LinuxQuestions.org
Review your favorite Linux distribution.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices

Reply
 
Search this Thread
Old 01-30-2013, 12:03 AM   #1
zh1599512
LQ Newbie
 
Registered: Jan 2013
Posts: 2

Rep: Reputation: Disabled
Unhappy hwclock did not work!


Hello All!

When I got a new kernel 2.6.32.60 on a centos x86_64 ,hwclock did not work!

when got the machine start.

it remind that:

hwclock: Cannot access the Hardware Clock via any known method.
hwclock: Use the --debug option to see the details of our search for an access method.

hwclock --debug

hwclock from util-linux-2.13-pre7
hwclock: Open of /dev/rtc failed, errno=19
No usable clock interface found.
Cannot access the Hardware Clock via any known method.

ll /dev/rtc*

crw------- 1 root root 10, 135 01-30 22:46 /dev/rtc
crw------- 1 root root 250, 0 01-30 22:46 /dev/rtc0

but when replaced the hwclock with the system x86's hwclock,it works ,and has no warning message!


is it a bug ?
how to sove it?

Last edited by zh1599512; 01-30-2013 at 05:31 AM.
 
Old 01-30-2013, 04:52 AM   #2
linosaurusroot
Member
 
Registered: Oct 2012
Distribution: OpenSuSE,RHEL,Fedora,OpenBSD
Posts: 775
Blog Entries: 2

Rep: Reputation: 199Reputation: 199
What did the --debug option show you?
 
Old 01-30-2013, 05:31 AM   #3
zh1599512
LQ Newbie
 
Registered: Jan 2013
Posts: 2

Original Poster
Rep: Reputation: Disabled
Quote:
Originally Posted by linosaurusroot View Post
What did the --debug option show you?
hwclock --debug

hwclock from util-linux-2.13-pre7
hwclock: Open of /dev/rtc failed, errno=19
No usable clock interface found.
Cannot access the Hardware Clock via any known method.

ll /dev/rtc*

crw------- 1 root root 10, 135 01-30 22:46 /dev/rtc
crw------- 1 root root 250, 0 01-30 22:46 /dev/rtc0

but when replaced the hwclock with the system x86's hwclock,it works ,and has no warning message!


is it a bug ?
how to sove it?
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
[SOLVED] hwclock mreff555 Linux - Hardware 4 09-26-2012 09:59 PM
#$%@! hwclock and everyone in it mk27 Linux - General 7 03-18-2009 11:52 PM
regarding hwclock davender84 Linux - General 2 03-14-2009 02:38 PM
hwclock alaios Linux - General 1 11-02-2004 08:40 AM
hwclock - HTS Linux - Software 4 10-28-2004 02:21 AM


All times are GMT -5. The time now is 10:57 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration