Arch Linux

kamelie1706

Member

Registered: 2014-02-19

Posts: 176

[SOLVED] Grub and mounting logic disaligned

hi,

I believe my grub configuration is screwed and I need to put it back on track.
I have 2 partitions mounted when the system is working:
/dev/sdd2 => /boot
/dev/sdb1 => /
I realized that a directory /boot is on /dev/sdb1. I renamed it to boot.old using arch-boot/live distribution, then grub could not boot anymore.

Only /dev/sdb disk seems bootbable.

/boot/grub/grub.cfg

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
insmod part_gpt
insmod part_msdos
if [ -s $prefix/grubenv ]; then
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

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 [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$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  a2077c26-9485-4361-b683-087602c30c8c
else
  search --no-floppy --fs-uuid --set=root a2077c26-9485-4361-b683-087602c30c8c
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=fr_FR
  insmod gettext
fi
terminal_input console
terminal_output gfxterm
if [ x$feature_timeout_style = xy ] ; then
  set timeout_style=menu
  set timeout=5
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
  set timeout=5
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Arch Linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-a2077c26-9485-4361-b683-087602c30c8c' {
	load_video
	set gfxpayload=keep
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='hd3,msdos2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos2 --hint-efi=hd3,msdos2 --hint-baremetal=ahci3,msdos2  cab5dd86-c563-4dfe-b1f1-708eea571206
	else
	  search --no-floppy --fs-uuid --set=root cab5dd86-c563-4dfe-b1f1-708eea571206
	fi
	echo	'Chargement de Linux linux-lts…'
	linux	/vmlinuz-linux-lts root=UUID=a2077c26-9485-4361-b683-087602c30c8c rw  
	echo	'Chargement du disque mémoire initial…'
	initrd  /initramfs-linux-lts.img
}
submenu 'Options avancées pour Arch Linux' $menuentry_id_option 'gnulinux-advanced-a2077c26-9485-4361-b683-087602c30c8c' {
	menuentry 'Arch Linux, avec Linux linux-lts' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-lts-advanced-a2077c26-9485-4361-b683-087602c30c8c' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_msdos
		insmod ext2
		set root='hd3,msdos2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos2 --hint-efi=hd3,msdos2 --hint-baremetal=ahci3,msdos2  cab5dd86-c563-4dfe-b1f1-708eea571206
		else
		  search --no-floppy --fs-uuid --set=root cab5dd86-c563-4dfe-b1f1-708eea571206
		fi
		echo	'Chargement de Linux linux-lts…'
		linux	/vmlinuz-linux-lts root=UUID=a2077c26-9485-4361-b683-087602c30c8c rw  
		echo	'Chargement du disque mémoire initial…'
		initrd  /initramfs-linux-lts.img
	}
	menuentry 'Arch Linux, with Linux linux-lts (fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-lts-fallback-a2077c26-9485-4361-b683-087602c30c8c' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_msdos
		insmod ext2
		set root='hd3,msdos2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos2 --hint-efi=hd3,msdos2 --hint-baremetal=ahci3,msdos2  cab5dd86-c563-4dfe-b1f1-708eea571206
		else
		  search --no-floppy --fs-uuid --set=root cab5dd86-c563-4dfe-b1f1-708eea571206
		fi
		echo	'Chargement de Linux linux-lts…'
		linux	/vmlinuz-linux-lts root=UUID=a2077c26-9485-4361-b683-087602c30c8c rw  
		echo	'Chargement du disque mémoire initial…'
		initrd  /initramfs-linux-lts-fallback.img
	}
	menuentry 'Arch Linux, avec Linux linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-advanced-a2077c26-9485-4361-b683-087602c30c8c' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_msdos
		insmod ext2
		set root='hd3,msdos2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos2 --hint-efi=hd3,msdos2 --hint-baremetal=ahci3,msdos2  cab5dd86-c563-4dfe-b1f1-708eea571206
		else
		  search --no-floppy --fs-uuid --set=root cab5dd86-c563-4dfe-b1f1-708eea571206
		fi
		echo	'Chargement de Linux linux…'
		linux	/vmlinuz-linux root=UUID=a2077c26-9485-4361-b683-087602c30c8c rw  
		echo	'Chargement du disque mémoire initial…'
		initrd  /initramfs-linux.img
	}
	menuentry 'Arch Linux, with Linux linux (fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-fallback-a2077c26-9485-4361-b683-087602c30c8c' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_msdos
		insmod ext2
		set root='hd3,msdos2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos2 --hint-efi=hd3,msdos2 --hint-baremetal=ahci3,msdos2  cab5dd86-c563-4dfe-b1f1-708eea571206
		else
		  search --no-floppy --fs-uuid --set=root cab5dd86-c563-4dfe-b1f1-708eea571206
		fi
		echo	'Chargement de Linux linux…'
		linux	/vmlinuz-linux root=UUID=a2077c26-9485-4361-b683-087602c30c8c rw  
		echo	'Chargement du disque mémoire initial…'
		initrd  /initramfs-linux-fallback.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 10 (loader) (sur /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-chain-36F8E4C4F8E48409' {
	insmod part_msdos
	insmod ntfs
	set root='hd0,msdos1'
	if [ x$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  36F8E4C4F8E48409
	else
	  search --no-floppy --fs-uuid --set=root 36F8E4C4F8E48409
	fi
	parttool ${root} hidden-
	drivemap -s (hd0) ${root}
	chainloader +1
}
### 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 ###

