Recuperar o prompt do carregador de inicialização do MDS9000
Introdução
Este documento descreve como recuperar um Switch de data center multicamada (MDS) do Boot Loader Prompt e do Boot Mode.
Pré-requisitos
Requisitos
A Cisco recomenda que você tenha conhecimento destes tópicos:
- Comandos de configuração CLI do MDS9000
- Como configurar uma conexão de console para o switch MDS.
- Como configurar ou conectar o switch MDS a uma rede através de sua porta de gerenciamento.
- Familiaridade com TFTP.
Componentes Utilizados
As informações neste documento são baseadas no requisito de software release 6.2(9) e posterior. Este documento está usando um switch MDS9148S, switchname tempest que suporta de 12 a 48 portas Fibre Channel de 16 Gbps de taxa de linha.
As informações neste documento foram criadas a partir de dispositivos em um ambiente de laboratório específico. Todos os dispositivos utilizados neste documento foram iniciados com uma configuração (padrão) inicial. Se a rede estiver ativa, certifique-se de que você entenda o impacto potencial de qualquer comando.
Informações de Apoio
Para funcionarem corretamente, os switches MDS exigem um Kickstart não corrompido válido e uma imagem do sistema para inicializar completamente. Imagens Kickstart inválidas, corrompidas ou ausentes impedem que um switch seja inicializado e para no Prompt do Carregador de Inicialização. Um switch com uma imagem Kickstart válida, mas com uma Imagem do Sistema inválida ou ausente, termina no Modo de Inicialização.
Sequência de inicialização do switch
BIOS > Loader > Kickstart Image > System Image (Carregador > Imagem de Início Rápido > Imagem do Sistema)
- O sistema básico de entradas e saídas (BIOS) carrega o carregador.
- O Carregador carrega a Imagem Kickstart na RAM e inicia a Imagem Kickstart.
- A Imagem Kickstart é carregada e inicia a Imagem do Sistema.
- A imagem do sistema lê o arquivo de configuração de inicialização.
Prompt do Switch
| Fase |
Prompt |
Descrição |
| BIOS |
Não inicializável |
O BIOS inicia o autoteste de inicialização e o teste de memória. |
| Carregador |
carregador> |
O carregador de inicialização descompacta o software carregado para inicializar uma imagem kickstart. Ctrl + C (Control Key e C Key) para entrar no prompt do carregador de inicialização. |
| Kickstart |
switch(boot)# |
Quando a fase do carregador de inicialização terminar, pressione Ctrl + ] (tecla Control e tecla de Colchete direito) para entrar no modo de inicialização. |
| Sistema |
login: |
A imagem do sistema carrega o arquivo de configuração de inicialização e retorna um switch para o prompt de login. |
Procedimento de recuperação
Da sessão do console do switch.
carregador>
Etapa 1. Baixe as imagens Kickstart e System do switch e coloque-as no diretório do servidor TFTP.
Neste exemplo, o endereço IP do servidor TFTP é 10.104.204.100.
Etapa 2. Configure o endereço IP de gerenciamento do switch, a máscara de sub-rede e seu gateway padrão.
Check config options in loader prompt using help option
loader> help
help - print online help
boot - Boot image
cmdline - <arguments>
dir - List Directory
help - print online help
network - Set network communication settings
reload - Reboot the board.
serial - Set serial console settings
show - Show loader configuration
loader> net --ip=10.66.78.80 --nm=255.255.255.128 --gw=10.66.78.4
Neste exemplo:
- O endereço IP da interface mgmt0 do switch é 10.66.78.80 255.255.255.128
- O endereço IP do gateway padrão do switch é 10.66.78.4
OU
A sintaxe de atribuição de IP no prompt do carregador varia um pouco para os modelos de hardware do switch.
Exemplo listado aqui no caso de switches de malha da série T&V.
loader> set ip 10.66.78.80 255.255.255.128
loader> set gw 10.66.78.4
Observação: a configuração da etapa 2 será necessária se você estiver inicializando o switch pela primeira vez (para o switch RMA) ou se o switch tiver sido inicializado com write erase.
