Bristol Digest, Vol 629, Issue 1

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Today's Topics:

1. GRUB2 Software Raid on CentOS 7.2 at on Fasthosts dedicated
server (Steven Nash)


----------------------------------------------------------------------

Message: 1
Date: Tue, 15 Dec 2015 14:16:43 +0000
From: Steven Nash <steven_nash@compuserve.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: [bristol] GRUB2 Software Raid on CentOS 7.2 at on Fasthosts
dedicated server
Message-ID: <272DD5EE-2D70-43CF-8E1A-94FA329DA89D@compuserve.com>
Content-Type: text/plain; charset=utf-8

Hi All,

I?ve got a dedicated server at Fasthosts running CentOS 7.2 (was originally upgraded from 6.x). Sorry for the long mail!

I?ve had a problem booting for a while and the only way I can reboot without a crash is to:

1. Log onto kvm
2. Reset (to reboot)
3. Hit 'c' when grub shows to enter command shell.
4. Enter the following:
set root=(hd1,msdos2)
legacy_configfile /grub/grub.conf

Then the latest default kernel boots.

If I try and just do an automatic reboot I get a crash, I only have a screen dump of the KVM console, not sure if this list accepts attachments?

If would be good to either fix grub.cfg or force grub2 to do what I do manually

Here?s some details about my setup:

cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 sda2[0] sdb2[2]
524224 blocks super 1.0 [2/2] [UU]

md1 : active raid1 sda3[0] sdb3[1]
974008128 blocks super 1.1 [2/2] [UU]
bitmap: 2/8 pages [8KB], 65536KB chunk

unused devices: <none>

cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Fri Aug 22 15:34:10 2014
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/VolGroup00-LogVol00 / ext4 defaults 1 1
UUID=7968a7a1-c420-4451-9508-b88cd1723795 /boot ext4 defaults 1 2
UUID=10f23517-d44b-41ae-ab5d-49fa94301941 swap swap defaults 0 0
UUID=199f328d-4228-4728-a979-f8dfd98c3c11 swap swap defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0


fdisk -l

Disk /dev/sda: 1000.2 GB, 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
Disk label type: dos
Disk identifier: 0xd88cd88c

Device Boot Start End Blocks Id System
/dev/sda1 2048 4196351 2097152 82 Linux swap / Solaris
/dev/sda2 * 4196352 5244927 524288 fd Linux raid autodetect
/dev/sda3 5244928 1953523711 974139392 fd Linux raid autodetect

Disk /dev/sdb: 1000.2 GB, 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
Disk label type: dos
Disk identifier: 0x000ad3a6

Device Boot Start End Blocks Id System
/dev/sdb1 2048 4196351 2097152 82 Linux swap / Solaris
/dev/sdb2 * 4196352 5244927 524288 fd Linux raid autodetect
/dev/sdb3 5244928 1953523711 974139392 fd Linux raid autodetect

Disk /dev/md1: 997.4 GB, 997384323072 bytes, 1948016256 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/mapper/VolGroup00-LogVol00: 997.4 GB, 997371936768 bytes, 1947992064 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/md0: 536 MB, 536805376 bytes, 1048448 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

blkid
/dev/sda1: UUID="10f23517-d44b-41ae-ab5d-49fa94301941" TYPE="swap"
/dev/sda2: UUID="aa762a14-2d0b-163e-970c-8b8d7161ce03" UUID_SUB="6227f0dc-5546-ca3f-229c-5be9c8bfda87" LABEL="localhost.localdomain:0" TYPE="linux_raid_member"
/dev/sda3: UUID="ef34c834-08e2-f0d7-c02e-0214a2a4c4ee" UUID_SUB="11610be9-bfe8-6b99-995d-75ff8484b06a" LABEL="localhost.localdomain:1" TYPE="linux_raid_member"
/dev/sdb1: UUID="199f328d-4228-4728-a979-f8dfd98c3c11" TYPE="swap"
/dev/sdb2: UUID="aa762a14-2d0b-163e-970c-8b8d7161ce03" UUID_SUB="e250771a-d5d9-c761-8371-9abbaae43c80" LABEL="localhost.localdomain:0" TYPE="linux_raid_member"
/dev/sdb3: UUID="ef34c834-08e2-f0d7-c02e-0214a2a4c4ee" UUID_SUB="02186339-c68b-521e-8760-49d1efc78d9a" LABEL="localhost.localdomain:1" TYPE="linux_raid_member"
/dev/md1: UUID="7LSr9U-Ym46-0gvq-Zxqo-JFWD-R8cx-Vul8Eu" TYPE="LVM2_member"
/dev/mapper/VolGroup00-LogVol00: UUID="b6ca313b-2f37-494b-ab6e-0bb22750aa47" TYPE="ext4"
/dev/md0: UUID="7968a7a1-c420-4451-9508-b88cd1723795" TYPE="ext4"

