[CentOS] fdisk on centos 6

Fri Sep 16 12:10:19 UTC 2011
Jerry Geis <geisj at pagestation.com>

On 09/16/2011 06:59 AM, Steve Clark wrote:
> On 09/15/2011 06:03 PM, Jerry Geis wrote:
>>> I think the fdisk in 6 tries to align on 4k boundaries. Does fdisk -c do the
>>> same thing?
>>>
>> Scott - thanks I just tried -cu and same result.
>>
>> jerry
>>
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>>
> have you tried sfdisk?
>
>
Steve - I had not - but asking sfdisk to list the device on centos has 
the wrong geometry to start
with just like fdisk does. it should be 255 heads and 63 sectors.

sfdisk -v
sfdisk (util-linux-ng 2.17.2)

  sfdisk -l /dev/sde

Disk /dev/sde: 1022 cylinders, 247 heads, 62 sectors/track
Warning: The partition table looks like it was made
   for C/H/S=*/255/63 (instead of 1022/247/62).
For this listing I'll assume that geometry.
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0

    Device Boot Start     End   #cyls    #blocks   Id  System
/dev/sde1   *      0+    974-    975-   7830616+   b  W95 FAT32
         end: (c,h,s) expected (974,221,63) found (1023,254,63)
/dev/sde2          0       -       0          0    0  Empty
/dev/sde3          0       -       0          0    0  Empty
/dev/sde4          0       -       0          0    0  Empty


----------------
This is centos 5
sfdisk -v
sfdisk (util-linux 2.13-pre7)

  sfdisk -l /dev/sdb

Disk /dev/sdb: 974 cylinders, 255 heads, 63 sectors/track
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0

    Device Boot Start     End   #cyls    #blocks   Id  System
/dev/sdb1   *      0+    851     852-   6843658+  83  Linux
/dev/sdb2        852     973     122     979965   82  Linux swap / Solaris
/dev/sdb3          0       -       0          0    0  Empty
/dev/sdb4          0       -       0          0    0  Empty