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Thread: Unable to get past "Loading initial Ramdisk"

  1. #1

    Default Unable to get past "Loading initial Ramdisk"

    There are two kernel versions on my machine, 4.4.104-18-44 and 4.4.103-18.41. I am able to boot the machine successfully if I use the older one, but not the more recent one. The machine hangs during boot at the line "Loading initial Ramdisk".

    /boot/grub2 contains these files:
    Code:
    # ls -l /boot
    total 55865
    -rw-r--r-- 1 root root     1725 Jul 24 22:07 boot.readme
    -rw-r--r-- 1 root root   178574 Dec 14 08:10 config-4.4.103-18.41-default
    -rw-r--r-- 1 root root   178591 Jan  4 21:01 config-4.4.104-18.44-default
    drwxr-xr-x 1 root root        0 Dec 23 00:04 dracut
    drwxrwxr-x 4 root root     1024 Jan  1  1970 efi
    drwxr-xr-x 1 root root      120 Jan 12 05:31 grub2
    lrwxrwxrwx 1 root root       28 Jan  9 17:35 initrd -> initrd-4.4.104-18.44-default
    -rw------- 1 root root 11632120 Jan 12 05:30 initrd-4.4.103-18.41-default
    -rw------- 1 root root 11632172 Jan 12 05:30 initrd-4.4.104-18.44-default
    -rw-r--r-- 1 root root   500736 May 19  2017 message
    -rwxr-xr-x 1 root root      169 Feb  7  2016 perl-BL_delayed_exec
    -rw-r--r-- 1 root root   357170 Dec 14 08:52 symvers-4.4.103-18.41-default.gz
    -rw-r--r-- 1 root root   357351 Jan  4 21:34 symvers-4.4.104-18.44-default.gz
    -rw-r--r-- 1 root root      377 Dec 14 08:52 sysctl.conf-4.4.103-18.41-default
    -rw-r--r-- 1 root root      377 Jan  4 21:34 sysctl.conf-4.4.104-18.44-default
    -rw-r--r-- 1 root root  3201663 Dec 14 08:47 System.map-4.4.103-18.41-default
    -rw-r--r-- 1 root root  3204592 Jan  4 21:31 System.map-4.4.104-18.44-default
    -rw-r--r-- 1 root root  6916364 Dec 14 08:55 vmlinux-4.4.103-18.41-default.gz
    -rw-r--r-- 1 root root  6923326 Jan  4 21:35 vmlinux-4.4.104-18.44-default.gz
    lrwxrwxrwx 1 root root       29 Jan  9 17:35 vmlinuz -> vmlinuz-4.4.104-18.44-default
    -rw-r--r-- 1 root root  6028984 Dec 14 09:31 vmlinuz-4.4.103-18.41-default
    -rw-r--r-- 1 root root       65 Dec 14 09:31 .vmlinuz-4.4.103-18.41-default.hmac
    -rw-r--r-- 1 root root  6037176 Jan  4 22:04 vmlinuz-4.4.104-18.44-default
    -rw-r--r-- 1 root root       65 Jan  4 22:04 .vmlinuz-4.4.104-18.44-default.hmac
    I experienced this problem last in December 2015 on a different computer and was advised to "Try to add dis_ucode_ldr to your boot options." This makes no difference when I try it now.

    When I check the disk to verify that it is not full, I get:
    Code:
    # df
    Filesystem     1K-blocks      Used Available Use% Mounted on
    devtmpfs         3666748         0   3666748   0% /dev
    tmpfs            3675040     34764   3640276   1% /dev/shm
    tmpfs            3675040      2448   3672592   1% /run
    tmpfs            3675040         0   3675040   0% /sys/fs/cgroup
    /dev/sda7       41946112  21131848  19467832  53% /
    /dev/sda7       41946112  21131848  19467832  53% /srv
    /dev/sda7       41946112  21131848  19467832  53% /tmp
    /dev/sda7       41946112  21131848  19467832  53% /var/lib/pgsql
    /dev/sda7       41946112  21131848  19467832  53% /var/lib/named
    /dev/sda7       41946112  21131848  19467832  53% /var/lib/mailman
    /dev/sda7       41946112  21131848  19467832  53% /boot/grub2/x86_64-efi
    /dev/sda7       41946112  21131848  19467832  53% /.snapshots
    /dev/sda7       41946112  21131848  19467832  53% /var/lib/mariadb
    /dev/sda7       41946112  21131848  19467832  53% /var/lib/mysql
    /dev/sda7       41946112  21131848  19467832  53% /usr/local
    /dev/sda7       41946112  21131848  19467832  53% /opt
    /dev/sda7       41946112  21131848  19467832  53% /var/lib/machines
    /dev/sda7       41946112  21131848  19467832  53% /boot/grub2/i386-pc
    /dev/sda7       41946112  21131848  19467832  53% /var/spool
    /dev/sda7       41946112  21131848  19467832  53% /var/opt
    /dev/sda7       41946112  21131848  19467832  53% /var/lib/libvirt/images
    /dev/sda7       41946112  21131848  19467832  53% /var/log
    /dev/sda7       41946112  21131848  19467832  53% /var/tmp
    /dev/sda2          98304     60597     37707  62% /boot/efi
    /dev/sda7       41946112  21131848  19467832  53% /var/crash
    /dev/sda8      723188724 134071824 589116900  19% /home
    tmpfs             735012        16    734996   1% /run/user/1000
    The grub.cfg file contains this:
    Code:
    #
    # 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 ###
    set btrfs_relative_path="y"
    export btrfs_relative_path
    if [ -f ${config_directory}/grubenv ]; then
      load_env -f ${config_directory}/grubenv
    elif [ -s $prefix/grubenv ]; then
      load_env
    fi
    