Etapa 3. Inicialize a imagem Kickstart, que está localizada no diretório do servidor TFTP, para trazer o switch para o modo de inicialização.
loader> boot tftp://10.104.204.100/m9100-s5ek9-kickstart-mz.8.3.1.bin eTSEC2: Speed 1000, full duplex Using eTSEC2 device TFTP from server 10.104.204.100; our IP address is 10.66.78.80; sending through gateway 10.66.78.4 Filename 'm9100-s5ek9-kickstart-mz.8.3.1.bin'. Load address: 0x8000000 Loading: *################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ####### done Bytes transferred = 26027008 (18d2400 hex) NBI at 08000000 size 26027008 Booting image at addr 0x00800000 ... Memory <- <0x0 0x0 0x1 0x0> (4096MB) ethernet0: local-mac-address <- 10:05:ca:b6:c5:a0 ethernet1: local-mac-address <- 00:e0:0c:00:01:fd ethernet2: local-mac-address <- 00:e0:0c:00:02:fd CPU clock-frequency <- 0x3f941f80 (1067MHz) CPU timebase-frequency <- 0x3f941f8 (67MHz) CPU bus-frequency <- 0x1fca0fc0 (533MHz) zImage starting: loaded at 0x00800000 (sp: 0x7fedc620) Allocating 0x620d88 bytes for kernel ... gunzipping (0x00000000 <- 0x00817000:0x00de3838)...done 0x5bc060 bytes Using loader supplied ramdisk at 0x2800000-0x3de8e00 initrd head: 0x1f8b0808 Linux/PowerPC load: rw root=/dev/ram0 rdbase=0x7000000 card_index=9046 maxcpus=2 ip=off ramdisk_size=262144 noquiet obfl_type_ide=1 kgdboc=ttyS0,9600,B console=ttyS0,9600n8nn loader_ver="02.01.17" card_index=9046 quiet bootdev=mgmt0 server_ip=64.104.204.100 ksimg=m9100-s5ek9-kickstart-mz.8.3.1.bin isanimg= Finalizing device tree... flat tree at 0xdf0140 Ísetup_arch: bootmem mpc85xx_ds_setup_arch() arch: exit [ 0.060378] Host controller irq 26 [ 0.103390] Assign root port irq 26 [ 0.144046] Host controller irq 24 [ 0.193691] Assign root port irq 24 [ 0.810630] physmap-flash physmap-flash.0: Could not reserve memory region [ 1.084751] Enabling all PCI devices INIT: Checking all filesystems..r.r.r.retval=[1] r done WARNING: Image sync is going to be disabled after a loader netboot. Loading system software No system image is specified /etc/init.d/functions: li INIT: Sending processes the KILL signal Cisco Nexus Operating System (NX-OS) Software TAC support: http://www.cisco.com/tac Copyright (c) 2002-2018, Cisco Systems, Inc. All rights reserved. The copyrights to certain works contained in this software are owned by other third parties and used and distributed under license. Certain components of this software are licensed under the GNU General Public License (GPL) version 2.0 or the GNU Lesser General Public License (LGPL) Version 2.1. A copy of each such license is available at http://www.opensource.org/licenses/gpl-2.0.php and http://www.opensource.org/licenses/lgpl-2.1.php switch(boot)#
Etapa 4. Recupere o switch do modo de inicialização.
1. Verifique a configuração IP no prompt de inicialização do switch.
switch(boot)# sh ip
ip routing is disabled
Management Interface: ip address 10.66.78.80/25
ip default-gateway 10.66.78.4
Se IP Config não for encontrado, configure novamente o endereço IP de gerenciamento da interface e o endereço IP do gateway padrão, conforme mostrado.
switch(boot)# config t Enter configuration commands, one per line. End with CNTL/Z. switch(boot)(config)# interface mgmt 0 switch(boot)(config-if)# ip address 10.66.78.80 255.255.255.128 switch(boot)(config-if)# no shut switch(boot)(config-if)# exit switch(boot)(config)# ip default-gateway 10.66.78.4 switch(boot)(config)# exit
-
Teste a conectividade IP entre o servidor TFTP e o switch (a resposta do ping não está disponível no prompt do carregador).
Execute um ping do endereço IP de gerenciamento do switch a partir do servidor TFTP.
C:\Users\mpandika> ping 10.66.78.80 Pinging 10.66.78.80 with 32 bytes of data: Reply from 10.66.78.80: bytes=32 time=2ms TTL=60 Reply from 10.66.78.80: bytes=32 time=3ms TTL=60 Reply from 10.66.78.80: bytes=32 time=3ms TTL=60 Reply from 10.66.78.80: bytes=32 time=3ms TTL=60 Ping statistics for 10.66.78.80: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 2ms, Maximum = 3ms, Average = 2ms C:\Users\mpandika>
- Baixe as imagens Kickstart e System do servidor TFTP para o bootflash do switch.
