Iscsi
iPXE 到 iSCSI 目標 - 缺少參數和命名混亂
我有一個pyTarget iSCSI 目標。我可以使用 iPXE 連接到目標並安裝 Ubuntu。但是，安裝後，我無法啟動到映像。
pyTarget 配置.xml：
<root> <!-- configure target console --> <console ip="" port="3260" debug_level="6" /> <!-- configure the first target --> <target name="iscsi" ip="192.168.1.10" port="3260" portal="1"> <!-- the first iqn of this target configured for disk array --> <host name="iqn.2006-11.1" target_pwd="" initiator_pwd=""> <lun id="0" type="0" path="E:\pyTarget\ubuntu16.ima" capacity="81943040" /> </host> </target> </root>pyTarget 啟動時的控制台：
INFO: pyTarget 1.5.7.1 2010-12-26 INFO: start iSCSI Service ... INFO: start iSNS Service ... INFO: initialize virtual device, please wait... INFO: start Http Service ... DEBUG: create target iscsi 192.168.1.10 3260 1 DEBUG: create host iqn.2006-11.1 DEBUG: target iscsi add host iqn.2006-11.1 DEBUG: Disk(E:\pyTarget\ubuntu16.ima) : initialize finish! DEBUG: host iqn.2006-11.1 add lun 0. DEBUG: configure target done INFO: initialize finish, start to run ...安裝開始時：
DEBUG: create connect INFO: initiator 192.168.1.15:38822 connect. NEGOTIATION: SessionType = Discovery NEGOTIATION: TargetName = iscsi NEGOTIATION: InitiatorName = iqn.2006-11.1 DEBUG: create session 00023d000000-0001. DEBUG: host iqn.2006-11.1 add session 00023d000000-0001. INFO: SessionID: 00023d000000-0001 DEBUG: session 00023d000000-0001 add connect 0. INFO: ConnectID: 0 NEGOTIATION: TargetPortalGroupTag = 1 NEGOTIATION: HeaderDigest = None NEGOTIATION: DataDigest = None NEGOTIATION: MaxRecvDataSegmentLength = 32768 NEGOTIATION: TargetMaxRecvdataLength = 65536 NEGOTIATION: ErrorRecoveryLevel = 0 NEGOTIATION: DefaultTime2Retain = 0 NEGOTIATION: DefaultTime2Wait = 2 NEGOTIATION: OFMarker = No NEGOTIATION: IFMarker = No DEBUG: connect 0 login finish COMMAND: Text Request DEBUG: session 00023d000000-0001 add connect 0. DEBUG: host iqn.2006-11.1 remove session 00023d000000-0001. DEBUG: destroy session 00023d000000-0001. DEBUG: connect 0 finish. DEBUG: create connect DEBUG: destroy connect 0 INFO: initiator 192.168.1.15:38824 connect. NEGOTIATION: SessionType = Discovery NEGOTIATION: TargetName = iscsi NEGOTIATION: InitiatorName = iqn.2006-11.1 DEBUG: create session 00023d000000-0002. DEBUG: host iqn.2006-11.1 add session 00023d000000-0002. INFO: SessionID: 00023d000000-0002 DEBUG: session 00023d000000-0002 add connect 0. INFO: ConnectID: 0 NEGOTIATION: TargetPortalGroupTag = 1 NEGOTIATION: HeaderDigest = None NEGOTIATION: DataDigest = None NEGOTIATION: MaxRecvDataSegmentLength = 32768 NEGOTIATION: TargetMaxRecvdataLength = 65536 NEGOTIATION: ErrorRecoveryLevel = 0 NEGOTIATION: DefaultTime2Retain = 0 NEGOTIATION: DefaultTime2Wait = 2 NEGOTIATION: OFMarker = No NEGOTIATION: IFMarker = No DEBUG: connect 0 login finish COMMAND: Text Request DEBUG: session 00023d000000-0002 add connect 0. DEBUG: host iqn.2006-11.1 remove session 00023d000000-0002. DEBUG: destroy session 00023d000000-0002. DEBUG: connect 0 finish. DEBUG: create connect DEBUG: destroy connect 0 INFO: initiator 192.168.1.15:38826 connect. NEGOTIATION: SessionType = Normal NEGOTIATION: TargetName = iscsi NEGOTIATION: InitiatorName = iqn.2006-11.1 DEBUG: create session 00023d010000-0003. DEBUG: host iqn.2006-11.1 add session 00023d010000-0003. INFO: SessionID: 00023d010000-0003 DEBUG: session 00023d010000-0003 add connect 0. INFO: ConnectID: 0 NEGOTIATION: TargetPortalGroupTag = 1 NEGOTIATION: TargetAlias = DESKTOP-54T1C9D NEGOTIATION: HeaderDigest = None NEGOTIATION: DataDigest = None NEGOTIATION: MaxRecvDataSegmentLength = 65536 NEGOTIATION: TargetMaxRecvdataLength = 65536 NEGOTIATION: ErrorRecoveryLevel = 0 NEGOTIATION: DefaultTime2Retain = 0 NEGOTIATION: DefaultTime2Wait = 2 NEGOTIATION: OFMarker = No NEGOTIATION: IFMarker = No NEGOTIATION: MaxConnections = 1 NEGOTIATION: InitialR2T = Yes NEGOTIATION: ImmediateData = Yes NEGOTIATION: DataPDUInOrder = Yes NEGOTIATION: DataSequenceInOrder = Yes NEGOTIATION: MaxOutstandingR2T = 1 NEGOTIATION: MaxBurstLength = 262144 NEGOTIATION: FirstBurstLength = 65536 DEBUG: connect 0 login finish COMMAND: SCSI Request COMMAND: Inquiry LUN:0 COMMAND: SCSI Request COMMAND: Inquiry LUN:0 COMMAND: SCSI Request安裝完成後，我嘗試啟動映像：
COMMAND: SCSI Request COMMAND: Write(10) LBA:0x1c40800 LEN:0x8 LUN:0 COMMAND: SCSI Request COMMAND: Write(10) LBA:0x1c40800 LEN:0x8 LUN:0 COMMAND: SCSI Request COMMAND: Write(10) LBA:0x1c40800 LEN:0x8 LUN:0 COMMAND: SCSI Request COMMAND: Write(10) LBA:0x1c40800 LEN:0x8 LUN:0 COMMAND: SCSI Request COMMAND: Write(10) LBA:0x800 LEN:0x8 LUN:0 COMMAND: SCSI Request COMMAND: Test Unit Ready LUN:0 COMMAND: SCSI Request COMMAND: Test Unit Ready LUN:0 # Install ends here # Client restarts, attempts to boot to the new install: DEBUG: create connect INFO: initiator 192.168.1.15:30733 connect. NEGOTIATION: SessionType = Normal WARNING: initiator name or target name is INVAILD iqn.2006-11.1 DEBUG: connect 0 finish.下降到 iPXE shell 並嘗試手動
sanboot，它會吐出其他資訊 -此錯誤：(Error code 3c0d61) This error originated from one of the following locations within the iPXE source code: net/tcp/iscsi.c (line 1226) This error indicates an unexpected status received from the iSCSI target.Wireshark 具有以下功能：
客戶端向主機發送
iSCSI LOGIN命令，值得注意的內容：Key/Value Pairs KeyValue: InitiatorName=iqn.2006-11.1 KeyValue: TargetName=iqn.2006-11.1 KeyValue: SessionType=Normal KeyValue: AuthMethod=CHAP,None主機返迴
iSCSI LOGIN響應，值得注意的內容：Status: Missing parameter (0x0207)此郵件列表中簡要討論了此錯誤程式碼，但我不夠精明，無法理解其重要性。
