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e260 slow and not showing up when plugged in, though sd card is

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Jetsetlemming:
I'm running Ubuntu 9.10, and my Sansa's about a year and a half old now, and up until now has worked perfectly.
I've had Rockbox on it for a while now. However, yesterday, after an update to the latest version of rockbox, after a while the system decided it quit. It started freezing on boot, in both Rockbox and Sansa firmware modes. I found the "unbricking" guide here, went into Recovery mode, and installed the 1.02.15a firmware (from here). This made the system boot, however, when I plug it into the computer only the MicroSD card actually shows up, not the sansa's own hard drive. If I switch the USB mode to MSC, the MicroSD card disappears, and the base directory pops up.
Under neither of these modes is the device detected at all by Rockbox Util. In MSC, the Sansa's directory is apparently "gphoto2://[usb:001,009]/", and Rockbox Util won't accept this as a valid address.
I managed to install Rockbox anyway, using the manual installation instructions, and that succeeded. In the non-MSC mode (can't remember the name), where only the MicroSD card is visible in the OS, the terminal commands to install the bootloader worked. I was hoping this would cure the above problem of the different parts of the player being invisible, but it didn't, and now I can't seem to change the USB mode anymore, so I no longer have any access at all to the sansa's internal hard drive. Pasting gphoto2://[usb:001,009]/ or /[usb:001,009]/ in a folder address bar says either "Error initializing camera: Unknown model" or "Nautilus cannot handle this location", respectively.

Help? :(

evilnick:
http://www.rockbox.org/wiki/LibGphoto2Bug should explain this behaviour.

gevaerts:
I suspect that the filesystem is seriously corrupted. Also, I think you're confusing MSC and MTP.

Jetsetlemming:

--- Quote from: evilnick on November 13, 2009, 11:27:42 AM ---http://www.rockbox.org/wiki/LibGphoto2Bug should explain this behaviour.

--- End quote ---
After doing the fix on that page (After taking quote a while trying to figure out how to get the Terminal to the right folder so I could sudo the file so I could actually save the changes), now I just get the error "Unable to mount Sansa 260: Error Initializing Camera -60 Could Not Lock The Device".
Why wouldn't the error in that bug report already be fixed and integrated into general ubuntu? It was from the last version, and reported and fixed back in April.
I went through the process listed on that page to update lbgphoto to the latest version, and that didn't have any change at all.

--- Quote from: gevaerts on November 13, 2009, 11:33:17 AM ---I suspect that the filesystem is seriously corrupted. Also, I think you're confusing MSC and MTP.

--- End quote ---
How would my filesystem get corrupted, and how can I fix it? Also, I've confirmed which setting has which effect. In MTP I can only see the player, as "Gphoto", in MSC I can only see the MicroSD card, which it names "2.0GB Filesystem".

Edit:
When I plug the sansa in, this is what is reported in syslog:

--- Quote ---Nov 14 05:47:47 gabe-desktop kernel: [ 1246.904323] hub 1-0:1.0: unable to enumerate USB device on port 6
Nov 14 05:47:47 gabe-desktop kernel: [ 1247.292065] usb 1-6: new high speed USB device using ehci_hcd and address 6
Nov 14 05:47:47 gabe-desktop kernel: [ 1247.447620] usb 1-6: configuration #1 chosen from 1 choice
Nov 14 05:47:47 gabe-desktop kernel: [ 1247.452302] scsi3 : SCSI emulation for USB Mass Storage devices
Nov 14 05:47:47 gabe-desktop kernel: [ 1247.452753] usb-storage: device found at 6
Nov 14 05:47:47 gabe-desktop kernel: [ 1247.452758] usb-storage: waiting for device to settle before scanning
Nov 14 05:47:47 gabe-desktop kernel: [ 1247.461027] input: Rockbox.org Rockbox media player as /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.1/input/input7
Nov 14 05:47:47 gabe-desktop kernel: [ 1247.461363] generic-usb 0003:0781:7421.0005: input,hidraw0: USB HID v1.10 Keyboard [Rockbox.org Rockbox media player] on usb-0000:00:1d.7-6/input1
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.464173] usb-storage: device scan complete
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.476170] scsi 3:0:0:0: Direct-Access     Rockbox  Internal Storage 0.00 PQ: 0 ANSI: 4
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.488162] scsi 3:0:0:1: Direct-Access     Rockbox  SD Card Slot     0.00 PQ: 0 ANSI: 4
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.489686] sd 3:0:0:0: Attached scsi generic sg3 type 0
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.490040] sd 3:0:0:1: Attached scsi generic sg4 type 0
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.513339] sd 3:0:0:0: [sdb] 7854080 512-byte logical blocks: (4.02 GB/3.74 GiB)
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.521294] sd 3:0:0:0: [sdb] Write Protect is off
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.521304] sd 3:0:0:0: [sdb] Mode Sense: 0b 00 00 08
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.521311] sd 3:0:0:0: [sdb] Assuming drive cache: write through
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.532322] sd 3:0:0:1: [sdc] 3842048 512-byte logical blocks: (1.96 GB/1.83 GiB)
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.540458] sd 3:0:0:1: [sdc] Write Protect is off
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.540494] sd 3:0:0:1: [sdc] Mode Sense: 0b 00 00 08
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.540501] sd 3:0:0:1: [sdc] Assuming drive cache: write through
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.557123] sd 3:0:0:0: [sdb] Assuming drive cache: write through
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.557140]  sdb: sdb1 sdb2
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.563304] sd 3:0:0:1: [sdc] Assuming drive cache: write through
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.563322]  sdc: sdc1
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.593375] sd 3:0:0:0: [sdb] Assuming drive cache: write through
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.593390] sd 3:0:0:0: [sdb] Attached SCSI removable disk
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.604976] sd 3:0:0:1: [sdc] Assuming drive cache: write through
Nov 14 05:47:52 gabe-desktop kernel: [ 1252.604991] sd 3:0:0:1: [sdc] Attached SCSI removable disk
--- End quote ---

Chronon:

--- Quote from: Jetsetlemming on November 14, 2009, 05:55:28 AM ---How would my filesystem get corrupted, and how can I fix it? Also, I've confirmed which setting has which effect. In MTP I can only see the player, as "Gphoto", in MSC I can only see the MicroSD card, which it names "2.0GB Filesystem".

--- End quote ---
It can happen by unplugging the player while it's still mounted.  Try:  fsck.vfat

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