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#1 2017-06-22 19:29:43

Ifnister
Member
Registered: 2017-06-20
Posts: 15

[SOLVED]Kernel panic - Not syncing: VFS: Unable to mount root fs on...

I ran update-grub in Ubuntu and I am unable to boot into Arch.
The boot loader is grub2 from Ubuntu and currently I have installed Arch, Ubuntu and windows 10. Both Ubuntu and windows 10 boot fine now, but arch does not.
When I select Arch in the grub menu I get some messages of the kernel and a final one:
"Kernel panic - Not syncing: VFS: Unable to mount root fs on unknown-block(0,0) on boot"


I have no idea what to do, all the things I have found are for the old grub
root partition of arch is in /dev/sda1, home partition of arch is in /dev/sda2 

/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 ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${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 recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; 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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
else
  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
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=en_US
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=30
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=menu
    set timeout=10
  # Fallback normal timeout code in case the timeout_style feature is
  # unavailable.
  else
    set timeout=10
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30,0; then
  clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
	if [ "${1}" = "keep" ]; then
		set vt_handoff=vt.handoff=7
	else
		set vt_handoff=
	fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-2f90364f-51e9-4cd2-bec3-4dcbac9c1fba' {
	recordfail
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
	else
	  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
	fi
	linux	/boot/vmlinuz-4.8.0-56-generic root=UUID=2f90364f-51e9-4cd2-bec3-4dcbac9c1fba ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-4.8.0-56-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-2f90364f-51e9-4cd2-bec3-4dcbac9c1fba' {
	menuentry 'Ubuntu, with Linux 4.8.0-56-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.8.0-56-generic-advanced-2f90364f-51e9-4cd2-bec3-4dcbac9c1fba' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		else
		  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		fi
		echo	'Loading Linux 4.8.0-56-generic ...'
		linux	/boot/vmlinuz-4.8.0-56-generic root=UUID=2f90364f-51e9-4cd2-bec3-4dcbac9c1fba ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.8.0-56-generic
	}
	menuentry 'Ubuntu, with Linux 4.8.0-56-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.8.0-56-generic-init-upstart-2f90364f-51e9-4cd2-bec3-4dcbac9c1fba' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		else
		  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		fi
		echo	'Loading Linux 4.8.0-56-generic ...'
		linux	/boot/vmlinuz-4.8.0-56-generic root=UUID=2f90364f-51e9-4cd2-bec3-4dcbac9c1fba ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.8.0-56-generic
	}
	menuentry 'Ubuntu, with Linux 4.8.0-56-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.8.0-56-generic-recovery-2f90364f-51e9-4cd2-bec3-4dcbac9c1fba' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		else
		  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		fi
		echo	'Loading Linux 4.8.0-56-generic ...'
		linux	/boot/vmlinuz-4.8.0-56-generic root=UUID=2f90364f-51e9-4cd2-bec3-4dcbac9c1fba ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.8.0-56-generic
	}
	menuentry 'Ubuntu, with Linux 4.8.0-36-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.8.0-36-generic-advanced-2f90364f-51e9-4cd2-bec3-4dcbac9c1fba' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		else
		  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		fi
		echo	'Loading Linux 4.8.0-36-generic ...'
		linux	/boot/vmlinuz-4.8.0-36-generic root=UUID=2f90364f-51e9-4cd2-bec3-4dcbac9c1fba ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.8.0-36-generic
	}
	menuentry 'Ubuntu, with Linux 4.8.0-36-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.8.0-36-generic-init-upstart-2f90364f-51e9-4cd2-bec3-4dcbac9c1fba' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		else
		  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		fi
		echo	'Loading Linux 4.8.0-36-generic ...'
		linux	/boot/vmlinuz-4.8.0-36-generic root=UUID=2f90364f-51e9-4cd2-bec3-4dcbac9c1fba ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.8.0-36-generic
	}
	menuentry 'Ubuntu, with Linux 4.8.0-36-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.8.0-36-generic-recovery-2f90364f-51e9-4cd2-bec3-4dcbac9c1fba' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		else
		  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		fi
		echo	'Loading Linux 4.8.0-36-generic ...'
		linux	/boot/vmlinuz-4.8.0-36-generic root=UUID=2f90364f-51e9-4cd2-bec3-4dcbac9c1fba ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.8.0-36-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-81-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-81-generic-advanced-2f90364f-51e9-4cd2-bec3-4dcbac9c1fba' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		else
		  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		fi
		echo	'Loading Linux 4.4.0-81-generic ...'
		linux	/boot/vmlinuz-4.4.0-81-generic root=UUID=2f90364f-51e9-4cd2-bec3-4dcbac9c1fba ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.4.0-81-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-81-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-81-generic-init-upstart-2f90364f-51e9-4cd2-bec3-4dcbac9c1fba' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		else
		  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		fi
		echo	'Loading Linux 4.4.0-81-generic ...'
		linux	/boot/vmlinuz-4.4.0-81-generic root=UUID=2f90364f-51e9-4cd2-bec3-4dcbac9c1fba ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.4.0-81-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-81-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-81-generic-recovery-2f90364f-51e9-4cd2-bec3-4dcbac9c1fba' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		else
		  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
		fi
		echo	'Loading Linux 4.4.0-81-generic ...'
		linux	/boot/vmlinuz-4.4.0-81-generic root=UUID=2f90364f-51e9-4cd2-bec3-4dcbac9c1fba ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.4.0-81-generic
	}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry 'Memory test (memtest86+)' {
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
	else
	  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
	fi
	knetbsd	/boot/memtest86+.elf
}
menuentry 'Memory test (memtest86+, serial console 115200)' {
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
	else
	  search --no-floppy --fs-uuid --set=root 2f90364f-51e9-4cd2-bec3-4dcbac9c1fba
	fi
	linux16	/boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Arch (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-3953f3d8-6a11-447a-b79b-aaa02c2afe0f' {
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos1'
	if [ x$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  3953f3d8-6a11-447a-b79b-aaa02c2afe0f
	else
	  search --no-floppy --fs-uuid --set=root 3953f3d8-6a11-447a-b79b-aaa02c2afe0f
	fi
	linux /boot/vmlinuz-linux root=UUID=3953f3d8-6a11-447a-b79b-aaa02c2afe0f rw quiet
	initrd /boot/intel-ucode.img
}
submenu 'Advanced options for Arch (on /dev/sda1)' $menuentry_id_option 'osprober-gnulinux-advanced-3953f3d8-6a11-447a-b79b-aaa02c2afe0f' {
	menuentry 'Arch Linux (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-linux--3953f3d8-6a11-447a-b79b-aaa02c2afe0f' {
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$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  3953f3d8-6a11-447a-b79b-aaa02c2afe0f
		else
		  search --no-floppy --fs-uuid --set=root 3953f3d8-6a11-447a-b79b-aaa02c2afe0f
		fi
		linux /boot/vmlinuz-linux root=UUID=3953f3d8-6a11-447a-b79b-aaa02c2afe0f rw quiet
		initrd /boot/intel-ucode.img
	}
	menuentry 'Arch Linux, with Linux linux (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-linux--3953f3d8-6a11-447a-b79b-aaa02c2afe0f' {
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$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  3953f3d8-6a11-447a-b79b-aaa02c2afe0f
		else
		  search --no-floppy --fs-uuid --set=root 3953f3d8-6a11-447a-b79b-aaa02c2afe0f
		fi
		linux /boot/vmlinuz-linux root=UUID=3953f3d8-6a11-447a-b79b-aaa02c2afe0f rw quiet
		initrd /boot/intel-ucode.img
	}
	menuentry 'Arch Linux, with Linux linux (fallback initramfs) (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-linux--3953f3d8-6a11-447a-b79b-aaa02c2afe0f' {
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$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  3953f3d8-6a11-447a-b79b-aaa02c2afe0f
		else
		  search --no-floppy --fs-uuid --set=root 3953f3d8-6a11-447a-b79b-aaa02c2afe0f
		fi
		linux /boot/vmlinuz-linux root=UUID=3953f3d8-6a11-447a-b79b-aaa02c2afe0f rw quiet
		initrd /boot/intel-ucode.img
	}
}

