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发表于 2018-12-8 17:56:58
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virsh start vm1368544020451:" k8 S; e# @8 C& C( ^4 _
& E' U" _& Z) x6 l6 c" }9 R error: Failed to start domain vm1368544020451# j! M5 p W2 e/ q/ ]' m
+ V& _6 Q0 q$ p+ U1 \error: internal error process exited while connecting to monitor: kvm: -drive file=/dev/sp1368155439693/v1368544020461,if=none,id=drive-virtio-disk0,format=qcow2: could not open disk image /dev/sp1368155439693/v1368544020461: Invalid argument
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8 c4 O/ o- C! X" c/ I镜像格式错误，用qemu-img info 检查镜像和xml配置文件中指定的type是否一致。 {2 @6 U$ n- Q) S3 P4 g+ s
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error: Failed to start domain vm0
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error: internal error process exited while connecting to monitor: Could not access KVM kernel module: No such file or directory
0 e, H4 t! @' `2 J+ c' F* `failed to initialize KVM: No such file or directory
& d; \* _3 p/ _ p1 C3 Y" kNo accelerator found!
( l% d% D6 A7 ~0 L% C/ o+ n上面的提示信息就是因为QEMU在初始化阶段因为无法找到kvm内核模块。
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" @1 |- s8 R1 s7 @sudo modprobe kvm #载入指定的模块2 ?+ L8 t( f: _% n' z
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重启电脑，进入bios界面，设置advance选项里面的virtualization标签为Enabled
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通过命令 lsmod | grep kvm #显示已载入的模块
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; T! u. v! c! c5 v4 T. J 虚拟机迁移：
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# virsh migrate --live 1 qemu+tcp://192.168.0.121 --p2p --tunnelled --unsafe
9 w+ e! J! E' r! ~# v8 Werror: operation failed: Failed to connect to remote libvirt URI qemu+tcp://192.168.0.121（在URI后面加上/system，‘system’相当于root用户的访问权限)
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5 j8 I/ ?* c# \9 d# b0 a6 X#virsh migrate --live 2 qemu+tcp://192.168.0.121/system --p2p --tunnelled H( y+ w% F/ Q2 I0 h
error: Unsafe migration: Migration may lead to data corruption if disks use cache != none（加上--unsafe参数）5 {& b# W8 t8 H: m
7 r% l o0 \( f! V. w! [2 y- z#virsh migrate --live 2 qemu+tcp://192.168.0.121/system --p2p --tunnelled --unsafe 6 o6 `- ]" { z; W
error: Timed out during operation: cannot acquire state change lock (启动虚拟机有时也会遇此错误）,需要重启libvirtd进程
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virsh：
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error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': Connection refused(libvirtd 进程没有启动，libvirtd是一个监听客户端请求的进程）1 F% |& j' ]# P$ v2 B1 b8 P
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$ virsh -c qemu:///system list$ l7 k; h2 V. D
error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': Permission denied
, [0 P7 b1 s# g7 V4 X6 [" cerror: failed to connect to the hypervisor
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' G2 L S5 R' @1 P( u( E（当前用户没有权限，修改/etc/libvirt/libvirtd.conf,unix_sock_rw_perms = 0777,使所有用户都有权限读写）( V9 S& g# A" u0 z4 c
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启动libvirtd进程出错：
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9 U& ? Y# [& B* u/ E) ` /usr/local/sbin/libvirtd -d -l --config /usr/local/etc/libvirt/libvirtd.conf （编译安装的启动方式）' I* |! Z* u$ ?
error：/usr/local/sbin/libvirtd: initialization failed
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& X/ s" [' d# x' {try to install libpcap-devel RPM and rebuild libvirt http://comments.gmane.org/gmane.comp.emulators.libvirt/58218
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apt-get install libpcap-dev
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上面的方法好像都没有效果，但是尝试了http://wiki.libvirt.org/page/The_daemon_cannot_be_started说的，把配置文件里的
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listen_tls = 0注释取消（更奇怪的问题，在我的客户端链接不对）5 K) b6 ]; `* @
7 B# b8 R; b# m% f3 j启动虚拟机：Connection reset by peer4 U+ c: q9 V2 }- C0 b' I& z
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virsh start vm13559917671869 `8 ]9 c* p4 ?$ w
error: Failed to start domain vm1355991767186
/ M; K" X* n$ c' B; R xerror: Unable to read from monitor: Connection reset by peer J/ G7 Y: @ O- q( }
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还有可能是这样提示：" R( y3 |! |$ R$ o! \8 {& N/ @/ K
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error: internal error process exited while connecting to monitor: Failed to allocate 16332619776 B: Cannot allocate memory
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这个问题可能是因为为VM分配的内存过大（甚至超过的物理主机的内存大小）
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; @9 @! }6 ?% B d- p/ ^; nUnable to load library 'virt': libvirt.so: cannot open shared object file: No such file or directory
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linux 环境：! j8 `# p* Z; a: M; E$ J% h: `: y8 [
ln -s /usr/lib/libvirt.so.0 /usr/lib/libvirt.so) ?2 _7 Q+ | Q( t, t
windows 环境
J& J2 C9 {( s4 c 将libvirt-0.dll改名为virt.dll# ~. u# x3 E/ u+ z& o
: f: P) }, Z: r' R( _6 k) n# virsh undefine vm1354695894990
2 Y: } {: y) u! t5 h) [error: Refusing to undefine while domain managed save image exists; g$ L0 O8 h, K% V( \8 q
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http://www.redhat.com/archives/l ... -July/msg01219.html6 B6 [2 {' G! a, N& s" E
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解决办法：virsh undefine $domain --managed-save$ }% s5 Y- Q! \( k) m
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在centos下面Define虚拟机时，确实没有/usr/bin/kvm，加软链接% v0 x9 k4 a# u- a' D
error: Failed to define domain from xxx.xml
' S: w. r) Q$ i8 k uerror: Cannot find QEMU binary /usr/bin/kvm: No such file or directory
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解决办法：ln -s /usr/libexec/qemu-kvm /usr/bin/kvm
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