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#1 2023-08-28 10:39:30

jclark
Member
Registered: 2015-05-26
Posts: 20

[SOLVED] After upgrade, system hangs at boot at Loading initial ram...

Hi,

I did a standard pacman -Syu command yesterday. Since then the systems hangs when it tries to load the initial ramdisk.

My system is over ten years old and has a separate /boot partition at /dev/sda2. The bootloader is grub. There is a MBR on /dev/sda.

To fix it I have tried:
- download the latest arch linux iso and  put it on a USB stick
- boot the USB stick
- mount the root disk of my system at /mnt
- mount the boot partition at /mnt/boot
- arch-chroot /mnt
- pacman -S linux grub to reinstall grub and linux
- grub-install --target=i386-pc /dev/sda
- grub-mkconfig -o /boot/grub/grub.cfg

I once added

set pager=1
set debug=all

to the generated grub.cfg file and got screens of output which ended shortly after some initrd messages which did not look like errors to me. I took a photo of the screen.

I've just tried mkinitcpio -P to reset all the initramfs's.

Any ideas what I should try now.

Thanks,
Jonathan

Last edited by jclark (2023-08-29 15:30:06)

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#2 2023-08-28 11:03:00

seth
Member
Registered: 2012-09-03
Posts: 52,591

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

Before we take a look at the photo you didn't link tongue - can you install and boot the LTS kernel?
Is there still free space on the boot partition?

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#3 2023-08-28 11:36:50

jclark
Member
Registered: 2015-05-26
Posts: 20

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

Thanks for your suggestion.

I have installed linux-lts, updated the /boot/grub/grub.cfg file, booted the lts kernel, with the same result. Hangs after Loading initial ramdisk . Still have 100MB on the boot partition.

I didn't post the photo because I read something that said they were frowned on here sad. I will now add those debug lines to the lts entry in the cfg,
and take another photo and find somewhere to stick it, and stick a link to it here.

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#4 2023-08-28 11:46:48

seth
Member
Registered: 2012-09-03
Posts: 52,591

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

You can perfectly fine upload photos eg. at imgur and link them, you're just asked to please not embed huge photos and usually to not post pictures of text, but it's going to be close to impossible to dump the actual text in your situation.

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#5 2023-08-28 11:51:38

jclark
Member
Registered: 2015-05-26
Posts: 20

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

https://photos.app.goo.gl/PGmxwnChuSkEA16g8
is I think the last screen.

More thanks  smile

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#6 2023-08-28 12:07:20

seth
Member
Registered: 2012-09-03
Posts: 52,591

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

There's a lot of GPT for "There is a MBR on /dev/sda"?

fdisk -l /dev/sda

and post your grub.cfg

Did anything outside the OS change?
BIOS update/reset? Is there a parallel windows?
https://wiki.archlinux.org/title/Partit … PT_and_MBR

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#7 2023-08-28 13:28:47

jclark
Member
Registered: 2015-05-26
Posts: 20

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

Hi,

I'm not aware anything particular changed other than what was changed by the pacman -Syu. The machine has no other OS on it, there have been no changes to the BIOS, apart from boot order as I switch between the rescue system and testing the system I care about.

fdisk -l /dev/sda

Disk /dev/sda: 465.76 GiB, 500107862016 bytes, 976773168 sectors
Disk model: Seagate BarraCud
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 89231D5D-06F8-4130-95E1-8819BA5B0A56

Device         Start       End   Sectors  Size Type
/dev/sda1       2048 956293119 956291072  456G Linux LVM
/dev/sda2  956293120 957112319    819200  400M Linux filesystem
/dev/sda3  957112320 957132799     20480   10M BIOS boot
/dev/sda4  957132800 976007167  18874368    9G Linux swap

