I am trying to use CentOS 4 on this machine and it does not allow me to set DMA to 1, it just says that it is not possible. I have tried updating to the latest release and it still won't work.
I have searched for it on Google and there is a thread mentioning the same machine and CentOS, but none of the solutions (-p, -X 12) seem to work at all and there is no "it works!!!!!" message.
Is there anyway I can get DMA working or will I have to wait for CentOS 5? Will any of the "unsupported" kernels work? (I would try Ubuntu's kernel on CentOS, as I am successfuly using that distribution, but it is a bit stupid not to use SELinux and it probably wouldn't work either).
Thanks
Gabriel
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On 23/10/06, first last prelude_2_murder@yahoo.co.uk wrote:
I am trying to use CentOS 4 on this machine and it does not allow me to set DMA to 1, it just says that it is not possible. I have tried updating to the latest release and it still won't work.
I have searched for it on Google and there is a thread mentioning the same machine and CentOS, but none of the solutions (-p, -X 12) seem to work at all and there is no "it works!!!!!" message.
Is there anyway I can get DMA working or will I have to wait for CentOS 5? Will any of the "unsupported" kernels work? (I would try Ubuntu's kernel on CentOS, as I am successfuly using that distribution, but it is a bit stupid not to use SELinux and it probably wouldn't work either).
I don't think you can use hdparm on SATA disks?
I know some BIOS's allow SATA disks to look like IDE 'legacy' drives (/dev/hdX) - if this is the case, then the OS may be using the generic IDE driver and it might not support DMA.
If this is what you are seeing, then you might want to turn off the legacy or compatible mode in the BIOS and use the drives via /dev/sdX ...
James Pearson
--- James Pearson james-p@moving-picture.com wrote:
On 23/10/06, first last prelude_2_murder@yahoo.co.uk wrote:
I am trying to use CentOS 4 on this machine and it does not allow
me to
set DMA to 1, it just says that it is not possible. I have tried updating to the latest release and it still won't work.
I have searched for it on Google and there is a thread mentioning
the
same machine and CentOS, but none of the solutions (-p, -X 12) seem
to
work at all and there is no "it works!!!!!" message.
Is there anyway I can get DMA working or will I have to wait for
CentOS
5? Will any of the "unsupported" kernels work? (I would try
Ubuntu's
kernel on CentOS, as I am successfuly using that distribution, but
it
is a bit stupid not to use SELinux and it probably wouldn't work either).
I don't think you can use hdparm on SATA disks?
I know some BIOS's allow SATA disks to look like IDE 'legacy' drives (/dev/hdX) - if this is the case, then the OS may be using the generic IDE driver and it might not support DMA.
If this is what you are seeing, then you might want to turn off the legacy or compatible mode in the BIOS and use the drives via /dev/sdX ...
I think this is the case, but there's no way to change the settings in the BIOS (that's dell for you). Any way to force the system to use SATA instead of P-ATA?
Thanks
Gabriel
James Pearson _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
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I hve a PE sc430 running sata drives. transfer rates are jsut fine and it show no DMA either. I think the DMA transfers run just fine in sata and do not need to be enabled by default. Also some disk tools in linux have not caught up to the sata revolution yet. If your tests show low transfers then you have an issue. I have the type of transfers during tests i expect so i think the tools are erroneously reporting dms off because they don't understand sata drives yet.
first last wrote:
--- James Pearson james-p@moving-picture.com wrote:
On 23/10/06, first last prelude_2_murder@yahoo.co.uk wrote:
I am trying to use CentOS 4 on this machine and it does not allow
me to
set DMA to 1, it just says that it is not possible. I have tried updating to the latest release and it still won't work.
I have searched for it on Google and there is a thread mentioning
the
same machine and CentOS, but none of the solutions (-p, -X 12) seem
to
work at all and there is no "it works!!!!!" message.
Is there anyway I can get DMA working or will I have to wait for
CentOS
5? Will any of the "unsupported" kernels work? (I would try
Ubuntu's
kernel on CentOS, as I am successfuly using that distribution, but
it
is a bit stupid not to use SELinux and it probably wouldn't work either).
I don't think you can use hdparm on SATA disks?
