my computer freezes after installing FreeBSD

mamalos

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If it freezes before it tries to read the OS from disk, then your problem is not FreeBSD but your hardware.
 

Trihexagonal

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It would have been easier to diagnose your problem if you had provided the error message you're seeing.

Have you got more than a total of 3GB RAM installed? This includes the RAM of your video card. If so, it may be an ACPI issue and may not boot till you remove as many sticks as it takes to get it down to 3GB RAM or under.
 

NewGuy

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mamalos said:
If it freezes before it tries to read the OS from disk, then your problem is not FreeBSD but your hardware.
No, this is a FreeBSD bug, introduced in 9.0. It's fairly well known (searching around the forums turns up several similar reports). Unfortunately the developers seem to feel it can be ignored.
 

wblock@

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NewGuy said:
No, this is a FreeBSD bug, introduced in 9.0. It's fairly well known (searching around the forums turns up several similar reports). Unfortunately the developers seem to feel it can be ignored.
Which bug, exactly? There are several things that can cause this problem, including bad BIOS misdetecting GPT partition as something BIOS related, BIOS AHCI/IDE mode, and old graid(4) metadata on the disk. Probably others.

The fixes for these vary from easy (switch AHCI/IDE mode to the opposite--it's not consistent for different hardware), to not so easy (use MBR on Lenovo when the BIOS is so badly done that it can't handle GPT), to dangerous.

OP does not mention the make or model of computer, which makes diagnosis more difficult.
 

Trihexagonal

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NewGuy said:
No, this is a FreeBSD bug, introduced in 9.0. It's fairly well known (searching around the forums turns up several similar reports). Unfortunately the developers seem to feel it can be ignored.
Not necessarily. The link to the motherboard OP provided led me to believe the problem might be related to the one I encountered:

P25G is one of the most advance and unique modules of PCCHIPS production. It can also support latest Intel Pentium 4...
 

kpa

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This has been beaten to death on other threads here, many older motherboard have serious BIOS bugs that makes them choke on GPT partitioned disks.
 

wblock@

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Gentoo, Debian, and Ubuntu are all variations of the same thing. FreeBSD is very different from all of them.

Are there other operating systems on the same computer (same disk or other disks)?

If so, suspect the boot loader.

If this is a BIOS problem with GPT partitions, the only option is to install as MBR.
 
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jaobz

jaobz

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no i dont have any other OS and i now it is diferent have installed FreeBSD on may laptop an y traieed install in MBR partitions in may PCdesktop
 

nakal

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This problem appeared since FreeBSD installs on GPT. There are a few mainboards (the firmware on it) that try to figure out things in MBR which is really a bad behavior. Sometimes a firmware update helps. Sometimes the only option is to use MBR instead of GPT.

Whatever you do, you should always yell at manufacturers. If you don't they will keep being ignorant. It is really a bad solution to implement specific workarounds, if the hardware itself is bad. They should rather fix the hardware and they won't, if you don't complain.
 
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