What is Freebsd 5.3 safe mode ?

[John Palmer]

I have installed Freebsd 5.3. When the machine boots up, it gives me
several options if I want to boot up in Default Mode, Safe Mode, Single User
mode, etc. I understand Single user mode. What is the difference between
Safe Mode and Default Mode?

Thanks

JP

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[Jeremie Le Hen]

Hello John,

> I have installed Freebsd 5.3. When the machine boots up, it gives me
> several options if I want to boot up in Default Mode, Safe Mode, Single
> User mode, etc. I understand Single user mode. What is the difference
> between Safe Mode and Default Mode?

IIRC, this disables ACPI. I looked for it in the manpage, but I wasn't
able to discover the exact meaning of this mode.

Regards,
--
Jeremie Le Hen
jeremie at le-hen dot org

[Gavin Atkinson]

On Mon, 2005-02-21 at 22:25 -0800, John Palmer wrote:

> I have installed Freebsd 5.3. When the machine boots up, it gives me
> several options if I want to boot up in Default Mode, Safe Mode, Single User
> mode, etc. I understand Single user mode. What is the difference between
> Safe Mode and Default Mode?

Firstly, please don't cross post to three lists, especially a developer
orierntated list alongside -newbies and -questions.

Safe mode forces PIO mode (disabling the use of DMA) and disables write
caching for all IDE hard drives and CD ROM drives, disables the probing
of EISA slots (as very few systems have them), and in i386 it also
disables the use of ACPI and the APICs.

Gavin

[Dag-Erling Smørgrav]

"John Palmer" <drgnut@hotmail.com> writes:

> I have installed Freebsd 5.3. When the machine boots up, it gives me
> several options if I want to boot up in Default Mode, Safe Mode,
> Single User mode, etc. I understand Single user mode. What is the
> difference between Safe Mode and Default Mode?

Safe mode disables ACPI, the APIC, ATA and ATAPI DMA, ATA write
caching, and all EISA devices.

DES
--
Dag-Erling Smørgrav - [email]des@des.no[/email]