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Old 12-03-2014, 07:14 AM   #1
quantumcat76
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KOBO Glo: SD card - Processing Content
Hi All,

I have an issue with my KOBO Glo.
Off late, I have to reinstall my KOBO if I don't recharge it regularly.
Before, when I forgot to recharge it, all I had to do was connect a charger and boot.
Now I have to reinstall the software.

Since the last time that that happened, a week ago, I now face this problem:
When I inster the SD card, it doesn't finish processing content. Yesterday I inserted it and this morning it was stuck at 94%

Processing the SD card content used to take minutes.
Now hours, if it completes.

This is the same SD card I have been using the last 6 months without problems. I already checked the SD card with my laptop for problems,
none were found.

Does anyone have ideas?


I have found similar threads about this, but none really describes the same problems. They mostly discuss problems with different SD card brands to begin with, this card used to work fine -until I had to reinstall and reprocess -resynch or however you want to call it.

I realised that haven't checked with a different SD card. But since no problems were found accessing & reading the card on my laptop, I ruled that out.
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Old 12-03-2014, 07:45 AM   #2
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Quote:
Originally Posted by quantumcat76 View Post
Now I have to reinstall the software.
What exactly do you mean when you say you have to reinstall the software? Do you factory reset the device? Or do you install a firmware update package anew? And what is the device doing that makes you know that you have to reinstall the software?

You refer to "off late" and "before." Did the firmware version of your device change between those two points? Or is it still the same one?
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Old 12-03-2014, 07:56 AM   #3
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Personally, I would be more worried about the problems with the device needing to be setup again if the battery runs out. Does this happen if you power the device off? If so, the internal micro SD card might be failing. Replacing it might fix this.

And if it is, then it might explain the problem with processing the books on the external card. The database that contains all the details of the books is stored on the internal card. If there are problems writing that database to the disk, it would slow things down and might cause a complete failure.

What firmware version and how many books are on the card and the internal memory? In the last couple of weeks, I have reloaded about 1200 books on the SD card into my Touch. I've actually done this twice after logging out on the device. Each time the books processing took somewhere between 1 and 2 hours. I meant to time it, but I wasn't paying attention to it when I finished.

The only other thing I can think of is if there is a broken book causing problems. Usually this means the processing finished but the books don't get added. But, a hang like did happen with older firmware with bad books.

Actually, another possibility is power. Can you leave the device plugged in to a charger while the books are being processed? This is a CPU and IO intensive process, so the extra power might help.
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Old 12-03-2014, 07:56 AM   #4
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Quote:
Originally Posted by tshering View Post
What exactly do you mean when you say you have to reinstall the software? Do you factory reset the device? Or do you install a firmware update package anew? And what is the device doing that makes you know that you have to reinstall the software?
It reboots and than it gives me the choice betweeb "setup from wireless" or "setup via PC".

Quote:
Originally Posted by tshering View Post
You refer to "off late" and "before." Did the firmware version of your device change between those two points? Or is it still the same one?
Not that I am aware of. Before and off-late means: it started about 3 weeks ago.

I remember forgetting to recharge it the time before, 4 wks ago, approx.
No issues with booting, no issues with processing the SD content.
But it had issues opening books. Most were opened as empty, 0 pages.
And being incredibly slow.
So a hard reset with a paper clip that solved EVERYTHING.

Unfortunately, I forgot to recharge it afterwards and, well, that's where we are now.
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Old 12-03-2014, 07:59 AM   #5
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Originally Posted by davidfor View Post
Actually, another possibility is power. Can you leave the device plugged in to a charger while the books are being processed? This is a CPU and IO intensive process, so the extra power might help.
I already did. It froze at 94%

As I said, I don't think it's a broken book, as the card tested ok and I used this setup for the last 6 months, but it is an interesting angle to check out.
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Old 12-03-2014, 08:06 AM   #6
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Quote:
Originally Posted by quantumcat76 View Post
I already did. It froze at 94%

