no output for hwclock on RHEL4

[Leonard C.]

DL380G4 server including RedHat Enterprise Linux4

There is no output for hwclock command
syslog:
kernel: set_rtc_mmss: can't update from 49 to 2

Any idea?

[J. Maestre]

Not even with --debug? Does the /dev/rtc device exist?

[Leonard C.]

rtc file already exists.

hwclock --debug :

hwclock from util-linux-2.11y
hwclock: Open of /dev/rtc failed, errno=16: Device or resource busy.
Using direct I/O instructions to ISA clock.
Last drift adjustment done at 1262431702 seconds after 1969
Last calibration done at 1262431702 seconds after 1969
Hardware clock is on local time
Assuming hardware clock is kept in local time.
Waiting for clock tick...
...got clock tick

[J. Maestre]

The directISA method seems to work then. Check if /dev/rtc is being used (maybe locked) by some other process:

fuser /dev/rtc

Also check if there are updates available for the util-linux package. There were some hwclock related issues in the 2.11 and 2.12 versions.

Besides the hwclock problem, is your clock actually drifting?

[Steven E. Protter]

Shalom,

System needs a update to current update.

Also boot it and make sure the hardware clock is working.

SEP