Date: Wed, 10 Apr 2024 09:48:01 -0700 From: Mark Millard <marklmi@yahoo.com> To: Jessica Clarke <jrtc27@freebsd.org>, dev-commits-src-main@freebsd.org Cc: "cperciva@freebsd.org" <cperciva@FreeBSD.org> Subject: Re: git: a1bff97300ab - main - release: Don't reuse disc1/bootonly directories Message-ID: <73727045-7276-465F-9567-32C7A4FDDAE0@yahoo.com> References: <73727045-7276-465F-9567-32C7A4FDDAE0.ref@yahoo.com>
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Jessica Clarke <jrtc27_at_freebsd.org> wrote on
Date: Wed, 10 Apr 2024 05:18:23 UTC :
> On 10 Apr 2024, at 04:29, Colin Percival <cperciva@FreeBSD.org> wrote:
> >=20
> > . . .
> >=20
> > +disc1-disc1 disc1-memstick: disc1
> > + mkdir ${.TARGET}
> > + tar -cf- -C disc1 . | tar -xf- -C ${.TARGET}
>=20
> What=E2=80=99s wrong with cp -a?
A possibility from "man cp":
QUOTE
Note that cp copies hard linked files as separate files. If =
you
need to preserve hard links, consider using tar(1), cpio(1), =
or
pax(1) instead.
END QUOTE
cp should be avoided if there might be hard links involved on the source =
materials
that should be preserved in the destination material produced.
>=20
> Besides, shouldn=E2=80=99t this use -p if using tar?
(I'm not commenting on the above.)
>=20
> And -f- is the same as nothing.
"man tar" reports the deafult as /dev/sa0 on FreeBSD:
QUOTE
-f file, --file file
Read the archive from or write the archive to the specified =
file.
The filename can be - for standard input or standard =
output. The
default varies by system; on FreeBSD, the default is =
/dev/sa0; on
Linux, the default is /dev/st0.
END QUOTE
=3D=3D=3D
Mark Millard
marklmi at yahoo.com
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