Error Loading Flash C3550
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Catalyst 3750 Series SwitchesTroubleshoot and AlertsTroubleshooting TechNotes Recovering Catalyst Fixed Configuration Switches from a Corrupted or Missing Image Download Print
Copy Xmodem Flash
Available Languages Download Options PDF (129.4 KB) View with Adobe Reader cisco 3750 error loading flash on a variety of devices Updated:Jun 04, 2007 Document ID:41845 Contents Introduction Prerequisites Requirements Components Used Conventions
Xmodem Putty
Problem Switch Displays the Switch: Prompt or "Error Loading Flash:" Step-by-Step Recovery Procedure How to Speed Up Xmodem Recovery Verify Related Information Introduction This document explains how to the boot environment variable needs to be set to a bootable image recover Cisco Catalyst fixed configuration switches from a corrupt or missing system image or an incorrectly set boot variable. The Catalyst fixed configuration switches that this document describes include the 2940, 2950/2955, 2970, 3550, 3560, 3750 and the 3750 Metro series switches. Prerequisites Requirements If you have not already done so, connect a PC to the console unable to stat flash/ no such device port of the switch. For information on how to connect a terminal to a Catalyst fixed configuration switch, refer to Connecting a Terminal to the Console Port on Catalyst Switches. Use a terminal emulation program such as Microsoft Windows HyperTerminal in order to establish the console session. These are the settings: Bits per second: 9600 Data bits: 8 Parity: None Stop bits: 1 Flow control: None Components Used This document is not restricted to specific software and hardware versions. The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command. Conventions Refer to Cisco Technical Tips Conventions for more information on document conventions. Problem When Catalyst fixed configuration switches experience boot errors, these conditions can apply: The switch is in a continuous reboot. The switch displays the switch: prompt. The error loading flash: m
account only takes a few minutes. Join Now I just bought some switches on eBay and apparently the bin is
Unable To Stat Flash:/: Invalid Argument
corrupted.... I am getting flashfs[0]: 0 files, 1 directories flashfs[0]: 0 xmodem i/o error orphaned files, 0 orphaned directories flashfs[0]: Total bytes: 32514048 flashfs[0]: Bytes used: 1024 flashfs[0]: Bytes available: 32513024 flashfs[0]: flashfs
Unable To Stat Flash/ Permission Denied
fsck took 9 seconds. ...done Initializing Flash. Boot Sector Filesystem (bs) installed, fsid: 3 done. Loading "flash:c2960-lanbasek9-mz.122-37.SE1/c2960-lanbasek9-mz.122-37.SE1.bin"...flash:c2960-lanbasek9-mz.122-37.SE1/c2960-lanbasek9-mz.122-37.SE1.bin: no such file or directory Error loading "flash:c2960-lanbasek9-mz.122-37.SE1/c2960-lanbasek9-mz.122-37.SE1.bin" Interrupt within 5 seconds to abort http://www.cisco.com/c/en/us/support/docs/switches/catalyst-2950-series-switches/41845-192.html boot process. Boot process failed... The system is unable to boot automatically. The BOOT environment variable needs to be set to a bootable image. Therefore I am stuck with a switch: prompt, I have the flash on a TFTP server, how do I load it without being at a elevated # prompt? Cisco 2960-24-TT-L Reply Subscribe View Best https://community.spiceworks.com/topic/356691-how-to-load-ios-flash-at-the-switch-prompt Answer RELATED TOPICS: Крякозябры во flash-вставках Flash: The Right Way at the Right Price You’re On Flash…Now What?   17 Replies Pimiento OP Sulinder8254 Jul 9, 2013 at 2:22 UTC Why don't you try the tar image like: c2960-lanbasek9-tar.122-58.SE2.tar, and use the command: switch#archive download-sw tftp://xxx.xxx.xxx.xxx/c2960-lanbasek9-tar.122-58.SE2.tar
0 Serrano OP Vapour1ze Jul 9, 2013 at 2:24 UTC because I am at the SWITCH: prompt,,,,,,,,,,,,,,,,,,,,, I can't get to a Switch# or Switch> the flash won't boot so I am stuck at Switch: with a help of: switch: help ? -- Present list of available commands boot -- Load and boot an executable image cat -- Concatenate (type) file(s) copy -- Copy a file delete -- Delete file(s) dir -- List files in directories flash_init -- Initialize flash filesystem(s) format -- Format a filesystem fsck -- Check filesystem consistency help -- Present list of available commands load_helper -- Load and initialize a helper image memory -- Present memory heap utilization information mkdir -- Create dir(s) more -- ConcUnfortunately there is no easy way to recover a corrupt or deleted IOS image on a fixed configuration Cisco Catalyst switch. You must use xModem which commonly takes 2+ hours. This lab will discuss and demonstrate the IOS recovery procedure for fixed configuration https://www.freeccnaworkbook.com/workbooks/ccna/recovering-a-corrupt-cisco-ios-image-on-a-catalyst-switch Catalyst series switches using xModem.
