Error when booting: Diskfilter writes not supported

[whateverthing]

Well, I got to the step where I create the first partition, and am not sure what option to choose here:

Code:

Warning! Main partition table overlaps the first partition by 34 blocks!
You will need to delete this partition or resize it in another utility.

Command (? for help): o
This option deletes all partitions and creates a new protective MBR.
Proceed? (Y/N): y

Command (? for help): n
Partition number (1-128, default 1):
First sector (34-30548014, default = 2048) or {+-}size{KMGTP}: 

Should I take the default value?

Also, is that warning a problem?