Formatting and Filesystem Issues on SD Card - Differences in Boot Sector and Dirty Bit

Question

I'm experiencing several issues with an SD card, and I'd like to provide more details to help the community understand the problem more comprehensively:

I'm using an SD card with my Android smartphone. The card is primarily used for storing photos, videos, etc. Recently, when i trying to format the drive i've got a error message like "Error synchronizing after initial wipe: Timed out waiting for object (udisks-error-quark, O)" on my Ubuntu 22.04.3 LTS machine. The SD card is currently formatted as FAT32.

When I run** fsck.fat** on the SD card, I receive the following message:

Differences between boot sector and its backup.
This is mostly harmless. Differences: (offset:original/backup)
  65:01/00
Not automatically fixing this.
Dirty bit is set. Fs was not properly unmounted and some data may be corrupt. Automatically removing dirty bit.
*** Filesystem was changed ***

How significant are these differences between the primary and backup boot sectors, particularly the difference at offset 65? What do these differences mean for the integrity of the filesystem? I can't do any read-write operations on this sd-card.This is totally stuck

Answer 1

It may not be significant at all... That would depend on whether or not you had mounted SD card before you ran fsck.fat on it. You will always get an error message if you run fsck.fat on it while it is mounted.