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

Wed Jan 30 18:22:43 CET 2013

On 30/01/2013 11:54, Maurice Batey wrote:
+> On Sun, 20 Jan 2013 14:39:26 +0000, James Kerr wrote:
+>
+>> Grub2 created a boot menu that enables me to
+>> successfully boot the pre-existing Mageia2 installation.
+>
+>     James, does the Mageia2 installation have GRUB-Legacy in the PBR?
+
+No. Mageia 2's Grub boot-loader was installed to the MBR of the boot disk.
+
+>
+>     What is the GRUB2 boot stanza that boots Mageia2?
+
+This is the stanza in /boot/grub2/grub.cfg for Mageia 2:
+
+
+menuentry 'linux (on /dev/sdb1)' --class gnu-linux --class gnu --class 
+os $menuentry_id_option 
+'osprober-gnulinux-/boot/vmlinuz--20599988-d027-4cd2-80c4-b834e1013a80' {
+		insmod part_msdos
+		insmod ext2
+		set root='hd1,msdos1'
+		if [ x$feature_platform_search_hint = xy ]; then
+		  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 
+--hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 
+20599988-d027-4cd2-80c4-b834e1013a80
+		else
+		  search --no-floppy --fs-uuid --set=root 
+20599988-d027-4cd2-80c4-b834e1013a80
+		fi
+		linux /boot/vmlinuz BOOT_IMAGE=linux root=LABEL=mga-root splash quiet 
+nokmsboot resume=UUID=a3dabcb9-c43e-4035-8bbe-576aa9c5573b vga=788
+		initrd /boot/initrd.img
+
+
+I've attached grub.cfg, in case it's of some help.
+
+os-prober creates a boot menu which lists the first entry from Grub's 
+menu.lst on the top-level Grub2 boot menu, even when the first entry in 
+menu.lst is not the default. As a result, in order to reach the menu 
+entry for Mageia 2, I have to access the second level "Advanced options" 
+menu.
+
+On this system /dev/sdb is the boot disk.
+
+Jim
+
+
+
+-------------- next part --------------
+#
+# DO NOT EDIT THIS FILE
+#
+# It is automatically generated by grub2-mkconfig using templates
+# from /etc/grub.d and settings from /etc/default/grub
+#
+
+### BEGIN /etc/grub.d/00_header ###
+if [ -s $prefix/grubenv ]; then
+  load_env
+fi
+set default="0"
+
+if [ x"${feature_menuentry_id}" = xy ]; then
+  menuentry_id_option="--id"
+else
+  menuentry_id_option=""
+fi
+
+export menuentry_id_option
+
+if [ "${prev_saved_entry}" ]; then
+  set saved_entry="${prev_saved_entry}"
+  save_env saved_entry
+  set prev_saved_entry=
+  save_env prev_saved_entry
+  set boot_once=true
+fi
+
+function savedefault {
+  if [ -z "${boot_once}" ]; then
+    saved_entry="${chosen}"
+    save_env saved_entry
+  fi
+}
+
+function load_video {
+  if [ x$feature_all_video_module = xy ]; then
+    insmod all_video
+  else
+    insmod efi_gop
+    insmod efi_uga
+    insmod ieee1275_fb
+    insmod vbe
+    insmod vga
+    insmod video_bochs
+    insmod video_cirrus
+  fi
+}
+
+if loadfont unicode ; then
+  set gfxmode=1024x768x32
+  load_video
+  insmod gfxterm
+  set locale_dir=$prefix/locale
+  set lang=en_GB
+  insmod gettext
+fi
+terminal_output gfxterm
+insmod part_msdos
+insmod ext2
+set root='hd1,msdos8'
+if [ x$feature_platform_search_hint = xy ]; then
+  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos8 --hint-efi=hd1,msdos8 --hint-baremetal=ahci1,msdos8  f64c1cea-d7d7-44f6-8c3f-90d4dc886511
+else
+  search --no-floppy --fs-uuid --set=root f64c1cea-d7d7-44f6-8c3f-90d4dc886511
+fi
+insmod gfxmenu
+insmod png
+set theme=($root)/boot/grub2/themes/maggy/theme.txt
+export theme
+set timeout=5
+### END /etc/grub.d/00_header ###
+
+### BEGIN /etc/grub.d/10_linux ###
+menuentry 'Mageia GNU/Linux' --class mageia --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-f64c1cea-d7d7-44f6-8c3f-90d4dc886511' {
+	set gfxpayload=text
+	insmod gzio
+	insmod part_msdos
+	insmod ext2
+	set root='hd1,msdos8'
+	if [ x$feature_platform_search_hint = xy ]; then
+	  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos8 --hint-efi=hd1,msdos8 --hint-baremetal=ahci1,msdos8  f64c1cea-d7d7-44f6-8c3f-90d4dc886511
+	else
+	  search --no-floppy --fs-uuid --set=root f64c1cea-d7d7-44f6-8c3f-90d4dc886511
+	fi
+	echo	'Loading Linux desktop ...'
