[CRIU] Fwd: Criu Restore Error

Christopher Covington cov at codeaurora.org
Wed Mar 25 10:33:16 PDT 2015


Hi Priyanka,

On 03/25/2015 01:16 PM, Priyanka Naik wrote:
> priyanka at priyanka-Lenovo-G510:~$ sudo mount -t 9p -o
> trans=virtio,version=9p2000.L hostshare /tmp/host_files
> mount: wrong fs type, bad option, bad superblock on hostshare,
>        missing codepage or helper program, or other error
>        (for several filesystems (e.g. nfs, cifs) you might
>        need a /sbin/mount.<type> helper program)
>        In some cases useful info is found in syslog - try
>        dmesg | tail  or so

Try it from inside the guest.

Chris

> On Wed, Mar 25, 2015 at 10:42 PM, Christopher Covington <cov at codeaurora.org
> <mailto:cov at codeaurora.org>> wrote:
> 
>     On 03/25/2015 01:00 PM, Priyanka Naik wrote:
>     > This command ran successfully. Now how to access files from guest??
> 
>     http://www.linux-kvm.org/page/9p_virtio
> 
>     mkdir /tmp/host_files
>     mount -t 9p -o trans=virtio,version=9p2000.L hostshare /tmp/host_files
> 
>     > Another thing while accessing those files does my guest need to be shutdown??
> 
>     I don't. It's based on a network filesystem.
> 
>     Chris
> 
>     > On Wed, Mar 25, 2015 at 10:15 PM, Christopher Covington <cov at codeaurora.org <mailto:cov at codeaurora.org>
>     > <mailto:cov at codeaurora.org <mailto:cov at codeaurora.org>>> wrote:
>     >
>     >     On 03/25/2015 12:25 PM, Priyanka Naik wrote:
>     >     >
>     >     > ---------- Forwarded message ----------
>     >     > From: *Priyanka Naik* <prnk.nk1 at gmail.com <mailto:prnk.nk1 at gmail.com> <mailto:prnk.nk1 at gmail.com
>     <mailto:prnk.nk1 at gmail.com>> <mailto:prnk.nk1 at gmail.com
>     <mailto:prnk.nk1 at gmail.com>
>     >     <mailto:prnk.nk1 at gmail.com <mailto:prnk.nk1 at gmail.com>>>>
>     >     > Date: Wed, Mar 25, 2015 at 9:54 PM
>     >     > Subject: Re: [CRIU] Criu Restore Error
>     >     > To: Christopher Covington <cov at codeaurora.org
>     <mailto:cov at codeaurora.org> <mailto:cov at codeaurora.org
>     <mailto:cov at codeaurora.org>> <mailto:cov at codeaurora.org
>     <mailto:cov at codeaurora.org>
>     >     <mailto:cov at codeaurora.org <mailto:cov at codeaurora.org>>>>
>     >     >
>     >     >
>     >     > I got these errors after running following command :
>     >     >
>     >     > root at priyanka-Lenovo-G510:/usr/bin# qemu-system-x86_64 -m 1024 -s -hda
>     >     > vdisk.img -kernel /usr/src/linux-3.17.6/arch/x86_64/boot/bzImage
>     -initrd
>     >     > /home/priyanka/tmp2/newinitrd.img -append "root=/dev/sda10" -name
>     myguest
>     >     > -device virtio-serial -chardev
>     socket,path=/tmp/foo,server,nowait,id=foo
>     >     > -device virtserialport,chardev=foo,name=org.fedoraproject.port.0
>     -fsdev
>     >     > local,security_model=passthrough,id=fsdev0,path=/tmp/share -device
>     >     > virtio-9p-pci,id=fs0,fsdev=fsdev0,mount_tag=hostshare
>     >     >
>     >     >
>     >     > qemu-system-x86_64: -device
>     >     > virtio-9p-pci,id=fs0,fsdev=fsdev0,mount_tag=hostshare: Virtio-9p
>     Failed to
>     >     > initialize fs-driver with id:fsdev0 and export path:/tmp/share
>     >
>     >     This fixed this error for me:
>     >
>     >     mkdir /tmp/share
>     >
>     >     Note that this is a host machine path.
>     >
>     >     Chris
> 
>     --
>     Qualcomm Innovation Center, Inc.
>     The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
>     a Linux Foundation Collaborative Project
> 
> 


-- 
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


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