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From: Hendrik Friedel <hendrik@friedels.name>
To: Chris Murphy <lists@colorremedies.com>
Cc: Btrfs BTRFS <linux-btrfs@vger.kernel.org>
Subject: Re: booting from BTRFS works only with one device in the pool
Date: Sat, 13 Feb 2016 15:38:10 +0100	[thread overview]
Message-ID: <56BF3FD2.2030005@friedels.name> (raw)
In-Reply-To: <CAJCQCtTth7gKnCKsuJhaJ2jvYxzgZ76+gqQZOE2q7HJANXPQag@mail.gmail.com>

[-- Attachment #1: Type: text/plain, Size: 1020 bytes --]

Hello Chris,

thanks, I appreciate your help

-----------------
1. Install CentOS 7.0 to vda
2. reboot
3. btrfs dev add /dev/vdb /
4. reboot
## works
5. btrfs balance start /
6. reboot
## works

Same thing when starting with CentOS 7.2 media.

This is a NAS product using CentOS 7.2? My only guess is they've
changed something broke this.
-----------------
I confirm that it runs also for me on CentOS 7 Minimal.  Thus we can rule out CentOS and myself as the Source of the problem.
Rockstor is Based on Centos 7.2.

So, I compared the grub.cfg of Centos 7.2 -which works for me to Rockstor.

I see very few differences apart from UUIDs:
1) menuentry 'Rockstor' --class rhel fedora
    menuentry 'Centos  ' --class centos
2) insmod ext2
    insmod zfs

I have attached the two files.

Can you point me at other settings/files I could compare, please?

Regards,
Hendrik




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[-- Attachment #2: grub.cfg --]
[-- Type: text/plain, Size: 4275 bytes --]

#
# 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="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="${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
  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
}

terminal_output console
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/00_tuned ###
set tuned_params=""
### END /etc/grub.d/00_tuned ###

### BEGIN /etc/grub.d/01_users ###
if [ -f ${prefix}/user.cfg ]; then
  source ${prefix}/user.cfg
  if [ -n "${GRUB2_PASSWORD}" ]; then
    set superusers="root"
    export superusers
    password_pbkdf2 root ${GRUB2_PASSWORD}
  fi
fi
### END /etc/grub.d/01_users ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'CentOS Linux (3.10.0-327.4.5.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-327.4.5.el7.x86_64-advanced-e37695d8-f6df-490a-9a0a-b13cdfbea99d' {
	load_video
	set gfxpayload=keep
	insmod gzio
	insmod part_msdos
	insmod xfs
	set root='hd0,msdos1'
	if [ x$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 --hint='hd0,msdos1'  e7d4883f-c825-49bc-907a-8ec9bd22e774
	else
	  search --no-floppy --fs-uuid --set=root e7d4883f-c825-49bc-907a-8ec9bd22e774
	fi
	linux16 /vmlinuz-3.10.0-327.4.5.el7.x86_64 root=UUID=e37695d8-f6df-490a-9a0a-b13cdfbea99d ro rootflags=subvol=root crashkernel=auto rhgb quiet LANG=en_US.UTF-8
	initrd16 /initramfs-3.10.0-327.4.5.el7.x86_64.img
}
menuentry 'CentOS Linux (0-rescue-e8569f127454499cb00018a87844b14d) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-0-rescue-e8569f127454499cb00018a87844b14d-advanced-e37695d8-f6df-490a-9a0a-b13cdfbea99d' {
	load_video
	insmod gzio
	insmod part_msdos
	insmod xfs
	set root='hd0,msdos1'
	if [ x$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 --hint='hd0,msdos1'  e7d4883f-c825-49bc-907a-8ec9bd22e774
	else
	  search --no-floppy --fs-uuid --set=root e7d4883f-c825-49bc-907a-8ec9bd22e774
	fi
	linux16 /vmlinuz-0-rescue-e8569f127454499cb00018a87844b14d root=UUID=e37695d8-f6df-490a-9a0a-b13cdfbea99d ro rootflags=subvol=root crashkernel=auto rhgb quiet
	initrd16 /initramfs-0-rescue-e8569f127454499cb00018a87844b14d.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 ###

[-- Attachment #3: grub.cfg.rockstor --]
[-- Type: text/plain, Size: 4280 bytes --]

#
# 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="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="${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
  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
}

terminal_output console
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/00_tuned ###
set tuned_params=""
### END /etc/grub.d/00_tuned ###

### BEGIN /etc/grub.d/01_users ###
if [ -f ${prefix}/user.cfg ]; then
  source ${prefix}/user.cfg
  if [ -n "${GRUB2_PASSWORD}" ]; then
    set superusers="root"
    export superusers
    password_pbkdf2 root ${GRUB2_PASSWORD}
  fi
fi
### END /etc/grub.d/01_users ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Rockstor (4.3.3-1.el7.elrepo.x86_64) 3 (Core)' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-4.3.3-1.el7.elrepo.x86_64-advanced-43b85d9b-a042-4f4b-869f-9fefc37e45e6' {
	load_video
	set gfxpayload=keep
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos1'
	if [ x$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 --hint='hd0,msdos1'  53f8a17d-3820-4a4c-9899-6ef54b660e16
	else
	  search --no-floppy --fs-uuid --set=root 53f8a17d-3820-4a4c-9899-6ef54b660e16
	fi
	linux16 /vmlinuz-4.3.3-1.el7.elrepo.x86_64 root=UUID=43b85d9b-a042-4f4b-869f-9fefc37e45e6 ro rootflags=subvol=root crashkernel=auto rhgb quiet LANG=en_US.UTF-8
	initrd16 /initramfs-4.3.3-1.el7.elrepo.x86_64.img
}
menuentry 'Rockstor (0-rescue-49bed99205f941db9ea41e79cc8fbe84) 3 (Core)' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-0-rescue-49bed99205f941db9ea41e79cc8fbe84-advanced-43b85d9b-a042-4f4b-869f-9fefc37e45e6' {
	load_video
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos1'
	if [ x$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 --hint='hd0,msdos1'  53f8a17d-3820-4a4c-9899-6ef54b660e16
	else
	  search --no-floppy --fs-uuid --set=root 53f8a17d-3820-4a4c-9899-6ef54b660e16
	fi
	linux16 /vmlinuz-0-rescue-49bed99205f941db9ea41e79cc8fbe84 root=UUID=43b85d9b-a042-4f4b-869f-9fefc37e45e6 ro rootflags=subvol=root crashkernel=auto rhgb quiet
	initrd16 /initramfs-0-rescue-49bed99205f941db9ea41e79cc8fbe84.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 ###

  reply	other threads:[~2016-02-13 15:03 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-01 21:31 booting from BTRFS works only with one device in the pool Hendrik Friedel
2016-02-01 22:11 ` Hugo Mills
2016-02-01 23:02   ` Duncan
2016-02-01 23:15     ` Hugo Mills
2016-02-02 22:01   ` Hendrik Friedel
2016-02-02 22:06     ` Chris Murphy
2016-02-03  6:31       ` Hendrik Friedel
2016-02-02 22:09     ` Hugo Mills
2016-02-01 23:29 ` Chris Murphy
2016-02-02 21:59   ` Hendrik Friedel
2016-02-02 22:04     ` Chris Murphy
2016-02-03 18:14       ` Hendrik Friedel
2016-02-03 20:30         ` Chris Murphy
2016-02-03 22:19           ` Chris Murphy
2016-02-13 14:38             ` Hendrik Friedel [this message]
2016-02-13 18:20               ` Chris Murphy

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