I spent a few tries on this as I have never used VirtualBox before. I think this may be randomly documented on the web but I am putting this here for archive purposes (myself) and in case other stumble upon this.
Create a VM in Virtual box and set the type as Gentoo Linux. I think anyone can handle this because there is a pretty nice wizard that helps you out. Some notables: Base Memory: 512, Boot hardisk: 20 gigs (8 is plenty for a minimal install and not much else).
Fire it up and it will ask for a boot disk. An .iso on the hard drive works fine. I choose to try out the new Gentoo Linux 2008.0 Minimal Install CD.
If you have never installed Gentoo before. Please follow the detailed install handbook. If you have installed Gentoo before, this is no different than any other Gentoo install, take your time and read the instructions!
When you get to the compilation of your kernel step. You may have good luck with these notes:
1. Processor type and features
- Processor family->
- Enable Tickless System (Dynamic Ticks)
- Remove High Resolution Timer Support
- Remove Symmetric multi-processing support
- Subarchitecture Type->PC-compatible
- Remove Machine Check Exception
- Remove 64 bit Memory and IO resources
High Memory Support (off)
Power Management Options
Remove Suspend to RAM and standby
Enable ACPI Support
Remove Macintosh device drivers
Device Drivers -> ATA/ATAPI/MFM/RLL support
enable Generic PCI bus-master DMA support -> Intel PIIXn chipsets support
enable PCI IDE chipset support
Device Drivers -> Serial ATA and Parallel ATA drivers
enable Intel ESB, ICH, PIIX3, PIIX4 PATA/SATA support
Device Drivers -> Network device support
Remove Ethernet (1000 Mbit)
Remove Ethernet (10000 Mbit)
Device Drivers -> Ethernet device support -> Ethernet (10 or 100Mbit)
Remove 3COM cards
Remove “Tulip” family network device support
Remove Broadcom 4400 ethernet support
Remove nForce Ethernet support
Remove Intel® PRO/100+ support
Remove RealTek RTL-8139 C+ PCI Fast Ethernet Adapter Support
Remove RealTek RTL-8129/8130/8139 PCI Fast Ethernet Adapter Support
Enable AMD PCnet32 PCI support
Device Drivers -> Graphics support
Remove Lowlevel video output switch controls
Enable Support for frame buffer devices
Enable Support for frame buffer devices -> VESA VGA graphics support
Continue with the install and when you get to the reboot step you should also unmount the boot cd from virtualbox.
Fire up your new VM and start configuring it how you like it. It should seem like a brand new Gentoo install which is pretty bare bones in itself. I would recommend picking a WM to install like GNOME, KDE, or Xfce4
Have fun. You may be interested in the ‘snapshot’ feature of virtualbox. I also hit “Save State’ when I close my VM. I guess you could analogue that to hibernating or ‘pausing’ as it literally comes back to where you were when you fire it up again.