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I have connected this external "Hi-Speed Business Drive" Pyrogate PX-21 after a very long time (> 1 year). On /var/log/messages I get
Jan 9 18:20:46 mymachine usb 2-2: new full speed USB device using uhci_hcd and address 3
Jan 9 18:20:47 mymachine usb 2-2: new full speed USB device using uhci_hcd and address 4
Jan 9 18:20:47 mymachine usb 2-2: new full speed USB device using uhci_hcd and address 5
Jan 9 18:20:48 mymachne usb 2-2: new full speed USB device using uhci_hcd and address 6
and lsusb says
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
I'm sure I used this drive those days, not sure wheter Arch or Slackware.
What do I need to mount this drive?
Kernel Linux 2.6.23-ARCH #1 SMP PREEMPT Fri Dec 21 19:39:35 UTC 2007 i686
Last edited by vis (2008-01-09 17:35:10)
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Ony now I checked dmesg. It is full of messages like
usb 2-2: new full speed USB device using uhci_hcd and address 3
usb 2-2: device descriptor read/64, error -71
for addesses 3-10
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Is this a usb HDD? If so, it may need external power.
Prediction...This year will be a very odd year!
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit! X-ray confirms Iam spineless!
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Yes, it is an external USB case for a 2.5" HD.
The power may be an issue. But the drive has a two USB-connectors in parallel on the computer side. And I know for sure that it worked with this same notebook about an year ago. Kernel 2.6, can't remember the exact version nor the distribution (Arch or Slackware).
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It may be that the power required is supplied by two usb connections which then supplies twice the current of one usb connection.
Prediction...This year will be a very odd year!
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit! X-ray confirms Iam spineless!
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You mean the disk is now going at 10'800 rpm?
:-)
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No, not that the speed changes but the power needed to run the drive may exceed the 500 milliamperes of current provided by a single usb connection...therefore a second connection would create 500 milliamperes as well but only the voltage (5v) remains the same and the speed is voltage related.
Most external devices have a power connector for supplying the mains power through a wall wart to supply the 5V for the spin-up at 5400rpm.
Prediction...This year will be a very odd year!
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit! X-ray confirms Iam spineless!
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