It`s obviously been a while since i had any third party repo`s added ....
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I`m actually on a Desktop up at our flat just now(i`m re-decorating it...honest) which i`ve not even used since it was upgraded to 9.10.
Also plenty unsupported stuff now of course.
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15 min`s to go still although there`s a USB stick handy, just in case.
I aint messing around with this thing. A clean install from USB would have probably been quicker in fact but no harm in doing the upgrade just to see.
EDIT:
Ok. so it was 15 minutes for the 1600 odd packages to download......and 2 hours for the upgrade itself to complete. :-)
This is on an old P4(ht) with 768MB of memory. My Desktop down at the house does an upgrade in less than hour usually although to be honest i cant remember the last time i sat watching an upgrade. I`ve often just started them off when i`m going to bed/work/whatever.
A clean install from usb, with updates, driveR, currently installed apps and of course any personal preferences would take about 30 minutes. Even installing from cd wouldn`t be too much longer.