Hello! I kinly ask you to help me with attach virtual machine disk via libguestfs. There are 3 compute node with Debian 10. Each node is used as hypervisor based on QEMU/KVM. Libvirt0:amd64 5.0.0-4+deb10u1 Libguestfs0:amd 1:1.40.2-2 I create Virtual Machines with disks on GlusterFS volume. ``` <disk type='network' device='disk'> <driver name='qemu' type='qcow2' cache='none' io='threads' discard= 'unmap'/> <source protocol='gluster' name='TEST/TEST1'> <host name='localhost' port='24007'/> </source> <target dev='vda' bus='virtio'/> <iotune> <read_bytes_sec>157286400</read_bytes_sec> <write_bytes_sec>104857600</write_bytes_sec> <read_iops_sec>40000</read_iops_sec> <write_iops_sec>25000</write_iops_sec> </iotune> <alias name='virtio-disk0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0' /> </disk> ``` I would like to work with guest image by libguestfs. Using guestfish (all rights!): ``` ><fs> add TEST/TEST1 protocol:gluster server:localhost:24007 ><fs> run ><fs> list-filesystems /dev/sda1: ext4 /dev/sda5: swap ``` Unfortunatly, the using libguestfs library (C#) results in error "No operating system found". You can find my code in attached files (Source.cpp).

How should I use libguetfs library to attach virtual michine disk correctly?

-- Надежда Мозолина

#include <iostream> #include <libvirt/libvirt.h> #include <libguestfs/guestfs.h> void main() { auto handle_ = guestfs_create(); if (!handle_) { std::cout << "Connection failed" << std::endl; return; } auto protocol = "gluster"; auto host = "localhost:24007"; auto name = "TESTPOOL/TESTVM1"; const char* server[2] = { host.c_str(), NULL }; auto res = guestfs_add_drive_opts(handle_, name, GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", GUESTFS_ADD_DRIVE_OPTS_READONLY, 1, GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, protocol, GUESTFS_ADD_DRIVE_OPTS_SERVER, server, -1); if (res < 0) { std::cout << "Add drive failed" << std::endl; return; } if (guestfs_launch(handle_) < 0) { std::cout << "Launch failed" << std::endl; return; } auto filesystems = guestfs_list_filesystems(handle_); if (!filesystems) { std::cout << "Failsystem failed" << std::endl; return; } if (!filesystems[0]) { std::cout << "No failsystem found" << std::endl; return; } auto i = 0; while (true) { if (!filesystems[i]) { std::cout << "No more fs" << std::endl; break; } std::cout << "filesystem: " << filesystems[i] << " -- " << filesystems[i + 1] << std::endl; i += 2; } auto roots_ = guestfs_inspect_os(handle_); if (!roots_) { std::cout << "Couldn't get root" << std::endl; return; } if (!roots_[0]) { std::cout << "No operating system found" << std::endl; return; } } _______________________________________________ Libguestfs mailing list Libguestfs(a)redhat.com https://listman.redhat.com/mailman/listinfo/libguestfs