Issue

Description of problem： Hide warnings about btrfsvol:....failed when virt-v2v converts sles guests with RAID btrfs FS or encrypted btrfs FS from VMware Version-Release number of selected component (if applicable): virt-v2v-2.7.16-2.el10.x86_64 libguestfs-1.55.13-2.el10.x86_64 guestfs-tools-1.54.0-1.el10.x86_64 libguestfs-fssupport-10.0-1.el10.x86_64 kernel-6.12.0-84.el10.x86_64 nbdkit-1.42.2-4.el10.x86_64 libnbd-1.22.2-1.el10.x86_64 libvirt-libs-11.3.0-1.el10.x86_64 qemu-img-10.0.0-4.el10.x86_64 How reproducible: 100% Steps: Scenario 1:  1.1 Prepare a SLES15SP6 guest which is instaled on RAID with btrfs FS on VMware env # cat /etc/fstab  UUID=391a48d7-ccbb-4c6c-bbcc-db6a7d321533  / btrfs  defaults 0  0 UUID=391a48d7-ccbb-4c6c-bbcc-db6a7d321533  /var btrfs  subvol=/@/var 0  0 UUID=391a48d7-ccbb-4c6c-bbcc-db6a7d321533  /usr/local btrfs  subvol=/@/usr/local 0  0 UUID=391a48d7-ccbb-4c6c-bbcc-db6a7d321533  /tmp btrfs  subvol=/@/tmp 0  0 UUID=391a48d7-ccbb-4c6c-bbcc-db6a7d321533  /srv btrfs  subvol=/@/srv 0  0 UUID=391a48d7-ccbb-4c6c-bbcc-db6a7d321533  /root btrfs  subvol=/@/root 0  0 UUID=391a48d7-ccbb-4c6c-bbcc-db6a7d321533  /opt btrfs  subvol=/@/opt 0  0 UUID=391a48d7-ccbb-4c6c-bbcc-db6a7d321533  /home btrfs  subvol=/@/home 0  0 UUID=391a48d7-ccbb-4c6c-bbcc-db6a7d321533  /boot/grub2/x86_64-efi  btrfs  subvol=/@/boot/grub2/x86_64-efi  0  0 UUID=391a48d7-ccbb-4c6c-bbcc-db6a7d321533  /boot/grub2/i386-pc btrfs  subvol=/@/boot/grub2/i386-pc  0  0 UUID=ad4c9ee3-45d6-4946-8b2e-8b0421e76100  swap swap defaults 0  0 UUID=391a48d7-ccbb-4c6c-bbcc-db6a7d321533  /.snapshots btrfs  subvol=/@/.snapshots 0  0 UUID=EFA5-8582 /boot/efi vfat utf8 0  2 # lsblk NAME MAJ:MIN RM  SIZE RO TYPE  MOUNTPOINTS sr0 11:0 1 1024M  0 rom sda 254:0 0 16G  0 disk └─md0 9:0 0 32G  0 raid5 ├─md0p1 259:0 0 21.7G  0 part  /root │ /usr/local │ /var │ /boot/grub2/x86_64-efi │ /tmp │ /srv │ /home │ /opt │ /boot/grub2/i386-pc │ /.snapshots │ / └─md0p2 259:1 0 10G  0 part  [SWAP] sdb 254:16 0 16G  0 disk └─md0 9:0 0 32G  0 raid5 ├─md0p1 259:0 0 21.7G  0 part  /root │ /usr/local │ /var │ /boot/grub2/x86_64-efi │ /tmp │ /srv │ /home │ /opt │ /boot/grub2/i386-pc │ /.snapshots │ / └─md0p2 259:1 0 10G  0 part  [SWAP] sdc 254:32 0 16G  0 disk └─md0 9:0 0 32G  0 raid5 ├─md0p1 259:0 0 21.7G  0 part  /root │ /usr/local │ /var │ /boot/grub2/x86_64-efi │ /tmp │ /srv │ /home │ /opt │ /boot/grub2/i386-pc │ /.snapshots │ / └─md0p2 259:1 0 10G  0 part  [SWAP] sdd 254:48 0 16G  0 disk └─sdd1 254:49 0 16G  0 part  /boot/efi 1.2 Convert the guest from VMware by virt-v2v, there are many virt-v2v warning about btrfsvol:....failed during conversion # virt-v2v -ic vpx://non-admin%40vsphere.local@10.73.212.129/data/10.73.212.36/?no_verify=1  -it vddk -io vddk-libdir=/home/vddk8.0.3 -io vddk-thumbprint=CB:9F:B1:9D:33:49:6C:60:AD:3C:A5:16:77:91:5F:CD:1B:24:B1:43 -ip /home/passwd esx8.0-sles15sp6-x86_64-efi-with-raid-btrfs [ 0.0] Setting up the source: -i libvirt -ic vpx://non-admin%40vsphere.local@10.73.212.129/data/10.73.212.36/?no_verify=1 -it vddk esx8.0-sles15sp6-x86_64-efi-with-raid-btrfs [ 4.9] Opening the source [  20.4] Checking filesystem integrity before conversion [ 240.3] Detecting if this guest uses BIOS or UEFI to boot [ 240.9] Inspecting the source [ 246.7] Checking for sufficient free disk space in the guest [ 246.7] Converting SUSE Linux Enterprise Desktop 15 SP6 (sles15sp6) to run on KVM virt-v2v: warning: could not determine a way to update the configuration of  Grub2 virt-v2v: The QEMU Guest Agent will be installed for this guest at first  boot. virt-v2v: This guest has virtio drivers installed. [ 272.1] Setting a random seed [ 272.1] SELinux relabelling [ 272.8] Mapping filesystem data to avoid copying unused and blank areas virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/md0p1/@/.snapshots/2/snapshot failed.  Usually you can ignore  this message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/md0p1/@/.snapshots failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/md0p1/@/boot/grub2/i386-pc failed.  Usually you can ignore  this message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/md0p1/@/boot/grub2/x86_64-efi failed.  Usually you can ignore  this message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem btrfsvol:/dev/md0p1/@/home  failed.  Usually you can ignore this message.  To find out more read  "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem btrfsvol:/dev/md0p1/@/opt  failed.  Usually you can ignore this message.  To find out more read  "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem btrfsvol:/dev/md0p1/@/root  failed.  Usually you can ignore this message.  To find out more read  "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem btrfsvol:/dev/md0p1/@/srv  failed.  