 01-24-2007, 06:34 PM

My cmos problem is at systems level.
Linux sees the system time clock and starts logging the boot process:

Boot logging started on /dev/tty1(/dev/console) at Thu Jan 25 00:09:33 2007

The problem starts when the OS starts to set the system time clock
<notice>run boot scripts (boot.clock)
Setting up the CMOS clockdone
<notice>exit status of (boot.clock) is (0)
<notice>run boot scripts (boot.ldconfig)
Setting up timezone datadone
INIT: Entering runlevel: 1

Boot logging started on /dev/tty1(/dev/console) at Thu Jan 18 01:18:28 2007

the above is taken from /var/log/boot.msg.

I had set the system time by entering the cmos setup before any OS was loaded. If I booted into dos/win9x the time would remain ok!!!

I may have upset boot.clock by playing around with the date command.

Any Ideas???

Bryan.

Bryan Sparks · 02-01-2007, 07:20 PM

I got my cmos clock back on track again.

The Solution is to delete the file ect/adjtime and then run the Date command to set the time and date.

This is my /etc/adjtime file now:

0.069434 1170358511 0.000000
1170358511
LOCAL

This was the "bad" file that caused all my grief.

-39546.144228 1170065107 0.000000
1170063544
LOCAL