GRUB Stage1.5 Stage2

GRUB Stage1.5 Stage2

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A
Stage1.5
Stage2
1 Filename must be either an absolute filename or blocklist
T h i s e r r o r i s r e t u r n e d i f a f i l e n a m e i s r e q u e s t e d w h i c h
d o e s n ' t f i t t h e s y n t a x / r u l e s l i s t e d i n t h e F i l e s y s t e m .
2 Bad file or directory type
T h i s e r r o r i s r e t u r n e d i f a f i l e r e q u e s t e d i s n o t a r e g u l a r
f i l e , b u t s o m e t h i n g l i k e a s y m b o l i c l i n k , d i r e c t o r y , o r F I F O .
3 Bad or corrupt data while decompressing file
T h i s e r r o r i s r e t u r n e d i f t h e r u n - l e n g t h d e c o m p r e s s i o n c o d e
g e t s a n i n t e r n a l e r r o r . T h i s i s u s u a l l y f r o m a c o r r u p t f i l e .
4 Bad or incompatible header in compressed file
This error is returned if the file header for a supposedly compressed file is bad.
5 Partition table invalid or corrupt
GRUB Stage1.5
Stage2
T h i s e r r o r i s r e t u r n e d i f t h e s a n i t y c h e c k s o n t h e
i n t e g r i t y o f t h e p a r t i t i o n t a b l e f a i l . T h i s i s a b a d s i g n .
Partition table
6 Mismatched or corrupt version of stage1/stage2
This error is returned if the install command points to incompatible or corrupt
versions of the stage1 or stage2. It can't detect corruption in general, but
this is a sanity check on the version numbers, which should be correct.
stage1stage2
7 Loading below 1MB is not supported
T h i s e r r o r i s r e t u r n e d i f t h e l o w e s t a d d r e s s i n a k e r n e l i s b e l o w t h e
1 M B b o u n d a r y. T h e L i n u x z I m a g e f o r m a t i s a s p e c i a l c a s e a n d c a n
b e h a n d l e d s i n c e i t h a s a f i x e d l o a d i n g a d d r e s s a n d m a x i m u m s i z e .
zimagekernel1MB
2

AGRUB Stage1.5
Linux
Stage1.5
Stage2
8 Kernel must be loaded before booting
T h i s e r r o r i s r e t u r n e d i f G R U B i s t o l d t o e x e c u t e
t h e b o o t s e q u e n c e w i t h o u t h a v i n g a k e r n e l t o s t a r t .
kernel
9 Unknown boot failure
This error is returned if the boot attempt did not succeed for reasons which are unknown.
10 Unsupported Multiboot features requested
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This error is returned when the Multiboot features word in the Multiboot
header requires a feature that is not recognized. The point of this is that the
kernel requires special handling which GRUB is probably unable to provide.
11 Unrecognized device string
T h i s e r r o r i s r e t u r n e d i f a d e v i c e s t r i n g w a s e x p e c t e d , a n d t h e s t r i n g
e n c o u n t e r e d d i d n ' t f i t t h e s y n t a x / r u l e s l i s t e d i n t h e F i l e s y s t e m .
12 Invalid device requested
T h i s e r r o r i s r e t u r n e d i f a d e v i c e s t r i n g i s r e c o g n i z a b l e
b u t d o e s n o t f a l l u n d e r t h e o t h e r d e v i c e e r r o r s .
13 Invalid or unsupported executable format
This error is returned if the kernel image being loaded is not recognized as Multiboot or
one of the supported native formats (Linux zImage or bzImage, FreeBSD, or NetBSD).
Kernel
Stage2
14 Filesystem compatibility error, cannot read whole file
Some of the filesystem reading code in GRUB has limits on the length of the
files it can read. This error is returned when the user runs into such a limit.
GRUB
3

