Grub Boot Error Codes
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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 grub manual Disk Error" This error message will occur if the Stage 2 or Stage
Grub Commands
1.5 is being read from a hard disk, and the attempt to determine the size and geometry of the hard grub command line boot disk fails. "Floppy Error" This error message will occur if the Stage 2 or Stage 1.5 is being read from a floppy disk, and the attempt to determine the size and geometry of
Grub Error Windows 7
the floppy disk fails. It's listed as a different error since the probe sequence is different than for hard disks. "Read Error" This error message will occur if a disk read error happens while trying to read the Stage 2 or Stage 1.5. "Geom Error" This error message will occur if the location of the Stage 2 or Stage 1.5 is not in the area supported by grub error 15 reading the disk with the BIOS directly. 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). Errors Reported by the Stage 1.5 The general way that the Stage 1.5 handles errors is to print an error number in the form "Error: " and then halt. Pressing Ctrl-Alt-Del will reboot. The error numbers correspond to the Errors Reported by the Stage 2 in the listed sequence. Errors Reported by the Stage 2 The general way that the Stage 2 handles errors is to abort the operation in question, print an error string, then (if possible) either continue based on the fact that an error occurred or wait for the user to deal with the error. The following is a comprehensive list of error messages for the Stage 2 (error numbers for the Stage 1.5 are listed before the colon in each description): 1 : "Selected item won't fi
the fact that an error occurred or wait for the user to deal with the error. The following is a comprehensive list of error messages for the Stage 2 (error numbers for the Stage 1.5 are
Grub2
listed before the colon in each description): 1 : Filename must be either an absolute
Grub Error 22
filename or blocklistThis error is returned if a file name is requested which doesn't fit the syntax/rules listed in the Filesystem. grub-install 2 : Bad file or directory typeThis error is returned if a file requested is not a regular file, but something like a symbolic link, directory, or FIFO. 3 : Bad or corrupt data while decompressing http://www.uruk.org/orig-grub/errors.html fileThis error is returned if the run-length decompression code gets an internal error. This is usually from a corrupt file. 4 : Bad or incompatible header in compressed fileThis error is returned if the file header for a supposedly compressed file is bad. 5 : Partition table invalid or corruptThis error is returned if the sanity checks on the integrity of the partition table fail. This is a bad sign. 6 : Mismatched https://www.gnu.org/software/grub/manual/legacy/Stage2-errors.html or corrupt version of stage1/stage2This 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. 7 : Loading below 1MB is not supportedThis error is returned if the lowest address in a kernel is below the 1MB boundary. The Linux zImage format is a special case and can be handled since it has a fixed loading address and maximum size. 8 : Kernel must be loaded before bootingThis error is returned if GRUB is told to execute the boot sequence without having a kernel to start. 9 : Unknown boot failureThis error is returned if the boot attempt did not succeed for reasons which are unknown. 10 : Unsupported Multiboot features requestedThis 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 stringThis error is returned if a device string was expected, and the string encountered didn't fit the syntax/rules listed in the Filesystem. 12 : Invalid device requestedThis error is returned if a device string
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