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[79.66.147.78]) by smtp.gmail.com with ESMTPSA id a1sm15016311wrn.80.2020.05.03.10.44.49 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 03 May 2020 10:44:49 -0700 (PDT) Subject: Re: beadm no longer able to destroy, maybe since using OpenZFS From: Graham Perrin To: freebsd-current@freebsd.org References: <8e30bce4-e740-2d8b-24dd-b73471bf0fab@gmail.com> Message-ID: <7bd898ec-7e56-959d-48a5-6cfea4561602@gmail.com> Date: Sun, 3 May 2020 18:44:48 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <8e30bce4-e740-2d8b-24dd-b73471bf0fab@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-Rspamd-Queue-Id: 49FYKJ5cjWz40Pv X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=O45W65//; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of grahamperrin@gmail.com designates 2a00:1450:4864:20::432 as permitted sender) smtp.mailfrom=grahamperrin@gmail.com X-Spamd-Result: default: False [-3.00 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RECEIVED_SPAMHAUS_PBL(0.00)[78.147.66.79.khpj7ygk5idzvmvt5x4ziurxhy.zen.dq.spamhaus.net : 127.0.0.10]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; IP_SCORE_FREEMAIL(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; IP_SCORE(0.00)[ip: (-9.34), ipnet: 2a00:1450::/32(-2.31), asn: 15169(-0.43), country: US(-0.05)]; RCVD_IN_DNSWL_NONE(0.00)[2.3.4.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.5.4.1.0.0.a.2.list.dnswl.org : 127.0.5.0]; RCVD_TLS_ALL(0.00)[] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 03 May 2020 17:44:53 -0000 On 03/05/2020 06:05, Graham Perrin wrote: > After reverting from OpenZFS to ZFS, I was able to destroy two of the > boot environments that previously (below, 1st May, OpenZFS) could not > be destroyed. > > I'm left with at least one BE 'r360237c' that can not be destroyed. Is > it ever normal to find a snapshot described as '-'? > > root@momh167-gjp4-8570p:~ # kldstat | grep zfs >  2    1 0xffffffff82109000   3a8b40 zfs.ko > root@momh167-gjp4-8570p:~ # date > Sun May  3 05:59:06 BST 2020 … > root@momh167-gjp4-8570p:~ # beadm destroy r360237c > Are you sure you want to destroy 'r360237c'? > This action cannot be undone (y/[n]): y > Boot environment 'r360237c' was created from existing snapshot > Destroy '-' snapshot? (y/[n]): y > cannot destroy 'copperbowl/ROOT/r360237c': filesystem has dependent > clones > use '-R' to destroy the following datasets: > copperbowl/ROOT/r360237e@2020-05-01-17:58:33 > copperbowl/ROOT/r360237e > copperbowl/ROOT/r357746h > copperbowl/ROOT/Waterfox … I temporarily activated (but did not boot from) an older environment BE r357746h, then created and activated r360237f. Then the previously indestructible r360237c was destroyed successfully: ---- root@momh167-gjp4-8570p:~ # beadm list -as BE/Dataset/Snapshot                            Active Mountpoint Space Created Waterfox   copperbowl/ROOT/Waterfox                     -      - 314.0M 2020-03-10 18:24     r360237f@2020-03-20-06:19:45               -      - 1.0G 2020-03-20 06:19 r357746h   copperbowl/ROOT/r357746h                     -      - 3.4M 2020-04-08 09:28     r360237f@2020-04-09-17:59:32               -      - 1.1G 2020-04-09 17:59 r360237c   copperbowl/ROOT/r360237c                     -      - 17.0M 2020-04-29 13:24     r360237f@2020-04-29-13:24:52               -      - 229.0M 2020-04-29 13:24 r360237e   copperbowl/ROOT/r360237e                     