Wow, that was lousy. Disk errors started to show up last week — but they were sporadic and it seemed on several occasions that they’d been fixed, only to pop up in another place. By the time I’d resolved to replace the hard drive and started to shop around, the folks at my co-location facility had already headed home for the weekend. That wasn’t great (I’ll admit, I didn’t ask them to escalate the issue), but they did have good replacement drives on hand for sale at cost, and Monday morning they plugged a new drive in. A few hours later the site and all of the files (90+ GB) were in place, and the site was back… except for a few problems.
One of the things I’d done when trying to fix the reported disk errors was update the OS, which usually isn’t a problem — but this time it looks like it messed up wine, the Windows non-emulator that manybooks uses to run mobigen.exe, which generates Mobipocket (.mobi & .prc) and Kindle (.azw) files. Luckily, Kovid Goyal’s Calibre can generate mobipocket and other formats; it’s a bit slower than wine+mobigen.exe, but it’s pretty reliable and easy to work with. I can recommend it for desktop use, and encourage you to donate towards its development (I have!).