自定義 QCOW2 映像檔

virt-customize 主要是協助自定義 QCOW2 (QEMU Copy On Write) 映像檔的工具,由 libguestfs-tools 提供檔案。該格式經常用於 KVM、OpenStack、oVirt 等以 KVM 為基礎的虛擬化平台,該修改方式也為 Red Hat 官方所正式支援的方式,本文將提供下列常用自定義 qcow2 映像檔之指令使用方式

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Upgrade Intel Drivers on VMWare ESXi

Objective

Upgrade Intel NIC firmware (5.02->5.05) on VMWare ESXi for make sure the DirectPath I/O can work well

Environment

  • ESXi-6.0.0-20160302001
  • Intel XL710
    • Including vmnic{2-5}
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SDN Lab 7$ L2 Switching and Queue using OFDPA Switch and ovs-ofctl

(Working…)

Environment

Topology

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5
+--------+   Port+-----------------------+Port   +--------+
| | 1| AS5712-54X |2 | |
| Host A +-------+ ONL: 2.0.0 Deb8 +-------+ Host B |
| | | OFDPA: 3.0.3 EA2 | | |
+--------+ +-----------------------+ +--------+

L2 Switching

1
ovs-ofctl

Flow tables ID

Table Name Table ID
Ingress Port 0
Port DSCP Trust 5
Port PCP Trust 6
Tunnel DSCP Trust 7
Tunnel PCP Trust 8
Injected OAM 9
VLAN 10
VLAN 1 11
Ingress Maintenance Point 12
MPLS L2 Port 13
MPLS DSCP Trust 15
MPLS PCP Trust 16
L2 Policer 18
L2 Policer Actions 19
Termination MAC 20
L3 Type 21
MPLS 0 23
MPLS 1 24
MPLS 2 25
MPLS-TP Maintenance Point 26
MPLS L3 Type 27
MPLS Label Trust 28
MPLS Type 29
Unicast Routing 30
Multicast Routing 40
Bridging 50
Policy ACL 60
Color Based Actions 65
Egress VLAN 210
Egress VLAN 1 211
Egress Maintenance Point 226
Egress DSCP PCP Remark 230
Egress TPID 235

Setting

1
2


References

Windows 7 USB Download tool

現在製作 win7 USB 安裝碟變得十分容易, 只要下載 Windows 7 USB Download Tool 把 iso 放進去即可

但很多時候會遇到一個問題 We were unable to copy your files. Please check your USB device and the selected ISO file and try again. 此時就需要對 USB 做 Format 的動作

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