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|    alt.os.development    |    Operating system development chatter    |    4,255 messages    |
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|    Message 3,025 of 4,255    |
|    James Harris to wolfgang kern    |
|    Re: Format for the OS image    |
|    08 Jan 22 12:30:51    |
      From: james.harris.1@gmail.com              On 05/01/2022 18:54, wolfgang kern wrote:       > On 05/01/2022 17:39, James Harris wrote:       >       >>> What formats of image file are best for the OS itself?              ...              >       > I prefer a never fragmented (iow: always consecutive) Flat Binary image,       > and as all M$-forms are prone to become distributed all over the disk       > I'd avoid using any of their formats. Loonix may act quite similar...       >       > Even we are now forced to use UEFI and the FAT32 boot code, I'd have all       > my OS including loader stages as a block of consecutive sectors on disk.       > So all I need to know is the LBA-Number of the start sector then.       > This needs a certain (stupid easy) tool to "format" such an OS either       > manually or full featured autonome.              IIRC you load your OS image to 0x7e00 although you might move it later.       Either way, does it always run from a specific location (in which case       you won't need any fixups)?              I cannot load the image to a fixed location as I want to be able to       adapt to different machine configs so it looks as though I have no       choice but to relocate it after reading the file into memory.                     --       James Harris              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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