Hello,
I wrote:
> * When doing 'chainloader' command, the all disk devices cannot use via
> 'dev.c',
> because of doing 'grub_loader_unload_func' on 'grub_loader_set'.
> I think it is disirable to do 'grub_loader_unload_func' on
'grub_*_boot'.
Okuji-san wrote:
> Could you elaborate on why this is bad?
At first, excuse me. 'grub_loader_unload_func' is not bad.
Please see 'grub-1.96/loader/i386/pc/chainloader.c' and
'grub-1.96/kern/loader.c'
When we execute the 'boot' command, process the 'grub_loader_boot()'
--------------------------------------------------
grub_loader_boot (void)
{
if (! grub_loader_loaded)
return grub_error (GRUB_ERR_NO_KERNEL, "no loaded kernel");
if (grub_loader_noreturn)
grub_machine_fini (); <--- includes 'grub_biosdisk_fini()'
return (grub_loader_boot_func) (); <--- call the
'grub_chainloader_boot()'
}
--------------------------------------------------
And 'grub_loader_boot()' passes to 'grub_chainloader_boot()'
--------------------------------------------------
grub_chainloader_boot (void)
{
grub_device_t dev;
int drive = -1;
void *part_addr = 0;
/* Open the root device. */
dev = grub_device_open (0); <--- Ouch! Cannot open device!
if (dev)
{
grub_disk_t disk = dev->disk;
--------------------------------------------------
I experience this trouble during my work,
so 'grub_chainloader_boot()' doesn't open the root device in PC-9800 patch.
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