Ubuntu – Updating kernel modules in initrd for ubuntu-server usb install

Update: Microsoft has created the Windows 7 USB/DVD Download tool to make this very easy.

I used this guide as a set of directions - http://kurtsh.spaces.live.com/blog/cns!DA410C7F7E038D!1665.entry

1. Get a USB Thumbdrive between 4-32GB.

If the drive is larger than 32GB, Windows cannot format it as FAT32, so an alternate utility must be used. Windows can still read FAT32 partitions larger than 32GB, though some devices cannot.

2. Run cmd.exe as administrator and enter the following commands followed by Enter

1. diskpart
2. list disk
3. select disk # (where # is your USB drive as determined from step 2)
4. clean (This step will delete all data on your flash drive!)
5. create partition primary
6. active
7. format fs=fat32 quick
8. assign
9. list volume
10. exit
11. bootsect.exe /nt60 F: /mbr (where F: is the drive letter of your USB drive as reported by list volume)

3. Copy the Windows files from the ISO or other source using robocopy

robocopy.exe E:\ F:\ /MIR

where E:\ is the source and F:\ is the destination. Drag-and-drop or copy/paste can also be used, if you know what you're doing.

Configure your PC to boot from the USB drive

In some machines the USB thumbdrive will appear to the BIOS as any other hard drive. You need to muck with the boot sequence to place the thumbdrive higher in the boot order than the local hard drive.

Note that after you do this you might want to reset the boot order in order to ensure that BitLocker doesn't detect boot changes based on the fact that the thumdrive is missing if it was there when you encrypted your drive.

Ok... I've found the answer with experiments.

1. Use the server or alternate ISO instead of the desktop ISO! Preseed does not work with the desktop ISO. Use the linux-generic kernel and tasksel ubuntu-desktop to get a desktop installation.

2. The auto boot parameter does not work (at least for i386). Use auto=true priority=critical instead.

3. In contrast to the official documentation, which states that "if the URL is missing a protocol, http is assumed", http:// is required or the installer will not be able to fetch the preseed file.

4. If you have multiple network cards, add interface=auto or the installer will ask you which interface to use.

Therefore, the minimum boot parameters needed are auto=true priority=critical url=http://mydomain.com/path/preseed initrd=/install/initrd.gz

If I have time, I'll definitely post a documentation-improvement request to launchpad.