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Old 03-08-2022, 05:35 AM   #1
Uncle Robin
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[Kobo] Sage reboots when deleting books via Calibre
I'm not sure where the fault lies with this, but since it happens when using Calibre, I'm reporting it here. On the last two occasions that I have deleted batches of books by selecting "library and device", when the process is finished and I eject my Sage, the "importing content" progress bar shows up, then when the progress bar reaches the end, the devices reboots into the "Welcome to Kobo" screen and invites me to select a Wifi Network to begin the process of intialising the device. Happily, powering the device off then powering it back on restores the device to the previous state, minus the books that were successfully deleted. I'm about to downgrade to kobo 4.30 from 4.31 to see if that helps, but if there are any other suggestions, I'd be happy to hear them.
Last edited by Uncle Robin; 03-08-2022 at 01:38 PM.
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Old 03-08-2022, 06:37 AM   #2
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I am pretty sure that is a side effect of the general issues with firmware 4.31 and the issues with connecting to the device. The issue is that something on the device is not letting the books partition unmount properly. And then all sorts of things happen. In this case, I suspect that when the device remounts the partition, it is mounted read-only. I have had some similar behaviour and was able to telnet in and see how the partition was mounted. As you found rebooting fixed it as the database hadn't been updated.

It's not strictly a calibre issue. The device was in a state where anything that accessed the database would have caused this. And I am not sure if it needed anything to access the database. It might have happened if you just accessed the drive. And if you had the scan-disk prompt from Windows and didn't, that might have been the trigger.
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Old 03-08-2022, 01:41 PM   #3
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Thanks David, I think I did get a scan disk prompt which I ignored. It will be interesting to see if it recurs now that my Sage is back to 4.30
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Old 03-08-2022, 04:06 PM   #4
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Thanks David, I think I did get a scan disk prompt which I ignored. It will be interesting to see if it recurs now that my Sage is back to 4.30
It was not just the Sage. My Libra2 had massive USB connection issue. It damaged the DB almost every time I transferred.
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Old 03-08-2022, 04:11 PM   #5
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It was not just the Sage. My Libra2 had massive USB connection issue. It damaged the DB almost every time I transferred.
As @davidfor said, this seems to be an issue with the 4.31 firmware and the exposed partition is not being unmounted properly before being exposed to the USB connection.
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Old 03-08-2022, 04:12 PM   #6
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It was not just the Sage. My Libra2 had massive USB connection issue. It damaged the DB almost every time I transferred.
Yes, I'd been reading about the Libra 2 problems. My Sage was not affected when I connected to update reading progress or to ADD books, only when I deleted. So I consider myself lucky.
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Old 03-09-2022, 11:59 AM   #7
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Fwiw, I just deleted some 20 books in 3 or 4 batches, and my Sage (back on 4.30) behaved itself perfectly on ejecting it via Calibre, despite having again ignored the "there's a problem with this drive" message. So I'm putting the blame on 4.31
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Old 03-09-2022, 01:06 PM   #8
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Fwiw, I just deleted some 20 books in 3 or 4 batches, and my Sage (back on 4.30) behaved itself perfectly on ejecting it via Calibre, despite having again ignored the "there's a problem with this drive" message. So I'm putting the blame on 4.31
The drive is really corrupted. You should use Windows to correct that befor you lose other stuff.
A clue that 4.31 has issues, was multiple (USB device) connect/disconnect sounds (and the Kobo connect screen also seemed to repeat)
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Old 03-09-2022, 06:32 PM   #9
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The drive is really corrupted. You should use Windows to correct that befor you lose other stuff.
A clue that 4.31 has issues, was multiple (USB device) connect/disconnect sounds (and the Kobo connect screen also seemed to repeat)
The "there's a problem with this drive" message only comes up occasionallly, and not at all when I connect my device to USB while running KOReader, only Nickel. The behavior also matches that you describe with multiple USB connect/disconnect sounds and the kobo connect screen repeating. Again, not consistently and never in KOReader.
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Old 03-10-2022, 02:04 AM   #10
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The drive is really corrupted. You should use Windows to correct that befor you lose other stuff.
A clue that 4.31 has issues, was multiple (USB device) connect/disconnect sounds (and the Kobo connect screen also seemed to repeat)
I usually do the scan when the prompt is shown, but, I have rarely found the filesystem had any actual problems. But, the filesystem has the dirty flag set which is why the prompt is shown. The most likely reason for this is that something has a file opened and it was not released when the device attempted to unmount the partition. The problem for Kobo is working out what it is and why. And that's a fairly hard thing to do with the timing. The network gets turned off, so you cannot use telnet. The can use other means, but they have to see it happen. And they haven't. I am not seeing it consistently either.

If using KOReader the behaviour will be different. They don't work the same way, so hopefully they don't have the same bugs.
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Old 03-10-2022, 03:13 AM   #11
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I usually do the scan when the prompt is shown, but, I have rarely found the filesystem had any actual problems. But, the filesystem has the dirty flag set which is why the prompt is shown. The most likely reason for this is that something has a file opened and it was not released when the device attempted to unmount the partition. The problem for Kobo is working out what it is and why. And that's a fairly hard thing to do with the timing. The network gets turned off, so you cannot use telnet. The can use other means, but they have to see it happen. And they haven't. I am not seeing it consistently either.

If using KOReader the behaviour will be different. They don't work the same way, so hopefully they don't have the same bugs.

I made a point of connecting my Sage while in Nickel, to see and accept the "scan this disk?" message, but of course doing so guaranteed that I did not get the "there's a problem" message from Windows
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