My legacy config file (that works) looks like this: /etc/grub.conf

# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You have a /boot partition. This means that
# all kernel and initrd paths are relative to /boot/, eg.
# root (hd0,1)
# kernel /vmlinuz-version ro root=/dev/mapper/VolGroup00-LogVol00
# initrd /initrd-[generic-]version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,1)/grub/splash.xpm.gz
hiddenmenu
title CentOS Linux (3.10.0-327.el7.x86_64) 7 (Core)
root (hd0,1)
kernel /vmlinuz-3.10.0-327.el7.x86_64 ro root=/dev/mapper/VolGroup00-LogVol00 rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=uk LANG=en_GB.UTF-8 SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=VolGroup00/LogVol00 rd_NO_DM rd_MD_UUID=ef34c834:08e2f0d7:c02e0214:a2a4c4ee rhgb quiet
initrd /initramfs-3.10.0-327.el7.x86_64.img
title CentOS Linux (3.10.0-229.20.1.el7.x86_64) 7 (Core)
root (hd0,1)
kernel /vmlinuz-3.10.0-229.20.1.el7.x86_64 ro root=/dev/mapper/VolGroup00-LogVol00 rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=uk LANG=en_GB.UTF-8 SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=VolGroup00/LogVol00 rd_NO_DM rd_MD_UUID=ef34c834:08e2f0d7:c02e0214:a2a4c4ee rhgb quiet
initrd /initramfs-3.10.0-229.20.1.el7.x86_64.img
title CentOS Linux (3.10.0-229.14.1.el7.x86_64) 7 (Core)
root (hd0,1)
kernel /vmlinuz-3.10.0-229.14.1.el7.x86_64 ro root=/dev/mapper/VolGroup00-LogVol00 rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=uk LANG=en_GB.UTF-8 SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=VolGroup00/LogVol00 rd_NO_DM rd_MD_UUID=ef34c834:08e2f0d7:c02e0214:a2a4c4ee rhgb quiet
initrd /initramfs-3.10.0-229.14.1.el7.x86_64.img
title CentOS Linux (3.10.0-229.11.1.el7.x86_64) 7 (Core)
root (hd0,1)
kernel /vmlinuz-3.10.0-229.11.1.el7.x86_64 ro root=/dev/mapper/VolGroup00-LogVol00 rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=uk LANG=en_GB.UTF-8 SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=VolGroup00/LogVol00 rd_NO_DM rd_MD_UUID=ef34c834:08e2f0d7:c02e0214:a2a4c4ee rhgb quiet
initrd /initramfs-3.10.0-229.11.1.el7.x86_64.img
title CentOS Linux (3.10.0-229.7.2.el7.x86_64) 7 (Core)
root (hd0,1)
kernel /vmlinuz-3.10.0-229.7.2.el7.x86_64 ro root=/dev/mapper/VolGroup00-LogVol00 rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=uk LANG=en_GB.UTF-8 SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=VolGroup00/LogVol00 rd_NO_DM rd_MD_UUID=ef34c834:08e2f0d7:c02e0214:a2a4c4ee rhgb quiet
initrd /initramfs-3.10.0-229.7.2.el7.x86_64.img
title CentOS Linux 7 Rescue 2aeb7420eb976f7a1eeb724400000020 (3.10.0-123.6.3.el7.x86_64)
root (hd0,1)
kernel /vmlinuz-0-rescue-2aeb7420eb976f7a1eeb724400000020 ro root=/dev/mapper/VolGroup00-LogVol00 rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=uk LANG=en_GB.UTF-8 SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=VolGroup00/LogVol00 rd_NO_DM rd_MD_UUID=ef34c834:08e2f0d7:c02e0214:a2a4c4ee rhgb quiet
initrd /initramfs-0-rescue-2aeb7420eb976f7a1eeb724400000020.img

For gub2:

cat /etc/default/grub
GRUB_TIMEOUT=9
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
#GRUB_DISABLE_UUID=true
#GRUB_DISABLE_OS_PROBER=true
GRUB_CMDLINE_LINUX="rd.lvm.lv=VolGroup00/LogVol00 crashkernel=auto vconsole.font=latarcyrheb-sun16 vconsole.keymap=uk rhgb quiet?

I?ve tried disabling UUID with various combinations and running grub2-mkconfig but UUID?s still appear.

I?ve also tried rebooting, editing and substituting the UUID?s for hd0,msdos2 but that didn?t help.

