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That would be a shame (no sarcasm intended; your contributions are invaluable).
Slexs
Member
Hi everyone.
I got remote help to read out the emmc of my tegra today. The helper left me stranded with a bunch of files:: Car, car.key, gateway.cfg, mcu_commands_key, mmcblk0.pt, mmcblk0p1.sqfs, mmcblk0p2.sqfs, mmcblk0p3.a, mmcblk0p3.b, mmcblk0p3.ext4, run-heartbeats, syslog, tesla1 and tesla2.
How do i arrange these files into a img file so i can transfer them onto a new blank eMMC?
I got remote help to read out the emmc of my tegra today. The helper left me stranded with a bunch of files:: Car, car.key, gateway.cfg, mcu_commands_key, mmcblk0.pt, mmcblk0p1.sqfs, mmcblk0p2.sqfs, mmcblk0p3.a, mmcblk0p3.b, mmcblk0p3.ext4, run-heartbeats, syslog, tesla1 and tesla2.
How do i arrange these files into a img file so i can transfer them onto a new blank eMMC?
amiral_sub
Member
Slexs
Member
Today i got a AllSocket reader the sd version with a 1uf cap from the manufacturer installed.
I connected cmd, CLK and d0 lines to the reader, and vcc/GND to a power supply.
When i turn the PS on, it draws 1.06A at 2.8v.
When i try to dmesg in terminal i get this:
This is the setup im trying to work with:
Maybe its a problem thst i connected the sd part of the AllSocket directly into my sd-card slot on the laptop, and i should rather connect it though a usb Sd reader?
I connected cmd, CLK and d0 lines to the reader, and vcc/GND to a power supply.
When i turn the PS on, it draws 1.06A at 2.8v.
When i try to dmesg in terminal i get this:
This is the setup im trying to work with:
Maybe its a problem thst i connected the sd part of the AllSocket directly into my sd-card slot on the laptop, and i should rather connect it though a usb Sd reader?
Slexs
Member
The problem seemed to be tied to me using the sd slot in the laptop.
When i connected the AllSocket to a usb Sd reader i got a different Message:
Maybe now its more about tuning the voltage. Ive only soldered wires to vcc, GND, dmc, CLK and dat0. The workshop i did this at got closed down due to the corona virus today, hope fully i can sneak in tomorrow to solder on d1-d3.
Will try again tonight with a different usb Sd reader and see what happens.
When i connected the AllSocket to a usb Sd reader i got a different Message:
Maybe now its more about tuning the voltage. Ive only soldered wires to vcc, GND, dmc, CLK and dat0. The workshop i did this at got closed down due to the corona virus today, hope fully i can sneak in tomorrow to solder on d1-d3.
Will try again tonight with a different usb Sd reader and see what happens.
whitex
Well-Known Member
Anyone out there who has an Allsocket EMMC/SD reader (rather than the USB version) who could run a quick experiment? Using mmc-utils (if you don't have it, the install command is "apt install mmc-utils"), and then run "mmc extcsd read /dev/mmcbkl0" (or substitute whatever mmc block device your adapter shows up on).
I have the USB version of Allsocket and it mounts as a scsi device, which lets me read/write the data but does not seem to allow issuing mmc specific commands.
If you get a different response than the ioctl error, please post what it looks like. Thanks in advance!
I have the USB version of Allsocket and it mounts as a scsi device, which lets me read/write the data but does not seem to allow issuing mmc specific commands.
If you get a different response than the ioctl error, please post what it looks like. Thanks in advance!
As far as I can see, there are only 3 connections between your laptop and the CID - I suppose CLK, CMD and D0. You are missing Ground/VSS. That needs to be connected to all 3 devices (Laptop/Reader, CID and Power Supply).
Anyone out there who has an Allsocket EMMC/SD reader (rather than the USB version) who could run a quick experiment? Using mmc-utils (if you don't have it, the install command is "apt install mmc-utils"), and then run "mmc extcsd read /dev/mmcbkl0" (or substitute whatever mmc block device your adapter shows up on).
I have the USB version of Allsocket and it mounts as a scsi device, which lets me read/write the data but does not seem to allow issuing mmc specific commands.
View attachment 520954
If you get a different response than the ioctl error, please post what it looks like. Thanks in advance!
Code:
# mmc extcsd read /dev/mmcblk0
=============================================
Extended CSD rev 1.0 (MMC 4.0)
=============================================
Last edited:
whitex
Well-Known Member
Thanks! That means I just need the SD adapter (vs. USB one) to be able to run MMC commands.
Friends,
I've managed to ddrescue partition 3 and I'm in the process of rescuing my entire chip. Now, if I try to kpartx -a the 3rd partition image, it'll create /dev/loop9 then, when I try to mount /dev/loop9, I'm getting an NTFS signature is missing error. Any ideas. I'm not a complete linux noob, I at least know how to sudo su (ZINGer from earlier posts), but I'm certainly not the king of Linux. TIA for any help.
I've managed to ddrescue partition 3 and I'm in the process of rescuing my entire chip. Now, if I try to kpartx -a the 3rd partition image, it'll create /dev/loop9 then, when I try to mount /dev/loop9, I'm getting an NTFS signature is missing error. Any ideas. I'm not a complete linux noob, I at least know how to sudo su (ZINGer from earlier posts), but I'm certainly not the king of Linux. TIA for any help.
No you just need a computer that see's the SD with emmc as /dev/mmcblkX vs /dev/sdX
