I have similar errors but i get an output: sudo dosfsck -v -n /dev/sda1
dosfsck 2.11 (12 Mar 2005) dosfsck 2.11, 12 Mar 2005, FAT32, LFN Checking we can access the last sector of the filesystem There are differences between boot sector and its backup. Differences: (offset:original/backup) 430:4e/44, 431:54/61, 432:4c/74, 433:44/65, 434:52/6e, 435:20/74, 436:66/72 , 437:65/84, 438:68/67, 439:6c/65, 440:74/72, 441:ff/20, 442:0d/65 , 443:0a/6e, 444:4d/74, 445:65/66, 446:64/65, 447:69/72, 448:65/6e , 449:6e/65, 450:66/6e, 451:65/ff, 452:68/0d, 453:6c/0a, 454:65/4d , 455:72/65, 456:ff/64, 457:0d/69, 458:0a/65, 459:4e/6e, 460:65/66 , 461:75/65, 462:73/68, 463:74/6c, 464:61/65, 466:74/ff, 467:3a/0d , 468:20/0a, 469:54/4e, 470:61/65, 471:73/75, 472:74/73, 473:65/74 , 474:20/61, 475:64/72, 476:72/74, 477:81/3a, 478:63/20, 479:6b/54 , 480:65/61, 481:6e/73, 482:0d/74, 483:0a/65, 484:00/20, 485:74/64 , 486:0d/72, 487:0a/81, 488:00/63, 489:00/6b, 490:00/65, 491:00/6e , 492:00/0d, 493:00/0a, 506:ba/c4, 507:c9/d3 Not automatically fixing this. Boot sector contents: System ID "MSDOS5.0" Media byte 0xf8 (hard disk) 512 bytes per logical sector 8192 bytes per cluster 38 reserved sectors First FAT starts at byte 19456 (sector 38) 2 FATs, 32 bit entries 4887040 bytes per FAT (= 9545 sectors) Root directory start at cluster 2 (arbitrary size) Data area starts at byte 9793536 (sector 19128) 1221693 data clusters (10008109056 bytes) 63 sectors/track, 255 heads 63 hidden sectors 19566225 sectors total Checking for unused clusters. Checking free cluster summary. /dev/sda1: 29449 files, 1001615/1221693 clusters -- Boot fs-check error - Differences between boot sector and back-up https://bugs.launchpad.net/bugs/72293 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs