On Dec 12, 2009, at 10:32 AM, Mattias Pantzare wrote:
On Sat, Dec 12, 2009 at 18:08, Richard Elling <richard.ell...@gmail.com
> wrote:
On Dec 12, 2009, at 12:53 AM, dick hoogendijk wrote:
On Sat, 2009-12-12 at 00:22 +0000, Moritz Willers wrote:
The host identity had - of course - changed with the new
motherboard
and it no longer recognised the zpool as its own. 'zpool import -f
rpool' to take ownership, reboot and it all worked no problem
(which
was amazing in itself as I had switched from AMD to Intel ...).
Do I understand correctly if I read this as: OpenSolaris is able to
switch between systems without reinstalling? Just a zfs import -f
and
everything runs? Wow, that would be an improvemment and would make
things more like *BSD/linux.
Solaris has been able to do that for 20+ years. Why do you think
it should be broken now?
Solaris has _not_ been able to do that for 20+ years. In fact Sun has
always recommended a reinstall. You could do it if you really knew
how, but it was not easy.
A flash archive is merely a cpio image of an existing system wrapped
by clever scripts that edit /etc/vfstab and reset the sysidcfg. You can
do this by hand or script quite easily and many of us have done so since
the late 1980s. With ZFS it is a little bit easier, because you no
longer
have to edit /etc/vfstab.
As to what is "supported," I know of nobody at Sun that has a list of
what is or what is not "supported." Clearly, it is easier to CYA by
falling back to "reinstallation required."
If you switch between identical system it will of course work fine
(before zfs that is, now you may have to import the pool on the new
system).
When I was designing appliances at Sun, I kept having to fight with
marketing because we developed the software stack to work across
all platforms of the same architecture. Marketing was convinced that
you could not create a software stack that worked the same on a lowly
desktop as a F15K. Go figure.
-- richard
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