craig@gtek.biz wrote:
> craig@gtek.biz said:
> I found a thread that mentioned the values should be multiples of
> 2048 for advanced format disks, which this ST31000524AS is, if I'm
The ST31000524AS is not advanced format. It uses traditional 512 byte
sectors. I have several of that particular model of drive.
> reading the product specs correctly. But both
> /sys/block/sdb/queue/physical_block_size and
> /sys/block/sdb/queue/logical_block_size report 512, which is why I
> asked about how to determine the actual sector size.
The actual sector size is 512.
# hdparm -I /dev/sda
...
Logical/Physical Sector size: 512 bytes
...
If it is advanced format then it would have reported it like this:
Logical Sector size: 512 bytes
Physical Sector size: 4096 bytes
Example using the new partitioner in the new debian-installer. This
would be good everywhere.
# sfdisk -d /dev/sda
# partition table of /dev/sda
unit: sectors
/dev/sda1 : start= 2048, size= 997376, Id=fd
...
Example using the old partitioner in the old debian-installer. This
is fine for 512 byte sectors but not for 4k sector disks.
# sfdisk -d /dev/sda
# partition table of /dev/sda
unit: sectors
/dev/sda1 : start= 63, size= 995967, Id=fd
...
I am sorry but I do not have a good explanation of the rest of your
question. I just responded about the part I knew.
Bob
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