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79 AD Mount Vesuvius erupts. In Herculaneum, twenty meters of hot mud and ash bury an enormous villa once owned by the father-in-law of Julius Caesar. Inside, there is a vast library of papyrus scrolls. The scrolls are carbonized by the heat of the volcanic debris. But they are also preserved. For centuries, as virtually every ancient text exposed to the air decays and disappears, the library of the Villa of the Papyri waits underground, intact.
- Vesuvius Challenge 2023
- educelab/volume-cartographer - Volumetric processing toolkit and C++ libraries for the recovery and restoration of damaged cultural materials
- KhartesViewer/khartes - Explore, and then segment, the data volumes created by high-resolution X-ray tomography of the Herculaneum scrolls
- The Getty Villa
- Herculaneum Papyri
- Students Decipher 2,000-Year-Old Herculaneum Scrolls
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FTTH / Fibre sans box opérateur
2020-12-18 - https://blog.desgrange.net/post/2016/03/21/ftth-free-sans-freebox.html
- https://blog.tristramg.eu/fibre-free-sans-freebox
- https://lafibre.info/remplacer-freebox/remplacer-le-modem-fibre-optique-du-fai-par-un-serveur/
- https://www.tp-link.com/fr/business-networking/accessory/mc220l/
- https://www.tp-link.com/fr/business-networking/accessory/tl-sm321b/
- https://fr.wikipedia.org/wiki/Connecteur_optique_LC
- https://fr.wikipedia.org/wiki/Connecteur_optique_SC
- https://lafibre.info/remplacer-freebox/utiliser-un-serveur-linux-a-la-place-de-la-freebox-pour-debrider-la-connexion/
- https://forum.universfreebox.com/viewtopic.php?t=61767
- https://freebox.toosurtoo.com/forum/viewtopic.php?p=93815
- https://www.asuswrt-merlin.net/
- https://smpfr.info/viewtopic.php?t=1565
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- https://github.com/kerrickstaley/extracting-chinese-subs/tree/master
- https://github.com/tesseract-ocr/tesseract
- https://github.com/tesseract-ocr/tesseract/wiki/ImproveQuality
- https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract
- https://gitlab.gnome.org/World/OpenPaperwork/pyocr
- https://docs.opencv.org/2.4/modules/core/doc/operations_on_arrays.html#inrange
- https://docs.python.org/3/library/unicodedata.html
- https://news.ycombinator.com/item?id=14440849
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Here are the steps I used to migrate a CentOS 7 VM from (presumably?) an ESXi server, to a local VirtualBox environment.
The LVM volumes were not detected at boot, and after the boot timeout, the OS fell back to the Dracut emergency shell.
- get a CentOS minimal installation CD
- check the VM's resources and peripherals:
- ensure there are no floppy drives (!)
- setup CPU and RAM resources
- check virtual drives
- add an SCSI optical drive if needed
- optional: convert the virtual drive images from VMDK to VDI
- mount the CentOS installation disc
- boot on the installation disc:
- select "Troubleshooting", then "Rescue"
- let the rescue utility detect filesystems and mountpoints
$ chrootto the detected environment- backup files:
/etc/fstab/boot/grub/grub.cfg
- under /boot, backup the initrd and initramfs for the current configuration (these will be overwritten)
- compare the current
/etc/fstabwith the output of$ lsblkand$ blkid - if needed, manually edit /etc/fstab to use the appropriate block device UUIDs, identifiers and mountpoints
- regenerate GRUB configuration:
$ grub2-mkconfig -o /boot/grub2/grub.cfg
- if needed, reinstall GRUB:
$ grub-install /dev/sda
- rebuild initrd:
$ mkinitrd --force /boot/<initrd_image> <kernel_version>
- rebuild initramfs:
$ dracut --force <kernel_version>
- exit the chroot
- unmount the installation disc
- reboot
- optional but highly recommended: cross your fingers
- ...
- profit!
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