Annotation of wikisrc/ports/xen/howto-grub.mdwn, revision 1.3
1.1 gdt 1: Stray Grub notes
2: ================
3:
4: Now, the use of NetBSD's normal boot code is recommended. This file
1.2 gdt 5: exists to save stray text about grub. Note that it is far far easier
6: to use the native boot code, and that you probably should not be
7: reading this.
1.1 gdt 8:
1.3 ! gdt 9: Converting from grub to /boot
! 10: -----------------------------
! 11:
! 12: These instructions are provided only to help people using grub, which
! 13: used to be the normal approach.
! 14:
! 15: These instructions were used to convert a system from
! 16: grub to /boot. The system was originally installed in February of
! 17: 2006 with a RAID1 setup and grub to boot Xen 2, and has been updated
! 18: over time. Before these commands, it was running NetBSD 6 i386, Xen
! 19: 4.1 and grub, much like the message linked earlier in the grub
! 20: section.
! 21:
! 22: [[!template id=programlisting text="""
! 23: # Install MBR bootblocks on both disks.
! 24: fdisk -i /dev/rwd0d
! 25: fdisk -i /dev/rwd1d
! 26: # Install NetBSD primary boot loader (/ is FFSv1) into RAID1 components.
! 27: installboot -v /dev/rwd0d /usr/mdec/bootxx_ffsv1
! 28: installboot -v /dev/rwd1d /usr/mdec/bootxx_ffsv1
! 29: # Install secondary boot loader
! 30: cp -p /usr/mdec/boot /
! 31: # Create boot.cfg following earlier guidance:
! 32: menu=Xen:load /netbsd-XEN3PAE_DOM0.gz console=pc;multiboot /xen.gz dom0_mem=512M
! 33: menu=Xen.ok:load /netbsd-XEN3PAE_DOM0.ok.gz console=pc;multiboot /xen.ok.gz dom0_mem=512M
! 34: menu=GENERIC:boot
! 35: menu=GENERIC single-user:boot -s
! 36: menu=GENERIC.ok:boot netbsd.ok
! 37: menu=GENERIC.ok single-user:boot netbsd.ok -s
! 38: menu=Drop to boot prompt:prompt
! 39: default=1
! 40: timeout=30
! 41: """]]
! 42:
1.1 gdt 43: Install
44: -------
45:
46: If you plan to use the `grub` boot loader, when partitioning the disk
47: you have to make the root partition smaller than 512Mb, and formatted
48: as FFSv1 with 8k block/1k fragments. If the partition is larger than
49: this, uses FFSv2 or has different block/fragment sizes, grub may fail
50: to load some files.
1.2 gdt 51:
52: You'll also need `sysutils/grub` from pkgsrc.
53:
54: Grub config
55: -----------
56:
57: #Grub config file for NetBSD/xen. Copy as /grub/menu.lst and run
58: # grub-install /dev/rwd0d (assuming your boot device is wd0).
59: #
60: # The default entry to load will be the first one
61: default=0
62:
63: # boot the default entry after 10s if the user didn't hit keyboard
64: timeout=10
65:
66: # Configure serial port to use as console. Ignore if you'll use VGA only
67: serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1
68:
69: # Let the user select which console to use (serial or VGA), default
70: # to serial after 10s
71: terminal --timeout=10 serial console
72:
73: # An entry for NetBSD/xen, using /netbsd as the domain0 kernel, and serial
74: # console. Domain0 will have 64MB RAM allocated.
75: # Assume NetBSD is installed in the first MBR partition.
76: title Xen 3 / NetBSD (hda0, serial)
77: root(hd0,0)
78: kernel (hd0,a)/xen.gz dom0_mem=65536 com1=115200,8n1
79: module (hd0,a)/netbsd bootdev=wd0a ro console=ttyS0
80:
81: # Same as above, but using VGA console
82: # We can use console=tty0 (Linux syntax) or console=pc (NetBSD syntax)
83: title Xen 3 / NetBSD (hda0, vga)
84: root(hd0,0)
85: kernel (hd0,a)/xen.gz dom0_mem=65536
86: module (hd0,a)/netbsd bootdev=wd0a ro console=tty0
87:
88: # NetBSD/xen using a backup domain0 kernel (in case you installed a
89: # nonworking kernel as /netbsd
90: title Xen 3 / NetBSD (hda0, backup, serial)
91: root(hd0,0)
92: kernel (hd0,a)/xen.gz dom0_mem=65536 com1=115200,8n1
93: module (hd0,a)/netbsd.backup bootdev=wd0a ro console=ttyS0
94: title Xen 3 / NetBSD (hda0, backup, VGA)
95: root(hd0,0)
96: kernel (hd0,a)/xen.gz dom0_mem=65536
97: module (hd0,a)/netbsd.backup bootdev=wd0a ro console=tty0
98:
99: #Load a regular NetBSD/i386 kernel. Can be useful if you end up with a
100: #nonworking /xen.gz
101: title NetBSD 5.1
102: root (hd0,a)
103: kernel --type=netbsd /netbsd-GENERIC
104:
105: #Load the NetBSD bootloader, letting it load the NetBSD/i386 kernel.
106: #May be better than the above, as grub can't pass all required infos
107: #to the NetBSD/i386 kernel (e.g. console, root device, ...)
108: title NetBSD chain
109: root (hd0,0)
110: chainloader +1
111:
112: ## end of grub config file.
113:
114: Install grub with the following command:
115:
116: # grub --no-floppy
117:
118: grub> root (hd0,a)
119: Filesystem type is ffs, partition type 0xa9
120:
121: grub> setup (hd0)
122: Checking if "/boot/grub/stage1" exists... no
123: Checking if "/grub/stage1" exists... yes
124: Checking if "/grub/stage2" exists... yes
125: Checking if "/grub/ffs_stage1_5" exists... yes
126: Running "embed /grub/ffs_stage1_5 (hd0)"... 14 sectors are embedded.
127: succeeded
128: Running "install /grub/stage1 (hd0) (hd0)1+14 p (hd0,0,a)/grub/stage2 /grub/menu.lst"...
129: succeeded
130: Done.
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