Family based GC for Parent & Sibling currently in US with NO entry documents

[ddoshi]

Hello,

I recently got my US Citizenship and would like to apply for my father & siblings PR/GC. When applying for them using I-130, can they qualify for I-485 adjustment of status since they are in US but with NO valid documents showing entry to United States? Besides, they both have previous record of being deported once for different reasons.

Someone suggested I use I 485-A supplement but I cannot understand the difference between I-485 & I-485A

Any suggestions or help would be appreciated. thanks