我将jetson tk1重新刷新到21.6。下面显示我成功了：
head -n 1 /etc/nv_tegra_release
# R21 (release), REVISION: 6.0, GCID: 9887687, BOARD: ardbeg, EABI: hard, DATE: Sat Oct 14 01:25:24 UTC 2017
之后我运行 installGrinch.sh ，它是从 git repo 克隆的。下面显示我也成功了：
ubuntu@tegra-ubuntu:~$ uname -a
Linux tegra-ubuntu 3.10.40-grinch-21.3.4 #1 SMP PREEMPT Fri May 1 10:41:09 UTC 2015 armv7l armv7l armv7l GNU/Linux
但重启后，仍然没有wifi：
ubuntu@tegra-ubuntu:~$ lspci
00:00.0 PCI bridge: NVIDIA Corporation Device 0e12 (rev a1)
01:00.0 Network controller: Intel Corporation Wireless 7260 (rev cb)
02:00.0 PCI bridge: NVIDIA Corporation Device 0e13 (rev a1)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
ubuntu@tegra-ubuntu:~$ lspci -vvv -s 01:00.0
01:00.0 Network controller: Intel Corporation Wireless 7260 (rev cb)
Subsystem: Intel Corporation Device 4c70
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 130
Region 0: Memory at 32200000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
“ifconfig”：
eth0 Link encap:Ethernet HWaddr 00:04:4b:70:94:12
inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::204:4bff:fe70:9412/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:492 errors:0 dropped:0 overruns:0 frame:0
TX packets:396 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:44073 (44.0 KB) TX bytes:47290 (47.2 KB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:696 errors:0 dropped:0 overruns:0 frame:0
TX packets:696 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:55276 (55.2 KB) TX bytes:55276 (55.2 KB)
而且，使用命令dmesg | grep iwl仍然没有显示任何内容。我百度/谷歌了原因，并尝试了我能找到的所有方法。安装linux-firmware不起作用，所以我安装了firmware-iwlwifihttps://packages.debian.org/stretch/firmware-iwlwifi。 “dpkg -l | grep iwl”显示固件-iwlwifi 已成功安装。但所有的事情都没有解决问题。最后我使用命令“lspci -vvv -s 03:00.0”来显示以太网控制器的详细信息。输出如下：
ubuntu@tegra-ubuntu:~$ lspci -vvv -s 03:00.0
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
Subsystem: Realtek Semiconductor Co., Ltd. Device 0123
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 642
Region 0: I/O ports at 10000 [size=256]
Region 2: Memory at 32100000 (64-bit, non-prefetchable) [size=4K]
Region 4: Memory at 12100000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
最后一行有“使用的内核驱动程序：r8169”，但是上面的“lspci -vvv -s 01:00.0”信息没有这个。那么到底是哪里出了问题？驱动程序还是内核？