search for: cb_getcwd

...etc. > > It's these utility functions that no longer work. Calls to those functions only happen if the gfxboot core (bincode.asm) requests them. cb_status, cb_fopen and cb_fread are only called from gfxboot core (prim_findfile) if the requested file is not part of the bootlogo archive. cb_getcwd is deprecated, cb_chdir and cb_mount were never supported on upstream syslinux. The only function left is cb_readsector which seems optional in gfxboot core. There should be no loss of functionality if required files are part of the bootlogo archive. Sebastian

Ok, here is the first try to turn the gfxboot wrapper into a com32 module. I had to extend the interface to the gfxboot core a bit to get it working. So it works only with latest gfxboot from git://gitorious.org/gfxboot/gfxboot.git Steffen -------------- next part -------------- A non-text attachment was scrubbed... Name: gfxboot_c32.diff.gz Type: application/x-gzip Size: 7220 bytes Desc: URL:

...ing changes since commit aae5483d9ebd6f091aa740108ad7f2958303931f: Steffen Winterfeldt (1): gfxboot.c32 are available in the git repository at: git://repo.or.cz/syslinux/sherbszt.git gfxboot32 Sebastian Herbszt (4): gfxboot: use $(NASM) and $(OBJCOPY) gfxboot: fix typo in cb_getcwd - wrong function number gfxboot: accept plain boot logo files gfxboot: fix loading of LABELs with non KERNEL or LINUX commands com32/gfxboot/Makefile | 4 ++-- com32/gfxboot/gfxboot.c | 11 +++++++++-- com32/gfxboot/realmode_callback.asm | 2 +- 3 file...

Matt Fleming wrote: > On Wed, 03 Jul, at 03:02:19PM, Andreas Heinlein wrote: >> I had to add at least one boot entry to get a working config, so I >> ended up with this isolinux.cfg: >> >> label live >> menu label ^Try Ubuntu without installing >> kernel /casper/vmlinuz >> append file=/cdrom/preseed/ubuntu.seed boot=casper >>

...ity functions that no longer work. > > Calls to those functions only happen if the gfxboot core (bincode.asm) > requests them. > cb_status, cb_fopen and cb_fread are only called from gfxboot core > (prim_findfile) if > the requested file is not part of the bootlogo archive. > cb_getcwd is deprecated, cb_chdir and cb_mount were never supported on > upstream syslinux. > The only function left is cb_readsector which seems optional in > gfxboot core. > > There should be no loss of functionality if required files are part of > the bootlogo archive. > > Sebas...

...t + + cmp eax,1 + jz exit + + cmp eax,2 + jz boot + + jmp input + +boot: + call far [gfx_bc_done] + mov ax,cs + mov es,ax + mov bx,command_line + mov ax,3 + int 22h +exit: + call far [gfx_bc_done] +error: + ret + +cb_table dw cb_status ; 0 + dw cb_fopen ; 1 + dw cb_fread ; 2 + dw cb_getcwd ; 3 + dw cb_chdir ; 4 + dw cb_readsector ; 5 +cb_len equ ($-cb_table)/2 + +gfx_cb: + push cs + pop ds + + cmp al,cb_len + jae gfx_cb_error + + movzx bx,al + add bx,bx + call word [bx+cb_table] + jmp gfx_cb_end +gfx_cb_error: + mov al,0ffh +gfx_cb_end: + retf + +; Return status info +...

...t + + cmp eax,1 + jz exit + + cmp eax,2 + jz boot + + jmp input + +boot: + call far [gfx_bc_done] + mov ax,cs + mov es,ax + mov bx,command_line + mov ax,3 + int 22h +exit: + call far [gfx_bc_done] +error: + ret + +cb_table dw cb_status ; 0 + dw cb_fopen ; 1 + dw cb_fread ; 2 + dw cb_getcwd ; 3 + dw cb_chdir ; 4 + dw cb_readsector ; 5 +cb_len equ ($-cb_table)/2 + +gfx_cb: + push cs + pop ds + + cmp al,cb_len + jae gfx_cb_error + + movzx bx,al + add bx,bx + call word [bx+cb_table] + jmp gfx_cb_end +gfx_cb_error: + mov al,0ffh +gfx_cb_end: + retf + +; Return status info +...