Having trouble making and install USB with 6.6

[1885]

We are trying to install Centos 6.6 on a Server. We've have a lab full of Centos 7 computers.
We are using the dd command to create a USB boot image from an iso.
#dd if=CentOS-6.6-x86_64-bin-DVD1.iso of=/dev/sdb

We are downloaded from http://centos.eecs.wsu.edu/6.6/isos/x86_64/
We get the following error:
No DEFAULT or UI configuration directive found!

The size on the server does not match with the download.

-rw-r----- 1 cwc cwc 2147486097 Feb 25 19:15 CentOS-6.6-x86_64-bin-DVD1.iso
-rw-r----- 1 cwc cwc 1303465984 Feb 25 19:13 CentOS-6.6-x86_64-bin-DVD2.iso
-rw-r----- 1 cwc cwc 401604608 Feb 25 19:09 CentOS-6.6-x86_64-minimal.iso


I'm not sure how to use the md5sum.txt

Please throw me bone.

[gerald_clark]

man md5sum

If the size is wrong, though, don't bother.

What is a /dev/sdbhe ? You should be copying the ISO directly to the raw USb device.

[TrevorH]

Looking at the size of your DVD1 image, it looks like you have used a tool to download it that cannot handle filesizes greater than 2^32-1 (2GB-1). It ought to be more than 4GB in size and yours is slightly under 2GB.

[1885]

solved.

I used torrent to get the iso files then used md5sum to compare all is good.