Jim Cromie
2005-May-17 17:33 UTC
[syslinux] chain / memdisk / mboot of memtest86, SBM loader.bin, ISO image
hpa etal,
Im trying to get PIRT running on an SBC which has no CD-ROM drive.
(an 8 MB ISO which demo's RTAI - RealTime Application Interface, on
linux patched with Adeos)
(BTW, PIRT uses isolinux)
anyway, Im trying to use pxelinux to chainload / memdisk / mboot it,
Im having no success. Ive also tried booting memtest86, which I can boot
on my laptop using grub, ie
title memtest
root (hd0,1)
kernel /boot/memtest86.img
boot
but Im unable to morph it into a form that works for pxelinux.
cpldr.bin: x86 boot sector
memtest86+-1.26: x86 boot sector
Ive taken a 'shoot in the dark, with a sawed-off shotgun' approach.
Its not gotten me a whole lot of insight.
If you can help me thru this, I'll reduce it to something
hopefully suitable for syslinux documentation / examples
tia
jimc
SERIAL 0 19200
CONSOLE 0
DEFAULT com32/modules/menu.c32
PROMPT 0
TIMEOUT 200
IPAPPEND 0
MENU TITLE RoboTruck Boot Menu
# breaks menu boot !
# APPEND console=ttyS0,19200n81 root=/dev/hda1
LABEL 1 PIRT-16
MENU LABEL ^1. PIRT-16 memdisk
KERNEL memdisk
APPEND initrd=pirt.img
LABEL i PIRT-16
MENU LABEL ^i. PIRT-16 memdisk
KERNEL memdisk
APPEND initrd=pirtiso.img
LABEL 2 PIRT-16
MENU LABEL ^2. PIRT-16 chain long
KERNEL com32/modules/chain.c32 pirt.img
LABEL 3 PIRT-16
MENU LABEL ^3. PIRT-16 chain
KERNEL chain.c32 pirt.img
LABEL 4 memtest memdisk
MENU LABEL ^4. memtest86 memdisk
KERNEL memtest86.img
LABEL 5 memtest memdisk
MENU LABEL ^5. memtest86 memdisk
KERNEL memdisk
APPEND initrd=memtest86.img
LABEL 6 memtest memdisk
MENU LABEL ^6. memtest86.img memdisk
KERNEL chain.c32
APPEND initrd=memtest86.img
LABEL 7 memtest chain
MENU LABEL ^7. memtest86.img chain long
KERNEL com32/modules/chain.c32
APPEND initrd=memtest86.img
LABEL 8 memdisk SBM
MENU LABEL ^8. chain SBM
KERNEL memdisk
APPEND initrd=loader.bin
LABEL S SBM
MENU LABEL ^s. SBM
KERNEL /boot/loader.bin
APPEND theme-us
LABEL T chain SBM
MENU LABEL ^t. SBM
KERNEL /boot/cpldr.bin
APPEND theme-us
LABEL U memdisk SBM
MENU LABEL ^u. memdisk SBM
KERNEL memdisk
APPEND initrd=cpldr.bin
LABEL M mboot SBM
MENU LABEL ^m. mboot
KERNEL com32/modules/mboot.c32
APPEND memtest86.img
LABEL n mboot SBM
MENU LABEL ^n. mboot
KERNEL com32/modules/mboot.c32
APPEND loader.bin
LABEL H 2.6.12-rc4-mm2-soekris-v1
MENU LABEL ^h. 2.6.12-rc4-mm2-soekris-v1
KERNEL vmlinuz.pirt
APPEND console=ttyS0,19200n81 root=/dev/nfs
nfsroot=192.168.42.1:/nfshost/pirt-16
nfsaddrs=192.168.42.100:192.168.42.1:192.168.42.1:255.255.255.0:soekris:eth0
panic=5
I chose 1,
Loading memdisk....
Could not find ramdisk image: pirt.img
boot: 2
.
Usage: chain.c32 (hd|fd)# [partition]
boot: 3
.
Usage: chain.c32 (hd|fd)# [partition]
boot: 4
Loading memtest86.img.....Ready.
this one appears to run, ie it hangs..
memtest86 normally writes to screen, using some curses-like interface.
this is plausible explanation why I cant see anything on my serial console.
I removed CONSOLE 0, got double chars, but nothing more.
after reboot, I chose 5,
Loading memdisk....
Loading memtest86.img....
Ready.
MEMDISK 3.08 3.08-pre11 Copyright 2001-2005 H. Peter Anvin
e820: 0000000000000000 000000000009fc00 1
e820: 000000000009fc00 0000000000000400 2
e820: 00000000000f0000 0000000000010000 2
e820: 0000000000100000 0000000007f00000 1
e820: 00000000fff00000 0000000000100000 2
Ramdisk at 0x07fcc000, length 0x00013fc4
command line: initrd=memtest86.img BOOT_IMAGE=memdisk memtest memdisk
MEMDISK: Image has fractional end sector
Disk is hard disk, 79 K, C/H/S = 159/1/1
Total size needed = 1904 bytes, allocating 2K
Old dos memory at 0x9f800 (map says 0x9fc00), loading at 0x9f000
1588: 0xffff 15E801: 0x3c00 0x06fc
INT 13 08: Success, count = 1, BPT = 0000:0000
old: int13 = f00023c0 int15 = f000509e
new: int13 = 9f000008 int15 = 9f000286
Loading boot sector... booting...
[01;<8H
chose m,
COM32 Multiboot loader v0.1. Copyright (C) 2005 Tim Deegan.
Kernel:
memtest86.img chain SBM
Loading memtest86.img..
Fatal: not a multiboot kernel.
boot:
Chose i.
Loading memdisk....
Loading
pirtiso.img.....................................................................................................................................
Ready.
MEMDISK 3.08 3.08-pre11 Copyright 2001-2005 H. Peter Anvin
e820: 0000000000000000 000000000009fc00 1
e820: 000000000009fc00 0000000000000400 2
e820: 00000000000f0000 0000000000010000 2
e820: 0000000000100000 0000000007f00000 1
e820: 00000000fff00000 0000000000100000 2
Ramdisk at 0x077b4000, length 0x0082c000
command line: initrd=pirtiso.img BOOT_IMAGE=memdisk PIRT-16
Disk is hard disk, 8368 K, C/H/S = 16736/1/1
Total size needed = 1895 bytes, allocating 2K
Old dos memory at 0x9f800 (map says 0x9fc00), loading at 0x9f000
1588: 0xffff 15E801: 0x3c00 0x067b
INT 13 08: Success, count = 1, BPT = 0000:0000
old: int13 = f00023c0 int15 = f000509e
new: int13 = 9f000008 int15 = 9f000286
Loading boot sector... booting...
[01;<8H
.
Could not find kernel image: /boot/cpldr.bin
boot:
.
Loading memdisk....
Could not find ramdisk image: loader.bin
boot: 7
.
Cannot read Master Boot Record
boot:
.
Cannot read Master Boot Record
boot: 6
.
Cannot read Master Boot Record
boot:
.
Jim Cromie
2005-May-17 17:47 UTC
[syslinux] chain / memdisk / mboot of memtest86, SBM loader.bin, ISO image
sorry for self-reply, but heres links to lower the barrier, and perhaps get you trying it. Smart Boot Manager http://btmgr.webframe.org/index.php3?body=download.html PIRT - RTAI LiveCD http://issaris.homelinux.org/~takis/projects/rtai/livecd/ and, even though its quite broken, my pxelinux.cfg/default -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: default URL: <http://www.zytor.com/pipermail/syslinux/attachments/20050517/f8d8b89d/attachment.ksh>