MKSPIFFS Images cannot be mounted -- corrupted about mkspiffs

[weswitt]

I did a test that demonstrates the problem and attached some files to show the issue. The zip file has 2 files: fs-bad.bin and fs-good.bin. fs-bad.bin was created by mkspiffs. fs-good.bin was created by the spiffs code in the sketch below.

#include "FS.h"

void read_file()
{
File configFile = SPIFFS.open("/test.txt", "r");
if (!configFile)
{
Serial.println("cannot open file");
}
else
{
size_t configSize = configFile.size();
char buf[512];
memset(buf, 0, 512);
size_t bytes_read = configFile.readBytes(buf, configSize);
configFile.close();
Serial.print("BYTES_READ: ["); Serial.print(bytes_read); Serial.println("]");
Serial.print("DATA: ["); Serial.print(buf); Serial.println("]");
}
}

void write_file()
{
char buf[512];
SPIFFS.format();
strcpy(buf, "*** ==> test data <== ****");
File f = SPIFFS.open("/test.txt", "w");
f.write((const uint8_t)buf, strlen(buf));
f.close();
Serial.println("filesystem created");
}

void setup()
{
Serial.begin(115200);
//Serial.setDebugOutput(true);
delay(5000);
SPIFFS.begin();
String str = "";
Serial.println("FILES:");
Dir dir = SPIFFS.openDir("/");
while (dir.next())
{
str += dir.fileName();
str += " : ";
str += dir.fileSize();
str += "\r\n";
}
Serial.print(str);
write_file();
read_file();
}

void loop()
{
}

fs.zip

[weswitt]

I resolved this. I built with SPIFFS_USE_MAGIC_LENGTH=0 and SPIFFS_ALIGNED_OBJECT_INDEX_TABLES=1 and it now works.