I know some BIOS's allow SATA disks to look like IDE 'legacy' drives (/dev/hdX) - if this is the case, then the OS may be using the generic IDE driver and it might not support DMA.
If this is what you are seeing, then you might want to turn off the legacy or compatible mode in the BIOS and use the drives via /dev/sdX ...
I think this is the case, but there's no way to change the settings in the BIOS (that's dell for you). Any way to force the system to use SATA instead of P-ATA?
Thanks
Gabriel
James Pearson _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Send instant messages to your online friends http://uk.messenger.yahoo.com _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
--- William Warren hescominsoon@emmanuelcomputerconsulting.com wrote:
I hve a PE sc430 running sata drives. transfer rates are jsut fine and it show no DMA either. I think the DMA transfers run just fine in sata and do not need to be enabled by default. Also some disk tools in linux have not caught up to the sata revolution yet. If your tests show low transfers then you have an issue. I have the type of transfers during tests i expect so i think the tools are erroneously reporting dms off
because they don't understand sata drives yet.
I get terrible data transfers and lots of errors while writing to the disk.
Well, it seems that I will have to wait until CentOS 5 beta :)
Thanks
Gabriel
first last wrote:
--- James Pearson james-p@moving-picture.com wrote:
On 23/10/06, first last prelude_2_murder@yahoo.co.uk wrote:
I am trying to use CentOS 4 on this machine and it does not allow
me to
set DMA to 1, it just says that it is not possible. I have tried updating to the latest release and it still won't work.
I have searched for it on Google and there is a thread mentioning
the
same machine and CentOS, but none of the solutions (-p, -X 12)
seem
to
work at all and there is no "it works!!!!!" message.
Is there anyway I can get DMA working or will I have to wait for
CentOS
5? Will any of the "unsupported" kernels work? (I would try
Ubuntu's
kernel on CentOS, as I am successfuly using that distribution,
but
it
is a bit stupid not to use SELinux and it probably wouldn't work either).
I don't think you can use hdparm on SATA disks?
I know some BIOS's allow SATA disks to look like IDE 'legacy'
drives
(/dev/hdX) - if this is the case, then the OS may be using the generic IDE driver and it might not support DMA.
If this is what you are seeing, then you might want to turn off
the
legacy or compatible mode in the BIOS and use the drives via
/dev/sdX
...
I think this is the case, but there's no way to change the settings
in
the BIOS (that's dell for you). Any way to force the system to use
SATA
instead of P-ATA?
Thanks
Gabriel
James Pearson _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Send instant messages to your online friends
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
-- My "Foundation" verse: Isa 54:17 No weapon that is formed against thee shall prosper; and every tongue that shall rise against thee in judgment thou shalt condemn. This is the heritage of the servants of the LORD, and their righteousness is of me, saith the LORD.
-- carpe ductum -- "Grab the tape" CDTT (Certified Duct Tape Technician)
Linux user #322099 Machines: 206822 256638 276825 http://counter.li.org/ _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
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interesting. What server is this? if you are getting tons of errors i am willing to bet you have a hardware problem. have you checked for an updated bios? Also try something like fedora 6 or opensuse and see if the problems persist.
first last wrote:
--- William Warren hescominsoon@emmanuelcomputerconsulting.com wrote:
I hve a PE sc430 running sata drives. transfer rates are jsut fine and it show no DMA either. I think the DMA transfers run just fine in sata and do not need to be enabled by default. Also some disk tools in linux have not caught up to the sata revolution yet. If your tests show low transfers then you have an issue. I have the type of transfers during tests i expect so i think the tools are erroneously reporting dms off
because they don't understand sata drives yet.
I get terrible data transfers and lots of errors while writing to the disk.
Well, it seems that I will have to wait until CentOS 5 beta :)
Thanks
Gabriel
first last wrote:
--- James Pearson james-p@moving-picture.com wrote:
On 23/10/06, first last prelude_2_murder@yahoo.co.uk wrote:
I am trying to use CentOS 4 on this machine and it does not allow
me to
set DMA to 1, it just says that it is not possible. I have tried updating to the latest release and it still won't work.
I have searched for it on Google and there is a thread mentioning
the
same machine and CentOS, but none of the solutions (-p, -X 12)
seem
to
work at all and there is no "it works!!!!!" message.