+	linux	/boot/vmlinuz-desktop root=UUID=f64c1cea-d7d7-44f6-8c3f-90d4dc886511 ro  splash
+	echo	'Loading initial ramdisk ...'
+	initrd	/boot/initrd-desktop.img
+}
+submenu 'Advanced options for Mageia GNU/Linux' $menuentry_id_option 'gnulinux-advanced-f64c1cea-d7d7-44f6-8c3f-90d4dc886511' {
+	menuentry 'Mageia GNU/Linux, with Linux desktop' --class mageia --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-desktop-advanced-f64c1cea-d7d7-44f6-8c3f-90d4dc886511' {
+		set gfxpayload=text
+		insmod gzio
+		insmod part_msdos
+		insmod ext2
+		set root='hd1,msdos8'
+		if [ x$feature_platform_search_hint = xy ]; then
+		  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos8 --hint-efi=hd1,msdos8 --hint-baremetal=ahci1,msdos8  f64c1cea-d7d7-44f6-8c3f-90d4dc886511
+		else
+		  search --no-floppy --fs-uuid --set=root f64c1cea-d7d7-44f6-8c3f-90d4dc886511
+		fi
+		echo	'Loading Linux desktop ...'
+		linux	/boot/vmlinuz-desktop root=UUID=f64c1cea-d7d7-44f6-8c3f-90d4dc886511 ro  splash
+		echo	'Loading initial ramdisk ...'
+		initrd	/boot/initrd-desktop.img
+	}
+	menuentry 'Mageia GNU/Linux, with Linux 3.8.0-desktop-0.rc5.1.mga3' --class mageia --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.8.0-desktop-0.rc5.1.mga3-advanced-f64c1cea-d7d7-44f6-8c3f-90d4dc886511' {
+		set gfxpayload=text
+		insmod gzio
+		insmod part_msdos
+		insmod ext2
+		set root='hd1,msdos8'
+		if [ x$feature_platform_search_hint = xy ]; then
+		  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos8 --hint-efi=hd1,msdos8 --hint-baremetal=ahci1,msdos8  f64c1cea-d7d7-44f6-8c3f-90d4dc886511
+		else
+		  search --no-floppy --fs-uuid --set=root f64c1cea-d7d7-44f6-8c3f-90d4dc886511
+		fi
+		echo	'Loading Linux 3.8.0-desktop-0.rc5.1.mga3 ...'
+		linux	/boot/vmlinuz-3.8.0-desktop-0.rc5.1.mga3 root=UUID=f64c1cea-d7d7-44f6-8c3f-90d4dc886511 ro  splash
+		echo	'Loading initial ramdisk ...'
+		initrd	/boot/initrd-3.8.0-desktop-0.rc5.1.mga3.img
+	}
+	menuentry 'Mageia GNU/Linux, with Linux 3.8.0-desktop-0.rc4.1.mga3' --class mageia --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.8.0-desktop-0.rc4.1.mga3-advanced-f64c1cea-d7d7-44f6-8c3f-90d4dc886511' {
+		set gfxpayload=text
+		insmod gzio
+		insmod part_msdos
+		insmod ext2
+		set root='hd1,msdos8'
+		if [ x$feature_platform_search_hint = xy ]; then
+		  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos8 --hint-efi=hd1,msdos8 --hint-baremetal=ahci1,msdos8  f64c1cea-d7d7-44f6-8c3f-90d4dc886511
+		else
+		  search --no-floppy --fs-uuid --set=root f64c1cea-d7d7-44f6-8c3f-90d4dc886511
+		fi
+		echo	'Loading Linux 3.8.0-desktop-0.rc4.1.mga3 ...'
