ubuntu News - Page 134 of 180 - CNX Software

August 11, 2015August 11, 2015 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

Hardkernel ODROID-C1+ Development Board is Now Shipping for $37

We already knew Hardkernel was working on ODROID-C1+ development board, an update the popular ODROID-C1 board with the same Amlogic S805 processor, storage and memory, but with a standard HDMI port replacing the micro HDMI port, I2S support, better micro SD card and HDMI-CEC support, an micro USB OTG port that can be used to power the board, and an included heatsink. The board is now up for sale for $37, or just $2 more than the original ODROID-C1 board. ODROID-C1+ specifications: SoC- Amlogic S805 quad core Cortex-A5 processor with a quad core Mali-450MP2 GPU System Memory – 1GB DDR3 Storage – eMMC 4.5 HS200 module socket for up to 64GB storage, and UHS-1 SDR50 micro SD slot Video & Audio Output – Type A HDMI port with CEC support Connectivity – Gigabit Ethernet USB – 4x USB 2.0 host ports, 1x micro USB OTG port Expansion Headers 40-pin Raspberry […]

August 10, 2015August 10, 2015 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

ps_mem Shows Programs RAM Usage in Linux

There are several ways to see how much RAM is used in a Linux system with tools like free, vmstat, top, etc…, but today I’ve come across ps_mem which displays the RAM used for each program in a neat way. The post on lintut.com explains how to install it on Centos / Fedora:

yum install ps_mem -y

1	yum install ps_mem -y

As a Ubuntu user, I immediately tried apt-get install ps_mem, but there isn’t such package. After running apt-file search, I found it in w3af-console package:

sudo apt-get install w3af-console
sudo chmod +x /usr/share/w3af/core/controllers/profiling/ps_mem.py
sudo ln -s /usr/share/w3af/core/controllers/profiling/ps_mem.py /usr/sbin/ps_mem

sudo apt-get install w3af-console

sudo chmod +x /usr/share/w3af/core/controllers/profiling/ps_mem.py

sudo ln -s /usr/share/w3af/core/controllers/profiling/ps_mem.py /usr/sbin/ps_mem

Another way to install the script is to simply get it from Github. Running the command without options will list of programs with RAM usage from the smallest to the largest:

sudo ps_mem
 Private  +   Shared  =  RAM used	Program 

  4.0 KiB +  33.0 KiB =  37.0 KiB	inetutils-inetd
  4.0 KiB +  35.0 KiB =  39.0 KiB	rpc.idmapd
  4.0 KiB +  39.5 KiB =  43.5 KiB	rpc.mountd
  4.0 KiB +  48.5 KiB =  52.5 KiB	rpc.statd
  8.0 KiB +  62.0 KiB =  70.0 KiB	atieventsd
 44.0 KiB +  46.5 KiB =  90.5 KiB	rtkit-daemon
 96.0 KiB +  18.5 KiB = 114.5 KiB	cat
............
150.5 MiB +   5.1 MiB = 155.6 MiB	gimp-2.8
186.5 MiB +   9.5 MiB = 196.0 MiB	plugin-container
270.8 MiB +  12.1 MiB = 282.9 MiB	compiz
348.5 MiB +  19.0 MiB = 367.5 MiB	nautilus
409.3 MiB +   3.4 MiB = 412.7 MiB	thunderbird
393.8 MiB +  28.0 MiB = 421.8 MiB	Xorg
  2.1 GiB +  11.0 MiB =   2.1 GiB	firefox
---------------------------------
                          5.0 GiB
=================================

sudo ps_mem

Private + Shared = RAM used Program

4.0 KiB + 33.0 KiB = 37.0 KiB inetutils-inetd

4.0 KiB + 35.0 KiB = 39.0 KiB rpc.idmapd

4.0 KiB + 39.5 KiB = 43.5 KiB rpc.mountd

4.0 KiB + 48.5 KiB = 52.5 KiB rpc.statd

8.0 KiB + 62.0 KiB = 70.0 KiB atieventsd

44.0 KiB + 46.5 KiB = 90.5 KiB rtkit-daemon

96.0 KiB + 18.5 KiB = 114.5 KiB cat

............

150.5 MiB + 5.1 MiB = 155.6 MiB gimp-2.8

186.5 MiB + 9.5 MiB = 196.0 MiB plugin-container

270.8 MiB + 12.1 MiB = 282.9 MiB compiz

348.5 MiB + 19.0 MiB = 367.5 MiB nautilus

409.3 MiB + 3.4 MiB = 412.7 MiB thunderbird

393.8 MiB + 28.0 MiB = 421.8 MiB Xorg

2.1 GiB + 11.0 MiB = 2.1 GiB firefox

---------------------------------

5.0 GiB

=================================

You can also check the full command line for the programs: sudo ps_mem -s Private + Shared = RAM used Program 4.0 KiB + 31.5 KiB = 35.5 KiB /sbin/getty -8 38400 tty5 4.0 KiB + 32.0 KiB […]

August 6, 2015 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

How to Install and Run Linux on Zidoo X1 TV Box

Now that I’ve completed Zidoo X1 review, I’ve decided to try out Ubuntu on the mini PC following a tip from one reader that Orange Pi 2 images can run on the platform since it’s based on the same Allwinner H3 processor, but with some limitations such as WiFi not working. There are three Linux firmware images for Orange Pi 2 on the download page: Lubuntu, Raspbian, and Debian server. I decided to go with Lubuntu image. First you need to download Lubuntu_1404_For_OrangePi2-mini2_v0_8_0_.img.xz image from Google Drive or Baidu, uncompress it, and then flash the image to a Class 10 micro SD card in Windows or Linux. I ran the following command line in a computer running Ubuntu 14.04:

sudo dd if=Lubuntu_1404_For_OrangePi2-mini2_v0_8_0_.img | pv | sudo dd of=/dev/sdX bs=16M

