Bug#1019564: (during upgrade) grub-install: warning: Attempting to install GRUB to a disk with multiple partition labels. This is not supported yet..

Ben Longbons brlongbons at gmail.com
Mon Sep 12 06:43:24 BST 2022


Package: grub-pc
Version: 2.06-3~deb11u1
Severity: grave
Justification: renders package unusable
X-Debbugs-Cc: brlongbons at gmail.com

Dear Maintainer,

Today I attempted to upgrade several security and non-security updates
(must have been a point release) as usual. This system is not new, but was
installed in September 2021 (huh, a year ago), and has rebooted fine ...
probably not every week, but every month or so?

This system was installed using mini.iso and telling it to encrypt the
disk. This is all done the traditional way, with an unencrypted separate
/boot partition (which debian-installer stupidly hard-codes to a tiny size
so blocks kernel upgrades occasionally unless you aggressively prune them),
and I've always done this in the past and never had any troubles
before. I also had no problem with grub-pc 2.04-20 which ... hm, looking at
dpkg.log that was the original version I first installed with?

My desktop, which does not use an encrypted disk, accepted the grub-pc
upgrade without error. (for that matter, why is grub getting upgraded at
all on stable? It didn't come through the security ...)

I can't even quit out of aptitude right now? It just keeps prompting in
a loop ...

Based on that prompt I just read from reportbug, it said grub shouldn't
ever be trying to reinstall itself at all??? But it clearly is, and is
failing.

If I manage to hit ^S in the brief moments between fullscreen prompts, the
last messages were:

> Setting up grub-pc (2.06-3~deb11u1) ...
> Installing for i386-pc platform.
> grub-install: warning: Attempting to install GRUB to a disk with multiple partition labels.  This is not supported yet..
> grub-install: warning: Embedding is not possible.  GRUB can only be installed in this setup by using blocklists.  However, blocklists are UNRELIABLE and their use is discouraged..
> grub-install: error: blocklists are invalid.

Then this repeats starting with "Installing for" in an infinite loop if the
default/sane options are chosen in the menus.

The popup screen says:

> Package configuration
> ─┤ Configuring grub-pc ├─
> GRUB failed to install to the following devices:
> /dev/sda1
> Do you want to continue anyway? If you do, your computer may not start
> up properly.
> 
> Writing GRUB to boot device failed - continue?
> <Yes> <No>

It sounds like the safe answer is "No" but that's what leads to the
infinite loop. The next screen (with no choice) is:

> Package configuration
> ─┤ Configuring grub-pc ├─
> The grub-pc package is being upgraded. This menu allows you to select
> which devices you'd like grub-install to be automatically run for, if
> any.
> 
> Running grub-install automatically is recommended in most situations, to
> prevent the installed GRUB core image from getting out of sync with GRUB
> modules or grub.cfg.
> 
> If you're unsure which drive is designated as boot drive by your BIOS,
> it is often a good idea to install GRUB to all of them.
> 
> Note: it is possible to install GRUB to partition boot records as well,
> and some appropriate partitions are offered here. However, this forces
> GRUB to use the blocklist mechanism, which makes it less reliable, and
> therefore is not recommended.
> <Ok>

And then (clearly /dev/sda is the only possible option here):

> Package configuration
> ─┤ Configuring grub-pc ├─
> GRUB install devices:
> [ ] /dev/dm-0 (999674 MB; sdb5_crypt)
> [*] /dev/sda (1000204 MB; HGST_HTS541010B7E610)
> [ ] - /dev/sda1 (510 MB; /boot)
> [ ] /dev/dm-1 (998647 MB; titan--vg-root)
> <Ok>

(not shown: sda2 is the MBR extended partition, and sda5 is the logical
partition just inside it, containing the encrypted LVM container thing. The
installer, as always, is dumb and permanently calls it "sdb5", but this is
just a harmless name. /dev/dm-2 is swap, and is (like dm-1) part of dm-0.
Most of this is in the automatic data dump below, but it seems like
encryption-related setup stuff is not dumped directly)

One oddity I noticed is that if I run `cfdisk /dev/sda` (but not `fdisk` or
`sfdisk`), it gives a strange warning:

> Device already contains a iso9660 signature; it will be removed by a write command.

I have no idea why it thinks my hard drive has an iso9660 signature on it,
but this is the closest thing I can imagine to why GRUB thinks it has
"multiple partition labels".

