Kenneth Porter wrote:
On Friday, April 13, 2007 2:03 PM -0500 Les Mikesell
<lesmikesell@xxxxxxxxx> wrote:
Is it possible to install directly from a DVD iso image downloaded to a
USB external drive as a file on a FAT filesystem? That is, if I burn the
boot.iso on a CD and boot it, is there any way to mount the USB drive and
install from the DVD image file there (some target machines don't have a
DVD drive).
This sounds like a "hard drive installation":
<http://www.centos.org/docs/5/html/Installation_Guide-en-US/ch02s06.html>
The only requirement is that the installer OS be able to find the USB
drive where the ISO is located.
I actually recently attempted something similar with FC7t3, booting with
the installer on my USB memory stick, and the DVD ISO on the SATA
partition (sdb5) that I was going to target with the new OS. It hung
loading RPM's and I never found anything written to sdb5, so I suspect
the install got stuck in the disk cache. (While the installer was
running, I couldn't see any mountpoint for sdb5 either, just the
mountpoint for the location of the ISO image.)
I'm now planning to attempt something similar with Centos 5. I'll report
back how that goes. (I'm still waiting for the torrent to finish.)
Check the Anaconda archive at RH, I think I saw an aside about something
like this earlier today. I think one is supposed to be able to install
_to_ USB disk. Presumably if the installer on the CD can find it for one
purpose, it can find it for the other.
There's also a boot image for booting _from_ USB disk. Presumably that
can find it;-)
--
Cheers
John
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