yes, exactly follow instruction formatted with SD formater downloaded from https://www.sdcard.org/downloads/formatter_4/eula_windows/
after burn image, sdcard can be mounted successfully under linux and
I can see 2 partition; fat32 and ext4 which means sdcard not corrupted
By accident I observed a strange behaviour with this image on the M2+ board. Accessing /proc/sram as a normal user leads to a kernel oops message and leaves the system in an unusable state, e.g. accessing the file system is impossible.
bpr@bananapi:~$ cat /proc/sram
Message from syslogd@localhost at Jun 17 18:57:35 ...
kernel:[ 173.241581] sunxi oops: enable sdcard JTAG interface
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] sunxi oops: cpu frequency: 912 MHz
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] sunxi oops: ddr frequency: 672 MHz
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] sunxi oops: gpu frequency: 105 MHz
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] sunxi oops: cpu temperature: 61
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] Internal error: Oops: 17 [#1] PREEMPT SMP ARM
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] Process cat (pid: 1314, stack limit = 0xe5be62f8)
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] Stack: (0xe5be7e60 to 0xe5be8000)
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7e60: c0a828c0 e5be7ebc e5be7e80 c0a828e0 e5be7ebc e5be7e80 c0024144 c0387f80
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7e80: 0000c000 00000000 00000000 c0a828d4 e5be7ec4 e5d52540 00000001 00000001
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7ea0: 00000000 00020000 b6c6c000 e5be7ed0 e5be7f0c e5be7ec0 c01382d4 c0024108
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7ec0: c00fffdc e5d52568 e5df5ec0 e5be7f70 00000000 00000000 00000000 c072d368
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7ee0: e676a368 e6316d40 c01380f0 e5df5ec0 00020000 b6c6c000 e6316d8c e5be7f70
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7f00: e5be7f3c e5be7f10 c016691c c01380fc e5be7f70 00020000 e5df5ec0 b6c6c000
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7f20: e5be7f70 00000000 00000000 00000000 e5be7f6c e5be7f40 c0119968 c0166898
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7f40: e5be6000 b6c6b000 00022000 e5df5ec0 b6c6c000 00020000 00000003 00000000
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7f60: e5be7fa4 e5be7f70 c0119a30 c01198b4 00000000 00000000 00000022 00000000
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7f80: ffffffff 00020000 00020000 b6c6c000 c000e368 e5be6000 00000000 e5be7fa8
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7fa0: c000e100 c01199f0 00020000 00020000 00000003 b6c6c000 00020000 000271c4
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7fc0: 00020000 00020000 b6c6c000 00000003 7fffe000 00000000 00000000 00020000
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] 7fe0: 00000000 beebe524 00013835 b6ea0fa6 400f0030 00000003 00000000 00000012
Message from syslogd@localhost at Jun 17 18:57:38 ...
kernel:[ 173.251561] Code: e1a04000 ebf47676 e1a02004 e3a04000 (e5b23008)
Segmentation fault
bpr@bananapi:~$ top
-bash: /usr/bin/top: Input/output error