    if [ "${env_block}" ] ; then
      load_env -f "${env_block}"
    fi
    
    if [ "${next_entry}" ] ; then
       set default="${next_entry}"
       set next_entry=
       save_env next_entry
       if [ "${env_block}" ] ; then
         save_env -f "${env_block}" next_entry
       fi
       set boot_once=true
    else
       set default="${saved_entry}"
    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
        if [ "${env_block}" ] ; then
          save_env -f "${env_block}" saved_entry
        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$feature_default_font_path = xy ] ; then
       font=unicode
    else
    insmod part_gpt
    insmod btrfs
    set root='hd0,gpt7'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt7 --hint-efi=hd0,gpt7 --hint-baremetal=ahci0,gpt7  5b8f13a8-0511-4aa4-ad5a-b6819e382a4b
    else
      search --no-floppy --fs-uuid --set=root 5b8f13a8-0511-4aa4-ad5a-b6819e382a4b
    fi
        font="/usr/share/grub2/unicode.pf2"
    fi
    
    if loadfont $font ; then
    echo "Please press t to show the boot menu on this console"
      set gfxmode=auto
      load_video
      insmod gfxterm
      set locale_dir=$prefix/locale
      set lang=en_GB
      insmod gettext
    fi
    terminal_output gfxterm
    insmod part_gpt
    insmod btrfs
    set root='hd0,gpt7'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt7 --hint-efi=hd0,gpt7 --hint-baremetal=ahci0,gpt7  5b8f13a8-0511-4aa4-ad5a-b6819e382a4b
    else
      search --no-floppy --fs-uuid --set=root 5b8f13a8-0511-4aa4-ad5a-b6819e382a4b
    fi
    insmod gfxmenu
    loadfont ($root)/boot/grub2/themes/openSUSE/ascii.pf2
    loadfont ($root)/boot/grub2/themes/openSUSE/DejaVuSans10.pf2
    loadfont ($root)/boot/grub2/themes/openSUSE/DejaVuSans12.pf2
    loadfont ($root)/boot/grub2/themes/openSUSE/DejaVuSans-Bold14.pf2
    insmod png
    set theme=($root)/boot/grub2/themes/openSUSE/theme.txt
    export theme
    if [ x${boot_once} = xtrue ]; then
      set timeout=0
    elif [ x$feature_timeout_style = xy ] ; then
      set timeout_style=menu
      set timeout=8
    # Fallback normal timeout code in case the timeout_style feature is
    # unavailable.
    else
      set timeout=8
    fi
    if [ -n "$extra_cmdline" ]; then
      submenu "Bootable snapshot #$snapshot_num" {
        menuentry "If OK, run 'snapper rollback' and reboot." { true; }
      }
    fi
    ### END /etc/grub.d/00_header ###
    
