Here’s an explanation of how to install CentOS 6.4 64bit minimal from an USB stick.
prepare a USB stick. I have prepared a 8GB USB stick.
I downloaded CentOS-6.4-x86_64-minimal.iso.
launch unetbootin to make an USB-based CentOS installer.
If you have not installed unetbootin , you can install it by just typing “apt-get install unetbootin”
choose CentOS-6.4-x86_64-minimal.iso as an ISO image and then click.
copy the ISO to the top directory in the USB stick
# cp CentOS-6.4-x86_64-minimal.iso /path-to-USB-stick/
The top directory in the USB stick would be like this:
CentOS-6.4-x86_64-minimal.iso RELEASE-NOTES-en-US.html images ubnfilel.txt
CentOS_BuildTag RPM-GPG-KEY-CentOS-6 isolinux ubninit
EFI RPM-GPG-KEY-CentOS-Debug-6 ldlinux.sys ubnkern
EULA RPM-GPG-KEY-CentOS-Security-6 menu.c32 ubnpathl.txt
GPL RPM-GPG-KEY-CentOS-Testing-6 repodata
Packages TRANS.TBL syslinux.cfg
If the ISO image isn’t in the USB stick , you would face the following error during the installation and fail to install the OS into HDDs.
Missing ISO 9660 Image
The installer has tried to mount image #1, but cannot find it on the hard drive.
In my experience , when using CentOS 6.4 normal DVD ISO image , 8GB USB stick does not have enough space to make an USB-based installer.
That’s why I use the minimal ISO image.
After preparing USB-based installer , insert the USB stick into your PCs and boot the USB first. You could install CentOS 6.4 from an USB stick.