System checks for disk drive error every time it boots

When my disk space for the ubuntu installation partition was getting low, from a live cd, I used gparted to increase its volume capacity, by deleting another partition and merging it to the ubuntu partition.

Since then, I am always receiving disk checking for errors at boot screen for my partitions.

What seems to be causing this and how can I fix it?

Update

Here is my boot.log if it provides few insight

fsck from util-linux 2.19.1
fsck from util-linux 2.19.1
/dev/sda1 was not cleanly unmounted, check forced.
ubuntu: clean, 501325/1310720 files, 2958455/5242880 blocks
/dev/sda1: 241/51272 files (3.3% non-contiguous), 73541/102400 blocks
mountall: fsck /boot [358] terminated with status 1
Skipping profile in /etc/apparmor.d/disable: usr.bin.firefox
...

/dev/sda1 is a separate grub partition for my dual OS's

You're going to have to let it complete at least once. fsck is a legitimate health-check, and it's the "Right Thing" to do.

that said, if you ARE letting it complete, and it's still running every time you reboot, check the SMART results in the Disk Utility application (disk could be going bad), or adjust the frequency of disk checks with a command like:

sudo tune2fs -c 50 /dev/sda1

be sure to change the device to your actual device name, and feel free to adjust the count as well.