    ### BEGIN /etc/grub.d/00_tuned ###
    set tuned_params=""
    ### END /etc/grub.d/00_tuned ###
    
    ### BEGIN /etc/grub.d/10_linux ###
    menuentry 'openSUSE Leap 42.2'  --class opensuse --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-5b8f13a8-0511-4aa4-ad5a-b6819e382a4b' {
        load_video
        set gfxpayload=keep
        insmod gzio
        insmod part_gpt
        insmod btrfs
        set root='hd0,gpt7'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt7 --hint-efi=hd0,gpt7 --hint-baremetal=ahci0,gpt7  5b8f13a8-0511-4aa4-ad5a-b6819e382a4b
        else
          search --no-floppy --fs-uuid --set=root 5b8f13a8-0511-4aa4-ad5a-b6819e382a4b
        fi
        echo    'Loading Linux 4.4.104-18.44-default ...'
        linuxefi /boot/vmlinuz-4.4.104-18.44-default root=UUID=5b8f13a8-0511-4aa4-ad5a-b6819e382a4b ro  ${extra_cmdline} resume=/dev/disk/by-uuid/73229ef7-df65-4f6a-848c-ef99a4bbf47d splash=silent quiet showopts
        echo    'Loading initial ramdisk ...'
        initrdefi /boot/initrd-4.4.104-18.44-default
    }
    submenu 'Advanced options for openSUSE Leap 42.2' --hotkey=1 $menuentry_id_option 'gnulinux-advanced-5b8f13a8-0511-4aa4-ad5a-b6819e382a4b' {
        menuentry 'openSUSE Leap 42.2, with Linux 4.4.104-18.44-default' --hotkey=2 --class opensuse --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.104-18.44-default-advanced-5b8f13a8-0511-4aa4-ad5a-b6819e382a4b' {
            load_video
            set gfxpayload=keep
            insmod gzio
            insmod part_gpt
            insmod btrfs
            set root='hd0,gpt7'
            if [ x$feature_platform_search_hint = xy ]; then
              search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt7 --hint-efi=hd0,gpt7 --hint-baremetal=ahci0,gpt7  5b8f13a8-0511-4aa4-ad5a-b6819e382a4b
            else
              search --no-floppy --fs-uuid --set=root 5b8f13a8-0511-4aa4-ad5a-b6819e382a4b
            fi
            echo    'Loading Linux 4.4.104-18.44-default ...'
            linuxefi /boot/vmlinuz-4.4.104-18.44-default root=UUID=5b8f13a8-0511-4aa4-ad5a-b6819e382a4b ro  ${extra_cmdline} resume=/dev/disk/by-uuid/73229ef7-df65-4f6a-848c-ef99a4bbf47d splash=silent quiet showopts
            echo    'Loading initial ramdisk ...'
            initrdefi /boot/initrd-4.4.104-18.44-default
        }
        menuentry 'openSUSE Leap 42.2, with Linux 4.4.103-18.41-default'  --class opensuse --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.103-18.41-default-advanced-5b8f13a8-0511-4aa4-ad5a-b6819e382a4b' {
            load_video
            set gfxpayload=keep
            insmod gzio
            insmod part_gpt
            insmod btrfs
            set root='hd0,gpt7'
            if [ x$feature_platform_search_hint = xy ]; then
              search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt7 --hint-efi=hd0,gpt7 --hint-baremetal=ahci0,gpt7  5b8f13a8-0511-4aa4-ad5a-b6819e382a4b
            else
              search --no-floppy --fs-uuid --set=root 5b8f13a8-0511-4aa4-ad5a-b6819e382a4b
            fi
            echo    'Loading Linux 4.4.103-18.41-default ...'
            linuxefi /boot/vmlinuz-4.4.103-18.41-default root=UUID=5b8f13a8-0511-4aa4-ad5a-b6819e382a4b ro  ${extra_cmdline} resume=/dev/disk/by-uuid/73229ef7-df65-4f6a-848c-ef99a4bbf47d splash=silent quiet showopts
            echo    'Loading initial ramdisk ...'
            initrdefi /boot/initrd-4.4.103-18.41-default
        }
    }
    
    ### 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 ###
    menuentry 'Windows Boot Manager (on /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-efi-1442-E6D0' {
        insmod part_gpt
        insmod fat
        set root='hd0,gpt2'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  1442-E6D0
        else
          search --no-floppy --fs-uuid --set=root 1442-E6D0
        fi
        chainloader /EFI/Microsoft/Boot/bootmgfw.efi
    }
    ### 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/80_suse_btrfs_snapshot ###
    if [ -f "/.snapshots/grub-snapshot.cfg" ]; then
      source "/.snapshots/grub-snapshot.cfg"
    fi
    ### END /etc/grub.d/80_suse_btrfs_snapshot ###
    
    ### BEGIN /etc/grub.d/90_persistent ###
    ### END /etc/grub.d/90_persistent ###
    
    ### BEGIN /etc/grub.d/95_textmode ###
    
        # On EFI systems we can only have graphics *or* serial, so allow the user
        # to switch between the two
        hiddenentry 'Text mode' --hotkey 't' {
        set textmode=true
        terminal_output console
        }
    ### END /etc/grub.d/95_textmode ###
    Can anyone advise me what to do? I am frightened to do another "zypper up" in case it throws away the only Ramdisk that actually works.

  2. #2

    Default Re: Unable to get past "Loading initial Ramdisk"

    Quote Originally Posted by tgf View Post
    There are two kernel versions on my machine, 4.4.104-18-44 and 4.4.103-18.41. I am able to boot the machine successfully if I use the older one, but not the more recent one. The machine hangs during boot at the line "Loading initial Ramdisk".
    Known problem with the recent security updates on some systems.

    Try the "nopti" and/or "nospec" kernel options, or maybe "noefi".

    See https://forums.opensuse.org/showthre...kernel-4-4-104

    I am frightened to do another "zypper up" in case it throws away the only Ramdisk that actually works.
    As long as you boot the older kernel, it will never get removed.
    That only may happen if you (successfully) boot a newer one. (older kernels are only removed during boot, not during installation)

    You could edit /etc/zypp/zypp.conf though to make sure that kernel is kept.
    Modify this line:
    Code:
    multiversion.kernels = latest,latest-1,running
    You could e.g. add a "latest-2" or "oldest", or the specific version number you want to keep.

  3. #3
    Join Date
    Sep 2012
    Posts
    5,012

    Default Re: Unable to get past "Loading initial Ramdisk"

    Standard recommendation is to test current development kernel (https://build.opensuse.org/package/b...itory=standard) and if it still does not work, open bug report.

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