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Date: Thu, 05 Sep 2024 23:06:26 +0100 Message-ID: <7866172.lvqk35OSZv@rogueboard> In-Reply-To: References: <8c26be16-d033-ea3f-06e1-a9ce84cbbafb@gmail.com> 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 Content-Type: multipart/signed; boundary="nextPart6077299.alqRGMn8q6"; micalg="pgp-sha256"; protocol="application/pgp-signature" X-PPP-Message-ID: <172557398647.1759550.15642687071119273654@cloud238.thundercloud.uk> X-PPP-Vhost: kintzios.com X-Rspamd-Queue-Id: 4AF271E0007 X-Rspamd-Server: mailclean11 X-Spamd-Result: default: False [-1.61 / 999.00]; SIGNED_PGP(-2.00)[]; MID_RHS_NOT_FQDN(0.50)[]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; ONCE_RECEIVED(0.10)[]; MX_GOOD(-0.01)[]; R_SPF_ALLOW(0.00)[+mx]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_VIA_SMTP_AUTH(0.00)[]; ASN(0.00)[asn:34931, ipnet:149.255.60.0/22, country:GB]; MISSING_XM_UA(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; MIME_TRACE(0.00)[0:+,1:+,2:~]; RCVD_COUNT_ONE(0.00)[1]; R_DKIM_NA(0.00)[]; RCVD_TLS_ALL(0.00)[]; NEURAL_HAM(-0.00)[-0.855]; REPLYTO_ADDR_EQ_FROM(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; ARC_NA(0.00)[]; DMARC_POLICY_ALLOW(0.00)[kintzios.com,none]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[gentoo-user@lists.gentoo.org]; HAS_REPLYTO(0.00)[confabulate@kintzios.com] X-Rspamd-Action: no action X-Archives-Salt: 4f4a2d41-fac5-4aa5-9920-1717a9239c7f X-Archives-Hash: 4305cac79aca9bfc4d872bcd2ba55c1c --nextPart6077299.alqRGMn8q6 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8"; protected-headers="v1" From: Michael To: gentoo-user@lists.gentoo.org Reply-To: confabulate@kintzios.com Date: Thu, 05 Sep 2024 23:06:26 +0100 Message-ID: <7866172.lvqk35OSZv@rogueboard> In-Reply-To: MIME-Version: 1.0 On Thursday 5 September 2024 19:55:56 BST Frank Steinmetzger wrote: > Am Thu, Sep 05, 2024 at 06:30:54AM -0500 schrieb Dale: > > > Use rsync with: > > > --checksum > > >=20 > > > and > > >=20 > > > --dry-run >=20 > I suggest calculating a checksum file from your active files. Then you do= n=E2=80=99t > have to read the files over and over for each backup iteration you compare > it against. >=20 > > > You can also run find to identify which files were changed during the > > > period you were running with the dodgy RAM. Thankfully you didn't run > > > for too long before you spotted it. >=20 > This. No need to check everything you ever stored. Just the most recent > stuff, or at maximum, since you got the new PC. >=20 > > I have just shy of 45,000 files in 780 directories or so. Almost 6,000 > > in another. Some files are small, some are several GBs or so. Thing > > is, backups go from a single parent directory if you will. Plus, I'd > > want to compare them all anyway. Just to be sure. >=20 > I aqcuired the habit of writing checksum files in all my media directories > such as music albums, tv series and such, whenever I create one such > directory. That way even years later I can still check whether the files = are > intact. I actually experienced broken music files from time to time (most= ly > on the MicroSD card in my tablet). So with checksum files, I can verify > which file is bad and which (on another machine) is still good. There is also dm-verity for a more involved solution. I think for Dale=20 something like this should work: find path-to-directory/ -type f | xargs md5sum > digest.log then to compare with a backup of the same directory you could run: md5sum -c digest.log | grep FAILED Someone more knowledgeable should be able to knock out some clever python=20 script to do the same at speed. --nextPart6077299.alqRGMn8q6 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. 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