Messages in this thread | | | Date | Thu, 10 Apr 2008 21:15:15 +0200 | From | "Francis Moreau" <> | Subject | Re: Disk geometry from /sys |
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Hi,
On Thu, Apr 10, 2008 at 2:22 PM, linux-os (Dick Johnson) <linux-os@analogic.com> wrote: > > It becomes, as you say contentious, because with disk drives > manufactured during the past ten or so years, anything about > the physical geometry is fictitious. The PC BIOS continues to > calculate C/H/S because that's what BIOS interrupt 0x13 uses > to boot the machine. The boot code needs to know what the > BIOS claims or else it may fail to boot. However, once Linux > is up, there are no C/H/S unless they were invented --and > hopefully, the same as what the BIOS claims. >
Some bootloaders want the partition starts to be aligned on a cylinder size boundary. Try for example to setup a disk partition table by using parted. It almost always complains about the the size of the parts I try to create and suggest me others. The same stands for sfdisk except that it just gives you some warnings.
Thanks -- Francis
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