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  1. Jarret B

    Ubuntu 18.04 64-bit for Raspberry Pi 4

    You would have to contact the person at https://github.com/sakaki-/bcm2711-kernel/releases/. They made the kernel themselves and may be able to make a 16.04 kernel. Ubuntu and other systems should be available soon in a 64-bit version.
  2. Jarret B

    Sandboxing with Firejail

    Security on a Linux system is very important for any Administrator or regular user. Security on home systems can be as important as a business server. Home systems can contain personal information that can be used for identity theft, credit card fraud, etc. Business servers can contain...
  3. Jarret B

    Linux on Embedded Ryzen with Radeon

    American Micro Devices (AMD) has released the Ryzen processors which works very well with Linux. The embedded processor also contains a Graphical Processing Unit (GPU) which is an AMD Ryzen Vega. The board I am using is the IBase 918f-1605 to install Linux. Linux can be installed from a...
  4. Jarret B

    Ubuntu 18.04 64-bit for Raspberry Pi 4

    The Raspberry Pi Foundation (www.raspberrypi.org) shows what they have available. Since Raspberry Pi 4 is new there isn't too much available yet. I do not think there is a 16.04 version available yet, but who knows if one may become available for download in the near future.
  5. Jarret B

    RockPro64 Review

    They should be soon from what I read.
  6. Jarret B

    RockPro64 Review

    The RockPro64 is a Single Board Computer (SBC) made by the Pine64 organization found at www.Pine64.org. The organization makes Linux phones, SBCs, Laptops, watch developer kits and other items. PinePro64 The SBC has the following specifications: Processor: Rockchip RK3399 SOC...
  7. Jarret B

    Securing Ubuntu with AppArmor

    Many businesses and organizations need ways to limit access to specific applications. Application Armor (AppArmor) can prevent apps from accessing specific folders or even the Internet. AppArmor provides Mandatory Access Control (MAC). The MAC is a profile which is set up per program to...
  8. Jarret B

    BeagleBone Blue and Black

    Previously I wrote an article on the BeagleBone PocketBeagle which was a very small single-board computer. In this article I will go over the specs on two slightly larger boards. BeagleBone Blue The main specs for BeagleBone Blue are: AM335x 1GHz ARM® Cortex-A8 processor 512MB...
  9. Jarret B

    Installing Linux on an iMac

    Many people may like the look and feel of Linux over other Desktop Operating Systems (OS). For this reason someone may want to install Linux on a Mac. There are many types of Apple Mac systems available. For this article I used an iMac 6.1 from late 2006. The specs on the iMac are as...
  10. Jarret B

    PocketBeagle Single Board Review

    The PocketBeagle is a single board PC which is different from other single board systems. Most other single board systems are based off the ARM Application (A series) chips. The Pocket Beagle has a Cortex-A8 CPU as well as an M series or Micro-controller. The Micro-controller is a Cortex-M3...
  11. Jarret B

    LFCS – GRUB Installation and Security

    After the previous article on resetting the Root password (https://linux.org/threads/lfcs-–-how-to-recover-root-password.25257/) you may wonder at the security of Linux. If you can use the GRand Unified Bootloader (GRUB) to bypass Root privileges then there seems to be no security. In this...
  12. Jarret B

    Loading Linux Mint onto 2007 White Macbooks

    You may need rEFInd as a boot loader as well as disable SIP in Recovery Mode. You may look into completely resetting the Mac to re-enable everything the school disabled (factory reset). This may require putting MacOSx back on it temporarily until you get the system back to default. Getting...
  13. Jarret B

    Loading Linux Mint onto 2007 White Macbooks

    It looks like a straightforward process. I have not tried it yet. Make sure the CPU is an Intel or AMD. During installation were there any errors?
  14. Jarret B

    Loading Linux Mint onto 2007 White Macbooks

    Is the version of Linux Mint a 32 or 64 bit OS? Some Macs have a special chip which only allows a 64-bit OS to be MacOS. Any other 32-bit OS is allowed by the chip. Maybe you can disable the Security and/or EFI?
  15. Jarret B

    I CAN't TURN ON WI-FI!!!

    Try this link to get the driver. https://github.com/kelebek333/rtl8188fu The instructions are there as well. Hope this helps.
  16. Jarret B

    I CAN't TURN ON WI-FI!!!

    Hello, Can you insert the dongle and post back a screenshot of the command 'lsusb' from a Terminal? (I assume this is a Wi-Fi dongle.) If this is an internal card the post back a screenshot of 'lspci'. This should show if the system is even recognizing the device.
  17. Jarret B

    Ubuntu 18.04 64-bit for Raspberry Pi 4

    Anyone who may have a new Raspberry Pi 4 (RPi4) will love its improvements over the Raspberry Pi 3 (RPi3). The only issue is at the time of this writing there wasn’t a 64-bit Operating System (OS) for it. In the next few months many distros will probably release a 64-bit version for it...
  18. Jarret B

    LFCS – How to Recover ROOT Password

    There are many reasons why a Root password may be lost or forgotten. In business settings it may be as simple as the administrator no longer works for the company. The LFCS exam deals with the CentOS 7 Operating System but I will also cover changing the Root password on an 18.04 Ubuntu...
  19. Jarret B

    Raspberry Pi 4 Review and Benchmarks

    For those who haven’t heard, the newest version of the Raspberry Pi (RPi) has been released. Technically it is the Raspberry Pi 4 Model B (RPi4). The Raspberry Pi 4 is a 64-bit single board system. The single board measures 3.5 x 2.3 x .76 inches in size. The board contains the following...
  20. Jarret B

    GRUB Themes

    When I wrote my last article on Grub Configuration I found a lot of people wanting to use GRUB Themes. Many people said it was too complicated so I will try to cover a basic theme to get you started. Looking at Figure 1 you can see a basic one that I made which we will go over how to make...
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