GNU bug report logs - #32075
netcat with '-U' option for connection virt-manager to libvirt over SSH

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Package: guix; Reported by: Oleg Pykhalov <go.wigust@HIDDEN>; dated Fri, 6 Jul 2018 23:34:02 UTC; Maintainer for guix is bug-guix@HIDDEN.

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From: ludo@HIDDEN (Ludovic =?utf-8?Q?Court=C3=A8s?=)
To: Oleg Pykhalov <go.wigust@HIDDEN>
Subject: Re: bug#32075: netcat with '-U' option for connection virt-manager to
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Hi Oleg,

Oleg Pykhalov <go.wigust@HIDDEN> skribis:

> libvirtError: End of file while reading data: nc: invalid option -- 'U'
> Try `nc --help' for more information.: Input/output error

There are several implementation of Netcat, and presumably libvirt
expects a different one.

Could you check which implementation you have on other distros?

TIA,
Ludo=E2=80=99.




Information forwarded to bug-guix@HIDDEN:
bug#32075; Package guix. Full text available.

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From: Oleg Pykhalov <go.wigust@HIDDEN>
To: bug-guix@HIDDEN
Subject: netcat with '-U' option for connection virt-manager to libvirt over
 SSH
Date: Sat, 07 Jul 2018 02:31:35 +0300
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--=-=-=
Content-Type: text/plain; charset=utf-8
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Hello Guix,

I try to use virt-manager for connection over SSH from Linux Mint to
GuixSD running libvirt.

Seems we need to package netcat which includes =E2=80=98-U=E2=80=99 option:
=2D-8<---------------cut here---------------start------------->8--- Unable
Unable to connect to libvirt qemu+ssh://natsu@HIDDEN/system.

The remote host requires a version of netcat/nc which supports the -U optio=
n.

Libvirt URI is: qemu+ssh://natsu@HIDDEN/system

Traceback (most recent call last):
  File "/gnu/store/pakiz00asgm6cq5l4xwbwzksd0z576iq-virt-manager-1.5.1/shar=
e/virt-manager/virtManager/connection.py", line 1036, in _do_open
    self._backend.open(self._do_creds_password)
  File "/gnu/store/pakiz00asgm6cq5l4xwbwzksd0z576iq-virt-manager-1.5.1/shar=
e/virt-manager/virtinst/connection.py", line 144, in open
    open_flags)
  File "/gnu/store/xdyrp8fbcgk2cnyck4yda2wl1vql1m82-python2-libvirt-4.1.0/l=
ib/python2.7/site-packages/libvirt.py", line 105, in openAuth
    if ret is None:raise libvirtError('virConnectOpenAuth() failed')
libvirtError: End of file while reading data: nc: invalid option -- 'U'
Try `nc --help' for more information.: Input/output error
=2D-8<---------------cut here---------------end--------------->8---

Thanks,
Oleg.

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Acknowledgement sent to Oleg Pykhalov <go.wigust@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-guix@HIDDEN. Full text available.
Report forwarded to bug-guix@HIDDEN:
bug#32075; Package guix. Full text available.
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