May 2017
Beginner to intermediate
470 pages
10h 49m
English
Content preview from Android System Programming
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BCB
BCB is the communication interface of bootloader to the main system and recovery.
The Android system is also referred to as the main system in the recovery source code. We use the term main system as equivalent to Android system in this chapter.
BCB is stored in the /misc partition in a raw partition format, which means this partition is used just like a binary file without any filesystem.
Recovery uses a recovery.fstab file to mount all partitions in the system. If we look at the filesystem type of the /misc partition in recovery.fstab, it is emmc that is one of the raw filesystems used in recovery:
/dev/block/by-name/misc /misc emmc defaults defaults
There are five supported filesystem types in recovery including two raw filesystems ...
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