ok, will try Many Thanks!!

ok, I'll backup all data first. How can I remove old kernel without enter in grub menu (since usually boot works well) and select the oldone as default? Thanks

seems not....but I'm not used to intense task

I not on that machine but as far as I remember it's a full ntfs partition, don't think I ever changed fstab

ok, thank you very much for detailed explanation, yes I remember that I had removed timeout from grub in the past, I will follow your procedure and select previous kernel. Another question, once I'v selected the older kernel did you think that removing (it's fine using apt?) and resinstall newest kernel will fix the issue or I'v to keep the older kernel? In case I'v to keep the older kernel how can I avoid that it will be overwritten once I update the os?

I recently moved from osmand to organic maps (now that they add gpx support) and even if it cannot be compared to gmaps it's the most usable and have metro maps in it

sorry was ext4...ops

so can be bios dependent?..it's possible to change from /dev/sdn to UUIDs...how? Thanks

how can I be sure? it just happen sometimes

kiss launcher