标签：direct pre error: ack var 执行 could not block creat
安装
yum install libguestfs-tools
如果出现如下错误
? image virt-df centos7.qcow2 virt-df: symbol lookup error: /lib64/libguestfs.so.0: undefined symbol: json_string_length
执行
yum update
? image virt-df centos7.qcow2 libguestfs: error: could not create appliance through libvirt. Try running qemu directly without libvirt using this environment variable: export LIBGUESTFS_BACKEND=direct Original error from libvirt: Cannot access backing file ‘/root/image/centos7.qcow2‘ of storage file ‘/tmp/libguestfsLF6zD8/overlay1.qcow2‘ (as uid:107, gid:107): Permission denied [code=38 int1=13]
? image export LIBGUESTFS_BACKEND=direct ? image virt-df centos7.qcow2 Filesystem 1K-blocks Used Available Use% centos7.qcow2:/dev/sda1 508588 83328 425260 17% centos7.qcow2:/dev/centos/root 8869888 827392 8042496 10%
标签：direct pre error: ack var 执行 could not block creat
原文地址：https://www.cnblogs.com/longchang/p/11558785.html
