Author Topic: accessing usb device file system  (Read 6574 times)

Lorcan

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accessing usb device file system
« on: July 25, 2013, 05:40:29 pm »
Hey all,

have this ebook reader Iriver cover story for some time now.
would like to hack it, since it 's a linux based system.
however, when attaching the device to a usb port, can only access the disks, the local drive (sdc) and the attached sd card (sdd).
not the OS itself.
would like to access the place where the firmware is installed.
have downloaded the firmware and extracted it from *.hex to a *.zip en then to a fully tree directory.
but would like to see it when it is working on the device itself.
it could give me an insight into what uses what and how from startup to running the file sequence.

have tried everything on this page
http://vanderwijk.info/blog/hacking-the-iriver-story-eb02-e-reader/
but it can only get me so far.


when typing dmesg  in bash terminal on my laptop
this is my result;


[ 7911.704056] usb 1-3: new high-speed USB device number 3 using ehci_hcd
[ 7911.837013] usb 1-3: New USB device found, idVendor=1006, idProduct=4025
[ 7911.837023] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 7911.837030] usb 1-3: Product: iriver
[ 7911.837035] usb 1-3: Manufacturer: iriver
[ 7911.837041] usb 1-3: SerialNumber: 372041756775
[ 7911.838039] scsi7 : usb-storage 1-3:1.0
[ 7912.836795] scsi 7:0:0:0: Direct-Access     iriver   Story EB05       0323 PQ: 0 ANSI: 2
[ 7912.837319] scsi 7:0:0:1: Direct-Access     iriver   Story SD         0323 PQ: 0 ANSI: 2
[ 7912.838468] sd 7:0:0:0: Attached scsi generic sg3 type 0
[ 7912.839477] sd 7:0:0:1: Attached scsi generic sg4 type 0
[ 7912.841435] sd 7:0:0:0: [sdc] 3000001 512-byte logical blocks: (1.53 GB/1.42 GiB)
[ 7912.841789] sd 7:0:0:1: [sdd] 15636480 512-byte logical blocks: (8.00 GB/7.45 GiB)
[ 7912.944820] sd 7:0:0:0: [sdc] Write Protect is off
[ 7912.944831] sd 7:0:0:0: [sdc] Mode Sense: 0f 00 00 00
[ 7913.049794] sd 7:0:0:1: [sdd] Write Protect is off
[ 7913.049799] sd 7:0:0:1: [sdd] Mode Sense: 0f 00 00 00
[ 7913.155060] sd 7:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 7913.259823] sd 7:0:0:1: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 7913.687547]  sdd:
[ 7913.793811]  sdc:
[ 7913.898452] sd 7:0:0:1: [sdd] Attached SCSI removable disk
[ 7914.118577] sd 7:0:0:0: [sdc] Attached SCSI removable disk
[ 7914.846686] FAT-fs (sdc): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
[ 7914.853481] FAT-fs (sdd): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!

anyone interested in teaching a newbie?
Kind regards,
Lorcan

Jan Axelson

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Re: accessing usb device file system
« Reply #1 on: July 25, 2013, 10:01:55 pm »