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June 2nd, 2019, 10:15
A few years back I used some python code to dump the bootloader ROM from a seagate F3 drive using the AP and RD commands within the bootloader
It was referenced in a slide presentation by Jonas Zaddach (starting on slide 18) and written by Travis Goodspeed
http://s3.eurecom.fr/~zaddach/docs/Recon14_HDD.pdfI can't find this script.
Can anyone help ?
June 2nd, 2019, 22:39
If you can't find the Python code, it shouldn't be too difficult to write a ZOC script to do this. You could modify the ZOC script I wrote for dumping WD's bootloader.
AIUI, the command sequence is …
AP 0<CR>
RD<CR>
RD<CR>
RD<CR>
etc
June 3rd, 2019, 7:02
fzabkar,
AP 0<CR>
-bootloader here. BootROM sits at 0x100000.)))
skeeter, What version BootROM you need? I've some dumps.
June 3rd, 2019, 7:37
E123 wrote:fzabkar,
AP 0<CR>
-bootloader here. BootROM sits at 0x100000.)))
I found this after I posted:
http://s3.eurecom.fr/~zaddach/docs/POC13_zaddach.pdf- Code:
Memory Range Type
0x00000000 – 0x00008000 Code SRAM
0x00100000 – 0x00120000 ROM
0x00200000 – 0x00400000 Code DRAM
0x04000000 – 0x04004000 Data SRAM
0x40000000 – 0x50000000 IO
0x60000000 – 0x70000000 Data DRAM
June 3rd, 2019, 18:47
If you would like to play with WD instead, here is the boot loader from a WD20EADS (uploaded via a ZOC script):
@Severence and I have been able to decompress WD's ROM code (@Severence has compiled a Windows version of LZHUF for this purpose). My ROM parsing tool extracts the various code segments.
Seagate's ROM segments are compressed with a different algorithm ("CPRS").
June 6th, 2019, 13:59
Thanks for all the ideas, but I want to stick with seagate because it will make it much easier later when I get to the actual firmware code (having messages and diagnostics in text throughout....)
The version I have is:
SEA-3 Yeti Boot ROM 2.0 (12/06/2007)
Copyright Seagate 2007
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