Update 4.1 -> 4.2 is not working

[TomWoB]

Hi Tim,

I understand the update problem with a new Raspian version, but e.g. Windows 10 can do "nearly a complete new Operating System in-place update" every 6 months (Threshold, Redstone updates), but this is more a Linux&Raspbian topic.

And ... I have already most of my music files on an external SSD within an external enclosure: ICI BOX IB-233U3-B . That's fine for

• iTunes files (*.m4a)
  
• ripped CDs (*.flac)
  
• HDtracks up to 96kHz/24bit (*.flac)
  

For HDtracks files >= 192kHz/24bit I prefer to store them on the local SD-card, because it happened sometimes in the past that such files stuck for a short time (< 1s). OK, very seldom cases, but that's not acceptable for me ...  

Regards
Tom