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@Survive-Pi  To solve the problem with btrfs: 
edit the install_to_emmc script, find the mkfs.btrfs command and change it so that it looks like: 
- mkfs.btrfs -O ^extref,^skinny-metadata -f -L emmclinux ${sdcard}p2 > /dev/null 2>&1
 
  Copy code There was some changes in new btrfs-tools which make skinny-metadata option default, and it is not supported in the OPI kernel 
Make the same change in any script that uses mkfs.btrfs or if you use btrfs format manualy. 
 
 
@lymon @etopi  The 8192cu.ko driver is allready available in kernel modules directory (/lib/modules/3.4.39[-01-lobo]/kernel/drivers/net/wireless/rtlwifi/rtl8192cu directory) 
The driver requires the firmware loading, and it it does not work on Ubuntu Vivid/Willy , same as any driver which requires firmware loading. 
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