Huawei | Switch Firmware Upgrade

After the switch has restarted, use the display version command to verify that the new firmware version is installed:

< Huawei > display version

Chen initiated the TFTP transfer. The new firmware was heavy—nearly 400MB of compressed code intended to breathe new life into the old chassis. Huawei Switch Firmware Upgrade

The progress bar in the terminal window crawled. ##################################################################################... 45% After the switch has restarted, use the display

Silence. The only sound was the whir of the cooling fans in the racks. Chen sipped cold coffee. Upgrading a core switch is like defusing a bomb; you don't move, you barely breathe. Chen initiated the TFTP transfer

################################################################################## 100% File transferred successfully.

The new software sat in the flash memory, a dormant digital entity waiting to be awakened. But the old OS was still king of the hill. Chen had to tell the switch who the new boss was.

| Issue | Likely Cause | Solution | |-------|--------------|----------| | "Insufficient memory" | Flash too small | Delete unused files (delete /unreserved old.cc), clear logs | | "File is incompatible" | Wrong firmware model | Re-download for exact model (LI, EI, HI, etc.) | | Upgrade path error | Skipping required intermediate version | Follow upgrade matrix from release notes | | Boot loop after upgrade | Corrupt file or incompatible version | Boot from backup partition (press Ctrl+B during boot) and roll back | | License invalid after upgrade | New version requires new license | Reinstall license file stored earlier |