Dale posted on Wed, 08 Dec 2010 23:21:53 -0600 as excerpted: > Alex Schuster wrote:
>> If you are running databases like mysql, you need to export the >> databases and import them later. This is because they are in binary >> format, and the datatypes are different in x86 and amd64 world. > I don't have anything that I generated anyway. I have something > installed that KDE pulled in if I recall correctly. I'll let KDE start > off fresh tho. > > This does bring me to another thought tho. Would I be able to copy my > /home directory over from a x86 system? I'm thinking I would but want > to make sure. In general, the same /home should be fine, 32-bit or 64-bit. However, kde4 uses a database for akonadi. With older versions (thru 4.3 at least), it was mysql by default. Newer versions (from 4.5) use sqlite by default, tho there can be a bit of an issue trying to upgrade as the ebuild tries to default to sqlite, but the user config is still set to mysql. If mysql is still on the system, it'll use it since that's what was (automatically) configured in user settings, but if it's cleaned off as a now unneeded dependency, akonadi would of course fail, until the user's configure is (manually) updated. Of course, new-installs or new- users wouldn't have the issue as they'd not have that bit of existing config. I don't recall for sure whether it was 4.4 or 4.5 that switched, thus the gap above, but the sqlite dependency is FAR easier to deal with, now that they've worked thru the threading issues or whatever it was that was blocking its use earlier. I wasn't aware of a 32/64 mysql database incompatibility, but assuming Alex is correct, you might experience issues with that mysql/akonadi dependency, if you're still using an older kde or if you migrate the same home (with the mysql config) over. But as long as you either don't use akonadi (with 4.4/4.5 it's used for the address book but not for kmail itself; I don't know about kopete/etc as I don't do IRC/IM), or already have it configured for the sqlite backend, and aren't using mysql for anything else, you should be fine. And even in the event that you're still using the mysql backend, at worst, akonadi only caches the data before its written to traditional text files, so any loss of data should be only what didn't get written back to the permanent storage. tho of course it might not be working for a bit as you get the config squared away. Basically, then, as from what I recall you're following newer kde, 4.5.x, and not waiting for full Gentoo stabilization, I'd ensure that you're using the sqlite backend, not mysql, before you copy your home dir over, and then you should be fine. -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman
