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qemu: improve error if tun device is missing 

Added a more detailed error message when adding a tap devices fails and
the kernel is missing tun support.

Signed-off-by: Doug Goldstein <cardoe@gentoo.org>
This commit is contained in:
Doug Goldstein 2010-08-05 17:02:52 -06:00 committed by Eric Blake
parent 5f211d4bc5
commit bcc8b58be3
1 changed files with 7 additions and 0 deletions
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7
src/qemu/qemu_conf.c
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@ -1694,6 +1694,13 @@ qemudNetworkIfaceConnect(virConnectPtr conn,
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to add tap interface to bridge. "
"%s is not a bridge device"), brname);
} else if (err == ENOENT) {
/* When the tun drive is missing, give a better message. */
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to add tap interface to bridge. "
"Your kernel is missing the 'tun' module or "
"CONFIG_TUN, or you need to add the "
"/dev/net/tun device node."));
} else if (template_ifname) {
virReportSystemError(err,
_("Failed to add tap interface to bridge '%s'"),