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fioricet NT OS Loader + Linux mini-HOWTO Bernd Reichert, v1.11, 2 September 199 fioricet 1. Abstract This document describes the use of the Windows NT boot loader to start Linux. T fioricet is procedures have been tested with Windows NT 4.0 WS and Linux 2.0. 2. How does the NT OS Loa fioricet er work The NT OS loader likes to have the boot sector from the other operating systems availab fioricet e as a file. It reads this file and starts the operating system selected, i.e. either Windows NT fioricet in different Modes or any other OS. 3. Tips on how to install Windows NT and Linux on the same fioricet System 3.1. Windows NT installation Try to install Windows NT first. If you want to use NTFS f fioricet r your Windows NT-partition, keep in mind, that the todays production version of Linux cannot a fioricet cess NTFS partitions. An alpha driver that can read NTFS-Partitions is available at http://www. fioricet nformatik.hu- berlin.de/~loewis/ntfs. You may create a separate FAT-Partition for data exchang fioricet or you have to use DOS-formatted floppies. 3.2. Partitioning Another Mini-howto recommends no fioricet to use NTs "Disk Administartor" to create the Linux swap- and root-partitions. It is sufficient fioricet to see the free space there. I also recommend to use linux's fdisk later. 3.3. Linux installat fioricet on Now boot linux from diskettes, create the swap and root-partition. Fdisk assumes the ntfs-pa fioricet tition to be a HPFS-partition. This is normal. Boot again from diskettes and install Linux as fioricet ou like. Just in case the installation procedure suggests that you could mount the HPFS partiti fioricet n which it has found: Ignore it. 3.4. Lilo When you come to the Lilo-Section, specify your Lin fioricet x-root-partition as your boot device because the Master Boot Record (MBR) of your harddisk is o fioricet ned by Windows NT. This means that the root-entry and the boot-entry in your /etc/lilo.conf have fioricet the same value. If you have a IDE-harddisk and your Linux-partition is the second partition, y fioricet ur boot-entry in /etc/lilo.conf looks like: boot=/dev/hda2 If you have two disks and your fioricet inux resides on the first partition of your second disk, your boot-entry in /etc/lilo.conf looks fioricet like: boot=/dev/hdb1 Run lilo with a kernel that matches your system. Check the kernel by fioricet booting from diskette first if you are not sure. If you cannot boot Windows NT now, you have a fioricet roblem. I hope you have created a repair-disk recently. 4. Bootpart There is a NT-programm c fioricet lled bootpart written by G. Vollant that can do the jobs from the next two points for you. Bootp fioricet rt is available at http://ourworld.compuserve.com/homepages/gvollant/bootpart.htm. If you want fioricet o know how things are working together, use the procedures described in point 5 and 6. 5. The fioricet inux part of the work You have to boot from diskettes until the NT-part is fixed. Now you have fioricet o peel the bootsector from your Linux-root-Partition. With /dev/hda2 as your linux-partition, th fioricet dd-command is: # dd if=/dev/hda2 of=/bootsect.lnx bs=512 count=1 There is something wrong fioricet if your bootsect.lnx has more than 512 bytes. Now copy the file bootsect.lnx to a DOS-formated f fioricet oppy if this is your way to transfer files to the NTFS-Windows-partition. You can copy it with fioricet # mcopy /bootsect.lnx a: or with # mount -t msdos /dev/fd0 /mnt # copy /bootsect.lnx /mnt fioricet # umount /mnt 6. The Windows NT part of the work Copy the file from the diskette to C:\boots fioricet ct.lnx. I don't tell you how to do that. What lilo.conf is for linux is c:\boot.ini for Window fioricet NT. Remove the, system- and the read-only-attribute before you can modify it with: C: fioricet trib -s -r c:oot.ini Now change the file boot.ini with an editor, notepad for example, as fol fioricet ows: [boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(1)WINNT fioricet [operating systems] multi(0)disk(0)rdisk(0)partition(1)WINNT="Windows NT Workstation fioricet ... multi(0)disk(0)rdisk(0)partition(1)WINNT="Windows NT Workstation ... C:BOOTSECT fioricet LNX="Linux" Only the last line has been added in this example. Restore the attributes after yo fioricet have saved boot.ini with: C:ttrib +s +r c:oot.ini After a shutdown of your Windows NT fioricet and a restart your should see the following: OS Loader V4.00 Please select the operating s fioricet stem to start: Windows NT Workstation Version 4.0 Windows NT Workstation Version 4.0 [VGA m fioricet de] Linux Select Linux and see LILO loading zImage .... 7. Play it again Sam A new copy fioricet of bootsect.lnx must be transfererd to C:BOOTSECT.LNX evry time the bootsector of your linux-pa fioricet tition has been modified. This happens for example when you install a new kernel with lilo. As fioricet you can see such a system in not ideal for testing experimental kernels. 8. Troubleshooting I fioricet things do not work as expected, check bootability with a floppy disk. With /dev/hdb1 as your Linux-partition, your /etc/lilo.conf has the following entries: root=/dev/hdb1 boot=/dev/fd0 Run lilo with a diskette inserted. Now try to boot from the diskette. If your Linux on /dev/hdb1 can't be started, the NT OS loader will also fail to start it. If you see a lot of 01 01 01 01, your root- disk is not accessible. Check whether all your disks are known by the bios. If the floppy boots your Linux partition, you can peel of your b
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