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 ###
insmod part_gpt
insmod part_msdos
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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod lvm
insmod ext2
set root='lvmid/0v9nTT-Wczd-acX9-tFrM-IoSR-V7DV-PjWXMH/ZWJikM-MfnF-RqiY-WT0z-Txok-AIMk-sRbW6V'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint='lvmid/0v9nTT-Wczd-acX9-tFrM-IoSR-V7DV-PjWXMH/ZWJikM-MfnF-RqiY-WT0z-Txok-AIMk-sRbW6V'  a4225767-a322-46e7-99c2-a868a4c4a6da
else
  search --no-floppy --fs-uuid --set=root a4225767-a322-46e7-99c2-a868a4c4a6da
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
fi
terminal_input console
terminal_output gfxterm
if [ x$feature_timeout_style = xy ] ; then
  set timeout_style=menu
  set timeout=10
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
  set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Arch Linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-a4225767-a322-46e7-99c2-a868a4c4a6da' {
	load_video
	set gfxpayload=keep
	insmod gzio
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  182ecff5-935a-49bd-90f1-0fe487ecc782
	else
	  search --no-floppy --fs-uuid --set=root 182ecff5-935a-49bd-90f1-0fe487ecc782
	fi
	echo	'Loading Linux linux.bak ...'
	linux	/vmlinuz-linux.bak root=/dev/mapper/vg01-arch rw  loglevel=3 quiet
}
submenu 'Advanced options for Arch Linux' $menuentry_id_option 'gnulinux-advanced-a4225767-a322-46e7-99c2-a868a4c4a6da' {
	menuentry 'Arch Linux, with Linux linux.bak' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux.bak-advanced-a4225767-a322-46e7-99c2-a868a4c4a6da' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  182ecff5-935a-49bd-90f1-0fe487ecc782
		else
		  search --no-floppy --fs-uuid --set=root 182ecff5-935a-49bd-90f1-0fe487ecc782
		fi
		echo	'Loading Linux linux.bak ...'
		linux	/vmlinuz-linux.bak root=/dev/mapper/vg01-arch rw  loglevel=3 quiet
	}
	menuentry 'Arch Linux, with Linux linux.bak (recovery mode)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux.bak-recovery-a4225767-a322-46e7-99c2-a868a4c4a6da' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  182ecff5-935a-49bd-90f1-0fe487ecc782
		else
		  search --no-floppy --fs-uuid --set=root 182ecff5-935a-49bd-90f1-0fe487ecc782
		fi
		echo	'Loading Linux linux.bak ...'
		linux	/vmlinuz-linux.bak root=/dev/mapper/vg01-arch rw single 
	}
	menuentry 'Arch Linux, with Linux linux-lts' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-lts-advanced-a4225767-a322-46e7-99c2-a868a4c4a6da' {
		set pager=1
		set debug=all
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  182ecff5-935a-49bd-90f1-0fe487ecc782
		else
		  search --no-floppy --fs-uuid --set=root 182ecff5-935a-49bd-90f1-0fe487ecc782
		fi
		echo	'Loading Linux linux-lts ...'
		linux	/vmlinuz-linux-lts root=/dev/mapper/vg01-arch rw  loglevel=3 quiet
		echo	'Loading initial ramdisk ...'
		initrd	/initramfs-linux-lts.img
	}
	menuentry 'Arch Linux, with Linux linux-lts (fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-lts-fallback-a4225767-a322-46e7-99c2-a868a4c4a6da' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  182ecff5-935a-49bd-90f1-0fe487ecc782
		else
		  search --no-floppy --fs-uuid --set=root 182ecff5-935a-49bd-90f1-0fe487ecc782
		fi
		echo	'Loading Linux linux-lts ...'
		linux	/vmlinuz-linux-lts root=/dev/mapper/vg01-arch rw  loglevel=3 quiet
		echo	'Loading initial ramdisk ...'
		initrd	/initramfs-linux-lts-fallback.img
	}
	menuentry 'Arch Linux, with Linux linux-lts (recovery mode)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-lts-recovery-a4225767-a322-46e7-99c2-a868a4c4a6da' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  182ecff5-935a-49bd-90f1-0fe487ecc782
		else
		  search --no-floppy --fs-uuid --set=root 182ecff5-935a-49bd-90f1-0fe487ecc782
		fi
		echo	'Loading Linux linux-lts ...'
		linux	/vmlinuz-linux-lts root=/dev/mapper/vg01-arch rw single 
		echo	'Loading initial ramdisk ...'
		initrd	/initramfs-linux-lts-fallback.img
	}
	menuentry 'Arch Linux, with Linux linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-advanced-a4225767-a322-46e7-99c2-a868a4c4a6da' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  182ecff5-935a-49bd-90f1-0fe487ecc782
		else
		  search --no-floppy --fs-uuid --set=root 182ecff5-935a-49bd-90f1-0fe487ecc782
		fi
		echo	'Loading Linux linux ...'
		linux	/vmlinuz-linux root=/dev/mapper/vg01-arch rw  loglevel=3 quiet
		echo	'Loading initial ramdisk ...'
		initrd	/initramfs-linux.img
	}
	menuentry 'Arch Linux, with Linux linux (fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-fallback-a4225767-a322-46e7-99c2-a868a4c4a6da' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  182ecff5-935a-49bd-90f1-0fe487ecc782
		else
		  search --no-floppy --fs-uuid --set=root 182ecff5-935a-49bd-90f1-0fe487ecc782
		fi
		echo	'Loading Linux linux ...'
		linux	/vmlinuz-linux root=/dev/mapper/vg01-arch rw  loglevel=3 quiet
		echo	'Loading initial ramdisk ...'
		initrd	/initramfs-linux-fallback.img
	}
	menuentry 'Arch Linux, with Linux linux (recovery mode)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-recovery-a4225767-a322-46e7-99c2-a868a4c4a6da' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  182ecff5-935a-49bd-90f1-0fe487ecc782
		else
		  search --no-floppy --fs-uuid --set=root 182ecff5-935a-49bd-90f1-0fe487ecc782
		fi
		echo	'Loading Linux linux ...'
		linux	/vmlinuz-linux root=/dev/mapper/vg01-arch rw single 
		echo	'Loading initial ramdisk ...'
		initrd	/initramfs-linux-fallback.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/25_bli ###
if [ "$grub_platform" = "efi" ]; then
  insmod bli
fi
### END /etc/grub.d/25_bli ###

