3) [!] Installation source 4) [!] Software selection
(Error setting up software (Installation source not set
source)
You need to check location and url address in kickstart file:
url –url=”http://mirror.litnet.lt/centos/7/os/x86_64/”
virt-install –location=http://mirror.litnet.lt/centos/7/os/x86_64/
Error: --disk path=/var/lib/libvirt/images/centos7.qcow2,size=15,device=disk,bus=virtio,format=qcow2: 'utf-8' codec can't decode byte 0xf0 in position 0: invalid continuation byte
sudo virt-install --connect=qemu:///system --network=bridge:virbr0 --extra-args="ks=http://192.168.0.101:1111/centos7.cfg console=tty0 console=ttyS0,115200" --name=aaa --disk path=/var/lib/libvirt/images/centos7.qcow2,size=15,device=disk,bus=virtio,format=qcow2 --ram 1500 --vcpus=1 --check-cpu --accelerate --hvm --location=http://mirror.cherryservers.com/centos/7/os/x86_64/ --nographics
virsh # pool-list
Name State Autostart
------------------------------------
boot-scratch active yes
images active yes
tmp active yes
virtio-win active yes
vit active yes
virsh # pool-destroy vit
Pool vit destroyed
virsh # pool-destroy virtio-win
Pool virtio-win destroyed
'utf-8' codec can't decode byte 0xf0 in position 0: invalid continuation byte error was because of virStorageVolGetName:
File "/usr/lib64/python3.7/site-packages/libvirt.py", line 3650, in name
ret = libvirtmod.virStorageVolGetName(self._o)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xf0 in position 0: invalid continuation byte
[Mon, 17 Feb 2020 15:26:54 virt-install 57908] DEBUG (cli:263) File "/usr/share/virt-manager/virt-install", line 1005, in
virt-install should be working now again
dd if=/dev/vg_kvm/vsv999-03ly-o5sq7ktzgnbva56l of=/backup/data.hdd bs=512 conv=noerror,sync
qemu-img info /backup/data.hdd
image: /backup/data.hdd
file format: raw
virtual size: 50G (53687091200 bytes)
disk size: 50G
guestmount -a /backup/data.hdd -i --ro /mnt
ls -la /mnt
wget http://wiki.qemu-project.org/download/qemu-2.3.0.tar.bz2
./configure –disable-kvm [–prefix=PFX] [–target-list=”i386-softmmu x86_64-softmmu”]
make
make install
virsh # change-media c6 hdc /var/lib/libvirt/iso/CentOS-6.4-x86_64-minimal.iso –insert
domblklist c6
The qemu/kvm process runs mostly like a normal Linux program. It allocates its memory with normal malloc() or mmap() calls. If a guest is going to have 1GB of physical memory, qemu/kvm will effectively do a malloc(1<<30), allocating 1GB of host virtual space. However, just like a normal program doing a malloc(), there is no actual physical memory allocated at the time of the malloc(). It will not be actually allocated until the first time it is touched.
Once the guest is running, it sees that malloc()’d memory area as being its physical memory. If the guest’s kernel were to access what it sees as physical address 0x0, it will see the first page of that malloc() done by the qemu/kvm process.
It used to be that every time a KVM guest changed its page tables, the host had to be involved. The host would validate that the entries the guest put in its page tables were valid and that they did not access any memory which was not allowed. It did this with two mechanisms:
shadow page tables
VMX/AMD-V extensions
<video>
<model type='vga' vram='8192' heads='1'>
<acceleration accel3d='yes' accel2d='yes'/>
</model>
</video>
To create new Centos 6 guest from command line run this:
qemu-kvm -m 512 -drive file=/home/vit/kvm/centos,if=virtio -cdrom /home/vit/kvm/CentOS-6.4-x86_64-minimal.iso -net nic -net tap,ifname=tap0,script=no,downscript=no -smp 4 -cpu host -boot d -daemonize
-m MB
-drive disk image
-net network
-boot d boot from cdrom
If you love Fedora and want use it on your server, but don’t like graphical interface. Its not problem, lets download Fedora ISO image like Fedora-Live-LXDE-x86_64-19-1.iso from http://fedoraproject.org/en/get-fedora-options
virt-install –connect qemu:///system -n Fedora19 –disk path=/var/lib/libvirt/images/guest.qcow2,format=qcow2,bus=virtio,cache=none –cdrom /tmp/Fedora-Live-LXDE-x86_64-19-1.iso –video=vga –network=bridge:virbr0,model=e1000 –accelerate –noapic –keymap=en-us –ram 1024
before you should create qcow disk image:
qemu-img create -f qcow2 /var/lib/libvirt/images/guest.qcow2 10G -o preallocation=metadata
I am using bridge networking so can access Fedora using SSH. You should disable LXDE graphical interface, because I guess you don’t need it.
ln -sf /lib/systemd/system/multi-user.target /etc/systemd/system/default.target
and reboot your Fedora guest