This is regarding Amazon's port of Lollipop. AFAICT, other similar questions are regarding Jelly Bean and earlier plus non deal with Fire OS.
I'm working with a rooted Amazon Fire TV/2 running Amazon's Fire OS 5, its Lollipop port. I'm unable as root to mount /system as r/w.
mount -o remount,rw /system fails with "mount: Invalid argument"
/dev/block/mmcblk0p13 is linked to /dev/block/platform/mtk-msdc.0/by-name/system
/dev/block/platform/mtk-msdc.0/by-name/system is mounted at /system
Mounting /system r/w (as root) worked fine under JB.
How can I remount /system as r/w under Amazon's Lollipop?