This option disables the built-in disk drivers completely.
Passing " nodisk" to gnumach command line will allow the user
to boot the installer with a ramdisk, and rumpdisk should
initialise AHCI controller in userspace.
This is a workaround for the installer for some modern hardware that
the gnumach built-in kernel AHCI driver cannot drive.
It is also useful for testing rumpdisk without kernel drivers.
---
linux/dev/drivers/block/genhd.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/linux/dev/drivers/block/genhd.c b/linux/dev/drivers/block/genhd.c
index 903135c3..eb4801a6 100644
--- a/linux/dev/drivers/block/genhd.c
+++ b/linux/dev/drivers/block/genhd.c
@@ -1054,7 +1054,9 @@ void device_setup(void)
#ifndef MACH
chr_dev_init();
#endif
- blk_dev_init();
+ extern char *kernel_cmdline;
+ if (!strstr(kernel_cmdline, " nodisk"))
+ blk_dev_init();
sti();
#ifdef CONFIG_SCSI
scsi_dev_init();
--
2.30.0
