USB disk not always mounted

giovilux

Hi,

I'm experiencing strange behaviours with an external USB attached disk.
1. powering on the rpi with the disk attached in library there is a blank page
2.disconnect and re-connect the disk to the usb library now shows that there is an usb source
3.once I can see the usb source I can sometime see only one of the 2 directories in the disk

Thanks
giovanni

giovilux

one more thing,
once I add something to the queue the library may disappear without any reason

Thanks
giovanni

janui

Hi giovilux,

Do you have an extra power supply for your USB-disk (I assume it is a USB disk and not a memory stick)? A powered hub normally required to give it enough power to operate.

You may just have enough power to get it working if the USB power supply is set to the maximum (1.2A , standard is 0.6A). In your config.txt file alter the line

max_usb_current=0

to (or if the line is missing missing, just add)

max_usb_current=1

For a reliable set-up the powered hub is advised.

Janui

giovilux

Thanks Janui,
the disk has it's own power supplier.
I've done some more tests and I suspect the problem is in the sd card. I've flashed it several times without results.
I've flashed a brand new card and this works in both rpi that I have. I will now get a new cart and try again.

Giovanni

giovilux

I think the problem is in how the sd card has been flashed.
I reflashed the card removing all partitions from linux, then I initialised it in widows disk utility and eventually fleshed the disk image with rufus.
It works now (cross the fingers).

Giovanni