Today, 04:28 AM
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#1 |
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Connoisseur
  
Posts: 81
Karma: 2136220
Join Date: Apr 2017
Location: Mexico
Device: Kindle Keyboard Oasis
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How to deal with lossing your calibre library
I don't know how to deal with this.
2 weeks ago one of my pc discs crashed, the one where I had my calibre library and also my collection of fanfics from the past 20 years or so. I'm trying to see if I can recover some of the information on the disc, is going to be really, really costly but I just... so many years, so many books, stories, fandoms, I just don't know what to do. Be well, Monica |
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Today, 04:38 AM
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#2 |
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Wizard
Posts: 1,653
Karma: 9500498
Join Date: Sep 2021
Location: Australia
Device: Kobo Libra 2
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Do you have a single disk in your pc? ie, was everything saved on your c:\ drive?
Or do you have more than one disk? |
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Today, 05:23 AM
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#3 | |
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Resident Curmudgeon
Posts: 80,448
Karma: 150249609
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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Quote:
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Today, 05:39 AM
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#4 | |
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The Grand Mouse 高貴的老鼠
Posts: 74,292
Karma: 317731092
Join Date: Jul 2007
Location: Norfolk, England
Device: Kindle Oasis
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Quote:
For recovering the disk, a lot depends on how the disk has crashed, and whether it's an internal or external disk. If it's not a physical problem, but some bad data written to the disk meaning it won't mount properly, commercial data recovery software should be able to help. In this instance the FIRST thing to do is to get another disk of the same size, and make a bit-for-bit copy of the old disk onto the new disk, and work on the new disk with recovery software. For extra safety, two disks, and make one copy onto one disk, and then copy from that to the other new disk to try out the recovery software. If the fault is a physical failure, is the fault in the disk itself, the electronics on the disc, or (if external) in the external controller or power supply? If in the disk itself - that is, the electronics respond, but won't read any data, then you have no option but a specialist recovery firm that has a clean room. If it's an external disk, the solution might be as simple as switching the disk to a new enclosure. It's its the electronics on the disk itself, you *MIGHT* be able to fix it by buying another of the EXACT SAME MODEL, include as closely as possible, the same manufacture date, and swapping the electronics. The difficult bit is finding a 'donor' disk. Actually swapping over the PCBs is simple. (I have done this ONCE, many years ago.) |
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Today, 07:13 AM
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#5 |
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Still reading
Posts: 14,773
Karma: 109269703
Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper
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Yes. I swapped PCBs once due to a friend's PSU blowing most of the chips.
However newer disks have parameters in Flash memory so it doesn't work. Also of course there are SSDs, which are only a PCB and fail without warning. Next time make backups on at least a USB HDD (not a memory stick, BD or DVD and not solely on the so called "cloud" which is just someone else's computer). |
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Today, 07:18 AM
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#6 |
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Still reading
Posts: 14,773
Karma: 109269703
Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper
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Occasionally I had drives years ago that stopped "spinning up". I found that putting computer so disk was vertical sometimes helped, or sometimes removing drive from mount and keeping it connected and rocking gently vertically on the spindle axis (spindle / motor horizontal) let the disc spin up. Have additional disk ready to copy to.
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Today, 12:53 PM
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#7 |
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Grand Sorcerer
Posts: 13,866
Karma: 243276973
Join Date: Jan 2014
Location: Estonia
Device: Kobo Sage & Libra 2
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I hope you'll get your books back. It would be heartbreaking if not.
Always keep back-up copies - on external hard drives and/or in cloud storage (Dropbox, OneDrive and so on). Even better, keep multiple copies in different places. Just a couple of months ago I inadvertently destroyed one of my photo folders by accidentally moving it to another location. Problem was, it was a huge folder and there was not enough space on my disk to do the move. Something went wrong and lots of photos just vanished, they weren't in the recycle bin either. Fortunately I had backup copies, so I could restore the folder. Accidents and failures do happen. My thoughts are with you. Best of luck. Last edited by Sirtel; Today at 12:55 PM. |
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Today, 02:32 PM
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#8 |
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Wizard
Posts: 1,575
Karma: 36389706
Join Date: Dec 2009
Location: Quincy, MA
Device: Samsung 54A, Kobo Libra H2O, Samsung S6 Lite
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Runs to reback up all music and books on to my various devices! Thanks!
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Today, 03:22 PM
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#9 |
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Guru
Posts: 699
Karma: 860470
Join Date: May 2025
Device: Kobo Forma
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Imho you can try also some of those tools onto GNU/linux ecosystem, to try to recover some data, or the disk (if it's possible).
https://www.cgsecurity.org/wiki/PhotoRec (this can recover also other kind of files, not only photos). Or creating a bootable USB with this set of programs: https://www.system-rescue.org/ Here are some lists of tools, too: https://wiki.archlinux.org/title/File_recovery |
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