Category Archives: vizz

virtualisation information

OSChina StratoVirt

OSChina StratoVirt

StratoVirt, a virtualization project implemented in the Rust language, provides both lightweight and standard virtual machine modes. For lightweight scenarios, StratoVirt achieves only the minimum set of devices required to run the business load, greatly reducing the types of devices that are redundant by traditional virtualization, significantly reducing overhead. Because in lightweight virtual machine mode, the memory base noise of a single virtual machine is less than 4MB, the startup time is less than 50ms, and the device’s extreme scalability supports millisecond latency.

Oracle @VirtualBox 6.1.6 now released fixes shared clipboard and other bugs

Oracle @VirtualBox 6.1.6 now released fixes shared clipboard and other bugs

unfortunately you CANT do an inplace update because vboxnetdhcp process blocks the update so

  • shutdown VirtualBox 6.1.2 first
  • REBOOT your (windows 10) pc
  • then run VirtualBox 6.1.6 installer

vboxinstall.png

oracle vbox bug tracker

CentOS 8 & IBM Red Hat 8 QEMU & KVM

CentOS 8 & IBM Red Hat 8 support QEMU & KVM

# yum groupinstall "Virtualization Host"
# yum install virt-install
# yum install virt-manager
# yum install libvirt-nss
# systemctl enable --now libvirtd

however note that IBM Red Hat say

while QEMU is an essential component of the architecture, it is not intended to be used directly on RHEL 8 systems, due to security concerns. Therefore, using qemu-* commands is not supported by Red Hat, and it is highly recommended to interact with QEMU using libvirt.

so on centos 8 and ibm red hat 8 instead of qemu-* use these commands

$ virt-host-validate
$ virt-install
$ virt-manager
$ virt-viewer
$ virsh

See also

and red hat developers also can refer to

how to run @balena_io #kvm #qemu images

how to run @balena_io #kvm #qemu images

On systems with KVM support:

$ qemu-system-x86_64 -drive file=resin-image-qemux86-64.img, \
media=disk, cache=none, format=raw \
-net nic,model=virtio -net user \
-m 512 -nographic -machine type=pc, -smp 4 \
accel=kvm -cpu host

On systems without KVM support:

$ qemu-system-x86_64 -drive file=resin-image-qemux86-64.img, \ 
media=disk, cache=none, format=raw \
-net nic,model=virtio -net user \
-m 512 -nographic -machine type=pc -smp 4

see

quay.io is moving to cdn.quay.io on 25apr2020 #cloud #devops

quay.io is moving to cdn.quay.io

on Saturday, 25 April 2020 at 4 PM ET quay.io will be rotating the domain name returned for CloudFront based blob requests from its current domain to ‘cdn.quay.io’. If you currently whitelist the quay.io CloudFront domain name, please make sure to *add* ‘cdn.quay.io’ to your whitelist 

IBM red hat 7 & 8 ubi container images and repos

IBM Red Hat 7 UBI container images (public)

  • registry.access.redhat.com/ubi7
  • registry.access.redhat.com/ubi7/ubi
  • registry.access.redhat.com/ubi7/ubi-minimal

IBM Red Hat 7 UBI container images (subscription reqd)

  • registry.redhat.io/ubi7
  • registry.redhat.io/ubi7/ubi
  • registry.redhat.io/ubi7/ubi-minimal

IBM Red Hat 7 UBI os and optional repos

IBM Red Hat 8 UBI container images (public)

  • registry.access.redhat.com/ubi8
  • registry.access.redhat.com/ubi8/ubi
  • registry.access.redhat.com/ubi8/ubi-minimal

IBM Red Hat 8 UBI container images (subscription required)

  • registry.redhat.io/ubi8
  • registry.redhat.io/ubi8/ubi
  • registry.redhat.io/ubi8/ubi-minimal

IBM Red Hat 8 UBI BaseOS & AppStream repos

see also

redhat developers only