virt-tar(1)

НАЗВА
virt-tar - Extract or upload files to a virtual machine

КОРОТКИЙ ОПИС
 virt-tar [--options] -x domname directory tarball

 virt-tar [--options] -u domname tarball directory

 virt-tar [--options] disk.img [disk.img ...] -x directory tarball

 virt-tar [--options] disk.img [disk.img ...] -u tarball directory

ЗАСТАРІЛЕ
This tool is obsolete. Use virt-copy-in(1), virt-copy-out(1), virt-tar-in(1), virt-tar-out(1) as replacements.

ПРИКЛАДИ
Download "/home" from the VM into a local tarball:

 virt-tar -x domname /home home.tar

 virt-tar -zx domname /home home.tar.gz

Upload a local tarball and unpack it inside "/tmp" in the VM:

 virt-tar -u domname uploadstuff.tar /tmp

 virt-tar -zu domname uploadstuff.tar.gz /tmp

ПОПЕРЕДЖЕННЯ
You must not use "virt-tar" with the -u option (upload) on live virtual machines. If you do this, you risk disk corruption in the VM. "virt-tar" tries to stop you from doing this, but doesn't catch all cases.

You can use -x (extract) on live virtual machines, but you might get inconsistent results or errors if there is filesystem activity inside the VM. If the live VM is synched and quiescent, then "virt-tar" will usually work, but the only way to guarantee consistent results is if the virtual machine is shut down.

ОПИС
"virt-tar" is a general purpose archive tool for downloading and uploading parts of a guest filesystem. There are many possibilities: making backups, uploading data files, snooping on guest activity, fixing or customizing guests, etc.

If you want to just view a single file, use virt-cat(1). If you just want to edit a single file, use virt-edit(1). For more complex cases you should look at the guestfish(1) tool.

There are two modes of operation: -x (eXtract) downloads a directory and its contents (recursively) from the virtual machine into a local tarball. -u uploads from a local tarball, unpacking it into a directory inside the virtual machine. You cannot use these two options together.

In addition, you may need to use the -z (gZip) option to enable compression. When uploading, you have to specify -z if the upload file is compressed because virt-tar won't detect this on its own.

"virt-tar" can only handle tar (optionally gzipped) format tarballs. For example it cannot do PKZip files or bzip2 compression. If you want that then you'll have to rebuild the tarballs yourself. (This is a limitation of the libguestfs(3) API).

ПАРАМЕТРИ

--help
    Показати коротку довідку.

--version
    Показати дані щодо версії і завершити роботу.

-c адреса
--connect адреса
    Якщо використовується libvirt, встановити з’єднання з вказаним URI. Якщо пропущено, з’єднання буде встановлено з типовим гіпервізором libvirt.

    Якщо вказати блокові пристрої гостьових систем безпосередньо, libvirt не буде використовуватися взагалі.

--format raw
    Specify the format of disk images given on the command line. If this is omitted then the format is autodetected from the content of the disk image.

    If disk images are requested from libvirt, then this program asks libvirt for this information. In this case, the value of the format parameter is ignored.

    If working with untrusted raw-format guest disk images, you should ensure the format is always specified.

-x
--extract
--download
-u
--upload
    Use -x to extract (download) a directory from a virtual machine to a local tarball.

    Use -u to upload and unpack from a local tarball into a virtual machine. Please read the "WARNING" section above before using this option.

    You must specify exactly one of these options.

-z
--gzip
    Specify that the input or output tarball is gzip-compressed.

ТАКОЖ ПЕРЕГЛЯНЬТЕ
guestfs(3), guestfish(1), virt-cat(1), virt-edit(1), virt-copy-in(1), virt-copy-out(1), virt-tar-in(1), virt-tar-out(1), Sys::Guestfs(3), Sys::Virt(3), http://libguestfs.org/.

АВТОР
Richard W.M. Jones http://people.redhat.com/~rjones/

АВТОРСЬКІ ПРАВА
© Red Hat Inc., 2009

LICENSE

BUGS
To get a list of bugs against libguestfs, use this link: https://bugzilla.redhat.com/buglist.cgi?component=libguestfs&product=Virtualization+Tools

To report a new bug against libguestfs, use this link: https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools

When reporting a bug, please supply:

•   The version of libguestfs.

•   Where you got libguestfs (eg. which Linux distro, compiled from source, etc)

•   Describe the bug accurately and give a way to reproduce it.

•   Run libguestfs-test-tool(1) and paste the complete, unedited output into the bug report.