This is the problem that affected me the most in the history of Linux using so far. Image, for two full years i just dint know the solution to this prob is that easy. Too late of me to find out. any ways, better late than never.

So the problem is with FX 5200 Ubuntu liveCD/installation boot will hang mid-way, as to most users, it fills to first three bars and then fails. But the cause is acpi settings create some problem with Ubuntu booting. Nope, “acpi=off” option in Ubuntu boot options does NOT work. Now, that’s what everybody suggests only to know it never helps. Even Sathya suggested to me.

It doesnt work because, BIOS settings dominate at the boot time. The entry makes no sense. SO now does it become clear? You disable ACPI in BIOS!  Wow, that worked like magic for me. Now am running Ubuntu 9.10 (Karmic Koala) on my PC without any boot problems.

However, shutdown does not work properly. Other things like restart and general stuff work fine.

So try that comment on whether it works.

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