Issue with Grub after install

Question

When selecting Arch in Grub I'm getting the error "You need to load the kernal first". I'm not sure where I've gone wrong. I followed the Beginner's Guide very carefully, I read through the installing Grub section a dozen times and even the section about installing it on the Grub page; I later used Helmuthdu's script to see if that would work since it's automated and would hopefully avoid making the same mistakes I may have made but even that didn't work.
Here's my grub.cfg file, hopefully someone can spot what I can't.
As a sidenote, I installed os-prober before running grub-mkconfig, yet Windows hasn't shown up in Grub. I'm not sure if the two problems are related or not; I'm more worried about not being able to log into Arch at the moment though.
# DO NOT EDIT THIS FILE
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
### BEGIN /etc/grub.d/00_header ###
insmod part_gpt
insmod part_msdos
if [ -s $prefix/grubenv ]; then
load_env
fi
set default="0"
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 ad4103fa-d940-47ca-8506-301d8071d467
else
search --no-floppy --fs-uuid --set=root ad4103fa-d940-47ca-8506-301d8071d467
fi
font="/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_input console
terminal_output gfxterm
set timeout=5
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Arch Linux, with Linux core repo kernel' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-core repo kernel-true-ad4103fa-d940-47ca-8506-301d8071d467' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 ad4103fa-d940-47ca-8506-301d8071d467
else
search --no-floppy --fs-uuid --set=root ad4103fa-d940-47ca-8506-301d8071d467
fi
echo 'Loading Linux core repo kernel ...'
linux /boot/vmlinuz-linux root=UUID=ad4103fa-d940-47ca-8506-301d8071d467 rw quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initramfs-linux.img
menuentry 'Arch Linux, with Linux core repo kernel (Fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-core repo kernel-fallback-ad4103fa-d940-47ca-8506-301d8071d467' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 ad4103fa-d940-47ca-8506-301d8071d467
else
search --no-floppy --fs-uuid --set=root ad4103fa-d940-47ca-8506-301d8071d467
fi
echo 'Loading Linux core repo kernel ...'
linux /boot/vmlinuz-linux root=UUID=ad4103fa-d940-47ca-8506-301d8071d467 rw quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initramfs-linux-fallback.img
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
I'm not sure if viewing this will help or not.
sudo fdisk -l
Disk /dev/sda: 640.1 GB, 640133946880 bytes
255 heads, 63 sectors/track, 77825 cylinders, total 1250261615 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xc80ac80a
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT
/dev/sda2 206848 741279743 370536448 7 HPFS/NTFS/exFAT
/dev/sda3 741279744 745474047 2097152 82 Linux swap / Solaris
/dev/sda4 * 745474048 1250261614 252393783+ 83 Linux
Disk /dev/sdb: 160.0 GB, 160040803840 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312579695 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xb36eb36e
Device Boot Start End Blocks Id System
/dev/sdb1 63 312579694 156289816 83 Linux
Disk /dev/sdc: 16.0 GB, 16008609792 bytes
255 heads, 63 sectors/track, 1946 cylinders, total 31266816 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x096fcef9
Device Boot Start End Blocks Id System
/dev/sdc1 * 32 31266815 15633392 c W95 FAT32 (LBA)
Last edited by Axalon (2013-12-19 07:06:38)

Answer 1

hi, Axalon.
Here is the explanation. http://ubuntuforums.org/showthread.php?t=2066130
unfortunately, nobody here wants to say WHY.
it's because os-prober tends to read other OSes' grub.cfg. And the UUID=ad4103fa-d940-47ca-8506-301d8071d467 comes from some builder's disk partition.
it's so easy to solve now.