Ok, I'm running on the live cd right now and I executed the script you suggested.
Indeed, the 100MB partition seems to be the problem, but I don't know how to fix this. I don't mind reinstalling everything from scratch, because I've already done it a few times now.
Thanks for helping, I appreciate it.
RESULTS.txt:
============================= Boot Info Summary: ==============================
=> Windows is installed in the MBR of /dev/sda
sda1: __________________________________________________ _______________________
File system: ntfs
Boot sector type: Windows Vista
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs: /bootmgr /Boot/BCD
sda2: __________________________________________________ _______________________
File system: ntfs
Boot sector type: Windows Vista
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files/dirs: /Windows/System32/winload.exe
sda3: __________________________________________________ _______________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 9.10
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
=========================== Drive/Partition Info: =============================
Drive: sda ___________________ __________________________________________________ ___
Disk /dev/sda: 32.0 GB, 32017047552 bytes
255 heads, 63 sectors/track, 3892 cylinders, total 62533296 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk identifier: 0x000585af
Partition Boot Start End Size Id System
/dev/sda1 * 2,048 206,847 204,800 7 HPFS/NTFS
/dev/sda2 206,848 33,998,847 33,792,000 7 HPFS/NTFS
/dev/sda3 34,009,605 62,524,979 28,515,375 83 Linux
blkid -c /dev/null: __________________________________________________ __________
/dev/loop0: TYPE="squashfs"
/dev/sda1: UUID="8AA226B5A226A623" LABEL="System Reserved" TYPE="ntfs"
/dev/sda2: UUID="52BE6DFCBE6DD8CD" TYPE="ntfs"
/dev/sda3: UUID="0dac5624-8f6e-4e00-acd5-c9be6ef4e941" TYPE="ext4"
=============================== "mount" output: ===============================
aufs on / type aufs (rw)
none on /proc type proc (rw,noexec,nosuid,nodev)
none on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
/dev/sr0 on /cdrom type iso9660 (rw)
/dev/loop0 on /rofs type squashfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
none on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev)
none on /var/run type tmpfs (rw,nosuid,mode=0755)
none on /var/lock type tmpfs (rw,noexec,nosuid,nodev)
none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
gvfs-fuse-daemon on /home/ubuntu/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=ubuntu)
=========================== sda3/boot/grub/grub.cfg: ===========================
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s /boot/grub/grubenv ]; then
have_grubenv=true
load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
saved_entry=${prev_saved_entry}
save_env saved_entry
prev_saved_entry=
save_env prev_saved_entry
fi
insmod ext2
set root=(hd2,3)
search --no-floppy --fs-uuid --set 0dac5624-8f6e-4e00-acd5-c9be6ef4e941
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
fi
if [ ${recordfail} = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/white
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
menuentry "Ubuntu, Linux 2.6.31-14-generic" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
insmod ext2
set root=(hd2,3)
search --no-floppy --fs-uuid --set 0dac5624-8f6e-4e00-acd5-c9be6ef4e941
linux /boot/vmlinuz-2.6.31-14-generic root=UUID=0dac5624-8f6e-4e00-acd5-c9be6ef4e941 ro quiet splash
initrd /boot/initrd.img-2.6.31-14-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic (recovery mode)" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
insmod ext2
set root=(hd2,3)
search --no-floppy --fs-uuid --set 0dac5624-8f6e-4e00-acd5-c9be6ef4e941
linux /boot/vmlinuz-2.6.31-14-generic root=UUID=0dac5624-8f6e-4e00-acd5-c9be6ef4e941 ro single
initrd /boot/initrd.img-2.6.31-14-generic
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7 (loader) (on /dev/sdc1)" {
insmod ntfs
set root=(hd2,1)
search --no-floppy --fs-uuid --set 8aa226b5a226a623
chainloader +1
}
### 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 ###
=============================== sda3/etc/fstab: ===============================
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# / was on /dev/sdc3 during installation
UUID=0dac5624-8f6e-4e00-acd5-c9be6ef4e941 / ext4 errors=remount-ro 0 1
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
=================== sda3: Location of files loaded by Grub: ===================
17.4GB: boot/grub/grub.cfg
17.4GB: boot/initrd.img-2.6.31-14-generic
17.4GB: boot/vmlinuz-2.6.31-14-generic
17.4GB: initrd.img
17.4GB: vmlinuz