BOE
(Ning)
April 28, 2018, 7:16am
1
After running Ubuntu 16.04, it’s easy to install packages on the W2. Please follow below steps to install node.js:
1. apt-get install nodejs
2. apt-get install npm
3. npm install -g http-server
4. make a link to nodejs: cd /usr/bin/; ln -sf nodejs node
then Node.js is ready on your system.
As a demonstration, I copied a 3D model to the W2 and displayed it with http-server. It runs very smoothly. Please refer to the video link below.
BPI-W2 new image : How to make and run the 64-bit ubuntu 16.04 on SD card
1 Like
edtguy
(Ed)
May 17, 2018, 1:42pm
2
Hi,
Did you have any problems making and running the 64-bit ubuntu on SD card? I followed all the instructions, but when I restart the BPI-W2 with the SD card, the HDMI monitor displays a green screen and freezes. With a serial session of Putty connected via a UART/USB cable, the Putty client displays the entire boot procedure, for which I have uploaded the Putty client session output. BootBPI-W2WithUbuntuSDCard.txt (145.7 KB)
Notice how the program, dmesg, continually outputs the following issue:
[ 100.794889] I/DC: [dc_wait_vsync_timeout 884] wait vsync timeout! vo_vsync_flag:0x00000101
Did you have this issue, or know what is causing it?
Thanks for any insights,
Ed
BOE
(Ning)
May 18, 2018, 11:35am
3
Yes, HDMI can’t work on 64-bit ubuntu, we are working on this now.
edtguy
(Ed)
May 18, 2018, 1:32pm
4
Thanks for the update. How did you get ethernet to work? I can’t get that to work either.
I followed all the steps in section 5, and live ethernet cable is connected to WAN port, but I don’t seem to have internet connectivity
root@localhost:~# apt-get update
Err:1 http://ports.ubuntu.com/ubuntu-ports xenial InRelease
Temporary failure resolving 'ports.ubuntu.com'
Err:2 http://ports.ubuntu.com/ubuntu-ports xenial-updates InRelease
Temporary failure resolving 'ports.ubuntu.com'
Err:3 http://ports.ubuntu.com/ubuntu-ports xenial-backports InRelease
Temporary failure resolving 'ports.ubuntu.com'
Err:4 http://ports.ubuntu.com/ubuntu-ports xenial-security InRelease
Temporary failure resolving 'ports.ubuntu.com'
Reading package lists... Done
W: Can't drop privileges for downloading as file '/var/lib/apt/lists/partial/ports.ubuntu.com_ubuntu-ports_dists_xenial_InRelease' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial/InRelease Temporary failure resolving 'ports.ubuntu.com'
W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial-updates/InRelease Temporary failure resolving 'ports.ubuntu.com'
W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial-backports/InRelease Temporary failure resolving 'ports.ubuntu.com'
W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial-security/InRelease Temporary failure resolving 'ports.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.
root@localhost:~# ifconfig
eth1 Link encap:Ethernet HWaddr 00:10:20:30:40:51
inet addr:192.168.2.231 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::210:20ff:fe30:4051/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:42 errors:0 dropped:0 overruns:0 frame:0
TX packets:17 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:21339 (21.3 KB) TX bytes:1256 (1.2 KB)
Interrupt:9
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:87 errors:0 dropped:0 overruns:0 frame:0
TX packets:87 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:8560 (8.5 KB) TX bytes:8560 (8.5 KB)
root@localhost:~# cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 8.8.8.8
root@localhost:~#
BOE
(Ning)
May 19, 2018, 12:17am
5
Network works fine, please ping 8.8.8.8 to make sure your link is ready, then check the DNS next.
edtguy
(Ed)
May 21, 2018, 1:23pm
6
In order to establish network connection, I had to use the LAN port, not the WAN port, and modify the instructions as follows:
2. Ifconfig eth0 or eth1:
ifconfig eth1 192.168.1.231
3. Add default gateway to let the board can reach internet:
route add default gw 192.168.1.1
4. Add a DNS:
echo 'nameserver 192.168.1.1'>>/etc/resolv.conf
echo 'nameserver 8.8.8.8' >> /etc/resolv.conf`
’
ping 8.8.8.8 works now, but when I execute step 5, ‘apt-get update’, it reports the following:
root@localhost:~# apt-get update
Hit:1 http://ports.ubuntu.com/ubuntu-ports xenial InRelease
Hit:2 http://ports.ubuntu.com/ubuntu-ports xenial-updates InRelease
Hit:3 http://ports.ubuntu.com/ubuntu-ports xenial-backports InRelease
Hit:4 http://ports.ubuntu.com/ubuntu-ports xenial-security InRelease
Reading package lists... Done
W: Can't drop privileges for downloading as file '/var/lib/apt/lists/partial/ports.ubuntu.com_ubuntu-ports_dists_xenial_InRelease' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
root@localhost:~#
The process creates directory /var/lib/apt/lists/partial with user _apt and group root. There doesn’t appear to be a way to override this.
请问,这个问题咋解决?我现在也遇到了。屏幕是绿的,串口打印不停这些