How to Make a usb Boot disk for Centos/RHEL from ISO File
You may need to install the following toll in your desktop,
# aptitude install syslinux
Now download and ISO from Centos Mirror and convert the ISO to Hybrid ISO as follows,
# wget -c http://centos.excellmedia.net/6.4/isos/x86_64/CentOS-6.4-x86_64-minimal.iso # isohybrid CentOS-6.4-x86_64-minimal.iso
Now plug your usb drive and format it using vfat
# umount /dev/sdc1 # mkfs.vfat /dev/sdc1
Now copy the ISO image using the following command ,
# dd if=CentOS-6.4-x86_64-minimal.iso of=/dev/sdc1
You may see a result like as follows,
root@myhome:/home# mkfs.vfat /dev/sdc1 mkfs.vfat 3.0.12 (29 Oct 2011) root@myhome:/home# dd if=CentOS-6.4-x86_64-minimal.iso of=/dev/sdc1 702464+0 records in 702464+0 records out 359661568 bytes (360 MB) copied, 314.59 s, 1.1 MB/s
Now you can reboot your computer using this pen drive and install centos.
This all looks good. Whatever given here also gets printed in my terminal. But the pendrive did not turn out to be a bootable disk. I am using ubuntu 13.04. What could be the possible reason?