Hi, I have a multi-boot setup with two external USB HDs. One external hard drive takes a long time to power off[10 to 15sec]? If not power off competly on a restart, it will send me to grub rescue[device not present?] Can I increase the time that the computer is powered off during a restart? Right now I have do a shutdown, wait, and power back on. I am on Ubuntu 13.10 64b right now. I can use the terminal, but do need good complete instructions. This is a testing system, so I can breck it. Thank you for any help. Colin.
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