CBSD管理QEMU仿真虚拟机

first QEMU VM

使用 cbsd qconstruct-tui创建

cbsd qconstruct-tuino such qemu-system-x86_64, please install qemu and re-run: cbsd initenv
Please follow https://www.bsdstore.ru/en/cbsd_qemu_quickstart.html instruction to setup FreeBSD host.

按照提示，需要qemu-system-x86_64 ，因此需要安装qemu并重新初始化

安装qemu

pkg install -y qemu

cbsd初始化

 cbsd initenv

cbsd initenv
-------[CBSD v.14.1.1]-------This is install/upgrade scripts for CBSD.Don't forget to backup.
-----------------------------
Do you want prepare or upgrade hier environment for CBSD now?
[yes(1) or no(0)]
1
>>> Installing or upgrading
[Stage 0: upgrading and migration data from 14.1.1 to 14.1.1]
pre-initenv-backup in progress ( can be disabled via ~cbsd/etc/initenv.conf; see ~cbsd/etc/defaults/initenv.conf ): initenv_backup_bases=3* pre-initenv-backup: [1/6] exprort/backup settings for: ub22* pre-initenv-backup: [2/6] exprort/backup settings for: ubjail1* pre-initenv-backup: [3/6] exprort/backup settings for: ubjail2* pre-initenv-backup: [4/6] exprort/backup settings for: riscv* pre-initenv-backup: [5/6] exprort/backup settings for: ub12* pre-initenv-backup: [6/6] exprort/backup settings for: windows2
[Stage 1: account & dir hier]* Check hier and permission...cmdboot: no such optional executable: xl, xen_feat disabled
[Stage 2: build tools]
[Stage 3: local settings]
[Stage 4: update default skel resolv.conf]
[Stage 5: refreshing inventory]
[Stage 6: authentication keys]
[Stage 7: nodes]
[Stage 8: modules]
[Stage 9: cleanup]* Remove obsolete files...
[Stage X: upgrading]
>>> Done

创建QEMU仿真

如果创建riscv仿真，还需要安装opensbi和u-boot-qemu-riscv64

pkg install -y opensbi u-boot-qemu-riscv64

开始cbsd引导

cbsd qconstruct-tui

选择和设置 'arch', 'vm_os_type', 'vm_os_profile' , 'jname' ，然后按'GO'即可.

设置Linux riscv仿真（没成功）

arch选riscv， vm_os_type选Linux

'vm_os_profile'里面若是空的，先clean，再update。但是update的时候报错make 128，大约是用户权限有问题。

按照提示，执行

git config --global --add safe.directory /usr/jails/etc

再update，就ok了。顶多有时候github会抽风。

update没有成功，所以cbsd设置qemu下的Linux riscv仿真没成功。

设置FreeBSD riscv仿真

arch选riscv， vm_os_type选FreeBSD

'vm_os_profile'里面刚开始只有一项vm-freebsd-FreeBSD-riscv64-14.1.conf，感觉还缺14.2

理论上应该能通过cbsd更新配置文件，但是可能github在抽风，于是手工到github下载所有的配置文件：

git clone https://github.com/cbsd/cbsd-vmprofiles

下载到~/github/cbsd-vmprofiles 目录，然后将该目录的cbsd-vmprofiles/vm-freebsd-FreeBSD-riscv64-14.2.conf文件cp到/usr/jails/etc/defaults 目录。

root@fb5:/usr/jails/etc/defaults # cp ~/github/cbsd-vmprofiles/vm-freebsd-FreeBSD-riscv64-14.2.conf .

这样'vm_os_profile'里面就可以选择vm-freebsd-FreeBSD-riscv64-14.2.conf了，创建虚拟机叫qf1 ，全部设置完成后，选go！

创建完成，cbsd qls看一下

cbsd qls
JNAME  JID  VM_RAM  VM_CURMEM  VM_CPUS  PCPU  VM_OS_TYPE  IP4_ADDR  STATUS  VNC
qf1    0    2048    0          4        0     freebsd     DHCP      Off     127.0.0.1:0

启动

cbds qstart qf1

结果下载iso很慢。

找到配置文件：/usr/jails/etc/vm-freebsd-FreeBSD-riscv64-14.2.conf

这是默认的配置文件，如果已经生成了虚拟机，那么会在虚拟机的目录里，比如：

虚拟机qf1的配置文件在：/usr/jails/vm/qf1/etc/vm-freebsd-FreeBSD-riscv64-14.2.conf

修改

cbsd_iso_mirrors="https://mirror2.convectix.com/iso/ https://mirror.convectix.com/iso/ https://clonos.ca.ircdriven.net/iso/ https://clonos.us.ircdriven.net/iso/ https://plug-mirror.rcac.purdue.edu/cbsd-iso/"

加入Index of /freebsd/releases/ISO-IMAGES/14.2/

https://mirrors.ustc.edu.cn/freebsd/

cbsd_iso_mirrors="https://mirror2.convectix.com/iso/ https://mirror.convectix.com/iso/ https://clonos.ca.ircdriven.net/iso/ https://clonos.us.ircdriven.net/iso/ https://plug-mirror.rcac.purdue.edu/cbsd-iso/ https://mirrors.ustc.edu.cn/freebsd/"

最终是加了中科大和南京大学，并把官方的https://download.freebsd.org/ftp/releases/VM-IMAGES/14.2-RELEASE/riscv64/Latest/那个去掉

cbsd_iso_mirrors="https://test.nju.edu.cn/freebsd/ https://mirrors.ustc.edu.cn/freebsd/ https://mirror2.convectix.com/iso/ https://mirror.convectix.com/iso/ https://clonos.ca.ircdriven.net/iso/ https://clonos.us.ircdriven.net/iso/ https://plug-mirror.rcac.purdue.edu/cbsd-iso/"

还是太慢，中科大的也慢，大约只有500k/s

找到问题了，原来是镜像普渡大学罗森高级计算中心的镜像站https://plug-mirror.rcac.purdue.edu/里只有14.1的镜像，没有14.2的镜像，导致要么到freebsd官网下载，贼慢。要么到普渡大学，找不到文件.......

删除了qf2，再重新创建