cvs commit: src/sys/boot/i386/cdboot cdboot.s

[John Baldwin]

jhb         2003/12/11 14:42:50 PST

  FreeBSD src repository

  Modified files:
    sys/boot/i386/cdboot cdboot.s 
  Log:
  - Change the lookup() function to report success or failure using the carry
    flag rather than explicitly halting if a lookup failed.
  - Add a loop around the call to lookup() to traverse an array of
    nul-terminated strings for possible paths to the boot loader.  A double
    nul character denotes the end of the list.
  - Add a new message to say that the boot failed if all of the path lookups
    for a boot loader file failed.
  - Add '/boot/loader' as a second boot path.  If you build an ISO using
    risky options to mkisofs such as -U then the loader will be called
    '/boot/loader' rather than '/BOOT/LOADER;0'.  This allows cdboot to work
    with such risky ISO images.
  - Bump version to 1.2 to denote added functionality.
  
  The basic idea as well as some of the code were provided by the submitter,
  but I added some extra code to use a loop rather than hard-code just 2
  possible paths.
  
  PR:             misc/43543
  Submitted by:   kientzle
  MFC after:      1 week
  
  Revision  Changes    Path
  1.10      +32 -8     src/sys/boot/i386/cdboot/cdboot.s