My grub2 config looks like: /etc/grub2.cfg

#
# 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 pager=1

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$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod lvm
insmod ext2
set root='lvmid/1Vb547-F6Db-6xQ3-M576-ZSdX-AU0e-HnWRJt/euuk0o-LyEh-l6Py-UXPL-fHuL-oOfW-Y738Jb'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvmid/1Vb547-F6Db-6xQ3-M576-ZSdX-AU0e-HnWRJt/euuk0o-LyEh-l6Py-UXPL-fHuL-oOfW-Y738Jb' b6ca313b-2f37-494b-ab6e-0bb22750aa47
else
search --no-floppy --fs-uuid --set=root b6ca313b-2f37-494b-ab6e-0bb22750aa47
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_GB
insmod gettext
fi
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 'CentOS Linux (3.10.0-327.el7.x86_64) 7 (Core)' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-simple-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/aa762a142d0b163e970c8b8d7161ce03'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/aa762a142d0b163e970c8b8d7161ce03' 7968a7a1-c420-4451-9508-b88cd1723795
else
search --no-floppy --fs-uuid --set=root 7968a7a1-c420-4451-9508-b88cd1723795
fi
linux16 /vmlinuz-3.10.0-327.el7.x86_64 root=/dev/mapper/VolGroup00-LogVol00 ro LANG=en_GB.UTF-8
initrd16 /initramfs-3.10.0-327.el7.x86_64.img
}
menuentry 'CentOS Linux (3.10.0-229.20.1.el7.x86_64) 7 (Core)' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-simple-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/aa762a142d0b163e970c8b8d7161ce03'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/aa762a142d0b163e970c8b8d7161ce03' 7968a7a1-c420-4451-9508-b88cd1723795
else
search --no-floppy --fs-uuid --set=root 7968a7a1-c420-4451-9508-b88cd1723795
fi
linux16 /vmlinuz-3.10.0-229.20.1.el7.x86_64 root=/dev/mapper/VolGroup00-LogVol00 ro LANG=en_GB.UTF-8
initrd16 /initramfs-3.10.0-229.20.1.el7.x86_64.img
}
menuentry 'CentOS Linux (3.10.0-229.14.1.el7.x86_64) 7 (Core)' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-simple-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/aa762a142d0b163e970c8b8d7161ce03'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/aa762a142d0b163e970c8b8d7161ce03' 7968a7a1-c420-4451-9508-b88cd1723795
else
search --no-floppy --fs-uuid --set=root 7968a7a1-c420-4451-9508-b88cd1723795
fi
linux16 /vmlinuz-3.10.0-229.14.1.el7.x86_64 root=/dev/mapper/VolGroup00-LogVol00 ro LANG=en_GB.UTF-8
initrd16 /initramfs-3.10.0-229.14.1.el7.x86_64.img
}
menuentry 'CentOS Linux 7 (Core)' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-simple-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/aa762a142d0b163e970c8b8d7161ce03'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/aa762a142d0b163e970c8b8d7161ce03' 7968a7a1-c420-4451-9508-b88cd1723795
else
search --no-floppy --fs-uuid --set=root 7968a7a1-c420-4451-9508-b88cd1723795
fi
linux16 /vmlinuz-3.10.0-229.14.1.el7.x86_64 root=/dev/mapper/VolGroup00-LogVol00 ro LANG=en_GB.UTF-8
initrd16 /initramfs-3.10.0-229.14.1.el7.x86_64.img
}
submenu 'Advanced options for CentOS Linux 7 (Core)' $menuentry_id_option 'gnulinux-advanced-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
menuentry 'CentOS Linux 7 (Core), with Linux 3.10.0-229.14.1.el7.x86_64' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-229.14.1.el7.x86_64-advanced-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/aa762a142d0b163e970c8b8d7161ce03'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/aa762a142d0b163e970c8b8d7161ce03' 7968a7a1-c420-4451-9508-b88cd1723795
else
search --no-floppy --fs-uuid --set=root 7968a7a1-c420-4451-9508-b88cd1723795
fi
linux16 /vmlinuz-3.10.0-229.14.1.el7.x86_64 root=/dev/mapper/VolGroup00-LogVol00 ro LANG=en_GB.UTF-8
initrd16 /initramfs-3.10.0-229.14.1.el7.x86_64.img
}
menuentry 'CentOS Linux 7 (Core), with Linux 3.10.0-229.14.1.el7.x86_64 (recovery mode)' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-229.14.1.el7.x86_64-recovery-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/aa762a142d0b163e970c8b8d7161ce03'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/aa762a142d0b163e970c8b8d7161ce03' 7968a7a1-c420-4451-9508-b88cd1723795
else
search --no-floppy --fs-uuid --set=root 7968a7a1-c420-4451-9508-b88cd1723795
fi
linux16 /vmlinuz-3.10.0-229.14.1.el7.x86_64 root=/dev/mapper/VolGroup00-LogVol00 ro single LANG=en_GB.UTF-8
