From: muta...@gmail.com   
      
   On Sunday, April 24, 2022 at 11:49:58 AM UTC+10, wolfgang kern wrote:   
      
   > > In that case - do you know what happens with a   
   > > disk drive that has 4096-byte sectors and a BIOS?   
      
   > it depends on the age of the BIOS, 4K HDs can be read   
   > on 512 byte bounds anyway (just a bit slower then)   
      
   > > If you do a BIOS INT 13H to read a sector using LBA,   
   > > does it read 512 bytes or 4096 bytes?   
      
   > 512 bytes, 4k aligned read/writes are recommended for   
   > speed reasons only.   
      
   Sorry, I don't understand. I'm not concerned about   
   alignment.   
      
   If I have a buffer that is 512 bytes in size, and I do a BIOS   
   call to read LBA sector 2:   
      
   1. Will the first 8192 bytes of the disk be skipped, because   
   that is occupied by LBA 0 and LBA 1?   
      
   2. Will my buffer get overrun, and 3584 bytes of my other   
   code/data get trashed?   
      
   Thanks. Paul.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)