Margot Miller wrote: > Hey Sarah, > > I have a few questions regarding not supporting > "in place" upgrades. > > Do most other O/S'es offer "in place" upgrade? > Well.. Fedora Core 5 does. I believe Ubuntu does. I don't know about MacOS.
The issue with in place upgrades is that: 1. It makes the system unusable for that period of time that the upgrade is running. 2. There is no rollback mechanism, short of a full restore, if something gets broken. Our choice to use live upgrade means these things are no longer issues. The one thing it does mean however, is that extra disk space is needed for the alternate boot environment that is created to enable live upgrade. > Does a user have to reinstall all their application > software after doing an upgrade if there is no > "in place" O/S upgrade? > > No... the applications are separate from what a live upgrade upgrades. With live upgrade an alternate boot environment is created with the upgraded version of Solaris. The applications that are installed on the system will remain untouched with this mechanism. thanks, sarah **** > Thanks > Margot > > >> Date: Wed, 08 Nov 2006 13:21:48 -0700 >> From: Sarah Jelinek <Sarah.Jelinek at sun.com> >> Subject: [install-discuss] Caiman Architecture document posted for review >> To: install-discuss at opensolaris.org >> >> Hi Folks, >> >> We have completed the first draft of the Caiman install project >> architecture document and have posted it for review. >> >> You can get it: >> http://www.opensolaris.org/os/community/install/caiman_arch.pdf >> >> Or it is linked off the installation and packaging community page: >> http://www.opensolaris.org/os/community/install/ >> >> Please review and send comments to this alias, >> install-discuss at opensolaris.org. We are requesting that comments for the >> first round of reviews be in by December 4, 2006. >> >> Thanks in advance for your participation and input. >> >> Regards, >> sarah >> _______________________________________________ >> install-discuss mailing list >> install-discuss at opensolaris.org >> http://opensolaris.org/mailman/listinfo/install-discuss >> > > > >
