48-bit LBA addressing

[Nicola Taibi]

Hi,
as the object above I ecountered this problem with Microsoft Windows XP Pro
SP2 but solved in just a moment.
If I install Win XP in a 80GB or less than 127.5 GB (or 136 GB) HD all gone
well, but if I use an HD > 127.5 GB (or 136 GB) my system become slow also
with 48-bit patch.
Someone have the same experience and have found any solution?

Another question, Is there a linux system that offer 48-bit native solution?

With kind regards,
Nick
http://www.geocities.com/whisky1767

 

[Arno Wagner]

Hi,
as the object above I ecountered this problem with Microsoft Windows XP Pro
SP2 but solved in just a moment.
If I install Win XP in a 80GB or less than 127.5 GB (or 136 GB) HD all gone
well, but if I use an HD > 127.5 GB (or 136 GB) my system become slow also
with 48-bit patch.
Someone have the same experience and have found any solution?

Another question, Is there a linux system that offer 48-bit native solution?

All Linux disk drivers currently map to 32 bit sector numbers,
i.e. the kernel does it for you. If the kernel is compiled with
large block device support, it uses 64 bit sector numbers instead.
So, 48 bit native is not supported, but entirely unneded.
If your disks are smaller than 2TB, use the 32 bit support.
The 48 bit LBA numbers will be clipped at 2TB. If you use
block devices larger than 2TB, compile the large block device
option into the kernel.

Support for LBA48 on the disks side has been in the Linux kernel
for some years now.

BTW, the 32 bit and 64 bit sector numbers come from SCSI, which
never had the ridiculous limitations of ATA.

Arno

 

[Rod Speed]

as the object above

Its a subject, not an object.

I ecountered this problem with Microsoft Windows XP Pro SP2 but solved in just a moment.

Looks like you didnt solve it, actually.

If I install Win XP in a 80GB or less than 127.5 GB (or 136 GB) HD all gone well, but if I use an HD > 127.5 GB (or
136 GB) my system become slow also with 48-bit patch.

It should have no effect on the speed.

Someone have the same experience and have found any solution?

Yes, add 48bit LBA support properly.

Another question, Is there a linux system that offer 48-bit native solution?

Its only a problem with Win, not with linux.