1.ubantu ios镜像地址
https://cn.ubuntu.com/download/server/step1
2.unraid 配置
勾去创建后启动虚拟机 -> 点击创建 -> 重新打开编辑页面,确保 cache='writeback' 而不是 cache='directsync'
3.ubantu 配置
Try or Install Ubuntu Server
Ubuntu Server
done
修改这一行 -> 点击 ->Edit -> Size -> 改成左侧最大的数值 -> Save -> Done
Install OpenSSH server
Done
Reboot Now
4.在到login 界面之后先不要进入，从新到 unraid配置 中的xml里
可以按照这个配置修改
内存锁定：
<locked/>已添加，防止内存交换导致的系统瞬间卡顿。CPU 指令集：
<feature policy='require' name='topoext'/>已添加，多核并发处理更高效。磁盘缓存：
cache='writeback'和discard='unmap'已就绪，写入性能和空间回收都达到最佳。清理光驱：彻底删除
cdrom代码块，开机不会再报错。
<?xml version='1.0' encoding='UTF-8'?>
<domain type='kvm'>
<name>robot-ubuntu24.04.3</name>
<uuid>32fa1c89-a9e0-6b23-d380-8cd4f5fd7ea4</uuid>
<metadata>
<vmtemplate xmlns="unraid" name="Ubuntu" icon="ubuntu.png" os="ubuntu" webui="" storage="default"/>
</metadata>
<memory unit='KiB'>5242880</memory>
<currentMemory unit='KiB'>5242880</currentMemory>
<memoryBacking>
<nosharepages/>
<locked/>
</memoryBacking>
<vcpu placement='static'>4</vcpu>
<cputune>
<vcpupin vcpu='0' cpuset='8'/>
<vcpupin vcpu='1' cpuset='9'/>
<vcpupin vcpu='2' cpuset='10'/>
<vcpupin vcpu='3' cpuset='11'/>
</cputune>
<os>
<type arch='x86_64' machine='pc-q35-9.1'>hvm</type>
<loader readonly='yes' type='pflash'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>
<nvram>/etc/libvirt/qemu/nvram/32fa1c89-a9e0-6b23-d380-8cd4f5fd7ea4_VARS-pure-efi.fd</nvram>
</os>
<features>
<acpi/>
<apic/>
</features>
<cpu mode='host-passthrough' check='none' migratable='on'>
<topology sockets='1' dies='1' clusters='1' cores='2' threads='2'/>
<cache mode='passthrough'/>
<feature policy='require' name='topoext'/>
</cpu>
<clock offset='utc'>
<timer name='hpet' present='no'/>
<timer name='hypervclock' present='no'/>
<timer name='pit' tickpolicy='delay'/>
<timer name='rtc' tickpolicy='catchup'/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/local/sbin/qemu</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='raw' cache='writeback' discard='unmap'/>
<source file='/mnt/user/domains/robot-ubuntu24.04.3/vdisk1.img'/>
<target dev='hdc' bus='virtio'/>
<serial>vdisk1</serial>
<boot order='1'/>
<address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
</disk>
<controller type='usb' index='0' model='ich9-ehci1'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x7'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci1'>
<master startport='0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0' multifunction='on'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci2'>
<master startport='2'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x1'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci3'>
<master startport='4'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x2'/>
</controller>
<controller type='sata' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pcie-root'/>
<controller type='pci' index='1' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='1' port='0x8'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0' multifunction='on'/>
</controller>
<controller type='pci' index='2' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='2' port='0x9'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
</controller>
<controller type='pci' index='3' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='3' port='0xa'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
</controller>
<controller type='pci' index='4' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='4' port='0xb'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x3'/>
</controller>
<controller type='pci' index='5' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='5' port='0xc'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x4'/>
</controller>
<controller type='virtio-serial' index='0'>
<address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:6a:08:f4'/>
<source bridge='br0'/>
<model type='virtio-net'/>
<address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</interface>
<serial type='pty'>
<target type='isa-serial' port='0'>
<model name='isa-serial'/>
</target>
</serial>
<console type='pty'>
<target type='serial' port='0'/>
</console>
<channel type='unix'>
<target type='virtio' name='org.qemu.guest_agent.0'/>
<address type='virtio-serial' controller='0' bus='0' port='1'/>
</channel>
<input type='tablet' bus='usb'>
<address type='usb' bus='0' port='1'/>
</input>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes' websocket='-1' listen='0.0.0.0' sharePolicy='ignore'>
<listen type='address' address='0.0.0.0'/>
</graphics>
<audio id='1' type='none'/>
<video>
<model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
</video>
<watchdog model='itco' action='reset'/>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
</memballoon>
</devices>
</domain>
5.进入系统 并执行优化
# 优化磁盘挂载记录
sudo sed -i 's/errors=remount-ro/errors=remount-ro,noatime/g' /etc/fstab
sudo mount -o remount /
# 安装并启用熵池加速工具
sudo apt update && sudo apt install -y haveged
sudo systemctl enable --now haveged
# 设置针对 VirtIO 磁盘的调度模式
echo 'none' | sudo tee /sys/block/vda/queue/schedulertip
1.如果出现了，直接回车即可
