Dichiarazione di non responsabilità:
Ora uso virt-manager
per creare e gestire la mia VM ed è davvero un salvavita. Può essere utilizzato in remoto (da una terza macchina, in genere la workstation) se l'host non ha una visualizzazione grafica.
Le occorrenze vnc
nelle esercitazioni di installazione che ho trovato mi hanno fatto pensare che la procedura "consigliata" richiedesse elementi X su host, guest o entrambi. Assolutamente no. Errore mio. Se ti trovi nella stessa situazione, pensaci due volte prima di provare a installare la VM dalla riga di comando.
Sto provando a installare una VM Debian in un host Debian usando virt-install
e non so come passarla all'immagine .iso.
virt-install --connect qemu:///system --virt-type kvm --name prod --ram 6144 --disk /srv/vm/prod.qcow,format=qcow2,size=10 --location=/home/jerome/debian-8.0.0-amd64-netinst.iso --network bridge=br0 --os-type linux --os-variant debianwheezy --extra-args='console=tty0 console=ttyS0,115200n8 serial'
Starting install...
Retrieving file info... | 160 B 00:00 ...
ERROR Could not find an installable distribution at '/home/jerome/debian-8.0.0-amd64-netinst.iso'
The location must be the root directory of an install tree.
Domain installation does not appear to have been successful.
If it was, you can restart your domain by running:
virsh --connect qemu:///system start prod
otherwise, please restart your installation.
root@versailles:/etc#
Le soluzioni che ho visto sembrano piuttosto distorte, come usare apache per servire localmente l'immagine .iso come se provenisse da un posto lontano.
- Linux Mint 14: installa Ubuntu 12.10 Server in KVM tramite CLI (no GUI)
- [Xen-users] installa un vm con virt-install (è Xen ma sembra che sia lo stesso problema comunque.
Non posso credere che sia così complicato. È?
man virt-install
dice:
If you want to use those options with CDROM media, you have a few options:
* Run virt-install as root and do --location ISO
* Mount the ISO at a local directory, and do --location DIRECTORY
* Mount the ISO at a local directory, export that directory over local http, and do --location http://localhost/DIRECTORY
Non è quello che sto facendo?
Qualcuno dice che ha spostato .iso su / cdrom e ha funzionato, ma non capivo esattamente cosa facesse e non potevo riprodurlo.
Non posso usare --cdrom
invece di --location
come in questa domanda perché --extra-args
funziona solo se specificato con --location
.
virt-install --connect qemu:///system --virt-type kvm --name prod --ram 6144 --disk /srv/vm/prod.qcow,format=qcow2,size=10 --cdrom=/home/jerome/debian-8.0.0-amd64-netinst.iso --network bridge=br0 --os-type linux --os-variant debianwheezy --extra-args='console=tty0 console=ttyS0,115200n8 serial'
ERROR --extra-args only work if specified with --location. See the man page for examples of using --location with CDROM media
Modificare:
Accedi con --debug
virt-install --connect qemu:///system --virt-type kvm --name prod --ram 6144 --disk /srv/vm/prod.qcow,format=qcow2,size=10 --location=/home/jerome/debian-8.0.0-amd64-netinst.iso --network bridge=br0 --os-type linux --os-variant debianwheezy --extra-args='console=tty0 console=ttyS0,115200n8 serial' --debug
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:187) Launched with command line: /usr/share/virt-manager/virt-install --connect qemu:///system --virt-type kvm --name prod --ram 6144 --disk /srv/vm/prod.qcow,format=qcow2,size=10 --location=/home/jerome/debian-8.0.0-amd64-netinst.iso --network bridge=br0 --os-type linux --os-variant debianwheezy --extra-args=console=tty0 console=ttyS0,115200n8 serial --debug
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:195) Requesting libvirt URI qemu:///system
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:199) Received libvirt URI qemu:///system
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (virt-install:193) Requesting virt method 'default', hv type 'kvm'.
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (virt-install:432) Received virt method 'kvm'
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (virt-install:433) Hypervisor name is 'hvm'
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:476) DISPLAY is not set: defaulting to nographics.
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (guest:208) Setting Guest.os_variant to 'debianwheezy'
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (diskbackend:171) Path '/srv/vm' is target for pool 'srv-kvm'. Creating volume 'prod.qcow'.
