root@beaglebone:~/mfm# ./mfm_read -a --tran /tmp/mac.raw --ext /tmp/mac.ext
Found drive at select 1
Returning to track 0
Drive RPM 3555.2
Header CRC Information:
Polynomial 0x1021 length 16 initial value 0x0
Controller type MacBottom
Sector length 524, Data CRC Information:
Polynomial 0xa00805 length 32 initial value 0x0
Number of heads 4 number of sectors 17 first sector 0
Interleave: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Drive supports buffered seeks (ST412)
Number of cylinders 612, 21.8 MB
Command line to read disk:
--sectors 17,0 --heads 4 --cylinders 612 --header_crc 0x0,0x1021,16,0
--data_crc 0x0,0xa00805,32,5 --format MacBottom --sector_length 524 --retries
50 --drive 1 --interleave 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
Returning to track 0
ECC Corrections on cylinder 447 head 1: 12(3)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 4(4) and 6(6)
Cyl 554 head 2 Missed sector between 9(9) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 4(4) and 6(6)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 4(4) and 6(6)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 4(4) and 6(6)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Cyl 554 head 2 Missed sector between 9(9) and 12(12)
Cyl 554 head 2 Missed sector between 12(12) and 14(14)
Retries failed cyl 554 head 2
Bad sectors on cylinder 554 head 2: 0 4 6 8 9 10H 11H 12 13 14 15 16
ECC Corrections on cylinder 554 head 2: 5(1)
Retries failed cyl 562 head 2
Bad sectors on cylinder 562 head 2: 14 15
Found cyl 0 to 611, head 0 to 3, sector 0 to 16
Expected 41616 sectors got 41602 good sectors, 2 bad header, 12 bad data
2 sectors corrected with ECC. Max bits in burst corrected 3
Track read time in ms min 28.587458 max 3547.281375 avg 55.713803