Description of problem: lxd init执行报错Error: Failed to create storage pool "default": Failed to mount "/dev/loop3" on "/var/snap/lxd/common/lxd/storage-pools/default" using "btrfs": no such device 失败日志： # lxd init Would you like to use LXD clustering? (yes/no) [default=no]: Do you want to configure a new storage pool? (yes/no) [default=yes]: Name of the new storage pool [default=default]: Name of the storage backend to use (dir, lvm, btrfs, ceph) [default=btrfs]: Create a new BTRFS pool? (yes/no) [default=yes]: Would you like to use an existing empty block device (e.g. a disk or partition)? (yes/no) [default=no]: Size in GiB of the new loop device (1GiB minimum) [default=7GiB]: Would you like to connect to a MAAS server? (yes/no) [default=no]: Would you like to create a new local network bridge? (yes/no) [default=yes]: What should the new bridge be called? [default=lxdbr0]: What IPv4 address should be used? (CIDR subnet notation, “auto” or “none”) [default=auto]: What IPv6 address should be used? (CIDR subnet notation, “auto” or “none”) [default=auto]: Would you like the LXD server to be available over the network? (yes/no) [default=no]: Would you like stale cached images to be updated automatically? (yes/no) [default=yes]: Would you like a YAML "lxd init" preseed to be printed? (yes/no) [default=no]: Error: Failed to create storage pool "default": Failed to mount "/dev/loop3" on "/var/snap/lxd/common/lxd/storage-pools/default" using "btrfs": no such device Steps to Reproduce: yum install -y snapd systemctl enable --now snapd.socket ln -s /var/lib/snapd/snap /snap grubby --args="user_namespace.enable=1" --update-kernel="$(grubby --default-kernel)" grubby --args="namespace.unpriv_enable=1" --update-kernel="$(grubby --default-kernel)" echo "user.max_user_namespaces=3883" > /etc/sysctl.d/99-userns.conf reboot snap install --classic lxd snap install --classic lxd usermod -aG lxd root lxd init Actual results: 命令执行成功 Expected results: 命令执行报错 Additional info: # uname -r 5.10.134-13.1.an8.x86_64 # free -g total used free shared buff/cache available Mem: 3 0 2 0 0 3 Swap: 0 0 0 # lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 2 On-line CPU(s) list: 0,1 Thread(s) per core: 2 Core(s) per socket: 1 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel BIOS Vendor ID: Alibaba Cloud CPU family: 6 Model: 79 Model name: Intel(R) Xeon(R) CPU E5-2682 v4 @ 2.50GHz BIOS Model name: pc-i440fx-2.1 Stepping: 1 CPU MHz: 2500.050 BogoMIPS: 5000.10 Hypervisor vendor: KVM Virtualization type: full L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 40960K NUMA node0 CPU(s): 0,1 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveopt arat # cat /etc/os-release NAME="Anolis OS" VERSION="8.8" ID="anolis" ID_LIKE="rhel fedora centos" VERSION_ID="8.8" PLATFORM_ID="platform:an8" PRETTY_NAME="Anolis OS 8.8" ANSI_COLOR="0;31" HOME_URL="https://openanolis.cn/" cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/boot/vmlinuz-5.10.134-13.1.an8.x86_64 root=UUID=b10c6f53-88f7-440d-a004-02a236bd5602 ro crashkernel=0M-2G:0M,2G-8G:192M,8G-:256M cryptomgr.notests cgroup.memory=nokmem rcupdate.rcu_cpu_stall_timeout=300 vring_force_dma_api rhgb quiet biosdevname=0 net.ifnames=0 console=tty0 console=ttyS0,115200n8 noibrs nvme_core.io_timeout=4294967295 nvme_core.admin_timeout=4294967295 user_namespace.enable=1 namespace.unpriv_enable=1 # rpm -qa|grep snapd snapd-selinux-2.58.3-1.el8.noarch snapd-2.58.3-1.el8.x86_64
同一个测试环境安装4.19.91-26.6.an8.x86_64内核后，执行无报错