[kindle2] mounted read only on linux

[mistnim]

Hello I use debian jessie, I tried to use the kindle without problems on windows.
When I connect the device on linux it tells me:

DeviceError: The main memory of KINDLE2 is read only. This usually happens because of file system errors.

So I did:

sudo fsck.vfat -r /dev/sdb1
fsck.fat 3.0.26 (2014-03-07)
0x41: Dirty bit is set. Fs was not properly unmounted and some data may be corrupt.
1) Remove dirty bit
2) No action
? 1
Perform changes ? (y/n) y
/dev/sdb1: 42 files, 10279/177743 clusters

then:

sudo umount /dev/sdb1

Unplug and plug again the usb calbe. Start Calibre but still it gives the same problem. And if I try to do the fsck again it gives me the same result:

sudo fsck.vfat -r /dev/sdb1
fsck.fat 3.0.26 (2014-03-07)
0x41: Dirty bit is set. Fs was not properly unmounted and some data may be corrupt.
1) Remove dirty bit
2) No action
? 1
Perform changes ? (y/n) y
/dev/sdb1: 42 files, 10279/177743 clusters

So I have no idea what to try now.

[kovidgoyal]

I doubt it is fsck problem, your device is probably being mounted as some user other than yourself, leading to it being readonly for calibre. Either run calibre as root or ask in a debian forum on how to get your device mounted as your own user account.