single mode die when upgrade freebsd14.1 to 14.2 .

Dear all :
in last two weaks ago, i have upgrade freebsd14.1 to 14.2. today , i want to enter single mode to update my boot code with gpart . but when i want to enter single mode from reboot. what ever i input , the single mode die , no any response . how to fix this issue ? or that is freebsd14.2. bug ? thanks.
 
Just a remark: you don't need the single user mode to update the bootcodes. You just need to be root.
DEAr Emrion:
thanks. but now , my workstation freebsd14.2 single mode is ok. but my laptop freebsd14.2 singe mode is dead. i don't know why. it's not only soul to update bootcode in single mode. thanks.

the workstatios and laptop upgrade 14.1 to 14.2 in the same day.
 
In the beastie menu you need to press "2". What happens next? At what stage does it stop? You need to press ENTER when the dialog appears when choosing a shell (sh). Where are you stuck?
 
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