what does chainloader +1 mean/do? ps nice how to!
Rich On 15/03/2008, substation <[EMAIL PROTECTED]> wrote: > > Hi people, > > RE: UBUNTU/DEBIAN MULTI-BOOT SATA SYSTEMS - ISSUE FIX > > For anyone who is interested here is a great way of being able to > multi-boot Ubuntu Gutsy/Debian Etch with Windows/Linux as often and as many > times as you need. No more changing cables! > > This works with Linux acting as a master O/S for any Linux Distribution or > Windows operating system. This is because we are going to modify GRUB. > The windows boot manager is not very flexible! > > This method or approach can work for unlimited SATA disk drives containing > unlimited O/S systems and storage drives - you could even use an ESATA disk > - without the risk of killing your windows MBR without the risk of disk > failure killing your system - pretty much risk free as long as you follow > the how to carefully; but mistakes can happen. S yes, this guide is without > warranty and works on a SATA based hard disk system only :-) > > Note: For multiple IDE disks you need to reconfigure the master/slave > drive settings, whereas for a single disk multi-boot system it is simple > enough to simply install XP first then add Ubuntu using a manual partition > setup [there is a guide in Ubuntu's community docs for this]. For this > how-to i am NOT using a RAID ARRAY and treating each disk as a separate disk > drive for a distinct O/S. If you did use RAID, then you need to treat your > disk like a rather large EIDE setup with partitions. > > These instructions will create 3 separate operating systems and a single > hard disk for additional shared storage. Linux will always be disk number 1 > and for simplicity - my cross-O/S storage drive is formatted to FAT32 - if > you want to use NTFS then get the relevant disk tools for your linux distro! > > > Let's begin: > > 1] If you need to install your O/S jump to point 1, otherwise skip to > point 2. > > 1a] If you need to install an operating system, unplug all your disk > drives. Add a single drie to header/channel 1 and install on a > one-at-a-time. > 2a] Repeat the above for each and every O/S > > 2] Back-up your data - The Windows MBR is very touchy. > > Then take your existing operating system disks and attach them in the > following order to your sata headers on your motherboard: > > HEADER/Channel > 1 UBUNTU > 2 WINXP > 3 WINXP > 4 STORAGE DRIVE > > I find it easier to add the storage drive at the end, but you may want to > run it as disk 2. > All windows computers will see each others hard-disk whilst linux can see > them all. > All operating systems are standalone and fully functional. > > 3] Verify your BIOS can see all the disks and ensure you have them booting > in the correct order > 4] Boot to UBUNTU, open terminal and either: > > $ sudo vi /boot/grub/menu.lst > or > $ sudo gedit /boot/grub/menu.lst > > Create a back-up of this file immediately then start editing. > > 4] Scroll down to the bottom of this file and look for the final line - > i.e. > > ### END DEBIAN AUTOMATIC KERNELS LIST > > Below that line type the following [use a tab to separate the command word > and the statement]: > > title Other operating systems: > root > > 5] Now lets add your O/S. Your file should now look like this: > > ### END DEBIAN AUTOMATIC KERNELS LIST > title Other operating systems: > root > > Below this type the following replacing XXX with your O/S descriptions [use > a tab to separate the command word and the statement]: > > > title XXXXXXXXXXXXXXX XXXXXXX XXXXXXXX > root (hd1,0) > makeactive > chainloader +1 > map (hd0) (hd1) (hd2) > map (hd1) (hd0) (hd2) > > > title XXXXXXXXXXXXXXX XXXXXXX XXXXXXXX > root (hd2,0) > makeactive > chainloader +1 > map (hd0) (hd1) (hd2) > map (hd2) (hd1) (hd2) > > > > Now, let's adjust the timeout for something more human. Look for the > following line at the top of the menu.lst file: > > timeout 3 > > Change the number to something suitable - i.e. 9 to give you a 9 second > breaker. > > Jone done. > Save the file and reboot. Jump to point 6 below. > > =============================== > Notes: > Your edited file could look like this: > > ### END DEBIAN AUTOMATIC KERNELS LIST > title Other operating systems: > root > > title Windows XP, Games > root (hd1,0) > makeactive > chainloader +1 > map (hd0) (hd1) (hd2) > map (hd1) (hd0) (hd2) > > > title Windows 2000 Server > root (hd2,0) > makeactive > chainloader +1 > map (hd0) (hd1) (hd2) > map (hd2) (hd1) (hd2) > > > > What we did: > root (hd2,0) - This line simply references the disk number and the > correct partition. > > > In what we have done, the important part is here: > > map (hd0) (hd1) (hd2) > map (hd2) (hd1) (hd2) > > To fool XP we have created a map of the disks starting with disk drive 0 > [where your first disk is disk 0] > > So fo you need to add more disks, replicate the above template as many > times as required by following the implied logic and adding a new map - > i.e. (hd3), (hd4) etc.... > =============================== > > 6] If all goes well, simply watch GRUB. Hit the escape key when asked and > choose the relevant O/S to use. > > If you have any issues - i.e. a stalled boot [flashing cursor or a grub > error] it is either [a] you made a typo or [b] check your cables. > If you really get stuck, don't force things. Simply switch off, disconnect > all drives except for Ubuntu/Debian > open terminal and try this command: > > $ sudo fdisk -l > This should confirm if Linux can see all the hard disk on your system. > > If the above is correct then re-check your work with > > $ sudo vi /boot/grub/menu.lst > > mistakes can often happen in GEDIT - so use VI [VIM] or NANO etc... > I like VI myself. > > If nothing works at all and you are fed up - then something else must be > at issue, so simply restore your backup menu.lst file , disconnect the > relevant drives and continue as before [no harm done]. > > =============================== > > As i said, this how-to is without warranty - as the Windows MBR is very > touchy!. > Be careful and have fun! > > J. > > > > > > > > > > > > > > > _______________________________________________ > Peterboro mailing list > [email protected] > https://mailman.lug.org.uk/mailman/listinfo/peterboro > -- ***** Richard Forth Forever Living Products Natural Aloe Vera and Bee Hive Products For Better Health or Better Wealth For product recommendations and for information about business opportunities. Please ask me for more information. There is no obligation and no pressure, just take a look at what people all over the world are talking about. *****
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