Preview Tool

Cisco Bug: CSCvs79768 - N9K Micron_5100_MTFD "Bootflash Read-Only State" ; Kernel I/O Errors Found

Last Modified

Jul 12, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases


Description (partial)

Write operations on switch fail, 'copy run start', etc.

The following error is observed when running "show version"

# show version

sh: /mnt/pss/patch_debug.log: Read-only file system

`show logging logfile`
%USER-3-SYSTEM_MSG: File Writing Failed for /mnt/pss/aaa_vdc_1.seqnum - aaad
%SYSMGR-3-CFGWRITE_FAILED: Configuration copy failed (error-id 0x401E0004).
%KERN-3-SYSTEM_MSG: [2246055.161748] blk_update_request: I/O error, dev loop9, sector 0 - kernel

# show module 

Mod Ports             Module-Type                       Model          Status
--- ----- ------------------------------------- --------------------- ---------
1    54   48x10/25G/32G + 6x40/100G Ethernet/FC N9K-C93180YC-FX       active *  

Mod  Sw                       Hw    Slot
---  ----------------------- ------ ----
1    9.2(4)                   1.2    NA

# show hardware internal bootflash model 

Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.