kernel

sudo time make -j4 bzImage -> make a kernel without modules

sudo time make -j4 - > make a kernel with modules

sudo time make modules_install -> install modules

make install -> install the kernel

path to .config kernel ubuntu

sudo cp /boot/config-$(uname -r) .config

git template

git config commit.template /home/$USER/Desktop

example template

# Place a subject above the body, limit to 50 chars

# Specify the body of the commit one line below the subject wrapping at
# 70 characters to keep things neatly organized.  Here you should explain
# why the commit was created.

# You can use multiple paragraphs and other formatting to describe the
# commit.  Add details as necessary until you have provided enough info
# about the commit.

#    - Bullets can be added
#    - But should be persistent
 
# Additionally, work items can be tracked using their id numbers.

# Work Items Resole: 557, 188, 122

git commit editor

git config core.editor "/usr/bin/gedit"

set cross plataform

git autocrlf input

cross plataform 

QEMU - install

install ubuntu in qemu

Sep 21, 2017

• Installation
• References

Installation

Creating a disk image of 10G to hold ubuntu

 $ qemu-img create -f qcow2 Ubuntu_Xenial-amd64.img 30G

Confirm both disk image and ubuntu’s iso image at same directory

$ qemu-system-x86_64 -hda Ubuntu_Xenial-amd64.img -boot d 
  -cdrom ubuntu-16.04.3-server-amd64.iso -m 512 -enable-kvm

• qemu-system-x86_64 – normal qemu command represented for x86_64 machine
• -hda – refers to hard disk, here I used the 30G hard disk image
• -boot [ a | c | d | n ] – boot from floppy disk(a), hard disk(c), cdrom(d), or etherboot(n). You may note that I used cdrom here. -cdrom – use iso image as cdrom to install ubuntu.
• -m 512 – allocate RAM of 512 MB for the virtual machine.
• -enable-kvm – enable KVM virtualization.

References

[1] https://en.wikibooks.org/wiki/QEMU/Images

[2] https://smdaudhilbe.wordpress.com/2013/04/11/how-to-install-ubuntu-inside-qemu-emulator-and-make-a-virtual-machine/

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