Usually you can ignore this message.  To find out more read  "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem btrfsvol:/dev/md0p1/@/tmp  failed.  Usually you can ignore this message.  To find out more read  "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/md0p1/@/usr/local failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem btrfsvol:/dev/md0p1/@/var  failed.  Usually you can ignore this message.  To find out more read  "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem btrfsvol:/dev/md0p1/@ failed. Usually you can ignore this message.  To find out more read "Trimming" in  virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem /dev/md0p1 failed.  Usually  you can ignore this message.  To find out more read "Trimming" in  virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported [ 275.1] Checking filesystem integrity after conversion [ 278.6] Closing the overlay [ 278.9] Assigning disks to buses [ 278.9] Checking if the guest needs BIOS or UEFI to boot virt-v2v: This guest requires UEFI on the target to boot. [ 278.9] Setting up the destination: -o libvirt [ 281.9] Copying disk 1/4 █ 100% [****************************************] [ 707.2] Copying disk 2/4 █ 100% [****************************************] [1159.4] Copying disk 3/4 █ 100% [****************************************] [1657.5] Copying disk 4/4 █ 100% [****************************************] [1658.7] Creating output metadata [1658.8] Finishing off Scenario  2  2.1 Prepare a  sles12sp5 guest with encrypted brtfs fliesystem on VMware # lsblk NAME MAJ:MIN RM  SIZE RO TYPE  MOUNTPOINT sda 8:0 0 16G  0 disk ├─sda1 8:1 0  399M  0 part  /boot └─sda2 8:2 0 15.6G  0 part └─cr_sda2 254:0 0 15.6G  0 crypt ├─system-root 254:1 0 14.2G  0 lvm / └─system-swap 254:2 0  1.4G  0 lvm [SWAP] sr0 11:0 1  3.8G  0 rom /run/media/root/SLE-12-SP5-Server-DVD-x86_640372 # cat /etc/fstab  /dev/system/swap swap swap defaults 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 / btrfs defaults 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /home btrfs subvol=@/home 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /opt btrfs subvol=@/opt 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /srv btrfs subvol=@/srv 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /tmp btrfs subvol=@/tmp 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /usr/local btrfs subvol=@/usr/local 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/cache btrfs subvol=@/var/cache 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/crash btrfs subvol=@/var/crash 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/lib/libvirt/images btrfs subvol=@/var/lib/libvirt/images 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/lib/machines btrfs subvol=@/var/lib/machines 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/lib/mailman btrfs subvol=@/var/lib/mailman 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/lib/mariadb btrfs subvol=@/var/lib/mariadb 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/lib/mysql btrfs subvol=@/var/lib/mysql 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/lib/named btrfs subvol=@/var/lib/named 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/lib/pgsql btrfs subvol=@/var/lib/pgsql 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/log btrfs subvol=@/var/log 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/opt btrfs subvol=@/var/opt 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/spool btrfs subvol=@/var/spool 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /var/tmp btrfs subvol=@/var/tmp 0 0 UUID=c2d664ae-cd57-427c-a434-13e00a8106d9 /.snapshots btrfs subvol=@/.snapshots 0 0 UUID=f4c500db-2386-4084-a896-b38c08126a4c /boot ext4 acl,user_xattr 1 2 2.2 Convert the guest from VMware to local libvirt by virt-v2v,  there are many virt-v2v warning about btrfsvol:....failed during conversion #  virt-v2v -ic vpx://non-admin%40vsphere.local@10.73.212.129/data/10.73.212.36/?no_verify=1  -it vddk -io vddk-libdir=/home/vddk8.0.3 -io vddk-thumbprint=CB:9F:B1:9D:33:49:6C:60:AD:3C:A5:16:77:91:5F:CD:1B:24:B1:43 -ip /home/passwd esx8.0-sles12sp5-x86_64-with-encrypted-btrfs --key all:key:redhat123 -o null [ 0.0] Setting up the source: -i libvirt -ic vpx://non-admin%40vsphere.local@10.73.212.129/data/10.73.212.36/?no_verify=1 -it vddk esx8.0-sles12sp5-x86_64-with-encrypted-btrfs [ 1.7] Opening the source [  19.5] Checking filesystem integrity before conversion [ 123.4] Detecting if this guest uses BIOS or UEFI to boot [ 123.6] Inspecting the source [ 134.9] Checking for sufficient free disk space in the guest [ 134.9] Converting SUSE Linux Enterprise Server 12 SP5 (sles12sp5) to run on KVM virt-v2v: warning: ignoring kernel /vmlinuz-4.12.14-120-default in  bootloader, as it does not exist. virt-v2v: The QEMU Guest Agent will be installed for this guest at first  boot. virt-v2v: This guest has virtio drivers installed. [ 185.8] Setting a random seed [ 185.8] SELinux relabelling [ 186.2] Mapping filesystem data to avoid copying unused and blank areas virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/.snapshots/3/snapshot failed.  