Why "wakealarm" file cannot be edited without UTC option ?
Issue
- Cannot edit
wakealarmfile with command : echodate '+%s' -d '+3minutes'> /sys/class/rtc/rtc0/wakealarm and does not show the edit time. - But if used
+3minutes utc, can edit wakealarm success and shows the edit time in the wakealarm file - When change timezone to
CST(China Beijing)has this problem, if change it to America there is no issue. - User can not edit
wakealarmto enable rtc alarm function.
Environment
Red Hat Enterprise Linux 7.1
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