menuentry 'Windows 10 (loader) (on /dev/sda4)' --class windows --class os $menuentry_id_option 'osprober-chain-225E92205E91ECB3' {
	insmod part_msdos
	insmod ntfs
	set root='hd0,msdos4'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos4 --hint-efi=hd0,msdos4 --hint-baremetal=ahci0,msdos4  225E92205E91ECB3
	else
	  search --no-floppy --fs-uuid --set=root 225E92205E91ECB3
	fi
	parttool ${root} hidden-
	drivemap -s (hd0) ${root}
	chainloader +1
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###

### 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 ###

fdisk -l

Disk /dev/ram0: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram1: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram2: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram3: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram4: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram5: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram6: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram7: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram8: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram9: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram10: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram11: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram12: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram13: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram14: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram15: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/sda: 931,5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x679cbeb9

Device     Boot     Start        End   Sectors   Size Id Type
/dev/sda1            2048  167774207 167772160    80G 83 Linux
/dev/sda2       167774208  587204607 419430400   200G 83 Linux
/dev/sda3       587206654  919146495 331939842 158,3G  5 Extended
/dev/sda4  *    919146496 1021546495 102400000  48,8G  7 HPFS/NTFS/exFAT
/dev/sda5       587206656  723834879 136628224  65,2G 83 Linux
/dev/sda6       723836928  919146495 195309568  93,1G 83 Linux

Partition 3 does not start on physical sector boundary.
Partition table entries are not in disk order.

Many thanks.

EDIT: I copied the grub.cfg entry for Arch from the root partition of Arch and it worked. Apparently, there is a missing entry in initrd of the ubuntu grub.cfg...

Last edited by Ifnister (2017-08-02 14:41:06)

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#2 2018-05-26 00:37:24

donatom
Member
From: West Coast (California)
Registered: 2012-12-23
Posts: 30

Re: [SOLVED]Kernel panic - Not syncing: VFS: Unable to mount root fs on...

Thanks, ifnister. I have a dual boot desktop (Fedora and Arch) and every once in a while, after a kernel update when grub is updated, I have had problems booting arch. I have been forced to boot manually from the grub terminal until I was able to figure out what was wrong in the Fedora grub.cfg file. Usually it has been an error in the UUID number. Recently I was unable to find any error in the file, but after reading how you solved this problem, I copied the arch grub.cfg and copied it to Fedora. Problem solved! It never occurred to me to copy the arch grub.cfg. I was tempted to convert the system to gpt to get around the boot problem, but this saved me a lot of time.

Thanks, again.

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#3 2018-05-26 03:13:32

circleface
Member
Registered: 2012-05-26
Posts: 639

Re: [SOLVED]Kernel panic - Not syncing: VFS: Unable to mount root fs on...

Please do not necrobump old threads, especially ones that are solved.

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#4 2018-05-26 05:42:42

jasonwryan
Anarchist
From: .nz
Registered: 2009-05-09
Posts: 30,426
Website

Re: [SOLVED]Kernel panic - Not syncing: VFS: Unable to mount root fs on...

https://wiki.archlinux.org/index.php/Co … bumping.22



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