Add a note about emulated sdcard in rawbu usage dump
Change-Id: I95af9175235a18716d63a863b482a323392e4fa2
diff --git a/cmds/rawbu/backup.cpp b/cmds/rawbu/backup.cpp
index 70e7b57..ff6719f 100644
--- a/cmds/rawbu/backup.cpp
+++ b/cmds/rawbu/backup.cpp
@@ -639,6 +639,12 @@
fprintf(stderr, "options include:\n"
" -h Show this help text.\n"
" -a Backup all files.\n");
+ fprintf(stderr, "\n backup-file-path Defaults to /sdcard/backup.dat .\n"
+ " On devices that emulate the sdcard, you will need to\n"
+ " explicitly specify the directory it is mapped to,\n"
+ " to avoid recursive backup or deletion of the backup file\n"
+ " during restore.\n\n"
+ " Eg. /data/media/0/backup.dat\n");
fprintf(stderr, "\nThe %s command allows you to perform low-level\n"
"backup and restore of the /data partition. This is\n"
"where all user data is kept, allowing for a fairly\n"