initrd16 /initramfs-3.10.0-229.14.1.el7.x86_64.img
}
menuentry 'CentOS Linux 7 (Core), with Linux 3.10.0-229.11.1.el7.x86_64' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-229.11.1.el7.x86_64-advanced-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/aa762a142d0b163e970c8b8d7161ce03'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/aa762a142d0b163e970c8b8d7161ce03' 7968a7a1-c420-4451-9508-b88cd1723795
else
search --no-floppy --fs-uuid --set=root 7968a7a1-c420-4451-9508-b88cd1723795
fi
linux16 /vmlinuz-3.10.0-229.11.1.el7.x86_64 root=/dev/mapper/VolGroup00-LogVol00 ro
initrd16 /initramfs-3.10.0-229.11.1.el7.x86_64.img
}
menuentry 'CentOS Linux 7 (Core), with Linux 3.10.0-229.11.1.el7.x86_64 (recovery mode)' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-229.11.1.el7.x86_64-recovery-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/aa762a142d0b163e970c8b8d7161ce03'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/aa762a142d0b163e970c8b8d7161ce03' 7968a7a1-c420-4451-9508-b88cd1723795
else
search --no-floppy --fs-uuid --set=root 7968a7a1-c420-4451-9508-b88cd1723795
fi
linux16 /vmlinuz-3.10.0-229.11.1.el7.x86_64 root=/dev/mapper/VolGroup00-LogVol00 ro single
initrd16 /initramfs-3.10.0-229.11.1.el7.x86_64.img
}
menuentry 'CentOS Linux 7 (Core), with Linux 3.10.0-229.7.2.el7.x86_64' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-229.7.2.el7.x86_64-advanced-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/aa762a142d0b163e970c8b8d7161ce03'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/aa762a142d0b163e970c8b8d7161ce03' 7968a7a1-c420-4451-9508-b88cd1723795
else
search --no-floppy --fs-uuid --set=root 7968a7a1-c420-4451-9508-b88cd1723795
fi
linux16 /vmlinuz-3.10.0-229.7.2.el7.x86_64 root=/dev/mapper/VolGroup00-LogVol00 ro
initrd16 /initramfs-3.10.0-229.7.2.el7.x86_64.img
}
menuentry 'CentOS Linux 7 (Core), with Linux 3.10.0-229.7.2.el7.x86_64 (recovery mode)' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-229.7.2.el7.x86_64-recovery-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/aa762a142d0b163e970c8b8d7161ce03'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/aa762a142d0b163e970c8b8d7161ce03' 7968a7a1-c420-4451-9508-b88cd1723795
else
search --no-floppy --fs-uuid --set=root 7968a7a1-c420-4451-9508-b88cd1723795
fi
linux16 /vmlinuz-3.10.0-229.7.2.el7.x86_64 root=/dev/mapper/VolGroup00-LogVol00 ro single
initrd16 /initramfs-3.10.0-229.7.2.el7.x86_64.img
}
menuentry 'CentOS Linux 7 (Core), with Linux 0-rescue-2aeb7420eb976f7a1eeb724400000020' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-0-rescue-2aeb7420eb976f7a1eeb724400000020-advanced-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
load_video
insmod gzio
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/aa762a142d0b163e970c8b8d7161ce03'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/aa762a142d0b163e970c8b8d7161ce03' 7968a7a1-c420-4451-9508-b88cd1723795
else
search --no-floppy --fs-uuid --set=root 7968a7a1-c420-4451-9508-b88cd1723795
fi
linux16 /vmlinuz-0-rescue-2aeb7420eb976f7a1eeb724400000020 root=/dev/mapper/VolGroup00-LogVol00 ro
initrd16 /initramfs-0-rescue-2aeb7420eb976f7a1eeb724400000020.img
}
menuentry 'CentOS Linux 7 (Core), with Linux 0-rescue-2aeb7420eb976f7a1eeb724400000020 (recovery mode)' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-0-rescue-2aeb7420eb976f7a1eeb724400000020-recovery-b6ca313b-2f37-494b-ab6e-0bb22750aa47' {
load_video
insmod gzio
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/aa762a142d0b163e970c8b8d7161ce03'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/aa762a142d0b163e970c8b8d7161ce03' 7968a7a1-c420-4451-9508-b88cd1723795
else
search --no-floppy --fs-uuid --set=root 7968a7a1-c420-4451-9508-b88cd1723795
fi
linux16 /vmlinuz-0-rescue-2aeb7420eb976f7a1eeb724400000020 root=/dev/mapper/VolGroup00-LogVol00 ro single
initrd16 /initramfs-0-rescue-2aeb7420eb976f7a1eeb724400000020.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_ppc_terminfo ###
### END /etc/grub.d/20_ppc_terminfo ###

### 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 ###

Cheers,
Steve


------------------------------

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End of Bristol Digest, Vol 629, Issue 1
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