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I have tried rebooting multiple times to try to get to "Recovery" (GRUB 2) by holding down "SHIFT" during boot. I am waiting until BIOS screen completes. I need to reset the admin password because I forgot it.

Single Ubuntu boot; not dual. No Windows; one Linux partition.

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it needs to be the left shift key. sometimes pushing it repeatedly can insure that you don't miss the time window to get the grub menu to appear. – TrailRider Oct 26 '12 at 0:49
if all else fails there are answers here that tell you how to use a liveCD to reset, I will try to find one. – TrailRider Oct 26 '12 at 0:51
here is a detailed answer on how to use a LiveCd to reset your Admin password. – TrailRider Oct 26 '12 at 0:55
Just holding buttons to get into boot time options frequently does not work. You have to press them repeatedly, and at a savage rate, just when the bios post screens are coming to an end. – Bailey S Oct 26 '12 at 3:20

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