Bug#1078656: grub-pc: please use 'grub-install --disk-module=native /dev/sdX'

Martin-Éric Racine martin-eric.racine at iki.fi
Tue Aug 13 21:02:25 BST 2024


Package: grub-pc
Version: 2.06-13+deb12u1
Severity: normal

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

I've been trying to implement a chainloader (see below at /etc/grub.d/40_custom) to boot off external USB disks as needed. Finding external disks requires using GRUB's 'nativedisk', but once that has been executed, the rest of the script cannot be completed because Debian's grub-install enforces BIOS device names (hd0,msdos1) instead of bus names (ata0,msdos1). Further investigating this suggests that if Debian used 'grub-install --disk-module=native /dev/sdX' to install GRUB, this would work as expected.

Alternately, if there's any /etc/default/grub variable I can set to accomplish this, it would suit me just as well.

Thanks!
Martin-Éric

- -- Package-specific info:

*********************** BEGIN /proc/mounts
/dev/sda1 / ext4 rw,relatime,errors=remount-ro 0 0
*********************** END /proc/mounts

*********************** BEGIN /boot/grub/device.map
(hd0)	/dev/disk/by-id/ata-ST320011A_3HT48T7R
*********************** END /boot/grub/device.map

*********************** 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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$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'  cc540c15-0f8a-4933-88de-5516da7b3414
else
  search --no-floppy --fs-uuid --set=root cc540c15-0f8a-4933-88de-5516da7b3414
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=640x480
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=fi_FI
  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 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'  cc540c15-0f8a-4933-88de-5516da7b3414
else
  search --no-floppy --fs-uuid --set=root cc540c15-0f8a-4933-88de-5516da7b3414
fi
insmod png
if background_image /usr/share/desktop-base/emerald-theme/grub/grub-4x3.png; then
  set color_normal=white/black
  set color_highlight=black/white
else
  set menu_color_normal=white/black
  set menu_color_highlight=black/light-gray
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
}
set linux_gfx_mode=keep
export linux_gfx_mode
menuentry 'Debian GNU/Linux, with Linux 6.1.0-23-686-pae' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-6.1.0-23-686-pae-advanced-cc540c15-0f8a-4933-88de-5516da7b3414' {
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$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 --hint='hd0,msdos1'  cc540c15-0f8a-4933-88de-5516da7b3414
	else
	  search --no-floppy --fs-uuid --set=root cc540c15-0f8a-4933-88de-5516da7b3414
	fi
	echo	'Loading Linux 6.1.0-23-686-pae ...'
	linux	/boot/vmlinuz-6.1.0-23-686-pae root=UUID=cc540c15-0f8a-4933-88de-5516da7b3414 ro panic=15 noquiet loglevel=4 nosplash
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-6.1.0-23-686-pae
}
menuentry 'Debian GNU/Linux, with Linux 6.1.0-23-686-pae (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-6.1.0-23-686-pae-recovery-cc540c15-0f8a-4933-88de-5516da7b3414' {
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$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 --hint='hd0,msdos1'  cc540c15-0f8a-4933-88de-5516da7b3414
	else
	  search --no-floppy --fs-uuid --set=root cc540c15-0f8a-4933-88de-5516da7b3414
	fi
	echo	'Loading Linux 6.1.0-23-686-pae ...'
	linux	/boot/vmlinuz-6.1.0-23-686-pae root=UUID=cc540c15-0f8a-4933-88de-5516da7b3414 ro single panic=15
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-6.1.0-23-686-pae
}
menuentry 'Debian GNU/Linux, with Linux 6.1.0-22-686-pae' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-6.1.0-22-686-pae-advanced-cc540c15-0f8a-4933-88de-5516da7b3414' {
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$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 --hint='hd0,msdos1'  cc540c15-0f8a-4933-88de-5516da7b3414
	else
	  search --no-floppy --fs-uuid --set=root cc540c15-0f8a-4933-88de-5516da7b3414
	fi
	echo	'Loading Linux 6.1.0-22-686-pae ...'
	linux	/boot/vmlinuz-6.1.0-22-686-pae root=UUID=cc540c15-0f8a-4933-88de-5516da7b3414 ro panic=15 noquiet loglevel=4 nosplash
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-6.1.0-22-686-pae
}
menuentry 'Debian GNU/Linux, with Linux 6.1.0-22-686-pae (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-6.1.0-22-686-pae-recovery-cc540c15-0f8a-4933-88de-5516da7b3414' {
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$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 --hint='hd0,msdos1'  cc540c15-0f8a-4933-88de-5516da7b3414
	else
	  search --no-floppy --fs-uuid --set=root cc540c15-0f8a-4933-88de-5516da7b3414
	fi
	echo	'Loading Linux 6.1.0-22-686-pae ...'
	linux	/boot/vmlinuz-6.1.0-22-686-pae root=UUID=cc540c15-0f8a-4933-88de-5516da7b3414 ro single panic=15
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-6.1.0-22-686-pae
}