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (connection:228) Fetching volume XML failed: Storage volume not found: no storage vol with matching path '/media/cdrom0/debian-8.0.0-amd64-netinst.iso'
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (virt-install:551) Guest.has_install_phase: True
Starting install...
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (distroinstaller:417) Using scratchdir=/var/lib/libvirt/boot
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:204) Preparing mount at /var/lib/libvirt/boot/virtinstmnt.srz86f
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:214) mount cmd: ['/bin/mount', '-o', 'ro,loop', '/home/jerome/debian-8.0.0-amd64-netinst.iso', '/var/lib/libvirt/boot/virtinstmnt.srz86f']
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:302) Finding distro store for location=/home/jerome/debian-8.0.0-amd64-netinst.iso
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/.treeinfo
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:325) Prioritizing distro store=<class 'virtinst.urlfetcher.DebianDistro'>
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/current/images/MANIFEST
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/daily/MANIFEST
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/Fedora
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:99) Fetching URI: /var/lib/libvirt/boot/virtinstmnt.srz86f/.disk/info
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:110) Saved file to /var/lib/libvirt/boot/virtinst-info.lZMVqL
Retrieving file info... | 160 B 00:00 ...
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:1016) Regex didn't match, not a ALT Linux distro
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/current/images/MANIFEST
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/install/netboot/version.info
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/SL
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/directory.yast
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/CentOS
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/VERSION
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/Server
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/Client
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/RedHat
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/images/pxeboot/vmlinuz
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/images/boot.iso
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/boot/boot.iso
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/current/images/netboot/mini.iso
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/install/images/boot.iso
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:225) Cleaning up mount at /var/lib/libvirt/boot/virtinstmnt.srz86f
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:234) File "/usr/share/virt-manager/virt-install", line 876, in <module>
sys.exit(main())
File "/usr/share/virt-manager/virt-install", line 870, in main
start_install(guest, continue_inst, options)
File "/usr/share/virt-manager/virt-install", line 588, in start_install
fail(e, do_exit=False)
File "/usr/share/virt-manager/virtinst/cli.py", line 234, in fail
logging.debug("".join(traceback.format_stack()))
[mer., 03 juin 2015 17:46:12 virt-install 12991] ERROR (cli:235) Could not find an installable distribution at '/home/jerome/debian-8.0.0-amd64-netinst.iso'
The location must be the root directory of an install tree.
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:237)
Traceback (most recent call last):
File "/usr/share/virt-manager/virt-install", line 560, in start_install
dom = guest.start_install(meter=meter, noboot=options.noreboot)
File "/usr/share/virt-manager/virtinst/guest.py", line 384, in start_install
self._prepare_install(meter, dry)
File "/usr/share/virt-manager/virtinst/guest.py", line 277, in _prepare_install
util.make_scratchdir(self.conn, self.type))
File "/usr/share/virt-manager/virtinst/installer.py", line 201, in prepare
self._prepare(guest, meter, scratchdir)
File "/usr/share/virt-manager/virtinst/distroinstaller.py", line 444, in _prepare
self._prepare_kernel_url(guest, fetcher)
File "/usr/share/virt-manager/virtinst/distroinstaller.py", line 347, in _prepare_kernel_url
store = urlfetcher.getDistroStore(guest, fetcher)
File "/usr/share/virt-manager/virtinst/urlfetcher.py", line 346, in getDistroStore
fetcher.location))
ValueError: Could not find an installable distribution at '/home/jerome/debian-8.0.0-amd64-netinst.iso'
The location must be the root directory of an install tree.
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:248) Domain installation does not appear to have been successful.
If it was, you can restart your domain by running:
virsh --connect qemu:///system start prod
otherwise, please restart your installation.
Domain installation does not appear to have been successful.
If it was, you can restart your domain by running:
virsh --connect qemu:///system start prod
otherwise, please restart your installation.
Funziona con, --location http://ftp.us.debian.org/debian/dists/stable/main/installer-amd64/
ma non è un peccato farlo quando un'immagine .iso è disponibile localmente?
Perdita di tracciabilità: non è possibile riprodurre in seguito, accertandosi di ottenere esattamente la stessa fonte.
Uso moltiplicato della larghezza di banda da server / mirror.
Necessità di accesso a Internet.
Più lentamente.