9P (or the Plan 9 Filesystem Protocol) is a network protocol developed for the Plan 9 from Bell Labs distributed operating system as the means of connecting the components of a Plan 9 system. 9P was revised for the 4th edition of Plan 9 under the name 9P2000 that contained various fundamental ...

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KVM guest cannot write to 9p share owned by non-root

I am aiming to set up full write access to a 9p share for a KVM guest. Both host and guest have the same users/groups with the same IDs. Both host and guest should be able to write to the share using ...
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596 views

How to efficiently share host's folder with KVM guests?

I am configuring the service which stores plenty of files uploaded by nginx in /srv/storage dir on host system. These files are processed by worker KVM guests which may create new files or assign ...
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Filesystem passthrough functionality in Centos 6.2?

I have a CentOS 6.3 machine currently running 2 virtualized CentOS 6.2 machines via KVM/QEMU/Libvirt. I'm trying to setup filesystem passthrough between the guests and the host. However the option is ...
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qemu/virt-manager no permisson on shared folder

I have a strange problem. Iam trying to create a shared folder via the add-hardware->filesystem option. For Type and Modus i choose Passtrought and for Driver Path. The Source Path is /free and target ...
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Debian Squeeze Linux 9p virtfs guest mount failure

First some background information on the server: Host OS: Debian Linux Squeeze + qemu-kvm version 1.0+dfsg-8~bpo60+1 Guest OS: Debian Linux Squeeze I use qemu-kvm via libvirt. I have set up 9p ...
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Read/write access for passthrough (9p) filesystems with libvirt/qemu?

I have recently started experimenting with the support for passthrough filesystems in recent versions of KVM/QEMU/libvirt. Making the filesystems available for read access has "just worked", but I'm ...
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443 views

9p filesystem interacting badly with KVM savevm snapshot

I have a 9p mount inside a VM. I take a snapshot of the VM state with savevm <snapshot>, stop the VM, then restart it with that snapshot (with kvm -loadvm <snapshot>). When I try to ...