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On 02/02/2011 04:48:40 PM, Paul Hartman wrote: |
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> On Mon, Jan 31, 2011 at 3:43 AM, Helmut Jarausch |
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> <jarausch@××××××××××××××××.de> wrote: |
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> > Hi, |
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> > |
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> > since a few weeks I have a strange effect with my USB stick. |
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> > |
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> > According to fdisk there is one partition on it |
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> > /dev/sde1 38 7839719 3919841 b W95 FAT32 |
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> > |
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> > which I haven't changed for a long time. |
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> > |
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> > Whenever I insert this stick, the kernel log shows |
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> > /dev/sde but not /dev/sde1 (and there is no file /dev/sde1) |
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> > |
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> > After Invoking fdisk /dev/sde with a simple 'p' command but nothing |
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> > else, this device shows up. |
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> > |
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> > Has anybody an idea what's going on here? |
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> |
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> I have a USB SD-card reader which cannot read the partition table |
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> when |
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> first inserted into the PC. But, if I issue "hdparm -z /dev/sdg" then |
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> the kernel re-reads the partition table and everything works fine |
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> after that. You can try it, maybe it'll work for you, too. |
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Thanks Paul and all other who tried to help. |
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Sorry for my late reply, I have been too busy. |
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My situation seems special. |
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- the card reader is 2 years old (builtin) |
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- the stick is about 1 year old |
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2 of my 3 USB stick work just fine |
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up to kernel 2.6.36-? the stick in question |
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has worked definitely. |
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Probably since kernel 2.6.37 this one shows the mentioned problems. |
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Paul's advice above works just fine! |
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So, I think it's a timing problem as Paul has suggested in a later |
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mail. Where can I set the delay_use option of usb-storage to a higher |
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value? |
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Many thanks again, |
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Helmut. |
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