Linux gives error "GPT PMBR size mismatch will be corrected by w(rite)."
The error message is far from self-explanatory. Does this mean that Linux will (attempt to) resize the GPT partition boundaries if I mount and try to write to the disk? If so... how does it try to do this? Does it know about the issue with 512e / 4k sector size emulation?
Other users experiencing this issue have rewritten the partition table manually with success:
but if Linux does it automatically, that would be better (and not prone to user input error). I am on Debian Stretch with the back port 4.17 Linux kernel.
The context, if it matters:
I have an external hard drive that I removed (disk shucking) and connected to an internal SATA motherboard port. However, it is formatted and has data on it from the previous SATA disk controller.
Apparently this has something to do with 512e 4k sector size emulation. The disk reports logical sector size 512 / physical size 4096 bytes.
My data is backed up, of course. I just don't want to have to reformat and then re-write 7TB as that will take quite a while.