From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id 4E0AD158041 for ; Tue, 27 Feb 2024 00:12:28 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id B605DE2AE0; Tue, 27 Feb 2024 00:12:22 +0000 (UTC) Received: from mail-lj1-x22c.google.com (mail-lj1-x22c.google.com [IPv6:2a00:1450:4864:20::22c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 63449E2AD2 for ; Tue, 27 Feb 2024 00:12:22 +0000 (UTC) Received: by mail-lj1-x22c.google.com with SMTP id 38308e7fff4ca-2d2533089f6so43816391fa.1 for ; Mon, 26 Feb 2024 16:12:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1708992740; x=1709597540; darn=lists.gentoo.org; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :from:to:cc:subject:date:message-id:reply-to; bh=a6S9KxCd4akzWeGK3nFi4mK5WfPXTekl3teRFDLWupE=; b=R9nsRB3PvuNA6nEV+NRrzOfmasuLs560dJFrN9Rg1UKq4QjU9FRbUaJnhPcxfpNikz H20kq34OYY65an+du/TAeRNdyVFLU2NO2lKm3P17KqWJF7MOeq3BI+W5RrsexILuQxtM NQFDP8ce4FlDO75pDMCSCjFqcHCGkzhDaTYpje9Zi9Q681p2UgUKnSSDck9tolKkuTiN R5VyMYeLWTv77/0XkFEj2yw3fuA3oAXUNFX46+qcZqnlK7qGSkpnd7lVOup2wZVpa6gB agcXNW2gHEbX06V2qhr90YwNNdAEk1DdtOlU5iAmo8tdA+8X3clqi9s2Fh4Pk5mFH73i rVVA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708992740; x=1709597540; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=a6S9KxCd4akzWeGK3nFi4mK5WfPXTekl3teRFDLWupE=; b=LN41bNP+aCqRArV1HHyx7GwbWIXNfUYDWcU98u5i9octzw+HxCop76mi+Pyxqog2Zb BScHUR+/0zxZWt4dSiCAWFoLAGYSDGWOAB6TvcfeAjHZ+66kipLVmFRkZ68Wi4e9/P71 LOxSFwAMrvz00b04rrZomKMqBJFYBd+j6YOMZvwDRcbDcVzpvXC2teo4lVsr2xmEZWNM ES4GhZUwXWFsx9HwwSaBXfbxRZjpMaba0IXqKmUn0vFQ7WYYX5N8ZwW26M969ioNiZQH qH7xoQRJJ0535ttR2iSTcIv6ZLLiaK5V8m2p0MKHIojI3xMUIvP1xL8m/exoLYGveL4M GsPQ== X-Gm-Message-State: AOJu0Yzi1G1QLFvr0AYu6JI8f+QOAHMCh0kdYHrPhS2Whm4Ip2iXc/0b FEx1cu5CCorPzIAbA6UdiBe+rvfw1thfMiuI2Ez9fF0RL36w4NZDh6M0jDSUTcrrxGH+sZtBfVt 64BVeAoKc4erl0D4Hf17msARupU+lmjmL X-Google-Smtp-Source: AGHT+IERMz6rkoxRIZEIAH8+ehxlVwMl6/a/i5M9LOsd2rPjqecuMAIyjvxx/8X6byMcsp7XyFDFi5SmfMW1Mm5d5CA= X-Received: by 2002:a2e:8517:0:b0:2d2:8dae:b65 with SMTP id j23-20020a2e8517000000b002d28dae0b65mr2316028lji.39.1708992739786; Mon, 26 Feb 2024 16:12:19 -0800 (PST) Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 References: <980e5d0cacc6e8f17836a4b8b8ab45524e02170a.camel@krasauskas.dev> <6d739ab9-b9f5-4646-a832-82b9b847c5ae@cox.net> <99cf0efa-8d39-417a-a31f-6e2f26a24be3@youngman.org.uk> In-Reply-To: From: Mark Knecht Date: Mon, 26 Feb 2024 17:12:07 -0700 Message-ID: Subject: Re: [gentoo-user] Re: How to set up drive with many Linux distros? To: gentoo-user@lists.gentoo.org Content-Type: multipart/alternative; boundary="0000000000002dc395061251e1a3" X-Archives-Salt: 08c3564d-bb77-4974-8c26-bc82920f6d09 X-Archives-Hash: e99b0c39dca7407871787c46a6d93a04 --0000000000002dc395061251e1a3 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, Feb 26, 2024 at 4:45=E2=80=AFPM Grant Edwards wrote: > > On 2024-02-26, Wol wrote: > > On 26/02/2024 20:51, Grant Edwards wrote: > > > >> The simple answer is to quit wasting time trying to multi-boot like > >> that and just buy a dozen USB flash drives. > >> > > And then, if USB isn't the default boot media, he might as well sort ou= t > > UEFI boot, and multi-boot that way. > > Except that every time I've found a write-up about multibooting a lot > of Linux distros with UEFI, it turns out that it doesn't actually work > very well and is more work to maintain than what I'm doing now. > > -- > Grant I have no experience beyond three operating systems on a single machine but if you grabbed just 2 or 3 USB flash drives then I would think you could test it pretty easily. I believe the UEFI boot procedures are storing a unique ID for the disk or the partition you are requesting. If yo= u have a unique ID that's different for each flash drive it would (hopefully) find the one you're looking for which should be relatively simple. I would suggest you use the boot ordering feature and make the system hard drive last in the list. If no USB devices are plugged in it would default to your system drive. If a flash drive is plugged in it should find its ID and boot that first. I do not know if, for instance, you had 20 different drives listed in your BIOS whether it would be a lot slower to boot but you could test that yourself. Good luck, Mark --0000000000002dc395061251e1a3 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


On Mon, Feb 26, 2024 at 4:45=E2=80=AFPM Grant Edwa= rds <grant.b.edwards@gmail.= com> wrote:
>
> On 2024-02-26, Wol <antlists@youngman.org.uk> wrote:
> = > On 26/02/2024 20:51, Grant Edwards wrote:
> >
> >>= ; The simple answer is to quit wasting time trying to multi-boot like
&g= t; >> that and just buy a dozen USB flash drives.
> >>> > And then, if USB isn't the default boot media, he might as w= ell sort out
> > UEFI boot, and multi-boot that way.
>
&g= t; Except that every time I've found a write-up about multibooting a lo= t
> of Linux distros with UEFI, it turns out that it doesn't actu= ally work
> very well and is more work to maintain than what I'm = doing now.
>
> --
> Grant

I have no experienc= e beyond three operating systems on a single machine
but if you g= rabbed just 2 or 3 USB flash drives then I would think you=C2=A0
= could test it pretty easily. I believe the UEFI boot procedures=C2=A0are=C2= =A0
storing a unique ID for the disk or the partition you are req= uesting. If you
have a unique=C2=A0ID that's different for ea= ch flash drive it would (hopefully)=C2=A0
find the one you're= looking for which should be relatively simple.

I = would suggest you use the boot ordering feature and make the
syst= em hard drive last in the list. If no USB devices are plugged in
= it would default to your system drive. If a flash drive is plugged in
=
it should find its=C2=A0ID and boot that first.=C2=A0

I do not know if, for instance, you had 20 different drives listed= in
your BIOS whether it would be a lot slower to boot but you co= uld
test that yourself.

Good luck,
=
Mark
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