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Closed 2 years ago.
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I want to boot my Raspberry PI 3 B+ over TFTP from Uboot.
I built and successfully loaded U-Boot
I followed the instructions from https://elinux.org/RPi_U-Boot.
I could boot the RPI in Uboot and load the zImage over TFTP.
But the last step requires the execution of the bootz command which is not present in U-boot with default config.
The following commands are available:
boot bootd bootefi bootelf booti bootm bootp bootvx
U-Boot version
U-Boot 2021.01-rc2-00156-g7889951d0f
Is there an up-to-date instruction for raspberry pi and the latest versions of buildroot/uboot?
When running a 64bit U-Boot you need to use booti to boot the Linux kernel "Image" file rather than bootz to boot the kernel "zImage".
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Closed 1 year ago.
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My laptop used to come with windows 10, but then I decided to install ubuntu on it instead. Now I would like to install windows 10. Is there way to get windows 10 back?
First you will need a bootable USB - a USB flash drive that has at least 16GB of space (there are free programs that you will find available on internet to make the USB bootable), download Windows 10 ISO file and add to the USB.
Alter the BIOS sequence on your PC so your USB device is first. In most instances, the BIOS will usually not be automatically set to your device. If you skip this step, your computer will start regularly from your hard drive instead of getting boot information from your USB device, then follow the steps to install the windows OS.
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Closed 5 years ago.
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I need to turn on this mode for test of my new drivers.
My operations:
In bios I set a support of UEFI
Enable the option Security boot.
Reboot PC
Load msinfo32 and see
BIOS is in UEFI
Security boot is in off. Why?????
My OS is MS Win 10 x64 1703,
Videocard is Gigabyte Geforce GTX 650, the utility GPU-Z shows that card supports UEFI.
Ideas?
Need to set Platform Key in the BIOS. Thanks Alex for help.
Check the system summary, look for "BIOS MODE". It might be in legacy mode. (BIOS MODE)
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Closed 9 years ago.
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I've ubuntu on my system and my webcam works with this. When i compiled the newer kernel my webcam is not working. The obvious cause is that i haven't compiled the required driver.
I believe USBIP is the thing that i need to choose but i'm not able to find it while compiling kernel using menuconfig.
Please help
You can see the config for the running kernel in /boot/config-$(uname -r). Copy that file to .config and do make oldconfig to merge it to your new kernel.
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Closed 9 years ago.
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It is said that docker is not a VM and containers directly run on the host.
But why do containers need a base image OS ？
If process in containers run on the base image OS , what's the difference between a VM and docker(only the base image OS can be re-used and kept read-only?)
And why does it boot faster than a VM?
What makes up a base image OS ? kernel , rootfs or both?
You might want to refer to this blog post:
http://www.activestate.com/blog/2013/06/solomon-hykes-explains-docker
Simply put, Docker does a process isolation leveraging LXC (a kind of lightweight virtualisation built into Linux Kernel). The basic difference between LXC and VMs is that with LXC there is only one instance of Linux Kernel running. The base image OS is used for filesystem, binaries, etc.
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Closed 10 years ago.
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Now I got my Raspberry Pi. I am an experienced application software developer, but I've never done hardware stuff or low-level programming before. I want to build a minimal Linux, including drivers for all hardware on my Pi. For learning purpose, I don't want to install any pre-built Linux distribution on my Pi. Where should I start?
You can also check out Buildroot, http://buildroot.org. We have a default configuration for the Rasberry-Pi, and several contributors are working on the support for this platform.
Start with openembedded. There are several links already dedicated to raspberry pi, such as:
http://www.pimpmypi.com/blog/blogPost.php?blogPostID=7
http://blogs.distant-earth.com/wp/?p=377
http://www.openembedded.org/wiki/LayerIndex