kiranchavala commented on issue #12090: URL: https://github.com/apache/cloudstack/issues/12090#issuecomment-3685607332
Thanks @gw769 cc @DaanHoogland @vishesh92 Able to reproduce the issue even on a KVM amd64 host 1. Enable UEFI mode on the kvm host 2. Create a vm with 5 data disks with dataDiskController as SCSI and rootDiskController as osdefault <img width="1622" height="474" alt="Image" src="https://github.com/user-attachments/assets/04bdff9d-ecfe-4bb6-8c06-c2d096ddf82a"; /> <img width="1623" height="541" alt="Image" src="https://github.com/user-attachments/assets/88af4277-3402-42fd-8ebf-96df9a1d36d2"; /> 3. Start the vm Check the dumpxml on the kvm host ``` <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/mnt/69c0c442-1b98-3f15-a62d-b371ae1ae4f6/8d2f700c-1483-493b-a4c7-522b3554aaae' index='6'/> <backingStore/> <target dev='sdb' bus='scsi'/> <serial>8d2f700c1483493ba4c7</serial> <alias name='scsi0-0-1'/> <address type='drive' controller='0' bus='0' target='0' unit='1'/> </disk> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/mnt/69c0c442-1b98-3f15-a62d-b371ae1ae4f6/97f81648-7abc-4a22-800c-1675b1ef3eec' index='5'/> <backingStore/> <target dev='sdc' bus='scsi'/> <serial>97f816487abc4a22800c</serial> <alias name='scsi0-0-2'/> <address type='drive' controller='0' bus='0' target='0' unit='2'/> </disk> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/mnt/69c0c442-1b98-3f15-a62d-b371ae1ae4f6/dd061ab2-ab6d-4d2a-93f4-f368e9c2c62e' index='4'/> <backingStore/> <target dev='sde' bus='scsi'/> <serial>dd061ab2ab6d4d2a93f4</serial> <alias name='scsi0-0-4'/> <address type='drive' controller='0' bus='0' target='0' unit='4'/> </disk> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/mnt/69c0c442-1b98-3f15-a62d-b371ae1ae4f6/0d4a3931-95c2-443a-86a6-64d1087febb7' index='3'/> <backingStore/> <target dev='sdf' bus='scsi'/> <serial>0d4a393195c2443a86a6</serial> <alias name='scsi0-0-5'/> <address type='drive' controller='0' bus='0' target='0' unit='5'/> </disk> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/mnt/69c0c442-1b98-3f15-a62d-b371ae1ae4f6/6f5b952e-ed5b-49dc-9057-f5ba7064e4fe' index='2'/> <backingStore/> <target dev='sdg' bus='scsi'/> <serial>6f5b952eed5b49dc9057</serial> <alias name='scsi0-0-6'/> <address type='drive' controller='0' bus='0' target='0' unit='6'/> </disk> ``` 4. Add a sixth data disk and check the dumpxml The sixth disk get the bus driver as "virtio" ``` <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/mnt/69c0c442-1b98-3f15-a62d-b371ae1ae4f6/aa2e55b0-4637-47b8-a0aa-97f0eab903ce' index='9'/> <backingStore/> <target dev='vdh' bus='virtio'/> <serial>aa2e55b0463747b8a0aa</serial> <alias name='virtio-disk7'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/> </disk> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/mnt/69c0c442-1b98-3f15-a62d-b371ae1ae4f6/8d2f700c-1483-493b-a4c7-522b3554aaae' index='6'/> <backingStore/> <target dev='sdb' bus='scsi'/> <serial>8d2f700c1483493ba4c7</serial> <alias name='scsi0-0-1'/> <address type='drive' controller='0' bus='0' target='0' unit='1'/> </disk> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/mnt/69c0c442-1b98-3f15-a62d-b371ae1ae4f6/97f81648-7abc-4a22-800c-1675b1ef3eec' index='5'/> <backingStore/> <target dev='sdc' bus='scsi'/> <serial>97f816487abc4a22800c</serial> <alias name='scsi0-0-2'/> <address type='drive' controller='0' bus='0' target='0' unit='2'/> </disk> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/mnt/69c0c442-1b98-3f15-a62d-b371ae1ae4f6/dd061ab2-ab6d-4d2a-93f4-f368e9c2c62e' index='4'/> <backingStore/> <target dev='sde' bus='scsi'/> <serial>dd061ab2ab6d4d2a93f4</serial> <alias name='scsi0-0-4'/> <address type='drive' controller='0' bus='0' target='0' unit='4'/> </disk> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/mnt/69c0c442-1b98-3f15-a62d-b371ae1ae4f6/0d4a3931-95c2-443a-86a6-64d1087febb7' index='3'/> <backingStore/> <target dev='sdf' bus='scsi'/> <serial>0d4a393195c2443a86a6</serial> <alias name='scsi0-0-5'/> <address type='drive' controller='0' bus='0' target='0' unit='5'/> </disk> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/mnt/69c0c442-1b98-3f15-a62d-b371ae1ae4f6/6f5b952e-ed5b-49dc-9057-f5ba7064e4fe' index='2'/> <backingStore/> <target dev='sdg' bus='scsi'/> <serial>6f5b952eed5b49dc9057</serial> <alias name='scsi0-0-6'/> <address type='drive' controller='0' bus='0' target='0' unit='6'/> </disk> <disk type='file' device='cdrom'> <driver name='qemu'/> <target dev='hdc' bus='ide'/> <readonly/> <alias name='ide0-1-0'/> <address type='drive' controller='0' bus='1' target='0' unit='0'/> </disk> ``` -- This is an automated message from the Apache Git Service. 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