[CentOS] Three Identical systems - short cut to setting up the drives?
Les Mikesell
lesmikesell at gmail.com
Fri Jul 4 16:41:19 UTC 2008
Karanbir Singh wrote:
> Robert Moskowitz wrote:
>> I am building three identical systems. Well they will have different
>> host names, and with time the software setups will drift. But at install
>> time they are identical.
> ..snip...
>> I would hope this is faster than 2 more installs.
>
> its not
>
> do the install over the network from a http server, given the same
> network, it would be many times faster to do the 2nd and 3rd install
> using the ks.cfg generated from the 1st one ( as Terry Polzin already
> pointed out ).
>
> It will be many times faster than doing DD images of entire drives. eg.
> in my case here, i can provision a new machine in 2 min and 43 seconds
> for a base+core minimal centos-5 install. installing over http from a
> machine on a GiB/sec link and installing to a 2 disk raid-1
Yes, dd is actually pretty slow in wall clock time. Where it wins is in
human time since you just type a short command line and go away, and it
duplicates any setup work you've done in addition too installing the
packages.
--
Les Mikesell
lesmikesell at gmail.com
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