This hints that the root bug might actually be in some library becoming
overaggressive in its autodetection (isn't ISO9660 is a terribly sloppy
standard like TGA?). But GRUB is the only program I've seen that *exhibits*
the bug.

My *guesses* for how to allow `aptitude` to continue would be either:

* use `cfdisk` and issue a write without changing anything, in hopes that
  whatever it thinks is an ISO9660 label will get wiped out and not lose
  anything important.
* answer "yes" and hope that means my previously-working system gets left
  unchanged.

With this bug, I have officially had more boot problems with Debian stable
than I have on testing/sid machines. (though still nowhere near as much as
trying to make EFI work for install in the first place).

Thanks,
- Ben


-- Package-specific info:

*********************** BEGIN /proc/mounts
/dev/mapper/titan--vg-root / btrfs rw,relatime,space_cache,subvolid=256,subvol=/@rootfs 0 0
/dev/sda1 /boot ext2 rw,relatime,stripe=4 0 0
*********************** END /proc/mounts

*********************** BEGIN /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 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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod lvm
insmod btrfs
set root='lvmid/nN3A1g-g1t5-2BcZ-tULj-DqDp-ZBCV-G1aVx8/ts4AD4-fHUP-jCRg-Zmxe-p73b-MvnY-h0t14z'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint='lvmid/nN3A1g-g1t5-2BcZ-tULj-DqDp-ZBCV-G1aVx8/ts4AD4-fHUP-jCRg-Zmxe-p73b-MvnY-h0t14z'  f1ba88a4-f4fd-4324-8157-acd5c53ce639
else
  search --no-floppy --fs-uuid --set=root f1ba88a4-f4fd-4324-8157-acd5c53ce639
fi
    font="/@rootfs/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=5
  # Fallback normal timeout code in case the timeout_style feature is
  # unavailable.
  else
    set timeout=5
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
insmod lvm
insmod btrfs
set root='lvmid/nN3A1g-g1t5-2BcZ-tULj-DqDp-ZBCV-G1aVx8/ts4AD4-fHUP-jCRg-Zmxe-p73b-MvnY-h0t14z'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint='lvmid/nN3A1g-g1t5-2BcZ-tULj-DqDp-ZBCV-G1aVx8/ts4AD4-fHUP-jCRg-Zmxe-p73b-MvnY-h0t14z'  f1ba88a4-f4fd-4324-8157-acd5c53ce639
else
  search --no-floppy --fs-uuid --set=root f1ba88a4-f4fd-4324-8157-acd5c53ce639
fi
insmod png
if background_image /@rootfs/usr/share/desktop-base/homeworld-theme/grub/grub-4x3.png; then
  set color_normal=white/black
  set color_highlight=black/white
else
  set menu_color_normal=cyan/blue
  set menu_color_highlight=white/blue
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
}
set linux_gfx_mode=
export linux_gfx_mode
menuentry 'Debian GNU/Linux' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-f1ba88a4-f4fd-4324-8157-acd5c53ce639' {
	load_video
	insmod gzio
	if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
	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  31247b29-2160-4fa1-9e6d-7055ab40e08d
	else
	  search --no-floppy --fs-uuid --set=root 31247b29-2160-4fa1-9e6d-7055ab40e08d
	fi
	echo	'Loading Linux 5.10.0-18-amd64 ...'
	linux	/vmlinuz-5.10.0-18-amd64 root=/dev/mapper/titan--vg-root ro rootflags=subvol=@rootfs  quiet
	echo	'Loading initial ramdisk ...'
	initrd	/initrd.img-5.10.0-18-amd64
}
submenu 'Advanced options for Debian GNU/Linux' $menuentry_id_option 'gnulinux-advanced-f1ba88a4-f4fd-4324-8157-acd5c53ce639' {
	menuentry 'Debian GNU/Linux, with Linux 5.10.0-18-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-18-amd64-advanced-f1ba88a4-f4fd-4324-8157-acd5c53ce639' {
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		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  31247b29-2160-4fa1-9e6d-7055ab40e08d
		else
		  search --no-floppy --fs-uuid --set=root 31247b29-2160-4fa1-9e6d-7055ab40e08d
		fi
		echo	'Loading Linux 5.10.0-18-amd64 ...'
		linux	/vmlinuz-5.10.0-18-amd64 root=/dev/mapper/titan--vg-root ro rootflags=subvol=@rootfs  quiet
		echo	'Loading initial ramdisk ...'
		initrd	/initrd.img-5.10.0-18-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 5.10.0-18-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-18-amd64-recovery-f1ba88a4-f4fd-4324-8157-acd5c53ce639' {
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		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  31247b29-2160-4fa1-9e6d-7055ab40e08d
		else
		  search --no-floppy --fs-uuid --set=root 31247b29-2160-4fa1-9e6d-7055ab40e08d
		fi
		echo	'Loading Linux 5.10.0-18-amd64 ...'
		linux	/vmlinuz-5.10.0-18-amd64 root=/dev/mapper/titan--vg-root ro single rootflags=subvol=@rootfs
		echo	'Loading initial ramdisk ...'
		initrd	/initrd.img-5.10.0-18-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 5.10.0-17-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-17-amd64-advanced-f1ba88a4-f4fd-4324-8157-acd5c53ce639' {
