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The general way that the Stage 1 handles errors is to print an error
string and then halt. Pressing CTRL-ALT-DEL will
reboot.
The following is a comprehensive list of error messages for the Stage 1:
- Hard Disk Error
-
The stage2 or stage1.5 is being read from a hard disk, and the attempt
to determine the size and geometry of the hard disk failed.
- Floppy Error
-
The stage2 or stage1.5 is being read from a floppy disk, and the attempt
to determine the size and geometry of the floppy disk failed. It's listed
as a separate error since the probe sequence is different than for hard
disks.
- Read Error
-
A disk read error happened while trying to read the stage2 or stage1.5.
- Geom Error
-
The location of the stage2 or stage1.5 is not in the portion of the disk
supported directly by the BIOS read calls. This could occur because the
BIOS translated geometry has been changed by the user or the disk is
moved to another machine or controller after installation, or GRUB was
not installed using itself (if it was, the Stage 2 version of this error
would have been seen during that process and it would not have completed
the install).
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