ubuntu 经常出现创建kvm虚机时报错ERROR Cannot get interface MTU on 'br0': No such device

admin

root@compute01:/usr/src# virt-install --name=Windows2019_x86  --ram 8192 --vcpus=4 --disk path=/usr/src/Windows2019-x86.qcow2,format=qcow2,size=15,bus=virtio --accelerate --cdrom /usr/src/cn_windows_server_2019_x64_dvd_2d80e042.iso --vnc --vncport=5906 --vnclisten=0.0.0.0 --network bridge=br0,model=virtio --noautoconsole
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2 ?& P+ x* |. a$ n3 q/ qStarting install...
/ X, B' m! E, R  d0 v- s. hERROR    Cannot get interface MTU on 'br0': No such device
2 r3 |% A2 Z! V6 z! V  MDomain installation does not appear to have been successful.
* f' B0 Y/ Z$ D- {If it was, you can restart your domain by running:
  virsh --connect qemu:///system start Windows2019_x86
otherwise, please restart your installation.

创建失败：有问题，检查网卡：

4 u) w3 E+ g5 {- D$ n0 _% Froot@compute01:/usr/src# ip addr
; t, C, j) q# Y! E% K; E1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
' E. x" }/ j) V2 ]& H% D    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
( ?: j9 p( B6 ]6 V9 P7 C% D    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
9 ?# x  n% s4 C7 c) b9 @    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
5 X9 W4 n8 B, r9 a# d( s1 o, Q2: enp8s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:e0:4c:68:10:89 brd ff:ff:ff:ff:ff:ff
3: enp9s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
4 m8 @2 g6 p3 W6 s/ X& Y+ Q! C    link/ether d8:50:e6:4a:41:b2 brd ff:ff:ff:ff:ff:ff
    inet 198.192.168.66/24 brd 198.192.168.255 scope global enp9s0
7 Z) E0 `& {; f4 E+ }. }, k       valid_lft forever preferred_lft forever
    inet6 fe80::da50:e6ff:fe4a:41b2/64 scope link
       valid_lft forever preferred_lft forever
3 n# z! |2 U! K4 J4: enp2s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 04:25:c5:2a:57:13 brd ff:ff:ff:ff:ff:ff
1 _) `7 w3 x5 @; u+ t, W* c    inet 192.168.8.66/24 brd 192.168.8.255 scope global enp2s0f0
       valid_lft forever preferred_lft forever
8 N2 s0 P5 d  h' q8 l    inet6 fe80::625:c5ff:fe2a:5713/64 scope link
       valid_lft forever preferred_lft forever
5: enp2s0f1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether 04:25:c5:2a:57:14 brd ff:ff:ff:ff:ff:ff
11: vnet2: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
2 t: Z4 v. x6 x2 N: Q    link/ether fe:54:00:90:65:d2 brd ff:ff:ff:ff:ff:ff
: }; ?: r2 n3 @- O0 s( Q+ N/ d' r  C
& E; A* B- V3 z. i5 R; F重新配置网络：
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root@compute01:/usr/src# netplan apply
2 [* Z) I: \! q
8 f+ K/ j& K, K4 ]( F** (generate:6407): WARNING **: 13:00:50.842: `gateway4` has been deprecated, use default routes instead.
' y% w5 \: P: u3 u4 Y! h8 |. m; Z6 qSee the 'Default routes' section of the documentation for more details.
, i2 h7 d0 G4 J, a9 s$ i" U  ?
5 F- S  A1 q9 E1 m/ r** (process:6405): WARNING **: 13:00:51.287: `gateway4` has been deprecated, use default routes instead.
- c* `# B" H) j" c6 l; }) G7 @See the 'Default routes' section of the documentation for more details.
8 n1 g  R" d0 w8 d' `
** (process:6405): WARNING **: 13:00:51.298: `gateway4` has been deprecated, use default routes instead.
! V; Z) D* c9 WSee the 'Default routes' section of the documentation for more details.
+ e, g$ a' q% s
** (process:6405): WARNING **: 13:00:51.684: `gateway4` has been deprecated, use default routes instead.
1 u' S' @* B( V: L9 _See the 'Default routes' section of the documentation for more details.

** (process:6405): WARNING **: 13:00:51.685: `gateway4` has been deprecated, use default routes instead.
/ b8 [0 y) G/ g8 h: m. J9 ?See the 'Default routes' section of the documentation for more details.
4 W' j5 N' V% [: R/ K6 X
+ t( Y/ F, ^; u9 Z- n& [6 V( m$ t
. a) {2 P4 m1 ?% z% g% u再重试，问题解决。
% O6 u7 k6 o6 O7 e2 |$ `+ ]root@compute01:/usr/src# virt-install --name=Windows2019_x86  --ram 8192 --vcpus=4 --disk path=/usr/src/Windows2019-x86.qcow2,format=qcow2,size=15,bus=virtio --accelerate --cdrom /usr/src/cn_windows_server_2019_x64_dvd_2d80e042.iso --vnc --vncport=5906 --vnclisten=0.0.0.0 --network bridge=br0,model=virtio --noautoconsole
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( u( G, F" ?6 q- W8 y9 kStarting install...
) m5 n# y, B- i" Q1 f* b$ E+ s+ ZCreating domain...                                                                                                                                         |    0 B  00:00:00     

2 k( S' G# h( s  q, K! _Domain is still running. Installation may be in progress.
You can reconnect to the console to complete the installation process.
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admin

ubuntu server 版本经常出现这样的问题。
0 P0 `8 M0 \6 _1 q$ Z$ N6 P
% R; I8 K, N8 N/ ]- m4 r# lsb_release -a
No LSB modules are available.
Distributor ID:        Ubuntu
Description:        Ubuntu 22.04.2 LTS
6 Y( H: l' `: mRelease:        22.04
( c- a: [+ S( g+ s+ V4 ]" N4 {Codename:        jammy

) x. V" u4 e: J, ?3 y6 h. c0 i不太成熟的版本。