+		linux	/boot/vmlinuz-3.8.0-desktop-0.rc4.1.mga3 root=UUID=f64c1cea-d7d7-44f6-8c3f-90d4dc886511 ro  splash
+		echo	'Loading initial ramdisk ...'
+		initrd	/boot/initrd-3.8.0-desktop-0.rc4.1.mga3.img
+	}
+}
+
+### END /etc/grub.d/10_linux ###
+
+### BEGIN /etc/grub.d/20_linux_xen ###
+
+### END /etc/grub.d/20_linux_xen ###
+
+### BEGIN /etc/grub.d/30_os-prober ###
+menuentry 'Windows 7 (loader) (on /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-chain-9A008B35008B1801' {
+	insmod part_msdos
+	insmod ntfs
+	set root='hd0,msdos1'
+	if [ x$feature_platform_search_hint = xy ]; then
+	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  9A008B35008B1801
+	else
+	  search --no-floppy --fs-uuid --set=root 9A008B35008B1801
+	fi
+	chainloader +1
+}
+menuentry 'Mageia 2 (2)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-20599988-d027-4cd2-80c4-b834e1013a80' {
+	insmod part_msdos
+	insmod ext2
+	set root='hd1,msdos1'
+	if [ x$feature_platform_search_hint = xy ]; then
+	  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  20599988-d027-4cd2-80c4-b834e1013a80
+	else
+	  search --no-floppy --fs-uuid --set=root 20599988-d027-4cd2-80c4-b834e1013a80
+	fi
+	linux /boot/vmlinuz-all BOOT_IMAGE=install_beta_1 root=/dev/ram3 ramdisk_size=32000 vga=791
+	initrd /boot/all.rdz
+}
+submenu 'Advanced options for Mageia 2 (2)' $menuentry_id_option 'osprober-gnulinux-advanced-20599988-d027-4cd2-80c4-b834e1013a80' {
+	menuentry 'install cauldron (on /dev/sdb1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-all--20599988-d027-4cd2-80c4-b834e1013a80' {
+		insmod part_msdos
+		insmod ext2
+		set root='hd1,msdos1'
+		if [ x$feature_platform_search_hint = xy ]; then
+		  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  20599988-d027-4cd2-80c4-b834e1013a80
+		else
+		  search --no-floppy --fs-uuid --set=root 20599988-d027-4cd2-80c4-b834e1013a80
+		fi
+		linux /boot/vmlinuz-all BOOT_IMAGE=install_beta_1 root=/dev/ram3 ramdisk_size=32000 vga=791
+		initrd /boot/all.rdz
+	}
+	menuentry 'linux (on /dev/sdb1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz--20599988-d027-4cd2-80c4-b834e1013a80' {
+		insmod part_msdos
+		insmod ext2
+		set root='hd1,msdos1'
+		if [ x$feature_platform_search_hint = xy ]; then
+		  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  20599988-d027-4cd2-80c4-b834e1013a80
+		else
+		  search --no-floppy --fs-uuid --set=root 20599988-d027-4cd2-80c4-b834e1013a80
+		fi
+		linux /boot/vmlinuz BOOT_IMAGE=linux root=LABEL=mga-root splash quiet nokmsboot resume=UUID=a3dabcb9-c43e-4035-8bbe-576aa9c5573b vga=788
+		initrd /boot/initrd.img
+	}
+	menuentry 'linux-nonfb (on /dev/sdb1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz--20599988-d027-4cd2-80c4-b834e1013a80' {
+		insmod part_msdos
+		insmod ext2
+		set root='hd1,msdos1'
+		if [ x$feature_platform_search_hint = xy ]; then
+		  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  20599988-d027-4cd2-80c4-b834e1013a80
+		else
+		  search --no-floppy --fs-uuid --set=root 20599988-d027-4cd2-80c4-b834e1013a80
+		fi
+		linux /boot/vmlinuz BOOT_IMAGE=linux-nonfb root=LABEL=mga-root nokmsboot resume=UUID=a3dabcb9-c43e-4035-8bbe-576aa9c5573b
+		initrd /boot/initrd.img
+	}
