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Wed, 27 Jan 2021 07:55:16 +0000 Received: by smtp411.mail.bf1.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 9581c2b9bd9137c0f10e3508603d2807; Wed, 27 Jan 2021 07:55:14 +0000 (UTC) From: Mark Millard Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.40.0.2.32\)) Subject: Re: FreeBSD-provided .vhd with VirtualBox: gpart I/O errors after resizing the virtual hard disk Message-Id: <44C0BC2F-6C15-405E-B8D7-99AEDA96E44E@yahoo.com> Date: Tue, 26 Jan 2021 23:55:11 -0800 To: grahamperrin@gmail.com, Current FreeBSD X-Mailer: Apple Mail (2.3654.40.0.2.32) References: <44C0BC2F-6C15-405E-B8D7-99AEDA96E44E.ref@yahoo.com> X-Rspamd-Queue-Id: 4DQbVv1jdYz3MFj X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.50 / 15.00]; TO_DN_SOME(0.00)[]; FREEMAIL_FROM(0.00)[yahoo.com]; MV_CASE(0.50)[]; R_SPF_ALLOW(-0.20)[+ptr:yahoo.com]; DKIM_TRACE(0.00)[yahoo.com:+]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[yahoo.com,reject]; NEURAL_HAM_SHORT(-1.00)[-1.000]; FREEMAIL_TO(0.00)[gmail.com,freebsd.org]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[yahoo.com]; ASN(0.00)[asn:36647, ipnet:98.137.64.0/20, country:US]; RBL_DBL_DONT_QUERY_IPS(0.00)[98.137.68.82:from]; DWL_DNSWL_NONE(0.00)[yahoo.com:dkim]; MID_RHS_MATCH_FROM(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[yahoo.com:s=s2048]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; SPAMHAUS_ZRD(0.00)[98.137.68.82:from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[98.137.68.82:from]; RWL_MAILSPIKE_POSSIBLE(0.00)[98.137.68.82:from]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-current] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 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: Wed, 27 Jan 2021 07:55:20 -0000 Graham Perrin grahamperrin at gmail.com wrote on Mon Jan 25 22:08:53 UTC 2021 : . . . omitted material, including steps 01..13 . . . Your steps 01..13 make no mention of involving growfs as indicated in "man 8 growfs". I'd guess that the growfs step would be after step 8 (recover) and before 10 (show). (FYI: There is also a "man 7 growfs".) > With FreeBSD-provided 'FreeBSD-12.1-RELEASE-amd64.vhd', things seem even > worse. Please see, for example, this screen recording: > > > > What's going wrong? > > Is it necessary to boot first from something _other_ than the resized > disk, for things such as gpart recover to proceed without I/O error for > the resized disk? I looked at the screen recording's playback and . . . You have made no mention of the cylinder checksum failure notices or at what stage they first occurred. That might be important. I've no clue if they might be an initial cause of issues vs. them being an effect that might also contribute to later issues when the checksums fail. Unfortunately, it does not look like "man fsck_ffs" covers its cylinder checksum failure handling: ** Phase 5 - Check Cyl groups (At least I presume that phase is related to what the failure notices are reporting.) I'm afraid I'm of no general help but it looked like some extra information might be appropriate --or the man 8 or 7 growfs related activity being involved might avoid later getting cylinder checksum failure notices. I hope this proves of some help, but, if it is not, I'm unlikely to have more information, sorry. === Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)