I am currently running lubuntu on a netbook from an SD card boot. The HD disk is fried and this gives me a way to use the machine while Im waiting to get a new HD.

I have successfully mounted an external drive but mustn't have unmounted it properly because now when I try to connect it it says it can't mount because it's already mounted.

I've googled for help but so far haven't found anything that works. I read a page about how to use udisks but when I try to install it I get an error 'udisks has no installation candidate'.

Many thanks for any help