Hi!
Some weeks ago the "Running Xen"-book was recommended to me on this
list. A nice book, but it gave me crazy idea: One of the
recommendations (which sounds very reasonable to me) was to have
instead of a single file that serves as a disk-image to have to
files: one of them (which is mounted to hda1) serves as a partition
that holds the data, the other one (which mounts to hda2) is the swap
partition. The text in the books (admittedly it's a bit vague there)
lead me to the conclusion that to the Xen-machine they will look like
two partitions of a single drive hda. The advantage should be that it
is much easier to extend the data partition (Take the machine
offline. Extend the image with dd. Extend the filesystem on the image)
I created the two files as described in book. "Formatted" them with
mkswap and mkfs.ext3 (as described in the book) and added them to the
configuration file for the host. Now when I start the installation of
the host machine right in the beginning I get a message "/dev/hda1 has
a loop partition layout. To use this disk for the installation of
CentOS it must be initialized". When I don't allow formatting I get
caught in a loop ("Is a loop partition. Initialize?"), when I allow
formatting I get a partition on each of the devices (hda11 and hda21)
and I would be allowed to go on with the installation, but IMHO this
would defeat the purpose of the exercise
So my question:
- is there some error in thinking on my side?
- is this a situation that the installer can't deal with? (in other
words: would it work if I copied a complete installation into the root
partition-image and then booted that?)
- or is there a reason that using partition images is not very
popular (Googling around did not reveal anything useful)
Bernhard
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