I installed backupmenu and get this with reboot with keyboard open:

UDev started
1
2
Error with: cp /lib/libac1.so.1 /tmp/disk/lib Code: 1
op: can't stat '/lib/libac1.so.1'" No such file or directory
Press any key to continue...
Error with: cp /lib/libattr.so.1.1.10 /tmp/disk/lib/ Code: 1
cp: can't stat '/lib/libattr.so.1.1.0': no such file or directory
Press any key to continue...
3.
4.
Modules starting

And then the menu loads

Is there an issue here I need to fix?