Re: How to disable UDMA for HDD?
On Thursday 12 August 2004 19:11, Chuck Swiger wrote: Stevan Tiefert wrote: [ ... ] you did not understood what I wanted. I needed a suggestion how to install FreeBSD without UDMA-support. Your suggestion is only useful if the system is running, but that was not the case! What happens if you configure the BIOS of the system not to use UDMA modes for that device? Most BIOSes will let you control individual devices, so set whatever it is to PIO4; otherwise, disable UDMA for everything long enough to complete the install, and then tweak things from there. Hello Chuck, it is right, if you say that BIOSes provide switching between PIO0 to PIO4, but there is no way to control UDMA in a BIOS. Anyway, it doesn't matter, because every Operating System (without DOS) is taking control after the bootstrap over the hardware and even FreeBSD. If the kernel is taking control, switches have to take in the kernel described in the e-mail from Nathan at the loader prompt: set hw.ata.ata_dma=0 Bye Stevan Tiefert -- deltree /y c:\windows My suggestion to solve all your problems! ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: How to disable UDMA for HDD?
Stevan Tiefert wrote: [ ... ] you did not understood what I wanted. I needed a suggestion how to install FreeBSD without UDMA-support. Your suggestion is only useful if the system is running, but that was not the case! What happens if you configure the BIOS of the system not to use UDMA modes for that device? Most BIOSes will let you control individual devices, so set whatever it is to PIO4; otherwise, disable UDMA for everything long enough to complete the install, and then tweak things from there. -- -Chuck ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: How to disable UDMA for HDD?
On Tue, 10 Aug 2004 09:08:29 +0200, Stevan Tiefert [EMAIL PROTECTED] wrote: SNIP set hw.ata.ata_dma=0 Now it is possible to install FreeBSD! Thanks very much! Mr. Stevan Tiefert Is there a way to disable DMA for a single hard drive, instead of all IDE devices? -- Matt H [EMAIL PROTECTED] ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: How to disable UDMA for HDD?
Matt H wrote: On Tue, 10 Aug 2004 09:08:29 +0200, Stevan Tiefert [EMAIL PROTECTED] wrote: SNIP set hw.ata.ata_dma=0 Now it is possible to install FreeBSD! Thanks very much! Mr. Stevan Tiefert Is there a way to disable DMA for a single hard drive, instead of all IDE devices? How about this: /sbin/atacontrol mode 0 PIO4 XXX? (if you want UDMA disabled on the master at channel 0). - Mark ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: How to disable UDMA for HDD?
On Wednesday 11 August 2004 16:46, Matt H wrote: On Tue, 10 Aug 2004 09:08:29 +0200, Stevan Tiefert [EMAIL PROTECTED] wrote: SNIP set hw.ata.ata_dma=0 Now it is possible to install FreeBSD! Thanks very much! Mr. Stevan Tiefert Is there a way to disable DMA for a single hard drive, instead of all IDE devices? Hello, I don't know it. Bye Stevan Tiefert -- deltree /y c:\windows My suggestion to solve all your problems! ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: How to disable UDMA for HDD?
On Wednesday 11 August 2004 16:55, Mark wrote: Matt H wrote: On Tue, 10 Aug 2004 09:08:29 +0200, Stevan Tiefert [EMAIL PROTECTED] wrote: SNIP set hw.ata.ata_dma=0 Now it is possible to install FreeBSD! Thanks very much! Mr. Stevan Tiefert Is there a way to disable DMA for a single hard drive, instead of all IDE devices? How about this: /sbin/atacontrol mode 0 PIO4 XXX? (if you want UDMA disabled on the master at channel 0). - Mark ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] Hello Mark, you did not understood what I wanted. I needed a suggestion how to install FreeBSD without UDMA-support. Your suggestion is only useful if the system is running, but that was not the case! Thanks to Nathan! Bye Stevan Tiefert -- deltree /y c:\windows My suggestion to solve all your problems! ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: How to disable UDMA for HDD?
On Mon, Aug 09, 2004 at 11:10:40AM +0200, Stevan Tiefert wrote: Hello, when I try to install FreeBSD 5.2.1 on my computer with HDD on ata0-master and CD-ROM on ata0-slave I got five interessting messages during the boot-process: ... ad0: 4124MB SAMSUNG VA34323A [8938/15/63] at ata0-master UDMA33 ad0: TIMEOUT - READ_DMA retrying (2 retries left) LBA=8446347 ad0: TIMEOUT - READ_DMA retrying (2 retries left) LBA=0 ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=8446347 ad0: WARNING - READ_DMA interrupt was seen but taskqueue stalled LBA=8446347 then the computer stops and he resists in this state till now... OpenBSD downgrades this DMA-thing automaticly and the CD-ROM seems not supporting UDMA and I assume to set at bootphase 3 a device.hint but I don't know which one? With regards Mr. Stevan Tiefert Here are the two pertinent sysctl variables for your ATA hard disk and CDROM, respectively: hw.ata.ata_dma: 1 hw.ata.atapi_dma: 0 These variables are read only once the kernel has been booted, so if you want to try setting them manually you'll have to put them into /boot/loader.conf as something like: hw.ata.ata_dma=0 Nathan -- PGP Public Key: pgp.mit.edu:11371/pks/lookup?op=getsearch=0xD8527E49 pgpYhBXqPCvyD.pgp Description: PGP signature