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

### BEGIN /etc/grub.d/20_ipxe ###
menuentry "Network boot (iPXE)" --users "" --class network {
	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'  cc540c15-0f8a-4933-88de-5516da7b3414
	else
	  search --no-floppy --fs-uuid --set=root cc540c15-0f8a-4933-88de-5516da7b3414
	fi
	linux16 /boot/ipxe.lkrn
}
### END /etc/grub.d/20_ipxe ###

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

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+ia32.bin)" {
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos1'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1'  cc540c15-0f8a-4933-88de-5516da7b3414
	else
	  search --no-floppy --fs-uuid --set=root cc540c15-0f8a-4933-88de-5516da7b3414
	fi
        linux   /boot/memtest86+ia32.bin
}
menuentry 'Memory test (memtest86+ia32.bin, serial console)' {
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos1'
	if [ x$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'  cc540c15-0f8a-4933-88de-5516da7b3414
	else
	  search --no-floppy --fs-uuid --set=root cc540c15-0f8a-4933-88de-5516da7b3414
	fi
        linux	/boot/memtest86+ia32.bin console=ttyS0,115200
}
### END /etc/grub.d/20_memtest86+ ###

### 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/35_fwupd ###
### END /etc/grub.d/35_fwupd ###

### 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.
# to boot from a USB device
menuentry "USB chainloader" {
	insmod part_msdos
	insmod ext2
	insmod fat
	insmod iso9660
	nativedisk
        set root='ata0,msdos1'
	chainloader (usb0)+1
}
### 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 /dev/disk/by-id
total 0
lrwxrwxrwx 1 root root  9 Aug 13 22:43 ata-Compaq_CRD-8481B -> ../../sr0
lrwxrwxrwx 1 root root  9 Aug 13 22:47 ata-ST320011A_3HT48T7R -> ../../sda
lrwxrwxrwx 1 root root 10 Aug 13 22:47 ata-ST320011A_3HT48T7R-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Aug 13 22:47 ata-ST320011A_3HT48T7R-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Aug 13 22:47 ata-ST320011A_3HT48T7R-part5 -> ../../sda5
lrwxrwxrwx 1 root root  9 Aug 13 22:43 usb-SAMSUNG_SP2514N_10000E000CE66B56-0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 Aug 13 22:43 usb-SAMSUNG_SP2514N_10000E000CE66B56-0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 10 Aug 13 22:43 usb-SAMSUNG_SP2514N_10000E000CE66B56-0:0-part2 -> ../../sdb2
lrwxrwxrwx 1 root root 10 Aug 13 22:43 usb-SAMSUNG_SP2514N_10000E000CE66B56-0:0-part3 -> ../../sdb3
*********************** END /dev/disk/by-id

*********************** BEGIN /dev/disk/by-uuid
total 0
lrwxrwxrwx 1 root root 10 Aug 13 22:47 0cffc75f-9b88-4375-b6fd-f624db6b5d19 -> ../../sda5
lrwxrwxrwx 1 root root 10 Aug 13 22:43 561c5eff-f74f-456c-ac71-4259021c1571 -> ../../sdb1
lrwxrwxrwx 1 root root 10 Aug 13 22:43 863ba051-7b2b-44b3-aa45-88c2bfbe5688 -> ../../sdb3
lrwxrwxrwx 1 root root 10 Aug 13 22:43 86c9b551-1c6e-4b96-9441-65ff476d25e4 -> ../../sdb2
lrwxrwxrwx 1 root root 10 Aug 13 22:47 cc540c15-0f8a-4933-88de-5516da7b3414 -> ../../sda1
*********************** END /dev/disk/by-uuid

- -- System Information:
Debian Release: 12.6
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable-debug'), (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 6.1.0-23-686-pae (SMP w/1 CPU thread; PREEMPT)
Locale: LANG=fi_FI.UTF-8, LC_CTYPE=fi_FI.UTF-8 (charmap=UTF-8), LANGUAGE=fi:en
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]  1.5.82
ii  grub-common            2.06-13+deb12u1
ii  grub-pc-bin            2.06-13+deb12u1
ii  grub2-common           2.06-13+deb12u1
ii  ucf                    3.0043+nmu1

grub-pc recommends no packages.

grub-pc suggests no packages.

- -- debconf information:
* grub2/enable_os_prober: false
* grub2/linux_cmdline: panic=15
  grub-pc/install_devices_empty: false
* grub-pc/install_devices: /dev/disk/by-id/ata-ST320011A_3HT48T7R
  grub2/update_nvram: true
  grub2/kfreebsd_cmdline_default: quiet
  grub-pc/mixed_legacy_and_grub2: true
* grub2/linux_cmdline_default: noquiet loglevel=4 nosplash
  grub-pc/disk_description:
  grub-pc/install_devices_failed_upgrade: true
  grub2/force_efi_extra_removable: false
  grub2/kfreebsd_cmdline:
  grub-pc/partition_description:
  grub-pc/install_devices_disks_changed:
  grub-pc/kopt_extracted: true
  grub-pc/hidden_timeout: true
  grub-pc/install_devices_failed: false
* grub-pc/chainload_from_menu.lst: true
  grub2/device_map_regenerated:
  grub-pc/timeout: 5
  grub-pc/postrm_purge_boot_grub: false

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