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BES switch reports: couldn't mount because of unsupported optional features

Last Updated:

Applies to

  • MetroCluster IP
  • BES-53248 switch upgrade
  • ONIE Install


  • Error during switch upgrade from to
  • Switch boot into ONIE
  • Errors reported:

EXT3-fs (sda3): error: couldn't mount because of unsupported optional features (240)

EXT2-fs (sda3): error: couldn't mount because of unsupported optional features (240)

EXT4-fs (sda3): warning: mounting fs with errors, running e2fsck is recommended

  • The switch is not coming up after the upgrade
  • Not able to stop the boot process


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