Date: Wed, 3 Sep 2025 18:30:16 +0900 From: Tomoaki AOKI <junchoon@dec.sakura.ne.jp> To: Warner Losh <imp@bsdimp.com> Cc: Graham Perrin <grahamperrin@gmail.com>, FreeBSD-CURRENT <freebsd-current@freebsd.org> Subject: Re: Using a recovery partition to repair a broken installation of FreeBSD Message-ID: <20250903183016.a608f97e10208e904a11a4ba@dec.sakura.ne.jp> In-Reply-To: <CANCZdfrLS9ts7s6s=XpPK3044jz6_GQn_G-YCd-d0B-FO731jw@mail.gmail.com> References: <7b384ac0-9b24-43a4-bf63-012d745155a7@gmail.com> <aKD970iOlzyQNi0d@amaryllis.le-fay.org> <18e1a7e9-07d8-43a2-96af-0acdab6c2920@gmail.com> <babf662e-cded-4a2c-b5e8-c5a7175739f2@gmail.com> <98890564-ad8f-411a-9c00-45326a9d6ff5@gmail.com> <CANCZdfrLS9ts7s6s=XpPK3044jz6_GQn_G-YCd-d0B-FO731jw@mail.gmail.com>
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On Tue, 2 Sep 2025 13:26:53 -0600 Warner Losh <imp@bsdimp.com> wrote: > On Tue, Sep 2, 2025 at 12:53 PM Graham Perrin <grahamperrin@gmail.com> > wrote: > > > On 01/09/2025 02:58, Graham Perrin wrote: > > > An enhancement to bsdinstall could, before creation of the partition > > > table, allow the user to specify an amount of space to be left free at > > > the end of a device … > > > > > > For now, short term, is the (simple) free space idea attractive? > > > > Longer term: I'm not averse to more complex enhancements around e.g. > > /rescue/, however I _do_ like the idea of free space. > > > > Freedom for the user to do whatever they want. They might, or might not, > > want to use the space for the content of > > FreeBSD-15.0-RELEASE-amd64-memstick.img … and so on. Maybe this overlaps > > with ZFS-specific bsdinstall report > > <https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242983>. > > > > Things are small enough, I'd rather just create it in the ESP directly. > Special reserved space on disks are nothing but a pain. > > Warner What I imagine with this specific use-case (example): 1. Create 250MB ESP as, i.e., nda0p1 2. Create freebsd-zfs for all remained amount after 3., as nda0p2 3. Create 64GB freebsd-swap as nda0-3 at the end of the drive In this case, I need to calculate the (aligned) size of 2. manually, which is a bit pain. Something like gpart add -a 1M -t freebsd-zfs -l zfsNVMe001 -i 2 -s fill nda0 then create -i 3 and later, and finally gpart commit actually create second and later partitions would be helpful. -- Tomoaki AOKI <junchoon@dec.sakura.ne.jp>home | help
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