In response to your questions:
Quote:
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Again, you *could* sacrifice an SD card to make that your "onboard" partition but maybe that's not the point of noodling with this.
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Right. This has become an intellectual exercise only. If I don't get it working soon, it's going to the scrap bin.
Quote:
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You're only going to be out $10 if we brick this thing right?
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Right and I'm hoping we brick it sooner than later so I stop having an excuse to play with this thing.
Quote:
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I think that large "mtdb4" may just be a stray file for you.
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I deleted it and it didn't have an impact.
Here's my mtd devices and attempts to read from them:
Code:
# cd /dev
# ls -l | grep mtd
ls: ./mtdb6: Input/output error
brw-r--r-- 1 root root 90, 0 Feb 26 2019 mtd0
brw-r--r-- 1 root root 90, 1 Feb 26 2019 mtd0ro
brw-r--r-- 1 root root 90, 2 Feb 26 2019 mtd1
brw-r--r-- 1 root root 90, 3 Feb 26 2019 mtd1ro
brw-r--r-- 1 root root 90, 4 Feb 26 2019 mtd2
brw-r--r-- 1 root root 90, 5 Feb 26 2019 mtd2ro
brw-r--r-- 1 root root 90, 6 Feb 26 2019 mtd3
brw-r--r-- 1 root root 90, 7 Feb 26 2019 mtd3ro
crw-r--r-- 1 root root 90, 8 Feb 26 2019 mtd4
brw-r--r-- 1 root root 90, 9 Feb 26 2019 mtd4ro
brw-r--r-- 1 root root 90, 10 Feb 26 2019 mtd5
brw-r--r-- 1 root root 90, 11 Feb 26 2019 mtd5ro
brw-r--r-- 1 root root 90, 12 Feb 26 2019 mtd6
brw-r--r-- 1 root root 90, 13 Feb 26 2019 mtd6ro
brw-r--r-- 1 root root 31, 0 Feb 26 2019 mtdblock0
brw-r--r-- 1 root root 31, 1 Feb 26 2019 mtdblock1
brw-r--r-- 1 root root 31, 2 Feb 26 2019 mtdblock2
brw-r--r-- 1 root root 31, 3 Feb 26 2019 mtdblock3
brw-r--r-- 1 root root 31, 4 Aug 29 13:10 mtdblock4
brw-r--r-- 1 root root 31, 5 Feb 26 2019 mtdblock5
brw-r--r-- 1 root root 240, 0 Feb 26 2019 mtdblock6
# dd if=/dev/mtdblock0 of=/dev/null bs=1024k
0+1 records in
0+1 records out
# dd if=/dev/mtdblock1 of=/dev/null bs=1024k
1+1 records in
1+1 records out
# dd if=/dev/mtdblock2 of=/dev/null bs=1024k
0+1 records in
0+1 records out
# dd if=/dev/mtdblock3 of=/dev/null bs=1024k
0+1 records in
0+1 records out
# dd if=/dev/mtdblock4 of=/dev/null bs=1024k
end_request: I/O error, dev mtdblock4, sector 298752
Buffer I/O error on device mtdblock4, logical block 37344
end_request: I/O error, dev mtdblock4, sector 298760
Buffer I/O error on device mtdblock4, logical block 37345
end_request: I/O error, dev mtdblock4, sector 298768
Buffer I/O error on device mtdblock4, logical block 37346
end_request: I/O error, dev mtdblock4, sector 298776
Buffer I/O error on device mtdblock4, logical block 37347
end_request: I/O error, dev mtdblock4, sector 298784
Buffer I/O error on device mtdblock4, logical block 37348
end_request: I/O error, dev mtdblock4, sector 298792
Buffer I/O error on device mtdblock4, logical block 37349
end_request: I/O error, dev mtdblock4, sector 298800
Buffer I/O error on device mtdblock4, logical block 37350
end_request: I/O error, dev mtdblock4, sector 298808
Buffer I/O error on device mtdblock4, logical block 37351
end_request: I/O error, dev mtdblock4, sector 298816
Buffer I/O error on device mtdblock4, logical block 37352
end_request: I/O error, dev mtdblock4, sector 298824
Buffer I/O error on device mtdblock4, logical block 37353
end_request: I/O error, dev mtdblock4, sector 298832
end_request: I/O error, dev mtdblock4, sector 298840
end_request: I/O error, dev mtdblock4, sector 298848
end_request: I/O error, dev mtdblock4, sector 298856
end_request: I/O error, dev mtdblock4, sector 298864
end_request: I/O error, dev mtdblock4, sector 298872
end_request: I/O error, dev mtdblock4, sector 298880
end_request: I/O error, dev mtdblock4, sector 298896
end_request: I/O error, dev mtdblock4, sector 298904
end_request: I/O error, dev mtdblock4, sector 298912
end_request: I/O error, dev mtdblock4, sector 298920
end_request: I/O error, dev mtdblock4, sector 298928
end_request: I/O error, dev mtdblock4, sector 298936
end_request: I/O error, dev mtdblock4, sector 298944
end_request: I/O error, dev mtdblock4, sector 298952
end_request: I/O error, dev mtdblock4, sector 298960
end_request: I/O error, dev mtdblock4, sector 298968
end_request: I/O error, dev mtdblock4, sector 298976
end_request: I/O error, dev mtdblock4, sector 298984
end_request: I/O error, dev mtdblock4, sector 298992
end_request: I/O error, dev mtdblock4, sector 299000
end_request: I/O error, dev mtdblock4, sector 298752
end_request: I/O error, dev mtdblock4, sector 298752
dd: /dev/mtdblock4: Input/output error
# dd if=/dev/mtdblock5 of=/dev/null bs=1024k
1+0 records in
1+0 records out
# dd if=/dev/mtdblock6 of=/dev/null bs=1024k
dd: can't open '/dev/mtdblock6': No such device or address
More on the mtdblock4 errors in the next post.