Is there anyway I can get DMA working or will I have to wait for
CentOS
5? Will any of the "unsupported" kernels work? (I would try
Ubuntu's
kernel on CentOS, as I am successfuly using that distribution,
but
it
is a bit stupid not to use SELinux and it probably wouldn't work either).
I don't think you can use hdparm on SATA disks?
I know some BIOS's allow SATA disks to look like IDE 'legacy'
drives
(/dev/hdX) - if this is the case, then the OS may be using the generic IDE driver and it might not support DMA.
If this is what you are seeing, then you might want to turn off
the
legacy or compatible mode in the BIOS and use the drives via
/dev/sdX
...
I think this is the case, but there's no way to change the settings
in
the BIOS (that's dell for you). Any way to force the system to use
SATA
instead of P-ATA?
Thanks
Gabriel
James Pearson _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Send instant messages to your online friends
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
-- My "Foundation" verse: Isa 54:17 No weapon that is formed against thee shall prosper; and every tongue that shall rise against thee in judgment thou shalt condemn. This is the heritage of the servants of the LORD, and their righteousness is of me, saith the LORD.
-- carpe ductum -- "Grab the tape" CDTT (Certified Duct Tape Technician)
Linux user #322099 Machines: 206822 256638 276825 http://counter.li.org/ _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Send instant messages to your online friends http://uk.messenger.yahoo.com _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
--- William Warren hescominsoon@emmanuelcomputerconsulting.com wrote:
interesting. What server is this? if you are getting tons of errors i am willing to bet you have a hardware problem. have you checked for an updated bios? Also try something like fedora 6 or opensuse and see if the problems persist.
It's not a server, it's a brand new laptop (Inspiron 6400).
Ubuntu works perfectly on it, so that's what I'm using until I can get CentOS working.
Just a minor annoyance and very understandable, considering that Ubuntu was released a year later than CentOS 4.0.
Gabriel
first last wrote:
--- William Warren hescominsoon@emmanuelcomputerconsulting.com
wrote:
I hve a PE sc430 running sata drives. transfer rates are jsut
fine
and it show no DMA either. I think the DMA transfers run just fine in sata and do not need to be enabled by default. Also some disk tools in linux have not caught up to the sata revolution yet. If your tests show low transfers then you have an issue. I have the type of transfers during tests i expect so i think the tools are erroneously reporting dms
off
because they don't understand sata drives yet.
I get terrible data transfers and lots of errors while writing to
the
disk.
Well, it seems that I will have to wait until CentOS 5 beta :)
Thanks
Gabriel
first last wrote:
--- James Pearson james-p@moving-picture.com wrote:
On 23/10/06, first last prelude_2_murder@yahoo.co.uk wrote:
I am trying to use CentOS 4 on this machine and it does not
allow
me to
set DMA to 1, it just says that it is not possible. I have
tried
updating to the latest release and it still won't work.
I have searched for it on Google and there is a thread
mentioning
the
same machine and CentOS, but none of the solutions (-p, -X 12)
seem
to
work at all and there is no "it works!!!!!" message.
Is there anyway I can get DMA working or will I have to wait
for
CentOS
5? Will any of the "unsupported" kernels work? (I would try
Ubuntu's
kernel on CentOS, as I am successfuly using that distribution,
but
it
is a bit stupid not to use SELinux and it probably wouldn't
work
either).
I don't think you can use hdparm on SATA disks?
I know some BIOS's allow SATA disks to look like IDE 'legacy'
drives
(/dev/hdX) - if this is the case, then the OS may be using the generic IDE driver and it might not support DMA.
If this is what you are seeing, then you might want to turn off
the
legacy or compatible mode in the BIOS and use the drives via
/dev/sdX
...
I think this is the case, but there's no way to change the
settings
in
the BIOS (that's dell for you). Any way to force the system to
use
SATA
instead of P-ATA?
Thanks
Gabriel
James Pearson _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Send instant messages to your online friends
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
-- My "Foundation" verse: Isa 54:17 No weapon that is formed against thee shall prosper;
and
every tongue that shall rise against thee in judgment thou shalt condemn. This is the heritage of the servants of the LORD, and
their
righteousness is of me, saith the LORD.
