On Sat, 21 Aug 2010, Marco d'Itri wrote:
Is a partition needed or not? In your first message you tried to mount
the raw device.
A partition is needed. Since only /dev/sdb was available, I was only
trying to force reading the device, in the hope that the partition table
would be read.
Did the kernel actually report reading a partition table on the card?
Does /sys/block/sdb/sdb1/ exist?
If it does, does "echo add > /sys/block/sdb/sdb1/uevent" create the
device?
/sys/block/sdb/sdb1/ does (did) not exist...
It this does not, will a manually created sdb1 work?
A manually created sdb1 would report "no medium found" as well.
Apparently, the problem is related to hal. I found that hal specifically
ignores the storage side of this modem due to the following section in
/usr/share/hal/fdi/preprobe/10osvendor/20-broken-usb-sticks.fdi
<!-- Ignore the Huawei E169/E620 USB HSDPA modem -->
<match key="@storage.originating_device:usb.vendor_id" int="0x12d1">
<match key="@storage.originating_device:usb.product_id"
int="0x1001">
<merge key="info.ignore" type="bool">true</merge>
</match>
</match>
The other machines had an older version of hal-info installed, and were
polling /dev/sdb for media changes. Eventually, the card got detected.
Removing that section from the above file seems to fix it. Whether that
should be needed, I don't know.
In addition, there seems to be some kind of interation between media
detection in the card reader (which is LUN 1 of the device), and
whether the "CD-ROM" (LUN 0) has been accessed or not, but since it is
working right now, perhaps this bug can be closed.
Thanks,
Carlos
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