My ipod is driving me crazy (Buffer I/O error on device sdb)

[dataarea]

Hi everyone,

I'm trying since last week to mount my 4th gen (click wheel) ipod via USB on my FC4 box but with no luck.

I recompiled my kernel to disable the EFI_PARTITION.

The Ipod is detected by the system:

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Jul 2 13:39:42 localhost kernel: Vendor: Apple Model: iPod Rev: 1.62
Jul 2 13:39:42 localhost kernel: Type: Direct-Access ANSI SCSI revision: 00
ul 2 13:39:42 localhost kernel: SCSI device sdb: 39063023 512-byte hdwr sectors (20000 MB)
Jul 2 13:39:42 localhost kernel: sdb: Write Protect is off
Jul 2 13:39:42 localhost kernel: sdb: assuming drive cache: write through
Jul 2 13:39:42 localhost kernel: SCSI device sdb: 39063023 512-byte hdwr sectors (20000 MB)
Jul 2 13:39:42 localhost kernel: sdb: Write Protect is off
Jul 2 13:39:42 localhost kernel: sdb: assuming drive cache: write through
Jul 2 13:39:42 localhost kernel: sdb:<7>usb-storage: queuecommand called
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And a few minutes later, the device got disconnected because of those errors:
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Jul 2 13:41:15 localhost kernel: usb 1-2: reset high speed USB device using ehci_hcd and address 2
Jul 2 13:41:31 localhost kernel: scsi: Device offlined - not ready after error recovery: host 0 channel 0 id 0 lun 0
Jul 2 13:41:31 localhost kernel: SCSI error : <0 0 0 0> return code = 0x50000
Jul 2 13:41:31 localhost kernel: end_request: I/O error, dev sdb, sector 64
Jul 2 13:41:31 localhost kernel: Buffer I/O error on device sdb, logical block 64
Jul 2 13:41:31 localhost kernel: scsi0 (0:0): rejecting I/O to offline device
Jul 2 13:41:31 localhost kernel: Buffer I/O error on device sdb, logical block 65
Jul 2 13:41:31 localhost kernel: Buffer I/O error on device sdb, logical block 66
Jul 2 13:41:31 localhost kernel: Buffer I/O error on device sdb, logical block 67
Jul 2 13:41:31 localhost kernel: Buffer I/O error on device sdb, logical block 68
Jul 2 13:41:31 localhost kernel: Buffer I/O error on device sdb, logical block 69
Jul 2 13:41:31 localhost kernel: Buffer I/O error on device sdb, logical block 70
Jul 2 13:41:31 localhost kernel: Buffer I/O error on device sdb, logical block 71
Jul 2 13:41:31 localhost kernel: Buffer I/O error on device sdb, logical block 72
Jul 2 13:41:31 localhost kernel: Buffer I/O error on device sdb, logical block 73
Jul 2 13:41:31 localhost kernel: scsi0 (0:0): rejecting I/O to offline device
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Obviously, I can't mount the ipod. I'm still at the point of having the PC to manage the ipod correctly...

FWIW, I have a usb flash based drive (kingston 512megs) and a usb CF card reader, both are working fine.

The ipod is using a fat partition, not the mac one.

Is there anyone here who could help me to resolve this problem?

Thanks a lot!

[yanik]

I'd like to know if other are having the same issue, as I'm planning on buying one soon. I have a dual boot system with FC4/Ubuntu.

dataarea, did you do a yum update lately? Today I got kernel 2.6.12 via yum, might correct your problem at the same time.

Oh, btw, have a nice jazz fest (I'm going to the Herbaliser concert tomorrow, can't wait!!!)

Yanik

[ben s]

I'm not. My 4G works fine with FC4, but I'm using HFS+, not FAT32 (I doubt that makes a difference, though). I didn't have to recompile my kernel, either. I suspect that maybe the OP turned something off when he recompiled that he shouldn't have.

The only problem I have is that I can't seem to make Linux "let go" of the iPod. Even after ejecting/unmounting and modprobe -r for all the driver modules, I still have the "Do Not Disconnect" message on the iPod. In FC3, removing the sbp2 module would disconnect the iPod successfully.

[dataarea]

Originally Posted by ben s

I'm not. My 4G works fine with FC4, but I'm using HFS+, not FAT32 (I doubt that makes a difference, though). I didn't have to recompile my kernel, either. I suspect that maybe the OP turned something off when he recompiled that he shouldn't have.

Well. I only deselected the EFI_PARTITION. If I understand your post correctly, your ipod worked fine with the standard FC kernel, you did not have to change anything?

Out of curiosity, are using a USB or a firewire connection?

[ben s]

I've used both USB and Firewire with this machine/installation of FC4 -- no problems (so far).

[yanik]

ben s, which generation/version is your ipod?

[ben s]

Originally Posted by yanik

ben s, which generation/version is your ipod?

4G == 4th generation. It's a 20GB model, model P9282LL to be exact :-)