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[2001:470:1f1c:a0::2]) by smtp.gmail.com with ESMTPSA id g5sm6051072wrq.80.2021.08.27.04.22.37 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 27 Aug 2021 04:22:37 -0700 (PDT) Subject: Re: Encrypted swap partition no longer encrypted To: freebsd-current@freebsd.org References: <149845085.13.1630055426223@localhost> From: Graham Perrin Message-ID: Date: Fri, 27 Aug 2021 12:22:36 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org MIME-Version: 1.0 In-Reply-To: <149845085.13.1630055426223@localhost> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-GB X-Rspamd-Queue-Id: 4Gwy4G6mnHz4gD2 X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=Sg48WC2l; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of grahamperrin@gmail.com designates 2a00:1450:4864:20::32f as permitted sender) smtp.mailfrom=grahamperrin@gmail.com X-Spamd-Result: default: False [-4.00 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::32f:from]; NEURAL_HAM_SHORT(-1.00)[-0.998]; 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]; RCVD_TLS_ALL(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim] X-ThisMailContainsUnwantedMimeParts: N On 27/08/2021 10:10, Ronald Klop wrote: > … change "/dev/ada0p2" to "/dev/ada0p2.eli" in the new fstab and reboot. … Strange, I thought I tried that before writing. One of the first things that I would have tried. Anyhow: now, it has the required effect. ---- An additional mystery. Before replacement of the internal hard disk, I had swap at: /dev/ada0p3.eli With that disk now external, in the dock on USB, metadata can not be read (geli attach fails). I'm happy for this to remain mysterious; assume that non-encrypted data somehow crept in, use sswap(1) to securely delete whatever might be there. ---- % swapinfo Device          1M-blocks     Used    Avail Capacity /dev/ada0p2.eli     16384        0    16384     0% % sysrc dumpdev dumpdev: /dev/ada0p2.eli % grep swap /etc/fstab | grep -v \# /dev/ada0p2.eli none                    swap sw,late                    0     0 % sudo geli attach /dev/da0p3 grahamperrin's password: geli: Cannot read metadata from /dev/da0p3: Invalid argument. geli: There was an error with at least one provider. % lsblk DEVICE         MAJ:MIN SIZE TYPE                                          LABEL MOUNT ada0             0:121 932G GPT                                               - -   ada0p1         0:123 260M efi gpt/efiboot0 -            -:-   1.0M -                                                 - -   ada0p2         0:125  16G freebsd-swap                              gpt/swap0 SWAP   ada0p2.eli     2:67   16G freebsd-swap                                      - SWAP   ada0p3         0:127 915G freebsd-zfs                                gpt/zfs0   ada0p3.eli     0:135 915G zfs                                               - -            -:-   708K -                                                 - - cd0              0:129   0B -                                                 - - da0              0:184 466G GPT                                               - -   da0p1          0:189 200M efi msdosfs/EFISYS -   da0p2          0:192 512K freebsd-boot gpt/gptboot0 -            -:-   492K -                                                 - -   da0p3          0:193  16G freebsd-swap                              gpt/swap0 SWAP   da0p4          0:194 450G freebsd-zfs                                gpt/zfs0   da0p4.eli      0:198 450G zfs                                               - -            -:-   4.0K -                                                 - - da1              0:199   0B -                                                 - - da2              0:200   0B -                                                 - - da3              0:203   0B -                                                 - - da4              0:208   0B -                                                 - - da5              0:217 466G GPT                                               - -            -:-   1.0M -                                                 - -   da5p1          0:218 466G freebsd-zfs gpt/Transcend da6              0:225  14G GPT                                               - -            -:-   1.0M -                                                 - -   da6p1          0:226  14G freebsd-zfs gpt/cache-transcend da7              0:247  29G GPT                                               - -   da7p1          0:248  29G freebsd-zfs gpt/cache-august % sudo geli attach da0p3 geli: Cannot read metadata from da0p3: Invalid argument. geli: There was an error with at least one provider. % fstyp /dev/da0p3 fstyp: /dev/da0p3: filesystem not recognized %