It took me some hours to make my macOS 10.12 Sierra installation to not panic after plugging in arduino clones with CH340 USB2Serial chips. This tzapu.com blog post helped me. They also provide a download link to a signed kernel extension for CH340 USB2Serial which I installed on my system.
This blog post helped me a lot implementing swipe-to-delete for an Android app I am currently developing.
Check this blog post from Nemanja Kovacevic
chflags -R nouchg atar.sparsebundle
hdiutil attach -nomount -noverify -noautofsck atar.sparsebundle
fsck_hfs -drfy /dev/disk2s2
I recently had difficulties restoring a Time Machine backup which is stored on a netatalk server to a MacBook Pro using the builtin Recovery Mode.
mount_afp afp://user:email@example.com/afpShareName /Volumes/backup
This fixes the issue. :-)