switch(boot)# copy tftp://10.104.204.100/m9100-s5ek9-kickstart-mz.8.3.1.bin bootflash: Trying to connect to tftp server...... Connection to server Established. Copying Started..... TFTP get operation was successful Copy complete, now saving to disk (please wait)... switch(boot)# switch(boot)#copy tftp://10.104.204.100/m9100-s5ek9-mz.8.3.1.bin bootflash: Trying to connect to tftp server...... Connection to server Established. Copying Started..... TFTP get operation was successful Copy complete, now saving to disk (please wait)... switch(boot)#
4. Verifique se o download das imagens do Kickstart e do Sistema foi feito com êxito no bootflash do switch.
switch(boot)# dir bootflash: 4096 Dec 22 2002 01:38:31 .partner/ 297 Nov 09 2017 07:18:54 MDS201711091818530370.lic 297 Nov 09 2017 07:28:42 MDS201711091828418770.lic 4096 Jul 23 2018 14:44:25 lost+found/ 26027008 Aug 08 2018 02:55:31 m9100-s5ek9-kickstart-mz.8.3.1.bin 109635731 Aug 08 2018 02:53:38 m9100-s5ek9-mz.8.3.1.bin 3430222 Feb 01 2000 02:31:30 moonlake.1.f.xsvf 23467 Jul 30 2018 12:40:56 mts.log 347607 Jul 28 2017 04:46:31 portchannel 4096 Dec 22 2002 02:38:54 scripts/ 31812 Jun 30 2018 05:07:27 snmp.pcap Usage for bootflash: filesystem 1264746496 bytes used 2106781696 bytes free 3371528192 bytes total switch(boot)#
5. Carregue a imagem do Sistema.
switch(boot)# load bootflash:m9100-s5ek9-mz.8.3.1.bin Uncompressing system image: bootflash:/m9100-s5ek9-mz.8.3.1.bin CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC Load plugins that defined in image conf: /isan/plugin_img/img.conf No Patching support on this platform Loading plugin 0: core_plugin... No Patching support on this platform Enter pboot_chk_compatibility num srgs 1 0: swid-core-s5ek9m, swid-core-s5ek9m num srgs 1 0: swid-sup-mini-ks, swid-sup-mini-ks INIT: Switching to runlevel: 3 INIT: Sending processes the TERM signal switch(boot)# INIT: 2018 Aug 8 03:13:03 %SYSLOG-2-SYSTEM_MSG : Syslogs wont be logged into logflash until logflash is online 2018 Aug 8 03:13:06 %KERN-0-SYSTEM_MSG: [ 1.084751] Enabling all PCI devices - kernel 2018 Aug 8 03:14:13 switch %CARDCLIENT-2-REG: OK System is coming up ... Please wait ... System is coming up ... Please wait ... 2018 Aug 8 03:14:22 switch %ASCII-CFG-2-CONFIG_REPLAY_STATUS: Bootstrap Replay Started. System is coming up ... Please wait ... User Access Verification 10.66.78.80 login: 2018 Aug 8 03:14:41 switch %ASCII-CFG-2-CONFIG_REPLAY_STATUS: Bootstrap Replay Done. 2018 Aug 8 03:14:44 switch %PMON-SLOT1-2-PMON_CRIT_INFO: Port Monitor Critical Information: Config download success . 2018 Aug 8 03:14:45 switch %ASCII-CFG-2-CONFIG_REPLAY_STATUS: Ascii Replay Started. 2018 Aug 8 03:14:45 switch %PMON-SLOT1-2-PMON_CRIT_INFO: Port Monitor Critical Information: Policy (slowdrain) activation is successfull . 2018 Aug 8 03:14:46 switch %PLATFORM-2-PS_OK: Power supply 1 ok(Serial number QCS18242L8D) 2018 Aug 8 03:14:46 switch %PLATFORM-2-PS_FANOK: Fan in Power supply 1 ok 2018 Aug 8 03:14:46 switch %PLATFORM-2-PS_FAIL: Power supply 2 failed or shut down(Serial number QCS18242L0H) 2018 Aug 8 03:14:46 switch %PLATFORM-2-FAN_OK: Fan module ok 2018 Aug 8 03:14:46 switch %PLATFORM-2-FAN_OK: Fan module ok 2018 Aug 8 03:14:46 switch %PLATFORM-2-FAN_OK: Fan module ok 2018 Aug 8 03:14:46 switch %PLATFORM-2-FAN_OK: Fan module ok 2018 Aug 8 14:15:35 tempest %ASCII-CFG-2-CONFIG_REPLAY_STATUS: Ascii Replay Done. User Access Verification tempest login:
6. Faça login no switch.
tempest login: admin Password: Last login: Wed Aug 8 14:20:01 on pts/0 Cisco Nexus Operating System (NX-OS) Software TAC support: http://www.cisco.com/tac Copyright (c) 2002-2018, Cisco Systems, Inc. All rights reserved. The copyrights to certain works contained in this software are owned by other third parties and used and distributed under license. Certain components of this software are licensed under the GNU General Public License (GPL) version 2.0 or the GNU Lesser General Public License (LGPL) Version 2.1. A copy of each such license is available at http://www.opensource.org/licenses/gpl-2.0.php and http://www.opensource.org/licenses/lgpl-2.1.php tempest#
7. Verifique as variáveis de inicialização.
tempest# show boot Current Boot Variables: kickstart variable = bootflash:/m9100-s5ek9-kickstart-mz.8.1.1.bin system variable = bootflash:/m9100-s5ek9-mz.8.1.1.bin Boot POAP Disabled No module boot variable set Boot Variables on next reload: kickstart variable = bootflash:/m9100-s5ek9-kickstart-mz.8.1.1.bin system variable = bootflash:/m9100-s5ek9-mz.8.1.1.bin Boot POAP Disabled No module boot variable set tempest#
8. Defina as variáveis de inicialização para a imagem correta.
tempest# show version
Cisco Nexus Operating System (NX-OS) Software
TAC support: http://www.cisco.com/tac
Documents: http://www.cisco.com/en/US/products/ps9372/tsd_products_support_series_home.html
Copyright (c) 2002-2018, Cisco Systems, Inc. All rights reserved.
The copyrights to certain works contained herein are owned by
other third parties and are used and distributed under license.
Some parts of this software are covered under the GNU Public
License. A copy of the license is available at
http://www.gnu.org/licenses/gpl.html.
Software
BIOS: version 2.1.17
loader: version N/A
kickstart: version 8.3(1)
system: version 8.3(1)
BIOS compile time: 01/08/14
system image file is: bootflash:///m9100-s5ek9-mz.8.3.1.bin
system compile time: 7/30/2018 12:00:00 [07/12/2018 19:32:46]
Hardware
cisco MDS 9148S 16G 48 FC (1 Slot) Chassis ("2/4/8/16 Gbps FC/Supervisor")
Motorola, e500v2 with 4088556 kB of memory.
Processor Board ID JAE18250A8C
Device name: tempest
bootflash: 4018896 kB
Kernel uptime is 0 day(s), 0 hour(s), 47 minute(s), 44 second(s)
Last reset at 362296 usecs after Wed Aug 8 13:02:31 2018
Reason: Reset Requested by CLI command reload
System version: 8.1(1)
Service:
plugin
Core Plugin
tempest# config t
Enter configuration commands, one per line. End with CNTL/Z.
tempest(config)# boot kickstart bootflash:m9100-s5ek9-kickstart-mz.8.3.1.bin
Performing image verification and compatibility check, please wait....
tempest(config)# boot system bootflash:m9100-s5ek9-mz.8.3.1.bin
Performing image verification and compatibility check, please wait....
tempest(config)#
9. Verifique o conjunto de Variáveis de Inicialização.
tempest# show boot
Current Boot Variables:
kickstart variable = bootflash:/m9100-s5ek9-kickstart-mz.8.3.1.bin
system variable = bootflash:/m9100-s5ek9-mz.8.3.1.bin
Boot POAP Disabled
No module boot variable set
Boot Variables on next reload:
kickstart variable = bootflash:/m9100-s5ek9-kickstart-mz.8.1.1.bin
system variable = bootflash:/m9100-s5ek9-mz.8.1.1.bin
Boot POAP Disabled
No module boot variable set
10. Salve a configuração atual do switch.
tempest# copy running-config startup-config [########################################] 100% Copy complete. tempest#
11. Verifique as Variáveis de Inicialização set post copy running-config startup-config.
tempest# show boot
Current Boot Variables:
kickstart variable = bootflash:/m9100-s5ek9-kickstart-mz.8.3.1.bin
system variable = bootflash:/m9100-s5ek9-mz.8.3.1.bin
Boot POAP Disabled
No module boot variable set
Boot Variables on next reload:
kickstart variable = bootflash:/m9100-s5ek9-kickstart-mz.8.3.1.bin
system variable = bootflash:/m9100-s5ek9-mz.8.3.1.bin
Boot POAP Disabled
No module boot variable set
Histórico de revisões
| Revisão | Data de publicação | Comentários |
|---|---|---|
2.0 |
19-Jun-2024 |
Título, Introdução, PII, Isenção de responsabilidade, Tradução automática e Formatação atualizados. |
1.0 |
14-Aug-2018 |
Versão inicial |
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