As I said, I don't think it's a broken book, as the card tested ok and I used this setup for the last 6 months, but it is an interesting angle to check out.
So, how many books are on the card? And have you added any recently? Any new books could be the problem.
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Old 12-03-2014, 08:11 AM   #7
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Originally Posted by quantumcat76 View Post
It reboots and than it gives me the choice betweeb "setup from wireless" or "setup via PC".
This sounds as if the data base is not correctly written to disc. Maybe such things can happen if the device is running on low power. You could make a back up copy of the data base (KoboReader.sqlite in .kobo) at certain intervals and next time the device asks you to set it up, you can copy the saved data base back to the device. The information on the data base will probably not be up to date, but maybe this is better than setting the device up anew.
Last edited by tshering; 12-03-2014 at 08:32 AM.
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Old 12-03-2014, 08:26 AM   #8
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So, how many books are on the card? And have you added any recently? Any new books could be the problem.
a lot -it's a 16Gb card, and yes, some added recently, but it was processed correctly at least once, before... it hit the fan.
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Old 12-03-2014, 06:13 PM   #9
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a lot -it's a 16Gb card, and yes, some added recently, but it was processed correctly at least once, before... it hit the fan.
OK, a full 16GB card with several thousand books on it? Have they all been processed in one go before? Or have you gradually been adding to the card so it has built up to this size? Once the books are processed into the internal database, they stay there. New books are added and removed books are deleted.

If the whole card has been processed in one go, do you remember what firmware version it was? People reported a big slowdown in processing the SD card a few versions ago. Someone, I think DNSB, says that when he does a factory reset, he installs one version of the firmware, gets it to process the books on the card, and then upgrades to the latest firmware. A pain, but, he was finding it quicker. I'm not sure if it is still the case, and unfortunately, I don't remember exactly which firmware he used.

And tshering's suggestion to backup the database is a good idea. If this happens again, you can load the old database and only have to deal with the changes.
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Old 12-05-2014, 03:38 AM   #10
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I haven't tried using an SD card with less books (yet).
And normally I'd say, YES, I have been gradually adding.
But I this is the second factory reset I did.

The first one, took me about an hour or so -I don't know ...a long time...- to load the same 16Gb card with the same books.

Point is: it worked.
But, now, after the second factory reset, I get stuck at 94% after 8 hours or so ("overnight").

But I will try to add an SD with less books.
Last edited by quantumcat76; 12-05-2014 at 03:46 AM.
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Old 12-05-2014, 04:51 AM   #11
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Personally, I would be more worried about the problems with the device needing to be setup again if the battery runs out. Does this happen if you power the device off? If so, the internal micro SD card might be failing. Replacing it might fix this.
Actually I do -as well.
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Old 12-05-2014, 05:02 AM   #12
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Quote:
Originally Posted by quantumcat76 View Post
I haven't tried using an SD card with less books (yet).
And normally I'd say, YES, I have been gradually adding.
But I this is the second factory reset I did.

The first one, took me about an hour or so -I don't know ...a long time...- to load the same 16Gb card with the same books.

Point is: it worked.
But, now, after the second factory reset, I get stuck at 94% after 8 hours or so ("overnight").

But I will try to add an SD with less books.
Sorry, my point was did it work with this firmware version before? Or did it work with an older one? There are reports that loading from an SD card got suddenly slower with a firmware version. If you haven't done the full load since before that version, it helps explain what is happening. It doesn't mean it is good or that it isn't something we want Kobo to fix, but it gives us a place to go.

If it is the speed of the firmware version, you could put the older on, load the card and then upgrade. Not an attractive thing to do, but it will get you were you want.

The alternative is to remove a lot of books from the card and put them on in smaller groups.

The other thing is that if it did load the books from the card with the current firmware version and doesn't after a factory reset, that really points to a hardware problem. Of course, the other problem you have also suggests a hardware problem.
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Old 12-05-2014, 06:22 AM   #13
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Unfortunately I haven't checked the firmware versions.
As I said, I did two factory resets in the last month -2 weeks in between, approximately.
And with the first, I could load the books from the card, the second ... hence my post in this topic.
I used the same kobosetup file I downloaded from their website (I did not download again)
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Old 12-05-2014, 06:24 AM   #14
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Originally Posted by davidfor View Post
The other thing is that if it did load the books from the card with the current firmware version and doesn't after a factory reset, that really points to a hardware problem. Of course, the other problem you have also suggests a hardware problem.
That is something to look into.
Is it a hardware issue, or has the software become corrupt?

I'm not sure what I install after a factory reset. Is that the latest update or is it really the whole OS?

I want to experiment with a new SD card over the weekend.
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Old 12-05-2014, 06:39 AM   #15
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That is something to look into.
Is it a hardware issue, or has the software become corrupt?

I'm not sure what I install after a factory reset. Is that the latest update or is it really the whole OS?
A factory reset formats the rootfs partition and the user partition. Then it installs firmware from the recoveryfs and restarts. The install writes the uboot and kernel to the appropriate parts of the card. The rest is simply unpacked to the rootfs.

After the reboot, the device looks for an updated firmware. If it finds one, it installs it in exactly the same way as above.
Quote:
I want to experiment with a new SD card over the weekend.
That's probably a good experiment.
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