GRUB error messages

Products

• XOS

Issue/Introduction

GRUB returns a numerical error message on CPM boot failure. This article provides a short reference of GRUB 0.9 Stage 2 error messages.GRUB returns a numerical error message on CPM boot failure. This article provides a short reference of GRUB 0.9 Stage 2 error messages.

Cause

All recent XOS releases (including XOS V10.0) use GRUB 0.91 as the CPM boot loader. The GRUB version 0.9x has been called "GRUB Legacy" since GNU introduced GRUB 2.0.

Resolution

When troubleshooting CPM disk boot issues, GRUB may report a numerical error message on the CPM console port. The full description of the error should be looked up in the "GRUB Legacy" manual at GNU website (see the URL in the reference section).

The following table lists GRUB 0.9x Stage 2 errors with short description for a quick reference.
 

Errors reported by the Stage 2:

Error	Short description
1	Filename must be either an absolute filename or blocklist
2	Bad file or directory type
3	Bad or corrupt data while decompressing file
4	Bad or incompatible header in compressed file
5	Partition table invalid or corrupt
6	Mismatched or corrupt version of stage1/stage2
7	Loading below 1MB is not supported
8	Kernel must be loaded before booting
9	Unknown boot failure
10	Unsupported Multiboot features requested
11	Unrecognized device string
12	Invalid device requested
13	Invalid or unsupported executable format
14	Filesystem compatibility error, cannot read whole file
15	File not found
16	Inconsistent filesystem structure
17	Cannot mount selected partition
18	Selected cylinder exceeds maximum supported by BIOS
19	Linux kernel must be loaded before initrd
20	Multiboot kernel must be loaded before modules
21	Selected disk does not exist
22	No such partition
23	Error while parsing number
24	Attempt to access block outside partition
25	Disk read error
26	Too many symbolic links
27	Unrecognized command
28	Selected item cannot fit into memory
29	Disk write error
30	Invalid argument
31	File is not sector aligned
32	Must be authenticated
33	Serial device not configured
34	No spare sectors on the disk

Workaround

N/A