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

### BEGIN /etc/grub.d/30_uefi-firmware ###
if [ "$grub_platform" = "efi" ]; then
	fwsetup --is-supported
	if [ "$?" = 0 ]; then
		menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
			fwsetup
		}
	fi
fi
### 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 ###

It's way too long because at some point I renamed all the grub files to grub.bak (e.g. initramfs.... to initramfs....bak) to avoid deleting things, but making sure my process was genuinely recreating them. So there is lots of duplication in there.

And now I will go and re-read that link.

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#8 2023-08-28 13:35:37

jclark
Member
Registered: 2015-05-26
Posts: 20

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

I take your point about a lot of GPT....

Arch linux was installed on this machine some time around 2013 I think. That's when I partitioned the disks etc. I haven't touched the partitioning since then I don't think - it's not something I do often. I will have read up about it when I installed the system, but haven't had to think about it since.

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#9 2023-08-28 13:49:28

seth
Member
Registered: 2012-09-03
Posts: 52,591

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

Disklabel type: gpt

This is a https://wiki.archlinux.org/title/GRUB#G … structions situation - but should™ be fine (obviously it's not for some reason)

You could add some "echo    '... done'" after the initrd call to see whether we arrive there.
The screenshot suggests hd0 was closed.
Do you have https://wiki.archlinux.org/title/Instal … cpio_hooks in your mkinitcpio.conf?

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#10 2023-08-28 17:44:32

jclark
Member
Registered: 2015-05-26
Posts: 20

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

Thanks again.

I have played around with the hooks a bit. I examined the backup copy I have of the /etc/mkinitcpio.conf from a few days ago - before the pacman -Syu - and I copied the HOOKS line from that. I also tried my own which was

HOOKS= (base systemd udev autodetect modeconf keyboard keymap consolefont block lvm2 filesystem fsck)

(There may be typos in that - I have just re-typed it from notes I made at the time. The mkinitcpio -P command worked.)

System still stopped after "Loading initial ramdisk ..."

Then as you suggested I added

 echo 'Initial ramdisk loaded'

after the initrd line, and the echo message was printed. So it got past the initrd, but does that mean the initrd was succesful? It looks like I've run out of places to put echo commands.