N      / 680.0K 2020-05-01 17:58     r360237f@2020-05-03-18:30:25               -      - 440.0K 2020-05-03 18:30 r360237f   copperbowl/ROOT/r360237f@2020-03-20-06:19:45 -      - 1.0G 2020-03-20 06:19   copperbowl/ROOT/r360237f@2020-04-09-17:59:32 -      - 1.1G 2020-04-09 17:59   copperbowl/ROOT/r360237f@2020-04-29-13:24:52 -      - 229.0M 2020-04-29 13:24   copperbowl/ROOT/r360237f@2020-05-01-17:58:33 -      - 162.0M 2020-05-01 17:58   copperbowl/ROOT/r360237f                     R      - 81.7G 2020-05-03 18:30   copperbowl/ROOT/r360237f@2020-05-03-18:30:25 -      - 440.0K 2020-05-03 18:30 root@momh167-gjp4-8570p:~ # date ; uname -v ; uptime Sun May  3 18:32:31 BST 2020 FreeBSD 13.0-CURRENT #54 r360237: Fri Apr 24 09:10:37 BST 2020 root@momh167-gjp4-8570p:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG  6:32PM  up 12:54, 5 users, load averages: 0.48, 0.44, 0.41 root@momh167-gjp4-8570p:~ # kldstat | grep zfs  2    1 0xffffffff82109000   3a8b40 zfs.ko root@momh167-gjp4-8570p:~ # beadm destroy r360237c Are you sure you want to destroy 'r360237c'? This action cannot be undone (y/[n]): y Destroyed successfully root@momh167-gjp4-8570p:~ # zfs destroy copperbowl/ROOT/r360237f@2020-03-20-06:19:45 cannot destroy 'copperbowl/ROOT/r360237f@2020-03-20-06:19:45': snapshot has dependent clones use '-R' to destroy the following datasets: copperbowl/ROOT/Waterfox root@momh167-gjp4-8570p:~ # zfs destroy copperbowl/ROOT/r360237f@2020-04-09-17:59:32 cannot destroy 'copperbowl/ROOT/r360237f@2020-04-09-17:59:32': snapshot has dependent clones use '-R' to destroy the following datasets: copperbowl/ROOT/r357746h root@momh167-gjp4-8570p:~ # zfs destroy copperbowl/ROOT/r360237f@2020-05-01-17:58:33 root@momh167-gjp4-8570p:~ # beadm list -as BE/Dataset/Snapshot                            Active Mountpoint Space Created Waterfox   copperbowl/ROOT/Waterfox                     -      - 314.0M 2020-03-10 18:24     r360237f@2020-03-20-06:19:45               -      - 1.0G 2020-03-20 06:19 r357746h   copperbowl/ROOT/r357746h                     -      - 3.4M 2020-04-08 09:28     r360237f@2020-04-09-17:59:32               -      - 1.1G 2020-04-09 17:59 r360237e   copperbowl/ROOT/r360237e                     N      / 756.0K 2020-05-01 17:58     r360237f@2020-05-03-18:30:25               -      - 440.0K 2020-05-03 18:30 r360237f   copperbowl/ROOT/r360237f@2020-03-20-06:19:45 -      - 1.0G 2020-03-20 06:19   copperbowl/ROOT/r360237f@2020-04-09-17:59:32 -      - 1.1G 2020-04-09 17:59   copperbowl/ROOT/r360237f                     R      - 80.9G 2020-05-03 18:30   copperbowl/ROOT/r360237f@2020-05-03-18:30:25 -      - 440.0K 2020-05-03 18:30 root@momh167-gjp4-8570p:~ # bectl list -as BE/Dataset/Snapshot                              Active Mountpoint Space Created Waterfox   copperbowl/ROOT/Waterfox                       -      - 314M  2020-03-10 18:24 r357746h   copperbowl/ROOT/r357746h                       -      - 3.44M 2020-04-08 09:28 r360237e   copperbowl/ROOT/r360237e                       N      / 764K  2020-05-01 17:58 r360237f   copperbowl/ROOT/r360237f                       R      - 80.9G 2020-05-03 18:30   r360237f@2020-03-20-06:19:45                   -      - 1.02G 2020-03-20 06:19   r360237f@2020-04-09-17:59:32                   -      - 1.15G 2020-04-09 17:59   r360237f@2020-05-03-18:30:25                   -      - 440K  2020-05-03 18:30 root@momh167-gjp4-8570p:~ #