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		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  31247b29-2160-4fa1-9e6d-7055ab40e08d
		else
		  search --no-floppy --fs-uuid --set=root 31247b29-2160-4fa1-9e6d-7055ab40e08d
		fi
		echo	'Loading Linux 5.10.0-17-amd64 ...'
		linux	/vmlinuz-5.10.0-17-amd64 root=/dev/mapper/titan--vg-root ro rootflags=subvol=@rootfs  quiet
		echo	'Loading initial ramdisk ...'
		initrd	/initrd.img-5.10.0-17-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 5.10.0-17-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-17-amd64-recovery-f1ba88a4-f4fd-4324-8157-acd5c53ce639' {
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		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  31247b29-2160-4fa1-9e6d-7055ab40e08d
		else
		  search --no-floppy --fs-uuid --set=root 31247b29-2160-4fa1-9e6d-7055ab40e08d
		fi
		echo	'Loading Linux 5.10.0-17-amd64 ...'
		linux	/vmlinuz-5.10.0-17-amd64 root=/dev/mapper/titan--vg-root ro single rootflags=subvol=@rootfs
		echo	'Loading initial ramdisk ...'
		initrd	/initrd.img-5.10.0-17-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 5.10.0-16-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-16-amd64-advanced-f1ba88a4-f4fd-4324-8157-acd5c53ce639' {
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		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  31247b29-2160-4fa1-9e6d-7055ab40e08d
		else
		  search --no-floppy --fs-uuid --set=root 31247b29-2160-4fa1-9e6d-7055ab40e08d
		fi
		echo	'Loading Linux 5.10.0-16-amd64 ...'
		linux	/vmlinuz-5.10.0-16-amd64 root=/dev/mapper/titan--vg-root ro rootflags=subvol=@rootfs  quiet
		echo	'Loading initial ramdisk ...'
		initrd	/initrd.img-5.10.0-16-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 5.10.0-16-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-16-amd64-recovery-f1ba88a4-f4fd-4324-8157-acd5c53ce639' {
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		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  31247b29-2160-4fa1-9e6d-7055ab40e08d
		else
		  search --no-floppy --fs-uuid --set=root 31247b29-2160-4fa1-9e6d-7055ab40e08d
		fi
		echo	'Loading Linux 5.10.0-16-amd64 ...'
		linux	/vmlinuz-5.10.0-16-amd64 root=/dev/mapper/titan--vg-root ro single rootflags=subvol=@rootfs
		echo	'Loading initial ramdisk ...'
		initrd	/initrd.img-5.10.0-16-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 5.10.0-15-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-15-amd64-advanced-f1ba88a4-f4fd-4324-8157-acd5c53ce639' {
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		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  31247b29-2160-4fa1-9e6d-7055ab40e08d
		else
		  search --no-floppy --fs-uuid --set=root 31247b29-2160-4fa1-9e6d-7055ab40e08d
		fi
		echo	'Loading Linux 5.10.0-15-amd64 ...'
		linux	/vmlinuz-5.10.0-15-amd64 root=/dev/mapper/titan--vg-root ro rootflags=subvol=@rootfs  quiet
		echo	'Loading initial ramdisk ...'
		initrd	/initrd.img-5.10.0-15-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 5.10.0-15-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-15-amd64-recovery-f1ba88a4-f4fd-4324-8157-acd5c53ce639' {
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		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  31247b29-2160-4fa1-9e6d-7055ab40e08d
		else
		  search --no-floppy --fs-uuid --set=root 31247b29-2160-4fa1-9e6d-7055ab40e08d
		fi
		echo	'Loading Linux 5.10.0-15-amd64 ...'
		linux	/vmlinuz-5.10.0-15-amd64 root=/dev/mapper/titan--vg-root ro single rootflags=subvol=@rootfs
		echo	'Loading initial ramdisk ...'
		initrd	/initrd.img-5.10.0-15-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 5.10.0-13-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-13-amd64-advanced-f1ba88a4-f4fd-4324-8157-acd5c53ce639' {
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		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  31247b29-2160-4fa1-9e6d-7055ab40e08d
		else
		  search --no-floppy --fs-uuid --set=root 31247b29-2160-4fa1-9e6d-7055ab40e08d
		fi
		echo	'Loading Linux 5.10.0-13-amd64 ...'
		linux	/vmlinuz-5.10.0-13-amd64 root=/dev/mapper/titan--vg-root ro rootflags=subvol=@rootfs  quiet
		echo	'Loading initial ramdisk ...'
		initrd	/initrd.img-5.10.0-13-amd64
	}
	menuentry 'Debian GNU/Linux, with Linux 5.10.0-13-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-13-amd64-recovery-f1ba88a4-f4fd-4324-8157-acd5c53ce639' {
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		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  31247b29-2160-4fa1-9e6d-7055ab40e08d
		else
		  search --no-floppy --fs-uuid --set=root 31247b29-2160-4fa1-9e6d-7055ab40e08d
		fi
		echo	'Loading Linux 5.10.0-13-amd64 ...'
		linux	/vmlinuz-5.10.0-13-amd64 root=/dev/mapper/titan--vg-root ro single rootflags=subvol=@rootfs
		echo	'Loading initial ramdisk ...'
		initrd	/initrd.img-5.10.0-13-amd64
	}
}

