Hi, we are also having an issue with this. We have a new environment and have moved some of general data partitions around (not boot1, to our knowledge) but when we save the environment with U-Boot’s saveenv we can no longer get past mb1.
Come to think of it, it’s possible our new environment is too large. At boot we see
*** Warning - bad CRC, using default environment
And at the end of a printenv we see:
Environment size: 5814/131067 bytes
Which is way over CONFIG_ENV_SIZE 0x2000 (8192). L4T U-Boot reported ~4000/8188. Does anyone know how we can “loadenv”?
Edit: We solved this. We had three issues:
- CONFIG_ENV_SIZE was too large, 0x20000 instead of 0x2000
- CONFIG_SYS_MMC_ENV_PART was set to 0, instead of 2 (mmcblk0boot1)
- CONFIG_ENV_OFFSET was indeed set to 0x3FE000 (0x400000-0x2000) however we ended up setting this to 0x0 as /dev/mmcblk0boot1 is unused until a 16KB table starting at 0x3fbe00.
I’d like to discuss 3 a little further. /dev/mmcblk0boot1 looks like this:
00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fbe00 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fbe10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fbe20 00 00 00 00 00 00 00 00 3f 00 00 00 00 00 00 00 |........?.......|
003fbe30 00 00 00 00 00 00 00 00 42 00 43 00 54 00 00 00 |........B.C.T...|
003fbe40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fbe80 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fbe90 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fbea0 40 00 00 00 00 00 00 00 3f 02 00 00 00 00 00 00 |@.......?.......|
003fbeb0 00 00 00 00 00 00 00 00 6d 00 62 00 31 00 00 00 |........m.b.1...|
003fbec0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fbf00 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fbf10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fbf20 40 02 00 00 00 00 00 00 3f 04 00 00 00 00 00 00 |@.......?.......|
003fbf30 00 00 00 00 00 00 00 00 6d 00 62 00 31 00 5f 00 |........m.b.1._.|
003fbf40 62 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |b...............|
003fbf50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fbf80 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fbf90 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fbfa0 40 04 00 00 00 00 00 00 bf 04 00 00 00 00 00 00 |@...............|
003fbfb0 00 00 00 00 00 00 00 00 4d 00 42 00 31 00 5f 00 |........M.B.1._.|
003fbfc0 42 00 43 00 54 00 00 00 00 00 00 00 00 00 00 00 |B.C.T...........|
003fbfd0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fc000 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fc010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fc020 c0 04 00 00 00 00 00 00 3f 05 00 00 00 00 00 00 |........?.......|
003fc030 00 00 00 00 00 00 00 00 4d 00 42 00 31 00 5f 00 |........M.B.1._.|
003fc040 42 00 43 00 54 00 5f 00 62 00 00 00 00 00 00 00 |B.C.T._.b.......|
003fc050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fc080 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fc090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fc0a0 40 05 00 00 00 00 00 00 3f 06 00 00 00 00 00 00 |@.......?.......|
003fc0b0 00 00 00 00 00 00 00 00 73 00 70 00 65 00 2d 00 |........s.p.e.-.|
003fc0c0 66 00 77 00 00 00 00 00 00 00 00 00 00 00 00 00 |f.w.............|
003fc0d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fc100 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fc110 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fc120 40 06 00 00 00 00 00 00 3f 07 00 00 00 00 00 00 |@.......?.......|
003fc130 00 00 00 00 00 00 00 00 73 00 70 00 65 00 2d 00 |........s.p.e.-.|
003fc140 66 00 77 00 5f 00 62 00 00 00 00 00 00 00 00 00 |f.w._.b.........|
003fc150 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fc180 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fc190 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fc1a0 40 07 00 00 00 00 00 00 3f 09 00 00 00 00 00 00 |@.......?.......|
003fc1b0 00 00 00 00 00 00 00 00 6d 00 62 00 32 00 00 00 |........m.b.2...|
003fc1c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fc200 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fc210 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fc220 40 09 00 00 00 00 00 00 3f 0b 00 00 00 00 00 00 |@.......?.......|
003fc230 00 00 00 00 00 00 00 00 6d 00 62 00 32 00 5f 00 |........m.b.2._.|
003fc240 62 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |b...............|
003fc250 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fc280 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fc290 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fc2a0 40 0b 00 00 00 00 00 00 3f 0d 00 00 00 00 00 00 |@.......?.......|
003fc2b0 00 00 00 00 00 00 00 00 6d 00 74 00 73 00 2d 00 |........m.t.s.-.|
003fc2c0 70 00 72 00 65 00 62 00 6f 00 6f 00 74 00 00 00 |p.r.e.b.o.o.t...|
003fc2d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fc300 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fc310 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fc320 40 0d 00 00 00 00 00 00 3f 0f 00 00 00 00 00 00 |@.......?.......|
003fc330 00 00 00 00 00 00 00 00 6d 00 74 00 73 00 2d 00 |........m.t.s.-.|
003fc340 70 00 72 00 65 00 62 00 6f 00 6f 00 74 00 5f 00 |p.r.e.b.o.o.t._.|
003fc350 62 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |b...............|
003fc360 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fc380 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fc390 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fc3a0 40 0f 00 00 00 00 00 00 47 0f 00 00 00 00 00 00 |@.......G.......|
003fc3b0 00 00 00 00 00 00 00 00 53 00 4d 00 44 00 00 00 |........S.M.D...|
003fc3c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003fc400 a2 a0 d0 eb e5 b9 33 44 87 c0 68 b6 b7 26 99 c7 |......3D..h..&..|
003fc410 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003fc420 48 0f 00 00 00 00 00 00 4f 0f 00 00 00 00 00 00 |H.......O.......|
003fc430 00 00 00 00 00 00 00 00 53 00 4d 00 44 00 5f 00 |........S.M.D._.|
003fc440 62 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |b...............|
003fc450 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
003ffe00 45 46 49 20 50 41 52 54 00 00 01 00 5c 00 00 00 |EFI PART....\...|
003ffe10 43 fe b0 0b 00 00 00 00 ff 3f 00 00 00 00 00 00 |C........?......|
003ffe20 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
003ffe30 df 3f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |.?..............|
003ffe40 00 00 00 00 00 00 00 00 df 3f 00 00 00 00 00 00 |.........?......|
003ffe50 0d 00 00 00 80 00 00 00 82 c5 0a 35 00 00 00 00 |...........5....|
003ffe60 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00400000
There is a 0x1e00 gap between 0x3FE000 (start of the U-Boot env) and 0x3ffe00 (start of the 512B EFI block).
Why does L4T try to fit a 0x2000 U-Boot env into a 0x1e00 gap? I believe this is a bug that will only show when U-Boot env is >7680B (0x1e00) in size.
We moved this to 0x0 as it appears to be unused.