On Tue, 18 Jan 2005, Sara Fonseca wrote:

> Hi,
> 
> when I connect my pen drive in linux(kernel 6.9) the filesystem
> automounts, but as read-only.

Most likely the pen drive is telling your computer that it is 
write-protected.

> Another issue is that i cant read the
> files(I/O errors). The pen drive was previously formatted with fat in
> windows.
> Is it a firmware error?  If so, is there a good linux sniffer?

There's no way to tell whether this is a firmware error without more 
information.  You can get more information by turning on the usb-storage 
verbose debugging option in the kernel configuration and rebuilding the 
driver.  This will cause a lot of additional messages to be sent to the 
system log.  You may have to update /etc/syslog.conf to tell the syslog 
daemon that it should store debug-level messages from the kernel rather 
than ignoring them.  Doing this will probably tell you what you need to 
know without any need for a sniffer.

Alan Stern



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