/etc/fstab

# 
# /etc/fstab: static file system information
#
# <file system>	<dir>	<type>	<options>	<dump>	<pass>
# /dev/sdb1
UUID=a2077c26-9485-4361-b683-087602c30c8c	/         	ext4      	rw,relatime,data=ordered	0 1

# /dev/sdd2 LABEL=disk2
UUID=cab5dd86-c563-4dfe-b1f1-708eea571206	/boot     	ext2      	rw,relatime	0 2

# /dev/sdc6
UUID=8e6243a0-22e6-4fcf-a131-a835e7f72530	/home     	ext4      	rw,relatime,data=ordered	0 2

# /dev/sdd6
UUID=ee664520-2205-421e-875d-d1432bae9470	/home/cyril/home_extra     	ext4      	rw,relatime,data=ordered	0 3

fdisk

Disk /dev/sda: 58.7 GiB, 63023063040 bytes, 123091920 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xdfdadfda

Device     Boot     Start       End   Sectors  Size Id Type
/dev/sda1  *           63 122152364 122152302 58.3G  7 HPFS/NTFS/exFAT
/dev/sda2       122152960 123074559    921600  450M 27 Hidden NTFS WinRE


Disk /dev/sdb: 59.6 GiB, 64023257088 bytes, 125045424 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x000c31ea

Device     Boot Start       End   Sectors  Size Id Type
/dev/sdb1  *       63 125017641 125017579 59.6G 83 Linux


Disk /dev/sdd: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0001a2d5

Device     Boot     Start       End   Sectors   Size Id Type
/dev/sdd1            2046 968910847 968908802   462G  5 Extended
/dev/sdd2  *    968912280 976751999   7839720   3.8G  7 HPFS/NTFS/exFAT
/dev/sdd5            2048   7628799   7626752   3.7G 82 Linux swap / Solaris
/dev/sdd6         7630848 968910847 961280000 458.4G 83 Linux

Partition table entries are not in disk order.