我不明白目標或發起者名稱如何突然無效？也不缺少什麼參數。該連接實際上只是在使用中，並且在安裝過程中沒有任何投訴……我什至可以複製它 - 再次啟動安裝不是問題，並且完成得很好（再次）。重新安裝後，當我嘗試啟動時，同樣的問題！
我注意到的一件事是，iSCSI 或 PXE 中的空密碼有些奇怪。在 ubuntu 安裝期間，為了完成 iSCSI 卷登錄，我必須按一次空格鍵 - 它不接受 NULL 長度密碼，即使密碼在配置中本質上是 NULL。
但是，在 iPXE 中無法輸入 SPACE 作為密碼 - 唯一的空白空間似乎被視為 NULL。但是，設置
initiator_pwd為 not NULL 似乎沒有幫助。我已經被困在這一點上幾個小時了。我該從哪裡獲得更多故障排除？
編輯：忘記添加：
iPXE 配置：
#!ipxe set iscsi-target iscsi:192.168.1.10::::iqn.2006-11.1 set gateway 0.0.0.0 set initiator-iqn iqn.2007-11.1 set keep-san 1 sanboot ${iscsi-target} boot新的 config.xml
<!-- configure the first target --> <target name="iscsi" ip="192.168.1.10" port="3260" portal="1"> <!-- the first iqn of this target configured for disk array --> <host name="iqn.2006-11.1" target_pwd="1" initiator_pwd="1"> # <-- Set passwords to avoid NULL problem, this comment was not part of the actual config <lun id="0" type="0" path="E:\pyTarget\ubuntu16.ima" capacity="81943040" /> </host> </target>腳本失敗後丟棄 iPXE shell：
1. dhcp 2. login username: iscsi password: 1 3. sanboot iscsi:192.168.1.10::::iqn.2006-11.1新數據包擷取：
iSCSI (Login Command) Opcode: Login Command (0x03) 1... .... = T: Transit to next login stage .0.. .... = C: Text is complete .... 00.. = CSG: Security negotiation (0x0) .... ..01 = NSG: Operational negotiation (0x1) VersionMax: 0x00 VersionMin: 0x00 TotalAHSLength: 0x00 DataSegmentLength: 93 (0x0000005d) ISID: 40002723b2f3 TSIH: 0x0000 InitiatorTaskTag: 0x18ae0002 CID: 0x0000 CmdSN: 0x00000000 ExpStatSN: 0x00000001 Key/Value Pairs KeyValue: InitiatorName=iqn.2007-11.1 KeyValue: TargetName=iqn.2006-11.1 KeyValue: SessionType=Normal KeyValue: AuthMethod=CHAP,None Padding: 000000 iSCSI (Login Response) Opcode: Login Response (0x23) 0... .... = T: Stay in current login stage .0.. .... = C: Text is complete .... 00.. = CSG: Security negotiation (0x0) VersionMax: 0x00 VersionActive: 0x00 TotalAHSLength: 0x00 DataSegmentLength: 0 (0x00000000) ISID: 40002723b2f3 TSIH: 0x0000 InitiatorTaskTag: 0x18ae0002 StatSN: 0x00000001 ExpCmdSN: 0x00000000 MaxCmdSN: 0x00000000 Status: Missing parameter (0x0207)
sanboot iscsi:192.168.1.10::::iscsi在客戶端控制台中返回Status: Authentication failed (0x0201)wireshark 和相應的Operation not allowed 410d61。pyTarget 控制台：
DEBUG: create connect DEBUG: destroy connect 0 INFO: initiator 192.168.1.15:1552 connect. NEGOTIATION: SessionType = Normal NEGOTIATION: TargetName = iscsi WARNING: InitiatorName %s do not exist. iqn.2007-11.1 DEBUG: connect 0 finish.
最後一條錯誤消息翻轉了電燈開關。尷尬的是，我的名字倒了：
在 iPXE 外殼中：
set initiator-iqn iqn.2006-11.1 sanboot iscsi:192.168.1.10::::iscsi現在我有啟動…
澄清一下，iPXE 配置在如下所示時有效：
#!ipxe set iscsi-target iscsi:192.168.1.10::::iscsi set gateway 0.0.0.0 set initiator-iqn iqn.2006-11.1 set keep-san 1 sanboot ${iscsi-target} boot