Messages in this thread | | | Date | Thu, 4 Aug 2005 08:03:21 +0200 (MEST) | From | Jan Engelhardt <> | Subject | Re: [PATCH] IDE disks show invalid geometries in /proc/ide/hd*/geometry |
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>Simple: do not use BIOS values. >[ Yes, there should be some warning from kernel. ]
On that matter, I get a warning from LILO wrt cyls and stuff:
07:47 spectre:~ # cat /proc/ide/hda/geometry physical 16383/16/63 logical 65535/16/63 07:58 spectre:~ # lilo Warning: Kernel & BIOS return differing head/sector geometries for device 0x80 Kernel: 65535 cylinders, 16 heads, 63 sectors BIOS: 1023 cylinders, 255 heads, 63 sectors Added linux * 07:59 spectre:~ # fdisk -l
Disk /dev/hda: 40.9 GB, 40982151168 bytes 255 heads, 63 sectors/track, 4982 cylinders
All of these numbers are virtual, since CHS is not really used anymore, as we know. But, which of these fake CHS values (16383/16/63 | 65535/16/63 | 1023/255/63) is the right one? 255/63/4982 is another matter, since it [almost] matches the actual size of the disk while the other three are just "for the bios".
Jan Engelhardt -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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