Wrong drive mounted as /boot during 10.10 install. How do I resolve?

[KillrBuckeye]

My old server machine running Ubuntu 6 experienced hardware failure, so I built a new machine with spare parts and decided to install 10.10. I used the 2 HDDs from the old machine and decided to use existing partitions for the 10.10 installation. I specified the existing partitions on a 250 GB PATA drive for root, /boot, /home, and swap. For some reason when I booted up 10.10 for the first time, the other HDD (750 GB SATA) was mounted as /boot. I never specified the second drive to be used for anything during the installation, so I have no idea why this happened.

Any ideas why this happened, and how can I change the mount point for /boot? I would like the highlighted partition in the attached screenshot to be /boot. I really hope nothing on the 750 GB drive was overwritten in this whole process, because it contains all of my photo and video backup.

Any help you can provide would be appreciated.

[KillrBuckeye]

Now I'm even more confused. The drive designations in /etc/fstab and the output of fdisk -l don't seem to match:

Here's my /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 nodev,noexec,nosuid 0 0
/dev/sdb5 / ext4 errors=remount-ro 0 1
/dev/sdb1 /boot ext4 defaults 0 2
# /home was on /dev/sdb2 during installation
UUID=387f4854-fa08-4530-8435-33d9d597db33 /home ext3 defaults 0 2
# swap was on /dev/sdb3 during installation
UUID=68d453dc-d2bd-465d-8ad8-fd9b71c5277f none swap sw 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0

Here's output of fdisk -l

Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000ce7ff

Device Boot Start End Blocks Id System
/dev/sda1 * 1 51 409626 83 Linux
/dev/sda2 52 1963 15358140 83 Linux
/dev/sda3 1964 2059 771120 82 Linux swap / Solaris
/dev/sda4 2060 28830 215038027 5 Extended
/dev/sda5 2060 3334 10241406 83 Linux
/dev/sda6 3335 28830 204796588+ 83 Linux

Disk /dev/sdb: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00038666

Device Boot Start End Blocks Id System
/dev/sdb1 1 91201 732572001 83 Linux


In one place my 250 GB drive with multiple partitions is being called sda, and in the other place it's sdb...