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

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

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

### BEGIN /etc/grub.d/30_os-prober ###
### 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 ###
*********************** END /boot/grub/grub.cfg

*********************** BEGIN /proc/mdstat
cat: /proc/mdstat: No such file or directory
*********************** END /proc/mdstat

*********************** BEGIN LVM
  --- Volume group ---
  VG Name               titan-vg
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  3
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               1
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               <931.02 GiB
  PE Size               4.00 MiB
  Total PE              238340
  Alloc PE / Size       238340 / <931.02 GiB
  Free  PE / Size       0 / 0
  VG UUID               nN3A1g-g1t5-2BcZ-tULj-DqDp-ZBCV-G1aVx8

  --- Physical volume ---
  PV Name               /dev/mapper/sdb5_crypt
  VG Name               titan-vg
  PV Size               <931.02 GiB / not usable 4.00 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              238340
  Free PE               0
  Allocated PE          238340
  PV UUID               vO5elR-LoT0-TCZP-wkFR-S7Rr-1U2I-Ffoo36

  --- Logical volume ---
  LV Path                /dev/titan-vg/root
  LV Name                root
  VG Name                titan-vg
  LV UUID                ts4AD4-fHUP-jCRg-Zmxe-p73b-MvnY-h0t14z
  LV Write Access        read/write
  LV Creation host, time titan, 2021-09-03 16:18:59 -0700
  LV Status              available
  # open                 1
  LV Size                930.06 GiB
  Current LE             238096
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           254:1

  --- Logical volume ---
  LV Path                /dev/titan-vg/swap_1
  LV Name                swap_1
  VG Name                titan-vg
  LV UUID                oawPz0-4RCU-Za9Y-3frV-Ls6E-eYYZ-3HLiOQ
  LV Write Access        read/write
  LV Creation host, time titan, 2021-09-03 16:18:59 -0700
  LV Status              available
  # open                 0
  LV Size                976.00 MiB
  Current LE             244
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           254:2