1	sudo dd if=Lubuntu_1404_For_OrangePi2-mini2_v0_8_0_.img \| pv \| sudo dd of=/dev/sdX bs=16M

Where X in sdX is the letter of your micro SD card, which you can find with lsblk. In some platforms, it might be /dev/mmcblkX instead of /dev/sdX. Once it’s […]

August 3, 2015December 28, 2015 by Jean-Luc Aufranc (CNXSoft) - 24 Comments

Cubieboard 5 (aka CubieTruck Plus) Development Board is Powered by Allwinner H8 SoC

Merrii unveiled H7 Hummingbird board based on Allwinner H8 octa core Cortex A7 processor a few days ago, but it turns out they’ve not been the only ones working on a board with that processor, as Cubietech also showcased prototypes of Cubieboard 5, which they also call CubieTruck Plus, around mid July. They’ve only shown pictures of the board, without much more information, but we can derive most specifications from the pictures: SoC – AllWinner H8 octa-core ARM Cortex-A7 processor @ up to 2.0GHz with PowerVR SGX544 GPU @ up to 700MHz System Memory – 2GB RAM (4x H5TQ4G63AFR-PCB DDR3 chips) Storage – FORESEE eMMC or NAND flash + micro SD card slot + SATA port (via GL830 USB 2.0 to SATA bridge) Video Output – HDMI and DisplayPort Audio – HDMI, optical S/PDIF, 3.5mm headphone jack, built-in microphone Connectivity – Gigabit Ethernet (RTL8211E), dual band WiFi 802.11 b/g/n and […]

August 1, 2015August 2, 2015 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Cloudshell for XU4 is a $39 NAS Kit for ODROID-XU4 Board

Hardkernel launched ODROID-XU4 development board a couple of weeks ago. The board is a low cost ($74) update to ODROID-XU3 development board, with an Exynos 5422 octa core processor (4x A15, 4x A7), 2GB RAM, Gigabit Ethernet and USB 3.0, making it a pretty good target for a NAS. It’s easy to connect all requires parts such as hard drive and power supply together, but it would normally be a mess on your desk. So the company create a NAS kit for the board with an enclosure, cables, fans, and even an LCD display with they call Cloudshell for XU4 for sell for $39, so you can get a high relatively high performance NAS for around $113 + shipping, which will vary depending on your distributor, as well as an HDD or SSD drive. Cloudshell kit content: Enclosure with top and bottom covers, rear, front and side panels. Available in […]

July 31, 2015 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linaro 15.07 Release with Linux 4.2 and Android 5.1

Linaro 15.07 has been released with Linux 4.2-rc3 (Baseline), Linux 3.10.83, 3.14.45 and 3.18.17 (LSK), and Android 5.1.1_r8. The Linux kernel got various bug fixes, and a power reduction technique has been implemented for Qualcomm processor. Progress has been made to boot Android with UEFI on Hikey board, and work is still on-going on 96boards including Hisilicon Hikey, Qualcomm DragonBoard 410c, and an upcoming and yet-to-be-formally-announced Marvell PXA1928 board called Helium. Highlights of this release: Linux Linaro 4.2-rc3-2015.07 linaro-android topic updated to 4.2-rc3 and recent AOSP/android-3.18 included GATOR version 5.21.1 llct-misc-fixes topic: “HACK: of: Limit FDT size for CRC check on arm64” has been dropped. FVP model was the last target to require this hack, but the new FVP firmware doesn’t need it anymore updated integration-linaro-vexpress64 topic by ARM LT: Versatile Express TC2 support is back, HDLCD display now works on TC2, the topic will be renamed to integration-linaro-vexpress next […]

July 29, 2015 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

Nvidia SHIELD TV Benchmarks in Ubuntu Shows Core i3 Like Performance

Nvidia SHIELD Android TV was announced this March with Nvidia Tegra X1 octa-core Cortex A57 + A53 processor. So far, I had not seen any Ubuntu or other Linux distribution port, but Michael Mirabel of Phoronix got remote access to a Shield TV PRO – model with a 500GB hard drive – running Ubuntu 14.10. It’s not clear who provided access, either Nvidia or third parties, but somebody posted an Ubuntu 14.10 port on XDA Developers Forums recently so it might be that one. He obviously ran Phoronix Test Suite on the device, and compared to it some other ARM devices (Compule Utilite, Jetson TK1), MIPS Creator CI20, low power x86 devices (Compute Stick, Intel NUC with Celeron N2820), and an Intel Core i3-5010u NUC. The Tegra X1 platform easily beats all other low power platforms, and comes close to the Core i3 mini PC in most tests. In the […]

July 16, 2015 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

Kodi 14.2 Linux Ported to Rockchip RK3288 with VPU Hardware Decoding

Rockchip RK3288 is one of the most popular platforms for TV boxes, and while most boxes are sold with Android OS, it can also run various Linux distributions with two main caveats: 2D/3D GPU acceleration, and hardware video decoding by the VPU. It appears the last two have been worked on, as yesterday, I got tipped that Kodi 14.2 Linux was running on Ugoos UT3 and Radxa Rock2 Square. Since both hardware platforms showcased a Kodi port at the about same time, it’s probably safe to assume they use the same implementation (despite slightly different build dates May 29 vs June 6), which has been developed by “Marc” (or is it MAC?) using the Android libraries and libhybris for video decoding, raw2 device driver for 2D HW accelerated blitting and converting frames, and ARM OpenGL library, driver and examples, among other software packages. So let’s check the demos starting with […]