Re: [CentOS] OT: AF 4k sector drives with 512 emulation

On 2/27/2015 3:06 PM, m.roth@5-cent.us wrote:

Alignment's easy: using parted (the user-hostile program), if you do go in with parted -a optimal /dev/drive, and do mkpart pri ext4 0.0GB 100% (for non-root drives, for example), it's aligned correctly.

i found -a optimal to do weird things, and almost always complain. I just use -a none now, and specify partition start in (512b) sectors, like..

# parted /dev/sdc align none mklabel gpt mkpart pri 512s -1s

don't start at 0, as thats where the MBR or GPT has to go. 512 sectors is 256K bytes, which puts you on a erase block boundary with most SSD's as well as HD's. -1s is end of the disk.