Hi John, others, Depends on the hardware. I assume you mean a PC; in that case, usually. Depends on what the manufacturer thought of. The old 486 at home gets it from the battery, which is a rechargeable. Old apricots had this weird diode thingy ... On sun boxen, it always comes from the battery. So you know when to get a new one :)
1) Yes except at boot time. However I think there is a re-sync after a while on some hardware, especially if you are running a time server. That would be cron'd in (but you might have to check which service is running it? Might not be root...) 2) Yes however our old 486 does weird things so that might not always be the case. My Athlon seems to keep the clock stable once powered up. I seem to recall reading somewhere in man hwclock that you can periodically reset it in case of drift. 3) No. Regards, Jill. -- Jill Rowling, Snr Des. Eng. & Unix System Administrator Eng. Systems Dept, Aristocrat Technologies Australia 3rd Floor, 77 Dunning Ave Rosebery NSW 2018 Phone: (02) 9697-4484 Fax: (02) 9663-1412 Email: [EMAIL PROTECTED] > -----Original Message----- > From: John Clarke [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, 30 October 2001 17:03 > To: [EMAIL PROTECTED] > Subject: Re: [SLUG] cron running some scheduled jobs twice > > > On Tue, Oct 30, 2001 at 04:36:06PM +1100, Jill Rowling wrote: > > > Flat battery? > > Thanks for the suggestion, but I don't think that's relevant for > several reasons: > > 1. The kernel maintains the system clock independently of the h/w > clock. > > 2. The machine is always on, and as far as I understand, the > h/w clock > is only read on startup. > > 3. Isn't the h/w clock powered from the battery only when the machine > is powered off? -- ---------------------- CONFIDENTIALITY NOTICE ---------------------- This email is intended only to be read or used by the addressee. The information contained in this e-mail message may be confidential information. If you are not the intended recipient, any use, interference with, distribution, disclosure or copying of this material is unauthorised and prohibited. Confidentiality attached to this communication is not waived or lost by reason of the mistaken delivery to you. If you have received this message in error, please delete it and notify us by return e-mail or telephone Aristocrat Technologies Australia Pty Limited on +61 2 9413 6300. -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
