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I’ve had a chance to play around with Fedora Core 4 for a week and it’s turning out to be one of the best Fedora releases out-of-the-box.

It doesn’t look much different that Fedora Core 3 did.  The biggest changes under the hood are the updates to the Xorg and kernel packages, as well as compiling everything for GCC 4.0.  My desktop looks identical to the one that Fedora Core 3 showed me, with the exception of the new “Places” and “Desktop” menus - the two new top-level menus that come from the latest Gnome iteration.

I spent a few hours this weekend converting my entire Fedora Core 3 system over to EVMS.  The advantage over using one of the other alternatives like the bdclaim patch is that EVMS can manage your root filesystem.  This lets you alter the underlying storage of your root filesystem, including “hotswapping” one storage device for another without having to boot to a shell.

It isn’t straightforward getting this working in Fedora Core.  You’ll need to do some initrd hacking to get it up and running. 

Here’s what you need to do.  Note that this assumes that you are running the same kernel that you’ll be booting: