Date: Mon, 25 May 2026 09:51:01 +0200 From: vermaden <vermaden@interia.pl> To: Takashi Shimizu <qqyr7xx9k@shirt.ocn.ne.jp>, freebsd-stable@freebsd.org Subject: Re: Proposal: Improve BE naming convention in freebsd-update install Message-ID: <7a0f1e46-b18d-455d-9b1c-f93131dae0bb@interia.pl> In-Reply-To: <70da0c5b-c865-44e9-8c19-abb1cd779efe@shirt.ocn.ne.jp>
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[-- Attachment #1 --] Hi. On 5/24/26 1:53 PM, Takashi Shimizu wrote: > > 1. > > The name "default" is misleading. It suggests "the BE that boots > by default" or "the latest running state", but in practice it is > just the residue of the initial installation, with no NR flag. The > name and its actual purpose are mismatched. > To understand 'default' name choose you will have to move back in time to 2012 when I implemented *beadm(8)* for FreeBSD: - https://forums.freebsd.org/threads/howto-freebsd-zfs-madness.31662/ The *pool/ROOT/default *was back then (and probably is still now) used by default on Solaris/Illumos - so I just recreated that - along with *beadm(8) *tool - its parameters and messages. Of course it can be changed - right now I use something like that personally: f25 vermaden ~ %*beadm list* BE Active Mountpoint Space Created 14.4 NR / 29.3G 2026-03-01 11:03 14.4.safe.OLD - - 7.3G 2026-05-08 01:19 14.4.safe - - 1.6G 2026-05-18 20:48 15.0 - - 12.7G 2026-05-21 12:24 On 5/25/26 2:40 AM, Edward Sanford Sutton, III wrote: > I still feel like my understanding of BEs is a bit weak and am still > learning but is seems there are common misconceptions shared around > about them. I tried to explain /ZFS Boot Environments/ multiple times ... but I still am not sure if I succeeded: - https://vermaden.wordpress.com/2025/11/25/zfs-boot-environments-explained/ - https://vermaden.wordpress.com/2022/03/14/zfs-boot-environments-revolutions/ - https://is.gd/BECTL Hope that helps. Regards, vermaden [-- Attachment #2 --] <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> <p>Hi.</p> <div class="moz-cite-prefix">On 5/24/26 1:53 PM, Takashi Shimizu wrote:<br> </div> <blockquote type="cite" cite="mid:70da0c5b-c865-44e9-8c19-abb1cd779efe@shirt.ocn.ne.jp"> <ol> <li> <p>The name "default" is misleading. It suggests "the BE that boots by default" or "the latest running state", but in practice it is just the residue of the initial installation, with no NR flag. The name and its actual purpose are mismatched.</p> </li> </ol> </blockquote> <p>To understand 'default' name choose you will have to move back in time to 2012 when I implemented <b>beadm(8)</b> for FreeBSD:</p> <p>- <a class="moz-txt-link-freetext" href="https://forums.freebsd.org/threads/howto-freebsd-zfs-madness.31662/">https://forums.freebsd.org/threads/howto-freebsd-zfs-madness.31662/</a></p>; <p>The <b>pool/ROOT/default </b>was back then (and probably is still now) used by default on Solaris/Illumos - so I just recreated that - along with <b>beadm(8) </b>tool - its parameters and messages.</p> <p>Of course it can be changed - right now I use something like that personally:</p> <pre>f25 vermaden ~ % <b>beadm list</b> BE Active Mountpoint Space Created 14.4 NR / 29.3G 2026-03-01 11:03 14.4.safe.OLD - - 7.3G 2026-05-08 01:19 14.4.safe - - 1.6G 2026-05-18 20:48 15.0 - - 12.7G 2026-05-21 12:24</pre> <p><br> </p> <p><br> </p> <p><br> </p> <div class="moz-cite-prefix">On 5/25/26 2:40 AM, Edward Sanford Sutton, III wrote:<br> </div> <blockquote type="cite" cite="mid:BL4PR11MB88249FD96B59C106E57DAD26E60A2@BL4PR11MB8824.namprd11.prod.outlook.com">I still feel like my understanding of BEs is a bit weak and am still learning but is seems there are common misconceptions shared around about them. <br> </blockquote> <p>I tried to explain <i>ZFS Boot Environments</i> multiple times ... but I still am not sure if I succeeded:</p> <p>- <a class="moz-txt-link-freetext" href="https://vermaden.wordpress.com/2025/11/25/zfs-boot-environments-explained/">https://vermaden.wordpress.com/2025/11/25/zfs-boot-environments-explained/</a></p>; <p>- <a class="moz-txt-link-freetext" href="https://vermaden.wordpress.com/2022/03/14/zfs-boot-environments-revolutions/">https://vermaden.wordpress.com/2022/03/14/zfs-boot-environments-revolutions/</a></p>; <p>- <a class="moz-txt-link-freetext" href="https://is.gd/BECTL">https://is.gd/BECTL</a></p>; <p><br> </p> <p>Hope that helps.</p> <p><br> </p> <p>Regards,</p> <p>vermaden</p> <p><br> </p> <p><br> </p> <p><br> </p> </body> </html>home | help
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