MobileRead Forums - View Single Post - Needing SD Card Image for Kobo Original N647

blinder · 06-08-2019, 08:56 PM

Hello,

I was just “gifted” with old broken Kobo N647. It stuck in boot sequence.
I pulled SD card out of it and mounted it with USB reader.

Looks like it has 3 partitions on that 2GB SD card.

sdg 1.9G
├─sdg1 257.6M ext2 /run/media/user/9b495e40-43cb-4761-8903-0c17a98650a2
├─sdg2 513.4M ext2 /run/media/user/55119229-71cf-4548-9f75-7c9a43e9aaf1
└─sdg3 1.1G vfat /run/media/user/KOBOeReader

I made an image of that card and mounted it locally on my Linux PC for inspection. After filesystem check and discovered that the second partition ( ext2 513 MB) has some corrupted files. Here is the list:

libQtWebKit.so.4 in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib
libQtXmlPatterns.so.4.6.2 in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib
libQtSql.so.4.6 in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib
libQtSql.so in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib
libQtXml.so in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib
libQtGui.so in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib
libQtXmlPatterns.so in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib
wpa_passphrase in /bin
wpa_cli in /bin
wpa_supplicant in /bin
ntx_hwconfig in /bin
70-persistent-net.rules in /etc/udev/rules.d

Looks like that it the reason preventing me booting up.

I checked whole SD card with badblocks write/read surface test scan and it did not find any issues with SD card. I tried to re-image different SD card with original image I pulled and it is showing the same boot issue. So it looks like it is not SD card issue, but those 12 corrupted files.

They are not zero sized, it looks like they missing some parts in them ;-). The 3rd partition (1.1GB FAT32) looks like to have all intact structure with .kobo folder present.

# ls -lsa /run/media/v/KOBOeReader/.kobo
total 4548
4 drwxr-xr-x 7 v v 4096 Aug 18 2011 .
4 drwxr-xr-x 8 v v 4096 Dec 31 1969 ..
4 drwxr-xr-x 3 v v 4096 Dec 24 2010 adobe
4 -rw-r--r-- 1 v v 25 Aug 18 2011 affiliate.conf
4 drwxr-xr-x 2 v v 4096 Feb 4 2001 'Borders Desktop'
4 -rw-r--r-- 1 v v 80 Feb 4 2001 device.salt.conf
4 -rw-r--r-- 1 v v 10 Aug 18 2011 epoch.conf
52 drwxr-xr-x 2 v v 53248 Feb 4 2001 images
16 drwxr-xr-x 2 v v 16384 Feb 4 2001 kepub
4 drwxr-xr-x 2 v v 4096 Aug 18 2011 Kobo
4436 -rw-r--r-- 1 v v 4542464 Aug 18 2011 KoboReader.sqlite
4 -rw-r--r-- 1 v v 15 Aug 18 2011 timezone.conf
4 -rw-r--r-- 1 v v 2617 Dec 24 2010 Trolltech.conf
4 -rw-r--r-- 1 v v 81 Aug 18 2011 version

I tried to do factory reset, but it did not help. I think one of those smaller partitions might have all the files to generate and apply factory image. Is that true, if so how do I do that?

If there is no way to fix my issue from existing files, I would appreciate original factory image of latest working stable SD card image. Thank you.

06-08-2019, 08:56 PM	#133
blinder Junior Member Posts: 3 Karma: 10 Join Date: Jun 2019 Device: Kobo N647	Hello, I was just “gifted” with old broken Kobo N647. It stuck in boot sequence. I pulled SD card out of it and mounted it with USB reader. Looks like it has 3 partitions on that 2GB SD card. sdg 1.9G ├─sdg1 257.6M ext2 /run/media/user/9b495e40-43cb-4761-8903-0c17a98650a2 ├─sdg2 513.4M ext2 /run/media/user/55119229-71cf-4548-9f75-7c9a43e9aaf1 └─sdg3 1.1G vfat /run/media/user/KOBOeReader I made an image of that card and mounted it locally on my Linux PC for inspection. After filesystem check and discovered that the second partition ( ext2 513 MB) has some corrupted files. Here is the list: libQtWebKit.so.4 in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib libQtXmlPatterns.so.4.6.2 in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib libQtSql.so.4.6 in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib libQtSql.so in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib libQtXml.so in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib libQtGui.so in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib libQtXmlPatterns.so in /usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib wpa_passphrase in /bin wpa_cli in /bin wpa_supplicant in /bin ntx_hwconfig in /bin 70-persistent-net.rules in /etc/udev/rules.d Looks like that it the reason preventing me booting up. I checked whole SD card with badblocks write/read surface test scan and it did not find any issues with SD card. I tried to re-image different SD card with original image I pulled and it is showing the same boot issue. So it looks like it is not SD card issue, but those 12 corrupted files. They are not zero sized, it looks like they missing some parts in them ;-). The 3rd partition (1.1GB FAT32) looks like to have all intact structure with .kobo folder present. # ls -lsa /run/media/v/KOBOeReader/.kobo total 4548 4 drwxr-xr-x 7 v v 4096 Aug 18 2011 . 4 drwxr-xr-x 8 v v 4096 Dec 31 1969 .. 4 drwxr-xr-x 3 v v 4096 Dec 24 2010 adobe 4 -rw-r--r-- 1 v v 25 Aug 18 2011 affiliate.conf 4 drwxr-xr-x 2 v v 4096 Feb 4 2001 'Borders Desktop' 4 -rw-r--r-- 1 v v 80 Feb 4 2001 device.salt.conf 4 -rw-r--r-- 1 v v 10 Aug 18 2011 epoch.conf 52 drwxr-xr-x 2 v v 53248 Feb 4 2001 images 16 drwxr-xr-x 2 v v 16384 Feb 4 2001 kepub 4 drwxr-xr-x 2 v v 4096 Aug 18 2011 Kobo 4436 -rw-r--r-- 1 v v 4542464 Aug 18 2011 KoboReader.sqlite 4 -rw-r--r-- 1 v v 15 Aug 18 2011 timezone.conf 4 -rw-r--r-- 1 v v 2617 Dec 24 2010 Trolltech.conf 4 -rw-r--r-- 1 v v 81 Aug 18 2011 version I tried to do factory reset, but it did not help. I think one of those smaller partitions might have all the files to generate and apply factory image. Is that true, if so how do I do that? If there is no way to fix my issue from existing files, I would appreciate original factory image of latest working stable SD card image. Thank you.