I seem to recall back in my Redhat days in the '90s actually building my own kernel, which this feels very like I'm getting into. As I recall, the kernel and the initramfs were inextricably linked. I was not particularly hoping  to ever do that again.

I'm now trying to decide between carrying on examining why this system is refusing to boot, vs just reinstalling the whole shooting match from the latest iso. Can't say I'm really enamoured of having to do all the setup - useradd, network configuration, samba configuration, blah blah blah. Any feelings as to which will be the quicker way to get back on air?

Again, thanks for your help and advice.

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#11 2023-08-28 17:54:59

jclark
Member
Registered: 2015-05-26
Posts: 20

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

Stop press: since I posted that, I have been going through each of the six kernels I have which are linux, linux-fallback initramfs and linux recovery mode, plus the same three options for linux-lts. Both the recovery mode options got past the "Loading initial ramdisk ..." message. The screen cleared and at the top of the next screen was

:: running early hook [udev]
Starting systemd-udevd version 25

Now wondering what this means?

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#12 2023-08-28 17:56:17

jclark
Member
Registered: 2015-05-26
Posts: 20

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

In that previous post, there is a typo. The version was 254.1-1-arch.

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#13 2023-08-28 18:48:49

seth
Member
Registered: 2012-09-03
Posts: 52,591

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

pacman -Qikk systemd

and try to boot "nomodeset", also see https://wiki.archlinux.org/title/Genera … l_messages to increase the output in the early boot phase.

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#14 2023-08-28 20:33:28

jclark
Member
Registered: 2015-05-26
Posts: 20

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

pacman -Qikk systemd:

Name            : systemd
Version         : 254.1-1
Description     : system and service manager
Architecture    : x86_64
URL             : https://www.github.com/systemd/systemd
Licenses        : GPL2  LGPL2.1
Groups          : None
Provides        : nss-myhostname  systemd-tools=254.1  udev=254.1
Depends On      : acl  libacl.so=1-64  bash  cryptsetup  libcryptsetup.so=12-64  dbus  iptables  kbd  kmod  libkmod.so=2-64  hwdata  libcap  libcap.so=2-64  libgcrypt  libxcrypt  libcrypt.so=2-64  systemd-libs  libidn2  lz4  pam  libelf  libseccomp  libseccomp.so=2-64  util-linux  libblkid.so=1-64  libmount.so=1-64  xz  pcre2  audit  libaudit.so=1-64  openssl  libcrypto.so=3-64  libssl.so=3-64
Optional Deps   : libmicrohttpd: systemd-journal-gatewayd and systemd-journal-remote
                  quota-tools: kernel-level quota management
                  systemd-sysvcompat: symlink package to provide sysvinit binaries [installed]
                  systemd-ukify: combine kernel and initrd into a signed Unified Kernel Image
                  polkit: allow administration as unprivileged user [installed]
                  python: Unified Kernel Image with ukify [installed]
                  curl: systemd-journal-upload, machinectl pull-tar and pull-raw [installed]
                  gnutls: systemd-journal-gatewayd and systemd-journal-remote [installed]
                  libbpf: support BPF programs [installed]
                  libfido2: unlocking LUKS2 volumes with FIDO2 token
                  libp11-kit: support PKCS#11 [installed]
                  tpm2-tss: unlocking LUKS2 volumes with TPM2 [installed]
Required By     : at-spi2-core  bluez-utils  colord  cups  cups-filters  gcr-4  gnome-desktop-common  libcolord  libgudev  libinput  libpulse  libwacom  mdadm  media-player-info  mkinitcpio  netctl  polkit  python-pyudev  rtkit  subversion  systemd-sysvcompat  upower  vte3
Optional For    : None
Conflicts With  : nss-myhostname  systemd-tools  udev
Replaces        : nss-myhostname  systemd-tools  udev
Installed Size  : 29.65 MiB
Packager        : Christian Hesse <eworm@archlinux.org>
Build Date      : Wed Aug  9 15:07:25 2023
Install Date    : Tue Aug 15 16:24:08 2023
Install Reason  : Installed as a dependency for another package
Install Script  : Yes
Validated By    : Signature

