on other devices, how does the disk behave?
I’m on Linux Khadas 5.5.0-rc2
khadas@Khadas:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
*mmcblk2 179:0 0 29.1G 0 disk *
├─mmcblk2p1 179:1 0 300M 0 part /boot
└─mmcblk2p2 179:2 0 28.4G 0 part /
*mmcblk2boot0 179:32 0 4M 1 disk *
*mmcblk2boot1 179:64 0 4M 1 disk *
zram1 253:1 0 256M 0 disk [SWAP]
zram2 253:2 0 256M 0 disk [SWAP]
zram3 253:3 0 256M 0 disk [SWAP]
zram4 253:4 0 256M 0 disk [SWAP]
khadas@Khadas:~$ uname -a
Linux Khadas 5.5.0-rc2 #0.8.2 SMP PREEMPT Fri Jan 3 09:48:06 CST 2020 aarch64 aarch64 aarch64 GNU/Linux
khadas@Khadas:~$ cat /sys/class/mcu/usb_pcie_switch_mode
1
I use the disc in a USB key. On my PC, it works well. But I can’t manage to use via USB on VIM3 and jetson nano.
ok, can you temporarily download Android and check? you will need to switch the trigger for nvme in the settings too
has been told before,
and has been switched, seems that there is still no luck
specifically about Android, he said nothing.
in any case, you need to check on different OS to exclude incompatibility of firmware
I am sorry, I was referring to this,
Oh Man, we have a bit of a communication problem 
,
Hope that doesn’t become a problem
the main thing that ronron understood!
That’s about ok, Atleast he could understand us both 
Wait a second, @ronron that firmware has PCIe disabled due to bugs
Its obvious it doesn’t work. try a newer firmware
Yes use that it is the latest firmware with proper PCIe support,
here is a reference to where I know about it
I hope that solves the problem ,and sums it up , Good day !
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Well, actually I hinted at it
1 Like
Oops, It happened again 
no, we just have a great desire to help
Yes, I do agree
My ssd in androidTV is detected. Don’t work, but detected 
.
So gpu not ready and nvme ssd so not ready on ubuntu 
wait, how to understand this?
try changing the file system!
as a rule, if an android recognizes a disk but cannot read it, it usually suggests formatting it and creating the correct file system!
You can see the notification in the curtain!
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And one more thing, what is your power supply? since the requirements for the board, it is up to 12 Volts 3 Amperes, otherwise peripheral problems may occur!!!
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I has installed 4.9 from sd-rescue
root@Khadas:~# uname -a
Linux Khadas 4.9.206 #13 SMP PREEMPT Tue Dec 31 00:37:47 CST 2019 aarch64 aarch64 aarch64 GNU/Linux
root@Khadas:~# lspci
00:00.0 PCI bridge: Synopsys, Inc. Device abcd (rev 01)
01:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM951/PM951 (rev 01)
SSD work and write/read is OK.
With VIM3_Ubuntu-server-focal_Linux-5.7-rc7_arm64_SD-USB_V0.9-20200530, I don’t have keyboard and network. So I don’t know 
I will be able to start manufacturing my expansion card.
I have 12V and 2A
3 Likes
Thanks for asking Those Questions @Vladimir.v.v I forgot to ask about Formatting and Power supply,
1 Like