Disk /dev/sdc: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0000c823

Device     Boot     Start       End   Sectors   Size Id Type
/dev/sdc1            4094 976773119 976769026 465.8G  5 Extended
/dev/sdc5            4096 204804095 204800000  97.7G  7 HPFS/NTFS/exFAT
/dev/sdc6       204806144 976773119 771966976 368.1G 83 Linux


Disk /dev/sde: 7.5 GiB, 8004304896 bytes, 15633408 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x472edcb7

Device     Boot Start      End  Sectors  Size Id Type
/dev/sde1  *     1953 15633407 15631455  7.5G  c W95 FAT32 (LBA)




Disk /dev/sdf: 58.6 GiB, 62932647936 bytes, 122915328 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x7c46994f

Device     Boot Start       End   Sectors  Size Id Type
/dev/sdf1  *     8064 122915327 122907264 58.6G  7 HPFS/NTFS/exFAT


Disk /dev/sdg: 956 MiB, 1002438656 bytes, 1957888 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x6d5e2a3d

Device     Boot Start     End Sectors  Size Id Type
/dev/sdg1  *       32 1957887 1957856  956M  b W95 FAT32

lsblk

NAME   FSTYPE  LABEL       UUID                                 MOUNTPOINT
sdf                                                             
`-sdf1 exfat   KINGSTON    96A0-ED48                            
sdd    ext4    disk2       1961bf4c-d870-446e-ba87-ef007e9f887c 
|-sdd2 ext2    disk2       cab5dd86-c563-4dfe-b1f1-708eea571206 /boot
|-sdd5 swap    disk2       ee960d6b-dc83-4b96-8d19-16e18e6cc825 
|-sdd1 ext4    disk2       1961bf4c-d870-446e-ba87-ef007e9f887c 
`-sdd6 ext4    disk2       ee664520-2205-421e-875d-d1432bae9470 /home/cyril/home_extra
sdb                                                             
`-sdb1 ext4                a2077c26-9485-4361-b683-087602c30c8c /
sr0                                                             
sdg                                                             
`-sdg1 vfat    MYLINUXLIVE CA42-98DE                            
sde    iso9660 GRTMUPD_FR  2008-04-14-12-00-00-00               
`-sde1 vfat    UUI         18F1-2722                            
sdc                                                             
|-sdc5 ntfs                8E240BD4240BBE69                     
|-sdc1                                                          
`-sdc6 ext4                8e6243a0-22e6-4fcf-a131-a835e7f72530 /home
sda                                                             
|-sda2 ntfs                D066DEEC66DED278                     
`-sda1 ntfs                36F8E4C4F8E48409                     

In short grub and my linux mounting logic are disaligned!
how do I make grub reading the correct boot partition?

Thanks

Last edited by kamelie1706 (2016-12-10 10:20:48)

noobExtreme

Member

From: South Africa

Registered: 2016-11-08

Posts: 28

Re: [SOLVED] Grub and mounting logic disaligned

Tell grub which new boot directory to use.

kamelie1706

Member

Registered: 2014-02-19

Posts: 176

Re: [SOLVED] Grub and mounting logic disaligned

Thanks,

It is probably obvious but I could not understand from the wiki in which setting file and how to specify that :-)
https://wiki.archlinux.org/index.php/GRUB#Configuration

kamelie1706

Member

Registered: 2014-02-19

Posts: 176

Re: [SOLVED] Grub and mounting logic disaligned

The grub conf seems correct to me .... is it possible to have 2 grub active at the same time?

Head_on_a_Stick

Member

From: London

Registered: 2014-02-20

Posts: 7,732

Website

Re: [SOLVED] Grub and mounting logic disaligned

Boot the Arch live ISO image, mount all of your partitions then use `arch-chroot` and re-install GRUB to the disk, as per https://wiki.archlinux.org/index.php/GR … ll_to_disk.

The current bootloader binary is searching for the configuration file on /dev/sdb1 and those files are gone, if you re-install the bootloader with the correct /boot partition mounted then it will "look" in the right place.

---

Are you infected with Wetiko?

kamelie1706

Member

Registered: 2014-02-19

Posts: 176

Re: [SOLVED] Grub and mounting logic disaligned

Thank you very much!

It is solved. I thought that re-running the configuration within correct mounting setup was enough

grub-mkconfig -o /boot/grub/grub.cfg

I might have tried to re-install grub under arch-root ....