On Mon, Jul 6, 2020 at 4:48 PM Gerald Henriksen <ghenr...@gmail.com> wrote: > > On Wed, 1 Jul 2020 14:24:37 -0400, you wrote: > > >On Wed, Jul 01, 2020 at 06:54:02AM +0000, Zbigniew J?drzejewski-Szmek wrote: > >> Making btrfs opt-in for F33 and (assuming the result go well) opt-out for > >> F34 > >> could be good option. I know technically it is already opt-in, but it's not > >> very visible or popular. We could make the btrfs option more prominent and > >> ask people to pick it if they are ready to handle potential fallout. > > > >I'm leaning towards recommending this as well. I feel like we don't have > >good data to make a decision on -- the work that Red Hat did previously when > >making a decision was 1) years ago and 2) server-focused, and the Facebook > >production usage is encouraging but also not the same use case. I'm > >particularly concerned about metadata corruption fragility as noted in the > >Usenix paper. (It'd be nice if we could do something about that!) > > So if one has a spare partition to play with btrfs, is there an easy > way to install a second copy of Fedora without having the /boot/efi/ > entries overwrite the existing Fedora installation? Or fix it to have > 2 separate entries after the fact?
It's possible but has challenges. Separate ESP's you'll need to either (a) use the firmware's built-in boot manager to choose what will probably appear to be identically named Fedora's (b) add new NVRAM entries, and names, and switch between them before reboot by using efibootmgr --bootorder or --bootnext. Another option is shared ESP and /boot but my vague recollection is some things go away. For sure /boot/efi/EFI/fedora is replaced, and then possibly /boot/loader/entries are replaced. But that might be easier to deal with than the above, and more efficient. -- Chris Murphy _______________________________________________ devel mailing list -- firstname.lastname@example.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://email@example.com