backup file: systemd: /etc/systemd/homed.conf (Modification time mismatch)
backup file: systemd: /etc/systemd/homed.conf (Size mismatch)
backup file: systemd: /etc/systemd/homed.conf (MD5 checksum mismatch)
backup file: systemd: /etc/systemd/homed.conf (SHA256 checksum mismatch)
backup file: systemd: /etc/systemd/journald.conf (Modification time mismatch)
backup file: systemd: /etc/systemd/journald.conf (Size mismatch)
backup file: systemd: /etc/systemd/journald.conf (MD5 checksum mismatch)
backup file: systemd: /etc/systemd/journald.conf (SHA256 checksum mismatch)
backup file: systemd: /etc/systemd/resolved.conf (Modification time mismatch)
backup file: systemd: /etc/systemd/resolved.conf (Size mismatch)
backup file: systemd: /etc/systemd/resolved.conf (MD5 checksum mismatch)
backup file: systemd: /etc/systemd/resolved.conf (SHA256 checksum mismatch)
systemd: 1360 total files, 1 altered file

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#15 2023-08-28 20:51:44

jclark
Member
Registered: 2015-05-26
Posts: 20

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

Using the recovery linux-lts, and adding nomodeset, the system has booted to a certain extent. It tells me I'm in rescue mode. I can't login as root because root doesn't have a password (that's what sudo is for). So I can't get to maintenance mode. But  Alt-Ctrl-F2 gets me another terminal which I have managed to login to, despite the screen switching back to tty1 every 5 seconds (any way to turn that off, so I can work in a tty session?) I would like to look at journalctl.

So we're making progress.

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#16 2023-08-28 21:01:30

jclark
Member
Registered: 2015-05-26
Posts: 20

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

And to answer my question above, stopping lxdm.service stops the screen going back to tty1 every 5 secs

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#17 2023-08-28 21:02:23

seth
Member
Registered: 2012-09-03
Posts: 52,591

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

To unlock the root account: https://bbs.archlinux.org/viewtopic.php … 1#p2113821
And yes, journal might be very helpful.

Edit: can you boot normally when disabling lxdm?

Last edited by seth (2023-08-28 21:03:08)

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#18 2023-08-29 06:45:02

jclark
Member
Registered: 2015-05-26
Posts: 20

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

How do I mark this solved?

Thanks for all the help.

The nomodeset made it obvious it was to do with the graphics drivers. I read up about AMD radeon drivers. In the end I installed xf86-video-amdgpu, and added MODULES=(amdgpu radeon) to the mkinitcpio.conf, ran mkinitcpio -P and grub-mkconfig -o .... and everything is working again. I'm now wondering why it has been working for years without the amdgpu module (the radeon driver was in use on its own before).

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#19 2023-08-29 06:51:11

seth
Member
Registered: 2012-09-03
Posts: 52,591

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

Did your xorg config previously reference  xf86-video-amdgpu?
Otherwise lxdm starts before the GPU was initialized and therefore failed, but it's hard to say why it would not either return to the console or retry until the GPU is ready.

MODULES=(amdgpu radeon) to the mkinitcpio.conf

You most likely only want/need one of those.
Feel free to post journal and xorg log to illustrate what's going on atm and therefore might have failed before.

Mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

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#20 2023-08-29 15:37:56

jclark
Member
Registered: 2015-05-26
Posts: 20

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

Hi,

You asked earlier if there was any other change at the same time and I said No. I think what happened was that about a month ago I uninstalled linux-firmware, but didn't go on and run mkinitcpio or grub-mkconfig. Nothing broke, so I assumed I didn't need linux-firmware. When I did the pacman -Syu two nights ago, the grub change had come in, so the mkinitcpio, possibly grub-install, and grub-mkconfig ran, there was no radeon module and the console broke. The rest of this thread was you helping me find that out.

You're probably right that I only need the radeon module, but what I have is now working and I can live with an unnecessary amdgpu in the initramfs.

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#21 2023-09-13 08:14:29

radishfabio
Member
Registered: 2011-04-26
Posts: 14

Re: [SOLVED] After upgrade, system hangs at boot at Loading initial ram...

I solved adding "dis_ucode_ldr" to "GRUB_CMDLINE_LINUX_DEFAULT" in the /etc/default/grub file

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