DUA REBOOT slow vs. DUA EXECUTEPROCESS shutdown -r

[Kevin Bulgrien]

Why might the Device Update Agent (DUA) REBOOT command (2) is so slow. It
takes about two minutes to reboot the system. If I used EXECUTEPROCESS
RebootOK=DAYES and call cmd.exe with shutdown.exe -r as an argument, the
reboot time is reasonable.

Any idea what gives? This makes the DUA REBOOT command practically useless.

 

[Kevin Bulgrien]

The subject of the original question is misleading. I have been unable to
reproduce getting `shutdown -r` to work in this image. I must have made an
error in my testing to find a workaround for the slow DUA REBOOT command.

Since then I have found a workaround that I can reproduce. Instead of
`shutdown -r`, it is possible to use `fba.exe -reboot`. This fba.exe
workaround implements a very fast reboot. The question still stands why the
DUA REBOOT command is so slow.

The DUA command I use as the workaround is:

EXECUTEPROCESS,DAERH_ABORT,DAYES,DANO,C:\WINDOWS\fba\fba.exe,DANO,-reboot,DAYES,4294967295,DANO,DASEC_REV,DANO,DANO,,DASEC_REV,DANO,DANO,,,DAYES,C:\WINDOWS\system32,1,DANO,,DANO,,0,0,0,0,0,0,0,32,0,DANO,,DANO,,DANO,

This is a minlogon image, so your mileage may vary.