HP 4800G Series Configuration Manual page 1718

Slot 2:
Set next configuration file successfully
# Specify file soft-version2.bin as the boot file for the next boot for all members.
<IRF> boot-loader file soft-version2.bin slot all main
This command will set the boot file of the specified board. Continue? [Y/N]:y
The specified file will be used as the main boot file at the next reboot on slot 1!
The specified file will be used as the main boot file at the next reboot on slot 2!
# Reboot the device. The software version is upgraded now.
<IRF> reboot
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