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Final step for the following: Fixes: https://github.com/QubesOS/qubes-issues/issues/2450 Fixes: https://github.com/QubesOS/qubes-issues/issues/2464 Follows: https://github.com/QubesOS/qubes-doc/pull/246 Follows: https://github.com/QubesOS/qubes-manager/pull/15 Follows: https://github.com/QubesOS/qubes-attachment/pull/12 Reminded-by: https://groups.google.com/forum/#!topic/qubes-devel/Wlyt16_yKow
89 lines
3.0 KiB
Markdown
89 lines
3.0 KiB
Markdown
---
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layout: doc
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title: Copying from (and to) dom0
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permalink: /doc/copy-from-dom0/
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redirect_from:
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- /doc/copy-to-dom0/
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- /en/doc/copy-to-dom0/
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- /doc/CopyToDomZero/
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- /wiki/CopyToDomZero/
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---
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Copying from (and to) dom0
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==========================
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Copying **from** dom0
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---------------------
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To copy a file from dom0 to a VM (domU), simply use `qvm-copy-to-vm`:
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~~~
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qvm-copy-to-vm <dest-vm> <file>
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~~~
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The file will arrive in your destination VM in the `~/QubesIncoming/dom0/`
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directory.
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### Copying logs from Dom0 ###
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In order to easily copy/paste the contents of logs from dom0 to the inter-VM
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clipboard, you can simply:
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1. Right-click on the desired VM in the Qubes VM Manager.
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2. Click "Logs."
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3. Click on the desired log.
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4. Click "Copy to Qubes clipboard."
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You may now paste the log contents to any VM as you normally would (i.e.,
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Ctrl-Shift-V, then Ctrl-V).
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### Copy/paste from Dom0 ###
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For data other than logs, there are several options:
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1. Copy it as a file (see above)
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2. Since updated versions of 3.2 you can copy text to the dom0 clipboard
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(Ctrl-C as normal), then click "Copy Dom0 clipboard" in the Qubes menu:
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which is equivelant to Ctrl-Shift-C from a normal AppVM.
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Then you can use Ctrl-Shift-V and Ctrl-V to paste the copied text into an
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AppVM as normal.
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3. In older versions, write the data you wish to copy into
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`/var/run/qubes/qubes-clipboard.bin`, then write "dom0" to
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`/var/run/qubes/qubes-clipboard.bin.source`.
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Then use Ctrl-Shift-V to paste the data to the desired VM.
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Copying **to** Dom0
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-------------------
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There should normally be few reasons for the user to want to copy files from VMs
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to Dom0, as Dom0 only acts as a "thin trusted terminal", and no user
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applications run there. Copying untrusted files to Dom0 is not advised and may
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compromise the security of your Qubes system. Because of this, we do not provide
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a graphical user interface for it, unlike [copying files between
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VMs](/doc/copying-files/).
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One common use-case for this is if we want to use a desktop wallpaper in Dom0 we
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have located in one of our AppVMs (e.g. in the 'personal' AppVM where we got the
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wallpaper from our camera or downloaded it from the Internet). While it's a
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well-justified reason, imagine what would happen if the wallpaper (e.g. a JPEG
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file) was somehow malformed or malicious and attempted to exploit a hypothetical
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JPEG parser bug in Dom0 code (e.g. in the Dom0's Xorg/KDE code that parses the
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wallpaper and displays it).
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If you are determined to copy some files to Dom0 anyway, you can use the
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following method (run this command from Dom0's console):
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~~~
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qvm-run --pass-io <src-vm> 'cat /path/to/file_in_src_domain' > /path/to/file_name_in_dom0
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~~~
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You can use the same method to copy files from Dom0 to VMs (if, for some reason,
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you don't want to use `qvm-copy-to-vm`):
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~~~
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cat /path/to/file_in_dom0 | qvm-run --pass-io <dest-vm> 'cat > /path/to/file_name_in_appvm'
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~~~
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