Trouble Installing Alternate CD - Ubuntu Desktop

[killswitch]

Hey All,

I am having trouble installing Ubuntu Desktop Alternate CD on top of Ubuntu Server.

Here are the steps I've taken:

1. Downloaded i386 Alternate iso and burned it to CD-RW with Poweriso

2. Turned Server on, let Ubuntu Server boot up, logged in with credentials

3. Typed "sudo apt-cdrom add" (system asks for disc to be inserted)

4. Insert Disc and the following information comes up:

Mounting CD-ROM
Identifying...
Found 2 packages, 0 source indexes, 0 translation indexes and 1 signature
Found label 'Ubuntu 9.04_Jaunty Jackalope_ - Release i386 (20090420)
This disc is called 'Ubuntu 9.04_Jaunty Jackalope_ - release -386 (20090420)
Copying package list...gpgv: signature made 20 Apr 2009
gpgv: key FBB75451 was created 32812922 seconds in the future
Time warp or clock problem
gpgv: can't check signature: timestamp conflict
E: Sub-process gpgv returned an error code (2)
W: Signature verification failed for: /cdrom/dists/jaunty/release.gpg

I then typed: sudo vi /etc/apt/sources.list - and it shows the CD says "main restricted."

Does anyone have a clue what is going on?

[D-cat]

gpgv: key FBB75451 was created 32812922 seconds in the future
Time warp or clock problem
gpgv: can't check signature: timestamp conflict

Your clock is wrong. Try running sntp first...

sudo sntp pool.ntp.org

---

Edit: Oops, I forgot you don't have a net connection yet. Just reboot and set your clock in BIOS. Sorry.

[killswitch]

Yep, that it is. That it is.

I logged into Linux Server and did

date 080710582009

and now that is ok.

Do I still need to do it from the BIOS?

[D-cat]

If you shut down by the command line (sudo reboot or sudo poweroff), it should update the hardware clock on the way down. If you're partial to shutting down by pressing the power switch, then you may need to do it in BIOS as well.

You can also manually update your BIOS clock to the current system (OS) time by typing sudo hwclock --systohc . That's the command the shutdown script would normally execute.