* Re: Removable USB device contents cached after removal?
@ 2004-01-01 11:48 Vid Strpic
2004-01-01 18:41 ` USB Digital Camera mount problem [WAS: Removable USB device contents cached after removal?] Jeff Sipek
0 siblings, 1 reply; 2+ messages in thread
From: Vid Strpic @ 2004-01-01 11:48 UTC (permalink / raw)
To: Matthew Mastracci; +Cc: linux-kernel
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On Wed, Dec 31, 2003 at 05:12:16PM -0700, Matthew Mastracci wrote:
[...]
> 1. Insert card into reader.
> 2. Mount card as directory somewhere in root filesystem, list contents
> of card
> 3. dd if=/dev/sdd1 count=1024 bs=1024 | hexdump
> - results in correct filesystem dump
> 4. Remove card from reader.
> 5. dd if=/dev/sdd1 count=1024 bs=1024 | hexdump
> - same filesystem dump as before!
> 6. cd to mountpoint, contents are still available
> 7. dd if=/dev/sdd1 of=/dev/null
> - approx 3MB of card data still available
> 8. umount the mountpoint from before
Did you try `eject sdd` after this, and if not, try, and see how it
works.
> 9. dd if=/dev/sdd1 of=/dev/null results in "No medium found"
usb-storage behaves differently in 2.6 than in 2.4, maybe this is the
problem for you now.
--
vms@bofhlet.net, IRC:*@Martin, /bin/zsh. C|N>K
Linux moria 2.6.0-mm2 #1 Tue Dec 30 10:21:33 CET 2003 i686
12:46:44 up 1 day, 23:08, 11 users, load average: 0.94, 0.68, 0.69
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^ permalink raw reply [flat|nested] 2+ messages in thread* USB Digital Camera mount problem [WAS: Removable USB device contents cached after removal?]
2004-01-01 11:48 Removable USB device contents cached after removal? Vid Strpic
@ 2004-01-01 18:41 ` Jeff Sipek
0 siblings, 0 replies; 2+ messages in thread
From: Jeff Sipek @ 2004-01-01 18:41 UTC (permalink / raw)
To: Vid Strpic, Matthew Mastracci; +Cc: linux-kernel
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On Thursday 01 January 2004 06:48, Vid Strpic wrote:
> > 9. dd if=/dev/sdd1 of=/dev/null results in "No medium found"
>
> usb-storage behaves differently in 2.6 than in 2.4, maybe this is the
> problem for you now.
I get "No medium found" when I try to mount the SD card inside my digital
camera (Panasonic DMC-LC33.) It works fine in 2.4.18 that comes with Debian,
but I get the above message in 2.6.0 (and couple of releases before it - it
is a fairly new camera, ~2 months old.)
Any ideas how to debug it?
Jeff.
When plugged in:
kernel: hub 2-2:1.0: new USB device on port 4, assigned address 3
kernel: Initializing USB Mass Storage driver...
kernel: scsi1 : SCSI emulation for USB Mass Storage devices
kernel: Vendor: MATSHITA Model: DMC-LC33 Rev: 0100
kernel: Type: Direct-Access ANSI SCSI revision: 02
kernel: SCSI device sda: 246017 512-byte hdwr sectors (126 MB)
kernel: sda: Write Protect is off
kernel: sda: Mode Sense: 00 06 00 00
kernel: sda: assuming drive cache: write through
kernel: sda: sda1
kernel: Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0
kernel: Attached scsi generic sg0 at scsi1, channel 0, id 0, lun 0, type 0
kernel: WARNING: USB Mass Storage data integrity not assured
kernel: USB Mass Storage device found at 3
kernel: drivers/usb/core/usb.c: registered new driver usb-storage
kernel: USB Mass Storage support registered.
scsi.agent[22366]: disk at /devices/pci0000:00/0000:00:1f.4/
usb2/2-2/2-2.4/2-2.4:1.0/host1/1:0:0:0
When I try to mount it, mount refuses, but there are no log messages:
jeff:~# mount /dev/sda1 /mnt/camera/
mount: No medium found
jeff:~#
And when I shut the camera off, I get:
kernel: usb 2-2.4: USB disconnect, address 3
The modules:
jeff:~# lsmod
Module Size Used by
usb_storage 34688 0
nvidia 1704492 10
tvaudio 21888 0
msp3400 22928 0
bttv 140704 1
video_buf 22400 1 bttv
i2c_algo_bit 10248 1 bttv
btcx_risc 5252 1 bttv
v4l2_common 5376 1 bttv
videodev 10368 2 bttv
uhci_hcd 31240 0
usbcore 109012 4 usb_storage,uhci_hcd
evdev 10496 0
tuner 15108 0
i2c_core 24964 5 tvaudio,msp3400,bttv,i2c_algo_bit,tuner
eepro100 31244 0
mii 5632 1 eepro100
- --
You measure democracy by the freedom it gives its dissidents, not the
freedom it gives its assimilated conformists.
- Abbie Hoffman
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2004-01-01 11:48 Removable USB device contents cached after removal? Vid Strpic
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