From: PETER EASTHOPE on
Squeeze on an IBM NetVista here, was updated about 2010-01-27 via a remote
connection.  Nothing remarkable about the update.  Sunday morning I arrived to
find the machine rebooting repeatedly.  The console shows
  BIOS Installed Successfully!

  Grub loading.
  Welcome to GRUB!
Then the screen goes black and the machine proceeds to restart.

When booted to rescue mode from the Lenny installer CD update-grub, appears to run OK.
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