Date: Thu, 28 May 2020 20:02:52 +0200 (CEST) From: salvatorembartolotta@libero.it To: Masachika ISHIZUKA <ish@amail.plala.or.jp> Cc: questions@freebsd.org Subject: Re: rEFInd and _two_ FREEBSD systems on the same disk on the same UEFI laptop Message-ID: <541290807.815064.1590688972628@mail1.libero.it> In-Reply-To: <20200527.154010.456241527955787106.ish@amail.plala.or.jp> References: <1590634251.1341132.1590515827296@mail1.libero.it> <20200527.154010.456241527955787106.ish@amail.plala.or.jp>
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> Il 27 maggio 2020 alle 8.40 Masachika ISHIZUKA <ish@amail.plala.or.jp> ha scritto:
>
>
> > Has anyone installed two BSD (say -RELEASE and -STABLE) on the same disk on the same UEFI machine using rEFInd?
>
> I'm using rEFInd and /dev/ada0p9 is / for 12.1-release and
> /dev/ada0p10 is / for 13-current.
>
> I copied /boot/loader.efi (from current) to /EFI/freebsd/loader.efi.
>
> /EFI/refind/refind.conf is like the following.
>
> menuentry FreeBSD-release {
> loader /EFI/freebsd/loader.efi
> options "rootdev=disk0p9 autoboot_delay=1"
> icon /EFI/refind/icons/os_freebsd-release.png
> }
>
> menuentry FreeBSD-current {
> loader /EFI/freebsd/loader.efi
> options "rootdev=disk0p10 autoboot_delay=1"
> icon /EFI/refind/icons/os_freebsd-current.png
> }
> --
> Masachika ISHIZUKA
Good afternoon,
Thanks for your swift and to-the-point reply.
Three remarks spring to my mind:
1) loader.efi is so smart as to manage, by _itself_, internal disks HDs/SSDs[1] (my laptop hosts a Samsung pm981 SDD),- no refind drivers for FreeBSD filesystems are needed;
2) loader.efi (about 500K in -CURRENT) is, so to speak, a full-fledged program, much smarter than loader(8); and I suppose loader.efi implements a _superset_ of the features of loader(8), documented in loader(8)'s man page;
3) There was a gotcha for my laptop.
Setting the rootdev variable, apparently, made no difference and refind only booted the first system in the disk. I guess this has to do with the traditional (split) partition layout I had chosen for both of FreeBSD variants: 512K freebsd-boot[2] type partition, then \, swap, \var, \tmp, \home, and \usr. I reinstalled both variants with almost the same scheme, i.e. with _NO_ freebsd-boot type partition. The rootdev variable then just worked(TM).
[1] I have yet to find a Linux distro able to detect my SSD out of the box(TM) - i.e. without requiring changes in the UEFI settings.
[2] Such an example can be found in FreeBSD's handbook.
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