> ALERT! /dev/sdb1 does not exist Dropping to a shell! <<< NOW IS /dev/sda1
This is a "consistent mapping of device names for disk drives" problem. The disk drive is mapped as sdb during the installation step but sda when the real system boots up. I suggest you switch to VT2 at the very end of the installation process and then edit /target/boot/grub/menu.lst manually to replace occurrences of sdb by sda there.....then reboot. ("nano" can be used to edit text files in the installer console)
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