06
Stage1.5
15 File not found
Stage2
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09
A
GRUB Stage1.5
T h i s e r r o r i s r e t u r n e d i f t h e s p e c i f i e d f i l e n a m e c a n n o t b e
f o u n d , b u t e v e r y t h i n g e l s e ( l i k e t h e d i s k / p a r t i t i o n i n f o ) i s O K .
16 Inconsistent filesystem structure
This error is returned by the filesystem code to denote an internal error caused by the
sanity checks of the filesystem structure on disk not matching what it expects. This
is usually caused by a corrupt filesystem or bugs in the code handling it in GRUB.
GRUB
17 Cannot mount selected partition
T h i s e r r o r i s r e t u r n e d i f t h e p a r t i t i o n r e q u e s t e d e x i s t s ,
b u t t h e f i l e s y s t e m t y p e c a n n o t b e r e c o g n i z e d b y G R U B .
GRUB
18 Selected cylinder exceeds maximum supported by BIOS
This error is returned when a read is attempted at a linear block address beyond the end
of the BIOS translated area. This generally happens if your disk is larger than the BIOS
can handle (512MB for (E)IDE disks on older machines or larger than 8GB in general).
BIOS
Stage2
19 Linux kernel must be loaded before initrd
This error is returned if the initrd command is used before loading a Linux kernel.
Kernelinitrd
20 Multiboot kernel must be loaded before modules
This error is returned if the module load command is used before loading a Multiboot
kernel. It only makes sense in this case anyway, as GRUB has no idea how to
communicate the presence of such modules to a non-Multiboot-aware kernel.
Kernel
4

AGRUB Stage1.5
Linux
Stage1.5
21 Selected disk does not exist
Stage2
06
This error is returned if the device part of a device- or full file name refers to a disk
or BIOS device that is not present or not recognized by the BIOS in the system.
BIOS
22 No such partition
T h i s e r r o r i s r e t u r n e d i f a p a r t i t i o n i s r e q u e s t e d i n t h e d e v i c e p a r t
o f a d e v i c e - o r f u l l f i l e n a m e w h i c h i s n ' t o n t h e s e l e c t e d d i s k .
23 Error while parsing number
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This error is returned if GRUB was expecting to read a number and encountered bad data.
GRUB
24 Attempt to access block outside partition
T h i s e r r o r i s r e t u r n e d i f a l i n e a r b l o c k a d d r e s s i s o u t s i d e o f t h e d i s k
partition. This generally happens because of a corrupt filesystem on the
disk or a bug in the code handling it in GRUB (it's a great debugging tool).
LBAGRUB
25 Disk read error
T h i s e r r o r i s r e t u r n e d i f t h e r e i s a d i s k r e a d e r r o r w h e n
t r y i n g t o p r o b e o r r e a d d a t a f r o m a p a r t i c u l a r d i s k .
26 Too many symbolic links
T h i s e r r o r i s r e t u r n e d i f t h e l i n k c o u n t i s b e y o n d t h e m a x i m u m
( c u r r e n t l y 5 ) , p o s s i b l y t h e s y m b o l i c l i n k s a r e l o o p e d .
(5)
Stage2
27 Unrecognized command
This error is returned if an unrecognized command is entered on the commandline
or in a boot sequence section of a configuration file and that entry is selected.
command-line
5

GRUB Stage1.5
06
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09
A
Stage1.5
Stage2
28 Selected item cannot fit into memory
This error is returned if a kernel, module, or raw file load command is either
trying to load its data such that it won't fit into memory or it is simply too big.
kernelraw
29 Disk write error
This error is returned if there is a disk write error when trying to write to a particular
disk. This would generally only occur during an install of set active partition command.
30 Invalid argument
This error is returned if an argument specified to a command is invalid.
31 File is not sector aligned
This error may occur only when you access a ReiserFS partition by block-lists (e.g. the
command install). In this case, you should mount the partition with the `-o notail' option.
ReiserFS-o
notail
32 Must be authenticated
Stage2
T h i s e r r o r i s r e t u r n e d i f y o u t r y t o r u n a l o c k e d e n t r y . Y o u
s h o u l d e n t e r a c o r r e c t p a s s w o r d b e f o r e r u n n i n g s u c h a n e n t r y .
33 Serial device not configured
T h i s e r r o r i s r e t u r n e d i f y o u t r y t o c h a n g e y o u r t e r m i n a l
t o a s e r i a l o n e b e f o r e i n i t i a l i z i n g a n y s e r i a l d e v i c e .
com1com port
34 No spare sectors on the disk
This error is returned if a disk doesn't have enough spare space. This happens
when you try to embed Stage 1.5 into the unused sectors after the MBR,
but the first partition starts right after the MBR or they are used by EZ-BIOS.
stage1.5MBR
EZ-BIOS
6