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nandelbosc
Guru
Joined: 29 Sep 2004
Posts: 350
Location: olot
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 Posted: Mon Sep 18, 2006 12:36 am Post subject: Preserve uptime? |
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Possibly it's a stupid question but...
is possible preserve uptime?
I have a server with 300 days of uptime, I need to reboot it now to build a new kernel. |
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yabbadabbadont
Advocate
Joined: 14 Mar 2003
Posts: 4791
Location: 2 exits past crazy
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| Posted: Mon Sep 18, 2006 4:09 am Post subject: |
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Sorry but, by definition, uptime is how long the system has been up without a reboot....
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Headrush
Watchman
Joined: 06 Nov 2003
Posts: 5597
Location: Bizarro World
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| Posted: Mon Sep 18, 2006 4:26 am Post subject: |
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Ya, no cheating! 
This raises a curious question: if you use kexec to change running kernels, does this reset the uptime? (basically is uptime for the machine, or the running kernel) |
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NoControl
n00b
Joined: 06 Apr 2004
Posts: 74
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| Posted: Mon Sep 18, 2006 4:30 am Post subject: |
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| Headrush wrote: | Ya, no cheating!
This raises a curious question: if you use kexec to change running kernels, does this reset the uptime? (basically is uptime for the machine, or the running kernel) |
No certainty from me, but I think uptime is a counter incremented each second by the kernel, and so when you start a new kernel, the uptime is reset, too. |
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nandelbosc
Guru
Joined: 29 Sep 2004
Posts: 350
Location: olot
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| Posted: Tue Sep 19, 2006 12:55 am Post subject: |
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| Quote: | | Sorry but, by definition, uptime is how long the system has been up without a reboot.... |
True, but I hear it's possible hack.
For me it's only a pleasure of don't view breaked this personal record  |
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oxEz
Tux's lil' helper
Joined: 18 May 2004
Posts: 115
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| Posted: Wed Sep 20, 2006 4:33 am Post subject: |
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This would be an ego boost, isn't it?  |
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Genone
Retired Dev
Joined: 14 Mar 2003
Posts: 9523
Location: beyond the rim
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| Posted: Wed Sep 20, 2006 10:13 am Post subject: |
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| Well, you can change the start value by hacking the kernel. |
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batfoot
Apprentice
Joined: 26 Jul 2004
Posts: 197
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| Posted: Wed Sep 20, 2006 10:45 am Post subject: |
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Nice, I tried to do this a while ago but couldn't figure it out.
Funny though, I'm glad I'm not the only one trying to defeat the purpose of uptime  |
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nephros
Advocate
Joined: 07 Feb 2003
Posts: 2139
Location: Graz, Austria (Europe - no kangaroos.)
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| Posted: Wed Sep 20, 2006 8:05 pm Post subject: |
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See sig.
While it's not faked, it's not from my system either (rather from one of the sun boxes at $ORKPLACE).
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tomk
Bodhisattva
Joined: 23 Sep 2003
Posts: 7221
Location: Sat in front of my computer
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| Posted: Wed Sep 20, 2006 8:18 pm Post subject: |
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You could try out app-misc/uptimed, it doesn't preserve your uptime but it does keep track of your highest uptimes.
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nandelbosc
Guru
Joined: 29 Sep 2004
Posts: 350
Location: olot
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| Posted: Thu Sep 21, 2006 1:40 am Post subject: |
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| Quote: | | You could try out app-misc/uptimed, it doesn't preserve your uptime but it does keep track of your highest uptimes. |
mmm... I like this application. I try it soon. Thank's! |
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