Real World Application Recovering the Cisco IOS image http://www.techrepublic.com/forums/discussions/corrupt-cisco-catalyst-3550-cant-boot-ios/ on a Cisco switch is one of those tasks that is nice to know and not need it then need it and not know it. In the field you may find yourself faced with a Cisco switch that cannot boot up or crashes when booting up due to a possible IOS Image corruption. Lab Prerequisites This lab will require a REAL switch as this unable to lab cannot be emulated using GNS3. The Cisco IOS on the switch must be corrupt or missing to perform this lab, to emulate this error you can erase the flash memory to practice this lab. An active console session to the device is REQUIRED. You'll need to use either HyperTerminal or SecureCRT as Putty does not support xModem. Lab Objectives Boot the switch into SWITCH ROM mode. Initialize the flash file system. OPTIONAL - Format the flash file system unable to stat if needed. (This will remove your startup configuration) Set the baud rate to 115200 to increase xmodem transfer speed and decrease time required to restore the IOS Image. Copy the Cisco IOS Image via xModem to Flash: Set the boot parameter to the new image name located in Flash: Unset the baud so that it defaults back to 9600. Boot the switch and verify that the switch boots properly. Lab Instruction Recovering the Cisco IOS Image on a fix configuration Cisco Catalyst Series Switch is quite a bit different and more of an "old school" way of doing an IOS image recovery. Unfortunately fixed configuration switches require the use of xModem to restore a corrupt or missing IOS images unlike the Cisco 4500 and Cisco 6500 Series supervisor engines which use compact flash cards Step 1. Boot your switch into switch ROM mode. This typically involves holding down the STAT button on the front of the switch when plugging in the power. You can check out the required procedure by clicking HERE! Once you've booted your switch into Switch ROM mode you'll be see the following dispatch; Boot Sector Filesystem (bs) installed, fsid: 2 Base ethernet MAC Address: 00:14:f2:d2:41:80 Xmodem file system is available. The password-recovery mechanism is enabled. The system has been interrupted prior to initializing the flash filesystem. The following commands will initialize the flash filesystem, and finish loading the operating system software: flash_init bootUnited States Australia United Kingdom Japan Newsletters Forums Resource Library Tech Pro Free Trial Membership Membership My Profile People Subscriptions My stuff Preferences Send a message Log Out TechRepublic Search GO Topics: CXO Cloud Big Data Security Innovation Software Data Centers Networking Startups Tech & Work All Topics Sections: Photos Videos All Writers Newsletters Forums Resource Library Tech Pro Free Trial Editions: US United States Australia United Kingdom Japan Membership Membership My Profile People Subscriptions My stuff Preferences Send a message Log Out TechRepublic | Forums | Networks Networks Register Now or Log In to post Welcome back, My Profile Log Out Recent Activity FAQs Guidelines Question 0 Votes Locked Corrupt Cisco Catalyst 3550 - Can't Boot IOS By forums · 8 years ago Hi all,I have a Catalyst 3550 48 EMI whose boot image was corrupted. I was given no choice but to try to upload a new image via console.I followed the advice from the Cat 3550 Config Guide - Troubleshooting section, and at the "switch:" prompt, used 'copy xmodem: flash:myimage.bin"The image I was trying to upload first, was my primary image - c3550-ipservices-mz.122-44.SE.binAfter 2 hours, it would successfully upload, but when trying to boot it, using 'boot flash:c3550-ipservices-mz.122-44.SE.bin' I received the following:switch: boot flash:c3550-ipservices-mz.122-44.SE.binLoading "flash:c3550-ipservices-mz.122-44.SE.bin"...flash:c3550-ipservices-mz.122-44.SE.bin: magic number mismatch: bad mzip fileError loading "flash:c3550-ipservices-mz.122-44.SE.bin"Interrupt within 5 seconds to abort boot process.Boot process failed...switch:I tried this twice, and both times didn't work. I then downloaded an earlier IOS version, and tried with that file:"c3550-i5q3l2-mz.121-22.EA1.bin"Same problem. Here's my most recent attempt:switch: copy xmodem: flash:c3550-i5q3l2-mz.121-22.EA1.binBegin the Xmodem or Xmodem-1K transfer now...CC### Send (x) c3550-i5q3l2-mz.121-22.EA1.bin: 4246528 bytes, 47:09 elapsed, 1500 cps, 26%............File "xmodem:" successfully copied to "flash:c3550-i5q3l2-mz.121-22.EA1.bin"switch: dir flash:Directory of flash:/2 -rwx 26