Simultaneous LinuxWindows on dual processor PCs 460
During installation of a new scsi disk in a ProLiant 370 server with RHEL4, LVM manager crashed (hung) and the configuration was corrupted. The machine cannot boot, and gets kernel panic...
Marten Kemp
There wasn't any. There was a mode with protection and virtual memory but it wasn't designed to support a virtual machine.
From the '386 on the Intel processors virtualized themselves, and all previous generations back to the 8088. The AMDs do the same. There were some limitations due to OS designers insisting on running processes at the highest privilege level, which was intended to be reserved for the virtual machine manager--the latest generation adds what amounts to a "Ring Minus 1" to deal with them, and there are already virtual machine managers on the way that support it.
spoke the following words to the mbuttes incomp.os.linux.misc...: It is very easy, actually. The key is to install both Windows versions first before you install GNU-Linux, because the GNU-Linux bootloader should be...
What kind of "interesting" things do you have in mind that can't be done with the current virtualization capabilities of the Intel processors?
You've mentioned before that you didn't think that "it" could be done with Windows. There are a number of virtual machine managers available that are more or less analogous to VM on the IBM mainframes. The one that is closest is vmWare's ESX Server which runs natively on the bare iron just as VM did, with all other operating systems running as guests. Both vmWare and Microsoft have a variety of hosted virtual machine managers--Microsoft's are hosted only on Windows while vmWare's can be hosted on either Windows or Linux, but both can run most Intel-hosted versions of Windows as guests, including XP, 2K3 Server, and unless something has been changed recently the Vista betas. There's also a simulator called "QEMU" that works as a virtual machine monitor when running Intel-targetted code on Intel processors that is capable of guesting most versions of Windows. If you're an OS-2 diehard there's a virtual machine monitor hosted on OS-2 that can run Windows as well.
Further, this is nothing new, I was running multiple NT and Novell and Linux sessions under vmWare back in the late '90s.
If you want to play with this kind of stuff, both Microsoft and vmWare have free demos of their virtualization products, and vmWare has just announced a host OS, ESX doesn't) is going to be freeware as of the next release, or you could play with QEMU.
-- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net)
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