[Bug 1507002] Re: "boot error" due to gcc v5 transition

[TJ]

I've tested with the upstream ALIGN fix and images that previously failed with "Boot error" now boot correctly
The upstream fix is:

commit e5f2b577ded109291c9632dacb6eaa621d8a59fe
Author: Sylvain Gault <sylvain.gault at gmail.com>
Date:   Tue Sep 29 02:38:25 2015 +0200

    bios: Fix alignment change with gcc 5
    
    The section aligment specified in the ld scripts have to be greater or
    equal to those in the .o files generated by gcc.
    
    Signed-off-by: Sylvain Gault <sylvain.gault at gmail.com>
    Tested-by: poma <pomidorabelisima at gmail.com>
    Signed-off-by: Paulo Alcantara <pcacjr at zytor.com>


** Changed in: syslinux (Ubuntu)
     Assignee: TJ (tj) => (unassigned)

** Changed in: syslinux (Ubuntu)
       Status: In Progress => Triaged

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https://bugs.launchpad.net/bugs/1507002

Title:
  "boot error" due to gcc v5 transition

Status in syslinux package in Ubuntu:
  Triaged

Bug description:
  Today I upgraded to Ubuntu 15.10 (wily) from vivid and creating boot
  disks (USB, vfat) stopped working.

  I tried my best to find what's the problem, but I couldn't identify
  it. It looks like it's related to LP: #398241 (or the debian bug
  referred there)

  Essentially, I did

  1. create empty USB disk
  2. format as vfat (mkfs -t ... -- -F32 -n 'label')
  3. syslinux --install path/to/image -t 512
  4. boot a computer with it
  5. SYSLINUX 6.03 ... "boot error" <-- is displayed

  I then downgraded to syslinux 3:6.03+dfsg-5ubuntu1, did the same
  thing, and it worked again.

  I believe this is related to ldlinux.sys, ldlinux.c32, linux.c32,
  menu.c32,  or libutil.c32, since at least the machine boots to
  syslinux, it simply does not proceed to display my menu.

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