[Mageia-dev] Grub2 vs. Grub Legacy in M3

Mon Jan 28 21:01:17 CET 2013

On 2013-01-28 19:27 (GMT) Barry Jackson composed:
+
+>>> http://svnweb.mageia.org/packages/cauldron/grub2/current/SOURCES/README.Mageia?view=markup
+> Chainloading into grub2 is not the best way, due to the block lists
+> problem people keep mentioning and complaining about.
+> Grub2 can install it's kernel in the root filesystem which can be booted
+> directly. Installing the grub2 package, whether during install or later
+> automatically builds /boot/grub/i386-pc/core.img and also creates a
+> grub.cfg ready for use.
+> Chanloading is un-necessary since an entry in menu.lst on a legacy
+> system will boot a grub2 Mageia system using:
+
+>    	title Mageia via GRUB 2
+> 	root (hdx,y)
+>    	kernel /boot/grub2/i386-pc/core.img
+
+> ...as explained in the above README.Mageia
+
+> I use a small grub2 partition sda1 as "master".
+> To boot into Mageia grub2 systems I use the grub2 multiboot command:
+
+> 	menuentry 'Mageia-3 multi sda6' {
+> 	search --no-floppy --label --set=root mageia-3
+> 	multiboot /boot/grub2/i386-pc/core.img
+> 	}
+
+> So IMO all of the FUD about "you can't install grub2 to the PBR" is
+> pointless since it's just not necessary.
+
+Maybe not all is FUD. I don't see anything in that README that describes a 
+procedure for an OS/2 or eCS multibooter whose primary bootloader and/or 
+bootloader of choice is IBM Boot Manager, which is prerequisite to booting 
+OS/2 when it is installed to a logical partition (the only place I've ever 
+installed it in the past decade). It can't be told to load a particular file 
+on a partition, only its PBR via the simple process of selecting a partition 
+in its setup utility for inclusion in its boot menu. It works (in effect, 
+chainloads) fine for partitions on which Grub Legacy has been configured with 
+the Grub Legacy setup command. The only options I see for such users is 
+selecting a partition with Grub Legacy configured with menu.lst stanza(s) 
+that include core.img, or configuring IBM BM as a secondary bootloader to a 
+primary bootloader that is not installed on the MBR.
+-- 
+"The wise are known for their understanding, and pleasant
+words are persuasive." Proverbs 16:21 (New Living Translation)
+
+  Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
+
+Felix Miata  ***  http://fm.no-ip.com/
+