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Old 11-18-2025, 11:35 AM   #3
JSWolf
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Quote:
Originally Posted by lucask View Post
I’m running Calibre 8.4 on Linux and have a very large library I’ve been maintaining for over a decade (around 19k files, ~180 GB). My laptop recently crashed and my only option now is to reinstall the OS.

Using a live USB, I was able to launch Calibre and use the Export Library tool to back up the library in multiple .calibre-data parts, which I’m currently uploading to Dropbox. Before I wipe the drive, I’d like some guidance:

- If in my new Calibre install the import fails for some reason, can I manually recover the old directory structure from all the .calibre-data files?
- Is there a reliable way to verify that the Dropbox uploads are complete and uncorrupted?
- ISince I don’t have access to another machine to test the restore, is there any way to confirm in advance that the exported parts will restore correctly?

More broadly, what would you do in my position?
Don't rely on Dropbox as your only backup. And don't rely on an export as your only backup. I've read of some people having problems importing an export. Your best solution would be to get a USB stick or external hard drive of large enough size and backup your entire drive. In most cases, when you install the OS, you don't have to wipe the drive as long as the drive is OK. So you'd have a full backup and maybe no need to restore the backup.
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