*********************** END LVM

*********************** BEGIN /dev/disk/by-id
total 0
lrwxrwxrwx 1 root root  9 Sep 11 21:03 ata-HGST_HTS541010B7E610_WXH1AB7NSTZ3 -> ../../sda
lrwxrwxrwx 1 root root 10 Sep 11 21:03 ata-HGST_HTS541010B7E610_WXH1AB7NSTZ3-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Sep 11 21:03 ata-HGST_HTS541010B7E610_WXH1AB7NSTZ3-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Sep 11 21:03 ata-HGST_HTS541010B7E610_WXH1AB7NSTZ3-part5 -> ../../sda5
lrwxrwxrwx 1 root root  9 Aug 27 12:43 ata-hp_DVDRW_DA8AESH_465802924495 -> ../../sr0
lrwxrwxrwx 1 root root 10 Aug 27 12:43 dm-name-sdb5_crypt -> ../../dm-0
lrwxrwxrwx 1 root root 10 Aug 27 12:43 dm-name-titan--vg-root -> ../../dm-1
lrwxrwxrwx 1 root root 10 Sep  3 16:46 dm-name-titan--vg-swap_1 -> ../../dm-2
lrwxrwxrwx 1 root root 10 Aug 27 12:43 dm-uuid-CRYPT-LUKS2-34cba66a33e44e78a88809be9dc97493-sdb5_crypt -> ../../dm-0
lrwxrwxrwx 1 root root 10 Sep  3 16:46 dm-uuid-LVM-nN3A1gg1t52BcZtULjDqDpZBCVG1aVx8oawPz04RCUZa9Y3frVLs6EeYYZ3HLiOQ -> ../../dm-2
lrwxrwxrwx 1 root root 10 Aug 27 12:43 dm-uuid-LVM-nN3A1gg1t52BcZtULjDqDpZBCVG1aVx8ts4AD4fHUPjCRgZmxep73bMvnYh0t14z -> ../../dm-1
lrwxrwxrwx 1 root root 10 Aug 27 12:43 lvm-pv-uuid-vO5elR-LoT0-TCZP-wkFR-S7Rr-1U2I-Ffoo36 -> ../../dm-0
lrwxrwxrwx 1 root root  9 Sep 11 21:03 wwn-0x50014ee65d93cb11 -> ../../sda
lrwxrwxrwx 1 root root 10 Sep 11 21:03 wwn-0x50014ee65d93cb11-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Sep 11 21:03 wwn-0x50014ee65d93cb11-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Sep 11 21:03 wwn-0x50014ee65d93cb11-part5 -> ../../sda5
*********************** END /dev/disk/by-id

*********************** BEGIN /dev/disk/by-uuid
total 0
lrwxrwxrwx 1 root root  9 Sep 11 21:03 2021-04-20-11-02-45-00 -> ../../sda
lrwxrwxrwx 1 root root 10 Sep 11 21:03 31247b29-2160-4fa1-9e6d-7055ab40e08d -> ../../sda1
lrwxrwxrwx 1 root root 10 Sep 11 21:03 34cba66a-33e4-4e78-a888-09be9dc97493 -> ../../sda5
lrwxrwxrwx 1 root root 10 Sep  3 16:46 5d6dff84-2397-429b-bccc-762e46bdcf53 -> ../../dm-2
lrwxrwxrwx 1 root root 10 Aug 27 12:43 f1ba88a4-f4fd-4324-8157-acd5c53ce639 -> ../../dm-1
*********************** END /dev/disk/by-uuid

-- System Information:
Debian Release: 11.5
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-17-amd64 (SMP w/4 CPU threads)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages grub-pc depends on:
ii  debconf [debconf-2.0]  1.5.77
iu  grub-common            2.06-3~deb11u1
iu  grub-pc-bin            2.06-3~deb11u1
iu  grub2-common           2.06-3~deb11u1
ii  ucf                    3.0043

grub-pc recommends no packages.

grub-pc suggests no packages.

-- debconf information:
  grub-pc/postrm_purge_boot_grub: false
* grub2/linux_cmdline:
  grub2/kfreebsd_cmdline:
* grub2/linux_cmdline_default: quiet
  grub-pc/install_devices_failed: false
  grub-pc/disk_description:
  grub-pc/kopt_extracted: false
  grub-pc/mixed_legacy_and_grub2: true
* grub-pc/install_devices: /dev/disk/by-id/ata-HGST_HTS541010B7E610_WXH1AB7NSTZ3
  grub2/update_nvram: true
  grub2/kfreebsd_cmdline_default: quiet
  grub-pc/chainload_from_menu.lst: true
  grub-pc/hidden_timeout: false
  grub-pc/install_devices_empty: false
  grub2/force_efi_extra_removable: false
  grub-pc/install_devices_disks_changed:
  grub-pc/install_devices_failed_upgrade: true
  grub-pc/timeout: 5
  grub-pc/partition_description:


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