+	menuentry 'failsafe (on /dev/sdb1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz--20599988-d027-4cd2-80c4-b834e1013a80' {
+		insmod part_msdos
+		insmod ext2
+		set root='hd1,msdos1'
+		if [ x$feature_platform_search_hint = xy ]; then
+		  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  20599988-d027-4cd2-80c4-b834e1013a80
+		else
+		  search --no-floppy --fs-uuid --set=root 20599988-d027-4cd2-80c4-b834e1013a80
+		fi
+		linux /boot/vmlinuz BOOT_IMAGE=failsafe root=LABEL=mga-root failsafe
+		initrd /boot/initrd.img
+	}
+	menuentry 'desktop 3.3.6-2.mga2 (on /dev/sdb1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-3.3.6-desktop-2.mga2--20599988-d027-4cd2-80c4-b834e1013a80' {
+		insmod part_msdos
+		insmod ext2
+		set root='hd1,msdos1'
+		if [ x$feature_platform_search_hint = xy ]; then
+		  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  20599988-d027-4cd2-80c4-b834e1013a80
+		else
+		  search --no-floppy --fs-uuid --set=root 20599988-d027-4cd2-80c4-b834e1013a80
+		fi
+		linux /boot/vmlinuz-3.3.6-desktop-2.mga2 BOOT_IMAGE=desktop_3.3.6-2.mga2 root=LABEL=mga-root splash quiet nokmsboot resume=UUID=a3dabcb9-c43e-4035-8bbe-576aa9c5573b vga=788
+		initrd /boot/initrd-3.3.6-desktop-2.mga2.img
+	}
+	menuentry 'desktop 3.3.8-2.mga2 (on /dev/sdb1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-3.3.8-desktop-2.mga2--20599988-d027-4cd2-80c4-b834e1013a80' {
+		insmod part_msdos
+		insmod ext2
+		set root='hd1,msdos1'
+		if [ x$feature_platform_search_hint = xy ]; then
+		  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  20599988-d027-4cd2-80c4-b834e1013a80
+		else
+		  search --no-floppy --fs-uuid --set=root 20599988-d027-4cd2-80c4-b834e1013a80
+		fi
+		linux /boot/vmlinuz-3.3.8-desktop-2.mga2 BOOT_IMAGE=desktop_3.3.8-2.mga2 root=LABEL=mga-root splash quiet nokmsboot resume=UUID=a3dabcb9-c43e-4035-8bbe-576aa9c5573b vga=788
+		initrd /boot/initrd-3.3.8-desktop-2.mga2.img
+	}
+	menuentry 'desktop 3.4.24-3.mga2 (on /dev/sdb1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-3.4.24-desktop-3.mga2--20599988-d027-4cd2-80c4-b834e1013a80' {
+		insmod part_msdos
+		insmod ext2
+		set root='hd1,msdos1'
+		if [ x$feature_platform_search_hint = xy ]; then
+		  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  20599988-d027-4cd2-80c4-b834e1013a80
+		else
+		  search --no-floppy --fs-uuid --set=root 20599988-d027-4cd2-80c4-b834e1013a80
+		fi
+		linux /boot/vmlinuz-3.4.24-desktop-3.mga2 BOOT_IMAGE=desktop_3.4.24-3.mga2 root=LABEL=mga-root splash quiet nokmsboot resume=UUID=a3dabcb9-c43e-4035-8bbe-576aa9c5573b vga=788
+		initrd /boot/initrd-3.4.24-desktop-3.mga2.img
+	}
+}
+
+### END /etc/grub.d/30_os-prober ###
+
+### BEGIN /etc/grub.d/40_custom ###
+# This file provides an easy way to add custom menu entries.  Simply type the
+# menu entries you want to add after this comment.  Be careful not to change
+# the 'exec tail' line above.
+### END /etc/grub.d/40_custom ###
+
+### BEGIN /etc/grub.d/41_custom ###
+if [ -f  ${config_directory}/custom.cfg ]; then
+  source ${config_directory}/custom.cfg
+elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
+  source $prefix/custom.cfg;
+fi
+### END /etc/grub.d/41_custom ###
+
+### BEGIN /etc/grub.d/90_persistent ###
+### END /etc/grub.d/90_persistent ###
+