-- carpe ductum -- "Grab the tape" CDTT (Certified Duct Tape Technician)
Linux user #322099 Machines: 206822 256638 276825 http://counter.li.org/ _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Send instant messages to your online friends
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
-- My "Foundation" verse: Isa 54:17 No weapon that is formed against thee shall prosper; and every tongue that shall rise against thee in judgment thou shalt condemn. This is the heritage of the servants of the LORD, and their righteousness is of me, saith the LORD.
-- carpe ductum -- "Grab the tape" CDTT (Certified Duct Tape Technician)
Linux user #322099 Machines: 206822 256638 276825 http://counter.li.org/ _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Send instant messages to your online friends http://uk.messenger.yahoo.com
aha..that's probably a chipset support issue..<G>
first last wrote:
--- William Warren hescominsoon@emmanuelcomputerconsulting.com wrote:
interesting. What server is this? if you are getting tons of errors i am willing to bet you have a hardware problem. have you checked for an updated bios? Also try something like fedora 6 or opensuse and see if the problems persist.
It's not a server, it's a brand new laptop (Inspiron 6400).
Ubuntu works perfectly on it, so that's what I'm using until I can get CentOS working.
Just a minor annoyance and very understandable, considering that Ubuntu was released a year later than CentOS 4.0.
Gabriel
first last wrote:
--- William Warren hescominsoon@emmanuelcomputerconsulting.com
wrote:
I hve a PE sc430 running sata drives. transfer rates are jsut
fine
and it show no DMA either. I think the DMA transfers run just fine in sata and do not need to be enabled by default. Also some disk tools in linux have not caught up to the sata revolution yet. If your tests show low transfers then you have an issue. I have the type of transfers during tests i expect so i think the tools are erroneously reporting dms
off
because they don't understand sata drives yet.
I get terrible data transfers and lots of errors while writing to
the
disk.
Well, it seems that I will have to wait until CentOS 5 beta :)
Thanks
Gabriel
first last wrote:
--- James Pearson james-p@moving-picture.com wrote:
On 23/10/06, first last prelude_2_murder@yahoo.co.uk wrote: > I am trying to use CentOS 4 on this machine and it does not
allow
me to > set DMA to 1, it just says that it is not possible. I have
tried
> updating to the latest release and it still won't work. > > I have searched for it on Google and there is a thread
mentioning
the > same machine and CentOS, but none of the solutions (-p, -X 12)
seem
to > work at all and there is no "it works!!!!!" message. > > Is there anyway I can get DMA working or will I have to wait
for
CentOS > 5? Will any of the "unsupported" kernels work? (I would try Ubuntu's > kernel on CentOS, as I am successfuly using that distribution,
but
it > is a bit stupid not to use SELinux and it probably wouldn't
work
> either). I don't think you can use hdparm on SATA disks?
I know some BIOS's allow SATA disks to look like IDE 'legacy'
drives
(/dev/hdX) - if this is the case, then the OS may be using the generic IDE driver and it might not support DMA.
If this is what you are seeing, then you might want to turn off
the
legacy or compatible mode in the BIOS and use the drives via
/dev/sdX
...
I think this is the case, but there's no way to change the
settings
in
the BIOS (that's dell for you). Any way to force the system to
use
SATA
instead of P-ATA?
Thanks
Gabriel
James Pearson _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Send instant messages to your online friends
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
-- My "Foundation" verse: Isa 54:17 No weapon that is formed against thee shall prosper;
and
every tongue that shall rise against thee in judgment thou shalt condemn. This is the heritage of the servants of the LORD, and
their
righteousness is of me, saith the LORD.
-- carpe ductum -- "Grab the tape" CDTT (Certified Duct Tape Technician)
Linux user #322099 Machines: 206822 256638 276825 http://counter.li.org/ _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Send instant messages to your online friends
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
-- My "Foundation" verse: Isa 54:17 No weapon that is formed against thee shall prosper; and every tongue that shall rise against thee in judgment thou shalt condemn. This is the heritage of the servants of the LORD, and their righteousness is of me, saith the LORD.
-- carpe ductum -- "Grab the tape" CDTT (Certified Duct Tape Technician)
Linux user #322099 Machines: 206822 256638 276825 http://counter.li.org/ _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Send instant messages to your online friends http://uk.messenger.yahoo.com _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
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first last -
James Pearson -
William Warren