Sometimes, when user does some work in recovery mode -> virtual command terminal (copying some files to /system for example) and immediately uses reboot option without running sync beforehand, changes are not written to disk. Attempt to reduce risk of data loss by syncing disks first.
Sometimes, when user does some work in recovery mode -> virtual command terminal (copying some files to /system for example) and immediately uses reboot option without running sync beforehand, changes are not written to disk. Attempt to reduce risk of data loss by syncing disks first.