Usually you can  ignore this message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/.snapshots/2/snapshot failed.  Usually you can  ignore this message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/tmp failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/spool failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/opt failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/log failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/lib/pgsql failed.  Usually you can ignore  this message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/lib/named failed.  Usually you can ignore  this message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/lib/mysql failed.  Usually you can ignore  this message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/lib/mariadb failed.  Usually you can ignore  this message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/lib/mailman failed.  Usually you can ignore  this message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/lib/machines failed.  Usually you can  ignore this message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/lib/libvirt/images failed.  Usually you can  ignore this message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/crash failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/var/cache failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/usr/local failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/tmp failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/srv failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/opt failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/home failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem  btrfsvol:/dev/system/root/@/.snapshots failed.  Usually you can ignore this  message.  To find out more read "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem btrfsvol:/dev/system/root/@  failed.  Usually you can ignore this message.  To find out more read  "Trimming" in virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported virt-v2v: warning: fstrim on guest filesystem /dev/system/root failed. Usually you can ignore this message.  To find out more read "Trimming" in  virt-v2v(1). Original message: fstrim: fstrim: /sysroot/: the discard operation is not  supported [ 188.7] Checking filesystem integrity after conversion [ 193.6] Closing the overlay [ 193.9] Assigning disks to buses [ 193.9] Checking if the guest needs BIOS or UEFI to boot [ 193.9] Setting up the destination: -o null [ 194.9] Copying disk 1/1 █ 100% [****************************************] [ 504.8] Creating output metadata [ 504.8] Finishing off Actual result: As above description Expect result: Fix the bug Additional info There is no warning about btrfsvol:....failed when virt-v2v converts sles guests with btrfs FS #  virt-v2v -ic vpx://non-admin%40vsphere.local@10.73.212.129/data/10.73.212.36/?no_verify=1  -it vddk -io vddk-libdir=/home/vddk8.0.3 -io vddk-thumbprint=CB:9F:B1:9D:33:49:6C:60:AD:3C:A5:16:77:91:5F:CD:1B:24:B1:43 -ip /home/passwd esx8.0-sles15sp6-x86_64-efi-with-btrfs -o null [ 0.0] Setting up the source: -i libvirt -ic vpx://non-admin%40vsphere.local@10.73.212.129/data/10.73.212.36/?no_verify=1 -it vddk esx8.0-sles15sp6-x86_64-efi-with-btrfs [ 1.7] Opening the source [  16.8] Checking filesystem integrity before conversion [ 105.3] Detecting if this guest uses BIOS or UEFI to boot [ 105.9] Inspecting the source [ 111.2] Checking for sufficient free disk space in the guest [ 111.2] Converting SUSE Linux Enterprise Server 15 SP6 (sles15sp6) to run on KVM virt-v2v: warning: could not determine a way to update the configuration of  Grub2 virt-v2v: The QEMU Guest Agent will be installed for this guest at first  boot. virt-v2v: This guest has virtio drivers installed. [ 136.9] Setting a random seed [ 136.9] SELinux relabelling [ 137.3] Mapping filesystem data to avoid copying unused and blank areas [ 146.1] Checking filesystem integrity after conversion [ 148.2] Closing the overlay [ 148.6] Assigning disks to buses [ 148.6] Checking if the guest needs BIOS or UEFI to boot virt-v2v: This guest requires UEFI on the target to boot. [ 148.6] Setting up the destination: -o null [ 149.6] Copying disk 1/1 █ 100% [****************************************] [ 183.9] Creating output metadata [ 183.9] Finishing off

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