TestDisk shows different geometry (CHS) values?
Posted: 06 Mar 2013, 08:00
Hi,
Running testdisk shows different CHS values (1 cylinder). After selecting disk and partition type, testdisk will show:
Disk /dev/sda - 320 GB / 298 GiB - CHS 38914 255 63
But at another time of the same testdisk session ( meaning I might have done some Analyse or Advanced on the disk, no Write, and then return to the main menu) or at different run of testdisk, the information is shown like this:
Disk /dev/sda - 320 GB / 298 GiB - CHS 38913 255 63
My questions:
- What does it mean having different values if cylinder like above?
- Is there something wrong with MBR?
Note: the disk is brand new and I was trying to use it as a clone for recovery partitions of another hard disk (different size). I copied MBR of the old disk and write it to the new one, hopefully to be able to restore the two recovery partitions of the old harddisk.
Running testdisk shows different CHS values (1 cylinder). After selecting disk and partition type, testdisk will show:
Disk /dev/sda - 320 GB / 298 GiB - CHS 38914 255 63
But at another time of the same testdisk session ( meaning I might have done some Analyse or Advanced on the disk, no Write, and then return to the main menu) or at different run of testdisk, the information is shown like this:
Disk /dev/sda - 320 GB / 298 GiB - CHS 38913 255 63
My questions:
- What does it mean having different values if cylinder like above?
- Is there something wrong with MBR?
Note: the disk is brand new and I was trying to use it as a clone for recovery partitions of another hard disk (different size). I copied MBR of the old disk and write it to the new one, hopefully to be able to restore the two recovery partitions of the old harddisk.