Arch Linux

Mladia

Member

Registered: 2016-04-30

Posts: 59

Device UUID not found

Hallo,
when trying to boot my machine today I got booted to ramdisk/ramfs with the error:

ERROR: device 'UUID=01a...7c' not found. Skipping fsck.
ERROR: Unable to find root device 'UUID=52...7c'.
You are being dropped to a recovery shell
    Type 'exit' to try and continue booting
sh: can't access tty; job control turned off
[rootfs /]# 

Then I try to solve my problem with https://bbs.archlinux.org/viewtopic.php?id=167109, but when I try to mkinitcpio -p linux I get

.
.
Error: specified kernel image does not exist: /boot/vmlinuz-linux'
.
.
Error: specified kernel image does not exist: /boot/bmlinuz-linux'

I use grub.
grub.conf

#
# 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
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 [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$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  88a87a6a-2cd4-4a4c-814f-cc1840248c7c
else
  search --no-floppy --fs-uuid --set=root 88a87a6a-2cd4-4a4c-814f-cc1840248c7c
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_UK
  insmod gettext
fi
terminal_input console
terminal_output gfxterm
set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Arch GNU/Linux, with Linux core repo kernel' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-core repo kernel-true-88a87a6a-2cd4-4a4c-814f-cc1840248c7c' {
	load_video
	set gfxpayload=keep
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos1'
	if [ x$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  88a87a6a-2cd4-4a4c-814f-cc1840248c7c
	else
	  search --no-floppy --fs-uuid --set=root 88a87a6a-2cd4-4a4c-814f-cc1840248c7c
	fi
	echo	'Loading Linux core repo kernel ...'
	linux	/boot/vmlinuz-linux root=UUID=88a87a6a-2cd4-4a4c-814f-cc1840248c7c ro  quiet
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initramfs-linux.img
}
menuentry 'Arch GNU/Linux, with Linux core repo kernel (Fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-core repo kernel-fallback-88a87a6a-2cd4-4a4c-814f-cc1840248c7c' {
	load_video
	set gfxpayload=keep
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos1'
	if [ x$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  88a87a6a-2cd4-4a4c-814f-cc1840248c7c
	else
	  search --no-floppy --fs-uuid --set=root 88a87a6a-2cd4-4a4c-814f-cc1840248c7c
	fi
	echo	'Loading Linux core repo kernel ...'
	linux	/boot/vmlinuz-linux root=UUID=88a87a6a-2cd4-4a4c-814f-cc1840248c7c ro  quiet
	echo	'Loading initial ramdisk ...'
	initrd	/boot/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/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
### 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 ###

And it seems I cannot open /etc/fstab, or is empty ..

Last edited by Mladia (2016-05-03 09:28:29)

gpstrucker

Member

Registered: 2016-05-03

Posts: 1

Re: Device UUID not found

Ok, so you booted from the installation media, mounted your root partition, and examined both your /etc/fstab and /boot/grub/grub.cfg files?

Mladia

Member

Registered: 2016-04-30

Posts: 59

Re: Device UUID not found

Yes, that's right! I just didn't mount my root partition, did I have to? I can get some more information, when that's needed

Mladia

Member

Registered: 2016-04-30

Posts: 59

Re: Device UUID not found

I found somewhere some stuff..

 # mkdir /mnt/arch
  # mount /dev/sda2 /mnt/arch   ... assuming /dev/sda2 is the root filesystem partition
  # mount /dev/sda1 /mnt/arch/boot ... assuming /dev/sda1 is the EFI partition
  # arch-chroot /mnt/arch  ... arch-chroot is a script that does some necessary extra stuff

after I mount the root partition I get

mount: sda6 is write-protected, mounting read only

and then I try to mount the boot partition I get

mount: mount point /mnt/arch/boot does not exist

Last edited by Mladia (2016-05-03 09:31:56)