我有一个本地建造的qemu。我正在使用libvirt python API来定义XML。我得到错误：
libvirt：错误：内部错误：子进程（LC_ALL = C
路径= / usr / local / sbin：/ usr / local / bin：/ usr / sbin：/ usr / bin：/ sbin：/ bin
/ home / deepti / testqemu / bin / qemu-system-arm -help）意外退出
状态126：libvirt：错误：无法执行二进制
/ home / deepti / testqemu / bin / qemu-system-arm：权限被拒绝回溯
（最近一次通话最近）：文件“ testcustomQemu.py”，位于第70行
dom = conn.defineXML（xmlconfig）文件“ /home/deepti/.virtualenvs/testlibvirt/local/lib/python2.7/site-packages/libvirt.py”，
第3685行，在defineXML中
如果ret为None：raise libvirtError（'virDomainDefineXML（）failed'，conn = self）libvirt.libvirtError：内部错误：子进程
（LC_ALL = C
路径= / usr / local / sbin：/ usr / local / bin：/ usr / sbin：/ usr / bin：/ sbin：/ bin
/ home / deepti / testqemu / bin / qemu-system-arm -help）意外退出
状态126：libvirt：错误：无法执行二进制
/ home / deepti / testqemu / bin / qemu-system-arm：权限被拒绝/home/deepti/testqemu的所有权是root:root。将权限更改为+x也不起作用。
我想念什么。如何获取我的自定义qemu？
我的脚本和xml如下：
import libvirt
import sys
xmlconfig = """<domain type='qemu' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
<name>limom_instance</name>
<uuid>35615c44-b004-4b3f-9f42-da182b9662ef</uuid>
<memory unit='KiB'>786432</memory>
<currentMemory unit='KiB'>786432</currentMemory>
<vcpu>1</vcpu>
<os>
<type arch='armv7l' machine='limott'>hvm</type>
<kernel>/home/deepti/limom/FinalArtifacts/kerneldist1/zImage</kernel>
<dtb>/home/deepti/limom/FinalArtifacts/dtbdist1/emmc.dtb</dtb>
</os>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/home/deepti/testqemu/bin/qemu-system-arm</emulator>
<serial type='pty'>
<target port='0'/>
</serial>
<serial type='pty'>
<target port='1'/>
</serial>
<serial type='pty'>
<target port='2'/>
</serial>
<serial type='pty'>
<target port='3'/>
</serial>
<console type='pty'>
<target type='serial' port='0'/>
</console>
<memballoon model='none'/>
</devices>
<qemu:commandline>
<qemu:arg value='-sdl'/>
<qemu:arg value='-show-cursor'/>
<qemu:arg value='-nographic'/>
<qemu:arg value='-sd'/>
<qemu:arg value='/home/deepti/limom/FinalArtifacts/emmc.dat'/>
</qemu:commandline>
</domain>"""
conn = libvirt.open('qemu:///system')
if conn == None:
print('Failed to open connection to qemu:///system')
exit(1)
uri = conn.getURI()
print('Canonical URI: '+uri)
dom = conn.defineXML(xmlconfig)
if dom == None:
print('Failed to define a domain from an XML definition')
exit(1)
conn.close()
最佳答案
在Ubuntu 18上，我必须将自定义二进制文件和固件/ BIOS文件夹的路径添加到
/etc/apparmor.d/abstractions/libvirt-qemu