Package: initramfs-tools
Version: 0.139
Severity: important
Dear Maintainer,
I understand that separate /usr is deprecated, but many users do not
have the luxury of wiping and reinstalling their entire system. Rather,
a simple dist-upgrade procedure is expected to produce a working system,
making a best effort to migrate previously supported configurations.
Given that, upgrading a system to buster will break booting if the
following two conditions are true:
* /usr is a mount for a separate block device
* The block device containing the /usr filesystem is a LVM volume.
The reason is because the script
/usr/share/initramfs-tools/scripts/local-top/lvm2 only attempts to
activate the root and resume devices, and no other devices.
Unfortunately, systemd which has been introduced with buster introduces
a new boot dependency on /usr.
I have created the following workaround:
# DEV=$(lsblk -p -f -l | grep '\/usr' | awk '{print $1}' | sed 's/\//\\\//g');
cat /usr/share/initramfs-tools/scripts/local-top/lvm2 | sed 's/^exit
0$/activate "'${DEV}'"; exit 0/' > /etc/initramfs-tools/scripts/local-top/lvm2
This produces the following diff:
# diff -u /usr/share/initramfs-tools/scripts/local-top/lvm2
/etc/initramfs-tools/scripts/local-top/lvm2
--- /usr/share/initramfs-tools/scripts/local-top/lvm2 2019-06-21
02:59:13.000000000 -0500
+++ /etc/initramfs-tools/scripts/local-top/lvm2 2021-01-12
21:20:36.000000000 -0600
@@ -62,4 +62,4 @@
activate "$ROOT"
activate "$resume"
-exit 0
+activate "/dev/mapper/debian--lenny--i386-usr"; exit 0
Another part of the initramfs scripts mounts a separate /usr filesystem
if the block device exists; this workaround is strictly to ensure the
LVM device is activated so that the later code can actually mount it.
-- Package-specific info:
-- initramfs sizes
-rw-r--r-- 1 root root 26M Jan 12 20:49 /boot/initrd.img-5.4.0-2-686-pae
-rw-r--r-- 1 root root 27M Jan 12 20:49 /boot/initrd.img-5.8.0-0.bpo.2-686-pae
-rw-r--r-- 1 root root 27M Jan 12 20:48 /boot/initrd.img-5.9.0-0.bpo.2-686-pae
-- /proc/cmdline
BOOT_IMAGE=/vmlinuz-5.9.0-0.bpo.2-686-pae
root=/dev/mapper/debian--lenny--i386-root ro elevator=noop quiet
-- /proc/filesystems
ext3
ext2
ext4
fuseblk
-- lsmod
Module Size Used by
openafs 1720320 2
cirrus 16384 0
sg 28672 0
drm_kms_helper 151552 3 cirrus
cec 40960 1 drm_kms_helper
virtio_balloon 24576 0
joydev 24576 0
evdev 20480 4
serio_raw 20480 0
pcspkr 16384 0
button 20480 0
drm 372736 3 cirrus,drm_kms_helper
fuse 102400 1
configfs 32768 1
ip_tables 24576 0
x_tables 28672 1 ip_tables
autofs4 40960 2
ext4 565248 5
crc16 16384 1 ext4
mbcache 16384 1 ext4
jbd2 90112 1 ext4
crc32c_generic 16384 5
dm_mod 106496 26
sd_mod 49152 3
sr_mod 24576 0
t10_pi 16384 1 sd_mod
crc_t10dif 20480 1 t10_pi
crct10dif_generic 16384 1
cdrom 53248 1 sr_mod
crct10dif_common 16384 2 crct10dif_generic,crc_t10dif
ata_generic 16384 0
virtio_net 45056 0
net_failover 20480 1 virtio_net
failover 16384 1 net_failover
ata_piix 32768 2
uhci_hcd 45056 0
libata 188416 2 ata_piix,ata_generic
ehci_hcd 65536 0
scsi_mod 176128 4 sd_mod,libata,sr_mod,sg
psmouse 131072 0
virtio_pci 24576 0
virtio_ring 28672 3 virtio_net,virtio_balloon,virtio_pci
virtio 16384 3 virtio_net,virtio_balloon,virtio_pci
i2c_piix4 28672 0
usbcore 196608 2 ehci_hcd,uhci_hcd
usb_common 16384 3 ehci_hcd,uhci_hcd,usbcore
floppy 57344 0
-- /etc/initramfs-tools/modules
-- /etc/kernel-img.conf
# This is a sample /etc/kernel-img.conf file
# See kernel-img.conf(5) for details
# If you want the symbolic link (or image, if move_image is set) to be
# stored elsewhere than / set this variable to the dir where you
# want the symbolic link. Please note that this is not a Boolean
# variable. This may be of help to loadlin users, who may set both
# this and move_image. Defaults to /. This can be used in conjunction
# with all above options except link_in_boot, which would not make
# sense. (If both image_dest and link_in_boot are set, link_in_boot
# overrides).
image_dest = /
# This option manipulates the build link created by recent kernels. If
# the link is a dangling link, and if a the corresponding kernel
# headers appear to have been installed on the system, a new symlink
# shall be created to point to them.
#relink_build_link = YES
# If set, the preinst shall silently try to move /lib/modules/version
# out of the way if it is the same version as the image being
# installed. Use at your own risk.
#clobber_modules = NO
# If set, does not prompt to continue after a depmod problem in the
# postinstall script. This facilitates automated installs, though it
# may mask a problem with the kernel image. A diag‐ nostic is still
# issued. This is unset be default.
# ignore_depmod_err = NO
# These setting are for legacy postinst scripts only. newer postinst
# scripts from the kenrel-package do not use them
do_symlinks = yes
do_bootloader = no
do_initrd=yes
link_in_boot=no
-- /etc/initramfs-tools/initramfs.conf
MODULES=most
BUSYBOX=auto
KEYMAP=n
COMPRESS=lz4
DEVICE=
NFSROOT=auto
RUNSIZE=10%
FSTYPE=auto
-- /etc/initramfs-tools/update-initramfs.conf
update_initramfs=yes
backup_initramfs=no
-- mkinitramfs hooks
/etc/initramfs-tools/hooks/:
/usr/share/initramfs-tools/hooks:
dmsetup
fsck
keymap
klibc-utils
kmod
lvm2
reiserfsprogs
resume
thermal
thin-provisioning-tools
udev
zz-busybox
-- System Information:
Debian Release: 10.7
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: i386 (i686)
Kernel: Linux 5.9.0-0.bpo.2-686-pae (SMP w/1 CPU core)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages initramfs-tools depends on:
ii initramfs-tools-core 0.139
ii linux-base 4.6
initramfs-tools recommends no packages.
Versions of packages initramfs-tools suggests:
ii bash-completion 1:2.8-6
-- Configuration Files:
/etc/initramfs-tools/modules changed:
-- no debconf information
