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Notes CCNA

Set boot file and recover from crash on Cisco switches. Use boot system commands, mode button, and boot loader steps to restore functionality after power loss or software issues.

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q#### Settup the boot file ####Sl(config)# boot system flash:/c2960-lanbasek9-mz.l 50-2.SE/c2960-lanbasek9-mz.I50-2.SE.bin#### Recovery from a crash ###Step 1. Connect a PC by console cable to the switch console port. Configure terminal emulationsoftware to connect to the switch.Step 2. Unplug the switch power cord.Step 3. Reconnect the power cord to the switch and, within 15 seconds, press and hold downthe Mode button while the System LED is still flashing green.Step 4. Continue pressing the Mode button until the System LED turns briefly amber and thensolid green; then release the Mode button.Step 5. The boot loader switch: prompt appears in the terminal emulation software on the PC.switch: setBOOT=flash:/c2960-lanbasek9-mz.122-55.SE7/c2960-lanbasek9-mz.122-55.SE7.bin(output omitted)switch: flash_initInitializing Flash...flashfs[0]: 2 files, 1 directoriesflashfsfO]: 0 orphaned files, 0 orphaned directoriesflashfsfO]: Total bytes: 32514048flashfs[0]: Bytes used: 11838464flashfsfO]: Bytes available: 20675584flashfsfO]: flashfs fsck took 10 seconds....done Initializing Flash.switch: dir flash:Directoiy of flash:/2 -rwx 11834846c2960-lanbasek9-mz,150-2.SE8.bin3 -rwx 2072multiple-fsswitch: BOOT=flash:c2960-lanbasek9-mz.150-2.SE8.binswitch: setBOOTMlash:c2960-lanbasek9-mz.150-2.SE8.bin(output omitted)switch: boot###Configure Basic Router Settings##Switch(config)#host SI

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