Module Name: src
Committed By: isaki
Date: Sat Jan 18 04:42:29 UTC 2020
Added Files:
src/sys/arch/x68k/stand: README
Log Message:
Add a document about this directory.
Reviewed by tsutsui@ on port-x68k.
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/sys/arch/x68k/stand/README
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Added files:
Index: src/sys/arch/x68k/stand/README
diff -u /dev/null src/sys/arch/x68k/stand/README:1.1
--- /dev/null Sat Jan 18 04:42:29 2020
+++ src/sys/arch/x68k/stand/README Sat Jan 18 04:42:29 2020
@@ -0,0 +1,57 @@
+$NetBSD: README,v 1.1 2020/01/18 04:42:29 isaki Exp $
+
+Primary bootloaders:
+ boot_ufs/
+ contains xxboot_ufs.
+ It is placed in ffs's boot area and loads secondary bootloader
+ from its filesystem (ffsv1/v2).
+ This historical primary bootloader uses custom ffs op functions
+ and can recognize Human68k partition table.
+ (See #ifdef SCSI_ADHOC_BOOTPART part for details)
+
+ boot_ustar/
+ is placed in floppy's sector#0 and loads secondary bootloader
+ from subsequent USTARFS.
+
+ xxboot/
+ contains following variants.
+ * cdboot_cd9660
+ is placed in CD and loads secondary bootloader
+ from cd9660 filesystem.
+ * xxboot_ffsv1
+ * xxboot_ffsv2
+ * xxboot_lfsv1
+ * xxboot_lfsv2
+ is placed in each specified filesystem's boot area,
+ and loads secondary bootloader from its filesystem.
+
+ These primary bootloaders use MI ffs/lfs op functions in
+ src/sys/lib/libsa. Currently these don't recognize Human68k
+ partition table.
+
+Secondary bootloaders:
+ boot/
+ boot is placed to / (root directory) and loads the kernel.
+
+ netboot/
+ netboot is the same as /boot except default boot device is
+ nfs using network interface and DHCP.
+ Currently only NE2000 based Neptune-X and Nereid are
+ supported.
+
+Other bootloaders:
+ mboot/
+ mboot is 0-th bootloader.
+ It is placed to sector#0 (as 1024byte/sector) of hard disk
+ as an alternative to genuine boot selector. And loads
+ active partition's +0 sector (sector size depends media)
+ which should have primary bootloader.
+
+ loadbsd/
+ loadbsd.x is a Human68k executable and loads the kernel from
+ Human68k filesystem.
+
+Utility tools:
+ newdisk/
+ newdisk is a utility to create the "disk mark" for X680x0
+ SCSI IPL using mboot bootloader to make a disk bootable.
