Date: Thu, 25 Jan 2024 09:49:56 -0800 (PST) From: "Rodney W. Grimes" <freebsd-rwg@gndrsh.dnsmgr.net> To: Warner Losh <imp@bsdimp.com> Cc: Ed Maste <emaste@FreeBSD.org>, "Rodney W. Grimes" <freebsd-rwg@gndrsh.dnsmgr.net>, FreeBSD Current <freebsd-current@FreeBSD.org> Subject: Re: Removing fdisk and bsdlabel (legacy partition tools) Message-ID: <202401251749.40PHnu4E002568@gndrsh.dnsmgr.net> In-Reply-To: <CANCZdfofWZqDLSN6RfZAcv=Lg5UbnjAUX1EGXbH7sNL8VDBSsg@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> On Thu, Jan 25, 2024, 9:11?AM Ed Maste <emaste@freebsd.org> wrote:
>
> > On Thu, 25 Jan 2024 at 11:00, Rodney W. Grimes
> > <freebsd-rwg@gndrsh.dnsmgr.net> wrote:
> > >
> > > > These will need to be addressed before actually removing any of these
> > > > binaries, of course.
> > >
> > > You seem to have missed /rescue. Now think about that long
> > > and hard, these tools classified as so important that they
> > > are part of /rescue. Again I can not stress enough how often
> > > I turn to these tools in a repair mode situation.
> >
> > I haven't missed rescue, it is included in the work in progress I
> > mentioned. Note that rescue has included gpart since 2007.
> >
>
> What can fdisk and/or disklabel repair that gpart can't?
As far as I know there is no way in gpart to get to the
MBR cyl/hd/sec values, you can only get to the LBA start
and end values:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 63, size 8388513 (4095 Meg), flag 80 (active)
beg: cyl 0/ head 1/ sector 1;
end: cyl 1023/ head 15/ sector 63
gpart show ada0
=> 63 8388545 ada0 MBR (4.0G)
63 8388513 1 freebsd [active] (4.0G)
8388576 32 - free - (16K)
Now I have learned that gpart backup/restore CAN get me
at least basic bsdlabel -e function, but again it has
no access to all the stuff stored that showsup with
bsdlabel -A. Which this is now the third time I have
asked "how do I do bsdlabel -A -e with gpart"? One
person at least answered that with:
gpart backup GEOM >backup
vi backup
gpart restore GEOM
Now I just have to rewrite my bsdlabel GEOM >backup
files to be be gpart GEOM >backup files (I have precanned
sets of bsdlabel files I use to do bsdlabel -w GEOM with.
> Warner
--
Rod Grimes rgrimes@freebsd.org
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?202401251749.40PHnu4E002568>