LFS虚拟机

最初学习实践是在虚拟机中完成，虚拟机构建采用了如下步骤:

• Gentoo 虚拟化

  • Gentoo上运行ZFS(xcloud) 底层存储采用了 ZFS 方便运行大量虚拟机

  • libvirt ZFS存储池 ZFS存储引入 Libvirt虚拟机管理器 中作为存储后端驱动

• 虚拟机使用了 Fedora 当前最新(Fedora 40) Xfce spin发行版

创建ZFS存储卷上的Fedora 40虚拟机

# virsh vol-create-as images_zfs fedora-sway-40 10G

virt-install \
     --network bridge:virbr0 \
     --name fedora-sway-40 \
     --ram=4096 \
     --vcpus=2 \
     --os-variant=fedora40 \
     --boot uefi --cpu host-passthrough \
     --disk vol=images_zfs/fedora-sway-40,sparse=false,format=raw,bus=virtio,cache=none,io=native \
     --graphics spice \
     --cdrom=/var/lib/libvirt/images/Fedora-Xfce-Live-x86_64-40-1.14.iso
     #--cdrom=/var/lib/libvirt/images/Fedora-Sway-Live-x86_64-40-1.14.iso

• 通过 virt-manager 连接虚拟机spice图形界面，快速完成操作系统安装

• 通过 virt-manager 配置虚拟机硬件，将后续用于LFS的目标虚拟磁盘添加为第2块硬盘(以下为 fdisk -l 输出信息，可以看到有一个 30GB 的 /vdb 等待着我们:

fdisk -l 输出信息

Disk /dev/vda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 67378502-7F86-4BB3-A58C-D93305FDEC3C

Device       Start      End  Sectors  Size Type
/dev/vda1     2048  1230847  1228800  600M EFI System
/dev/vda2  1230848  3327999  2097152    1G Linux extended boot
/dev/vda3  3328000 20969471 17641472  8.4G Linux filesystem


Disk /dev/vdb: 30 GiB, 32212254720 bytes, 62914560 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/zram0: 3.8 GiB, 4080009216 bytes, 996096 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes