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Strange power outage

Message #1 - Posted 2004/12/21 - Conrad Weiler

Hi,

Strange occurrence in Camp Sherman this morning. I was downloading OS 10.3.7 upgrade from Apple at about 5:30 a.m. when the power went off. I was about half through the 93.7 MB download when this outage occurred. No lights, no power, but the download continued unabated on my iBook G4 (using battery power). I was a little surprised because the power was off to the DSL router/wireless modem. Nonetheless, the entire download continued until finished. I lit the iBook keyboard with my iLight using USB plug-in for power.

That was a learning experience -- that the DSL/phone download would complete even if DSL power was lost. The phone uses very low energy and works in power outages but now I know the DSL will complete a partial download even if power is lost.

After downloading the OS upgrade -- you have to do a restart to load the upgrade. After doing this -- the DSL (with no power) would not let me connect with the Internet.

OS 10.3.7 is now loaded and working well.

Also, the power is back on in Camp Sherman.

Happy holidays,

Conrad
Conrad Weiler
Camp Sherman, Oregon

Message #2 - Posted 2004/12/21 - matt neuburg

Conrad Weiler wrote:

Strange occurrence in Camp Sherman this morning. I was downloading OS 10.3.7 upgrade from Apple at about 5:30 a.m. when the power went off. I was about half through the 93.7 MB download when this outage occurred. No lights, no power, but the download continued unabated on my iBook G4 (using battery power). I was a little surprised because the power was off to the DSL router/wireless modem. Nonetheless, the entire download continued until finished.

My guess is that this never happened. If you use Software Update, the thermometer displays two things: first, it displays the activity while the download takes place; then, it displays the activity while the installation takes place. It divides these up so that the division between these two activities occurs at the halfway point of the thermometer. So, you say you were "about half through the download". I think you were *completely* through the download. What you saw after the power went off was the installation taking place - and for that, no DSL connection was needed. m.

matt neuburg, phd = matt@tidbits.com, http://www.tidbits.com/matt/ AppleScript: The Definitive Guide
http://www.amazon.com/exec/obidos/ASIN/0596005571/somethingsbymatt Read TidBITS! It's free and smart. http://www.tidbits.com

Message #3 - Posted 2004/12/21 - Cathy Stevenson

Previously, matt neuburg wrote:

Conrad Weiler wrote:

Strange occurrence in Camp Sherman this morning. I was downloading OS 10.3.7 upgrade from Apple at about 5:30 a.m. when the power went off. I was about half through the 93.7 MB download when this outage occurred. No lights, no power, but the download continued unabated on my iBook G4 (using battery power). I was a little surprised because the power was off to the DSL router/wireless modem. Nonetheless, the entire download continued until finished.

My guess is that this never happened. If you use Software Update, the thermometer displays two things: first, it displays the activity while the download takes place; then, it displays the activity while the installation takes place. It divides these up so that the division between these two activities occurs at the halfway point of the thermometer. So, you say you were "about half through the download". I think you were *completely* through the download. What you saw after the power went off was the installation taking place - and for that, no DSL connection was needed. m.

That has to be what happened. It also explains why the iBook needed a restart "to load" the update - it was the usual restart required to complete the installation.

Cathy

"there's a dance or two in the old dame yet." - mehitabel

C.Stevenson, M.D.
cats1921@invalidsonic.net

Message #4 - Posted 2004/12/21 - Pete Stephenson

Previously, Conrad Weiler wrote:

That was a learning experience -- that the DSL/phone download would complete even if DSL power was lost. The phone uses very low energy and works in power outages but now I know the DSL will complete a partial download even if power is lost.

*shrugs* I have a fairly beefy UPS feeding my desk (my G5, my Cobalt RaQ3, DSL modem, switch, VoIP box, etc. As long as there's current on the line (and the phone company has beefy batteries/generators to maintain that), I'll be fine.

Of course, once the UPS runs low, I have a little Honda generator fueled and ready to go with some extension cords. If I'm good, I can get it running within about 5 minutes after the power fails. The UPS runs for about 40, so I'm happy. :)

That said, Matt's explanation about having already downloaded the file and the iBook simply installing it is much more likely in your case.

Pete Stephenson
HeyPete.com

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