Ubuntu [Unity] 24.04 ---> 26.04

Support and Help
21

Summary: Ubuntu Unity 24.04 Upgrade To Ubuntu Unity 26.04 using Software Updater.

The update completes, boots, and asks for my Password. However, anything I type is ignored. I manually boot and get a Kernel Panic:
VFS: Unable to mount root fs on unknown-block(0,0)

I can boot the 2 older kernels:vmlinuz-6.14.0-36-generic and vmlinuz-6.14.0-37-generic from grub.

From an older post, it appears the initramfs is missing. So I did this:

sudo update-initramfs -u -k 7.0.0-30-generic
sudo update-grub
sudo reboot

Now Kernel 7.0.0-30-generic BOOTS!!!

lsb_release -a
No LSB modules are available. 
Distributor ID: Ubuntu 
Description:    Ubuntu 26.04.1 LTS 
Release:        26.04 
Codename:       resolute

However, there are 2 obvious problems:

  1. The alacarte and the Internet Icons are missing from the Desktop Top Display Bar for 2 out of every 3 Boots i.e. this is not consistent. If I try multiple boots the 2 Icons may or may not appear. This scares me because what else is inconsistent ???

  2. Ethernet is not working, and no wifi options are shown when I click the Internet Icon. In Konsole I do this:

lspci -nn -d 14e4: 
05:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4352 802.11ac Dual Band Wirele
ss Network Adapter [14e4:43b1] (rev 03)

which tells me it is not Broadcom software that is the problem. (If I boot from 24.04, ethernet and wifi all work fine.)

What to do here?? If there is no quick fix, then I will restore back to 24.04 until the problems can be resolved.

I’m wondering if these problems are related to Ubuntu UNITY 26.04 since it was not released until early August?? If so, I’m sure others will encounter the same issues.

Can someone help me get the ‘powers that be’ made aware of these problems, including the Kernel Panic issue.

If I could be made aware of when the problems have been resolved, I will try and update to 26.04 again.

Thanks for all the help,
M…

22

This is indication that initrd is either missing or corrupt. Show

ls -l /boot

and explain which kernel fails to boot with this panic.

23

Hi.
As I explained in my previous post, I resolved the Kernel Panic with this:

sudo update-initramfs -u -k 7.0.0-30-generic
sudo update-grub
sudo reboot

Of course this is only repaired on MY copy of Kernel 7.0.0-30 generic.The ubuntu software developers need to know of this.

Thanks,
M…

24

No, as I mentioned in the other thread, this specific command only queries your Mainboard for hardware info, this particular card requires an out-of-kernel-tree driver that is shipped in Ubuntu in the broadcom-sta-dkms package, you need that installed to make use of the wlan card …

Your missing ethernet support suggests that it might be the same for your wired network card but you have not given anyone here any info about which one that is yet …

6 Likes
25

Summary Revised Sep.05.2026: Ubuntu Unity 24.04 Upgrade To Ubuntu Unity 26.04 using Software Updater.

The update completes, boots, and asks for my Password. However, anything I type is ignored. I manually boot and get a Kernel Panic.
VFS: Unable to mount root fs on unknown-block(0,0)

I can boot the 2 older kernels: 6.14.0-36 and 6.14.0-37 from grub.

From an older post, it appears the initramfs is missing. So I did this in grub after booting from Kernel -6.14.0-37-generic:

sudo update-initramfs -u -k 7.0.0-30-generic
sudo update-grub
sudo reboot

Now Kernel 7.0.0-30-generic BOOTS!!!

lsb_release -a
No LSB modules are available. 
Distributor ID: Ubuntu 
Description:    Ubuntu 26.04.1 LTS 
Release:        26.04 
Codename:       resolute

However, there are a few problems:

  1. The alacarte and the Internet Icons are missing from the Desktop Top Display Bar for 2 out of every 3 Boots i.e. this is not consistent. If I try multiple boots the 2 Icons may or may not appear. (Timing problem??) This scares me because what else is inconsistent ???

  2. Ethernet is not working, and no wifi options are shown when I click the Internet Icon (when it appears). In Konsole I do this:

lspci -nn -d 14e4: 
05:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4352 802.11ac Dual Band Wirele
ss Network Adapter [14e4:43b1] (rev 03)

lspci -k  
05:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4352 802.11ac Dual Band Wireless Netw
work Adapter (rev 03) 
       Subsystem: ASUSTeK Computer Inc. BCM4352 802.11ac Dual Band Wireless Network Adapter 
       Kernel driver in use: wl 
       Kernel modules: bcma, wl

dkms status
broadcom-sta/6.30.223.271, 6.14.0-37-generic, x86_64: installed

which tells me it is not Broadcom software that is the problem. The parameters in ‘Edit Connections’ look correct. (If I boot from 24.04, ethernet and wifi all work fine.)

  1. There are inconsistencies re recognizing Data Partitions and USB’s.
    If I mount a partition, everything looks fine - I can access all the data. BUT, sometimes, If I mount a partition and look at ‘Properties’ in Nemo, I get:

The permissions of “DData” could not be determined

and I can no longer access the data in the partition. Furthermore, no mounted Partition or USB EVER show up in Konsole’s ‘media’.

  1. In Nemo, If I try to open directory as ‘Root’ or ‘Open in Terminal’, nothing happens. The request is totaly ignored.

At this point Ubuntu Unity 26.04 is not useable for me. I will go back to 24.04 and try to fix a kernel error in a new post.

I’m wondering if these problems are related to Ubuntu UNITY 26.04 since it was not released until early August?? If so, it is likely others will encounter some of these problems.

Can someone help me get the ‘powers that be’ made aware of these problems, including the Kernel Panic issue. I cannot run ubuntu-bug since there is no internet. If there is a way I can collect System Information in 26.04 saved to a USB, and then attempt filing a bug report on 24.04 ? (Even this is a problem because 26.04 won’t let me write to a USB.)

I will try and update to 26.04 again in a couple of months.

Thanks for all the help,
M…

26

Look at your dkms status: broadcom-sta/6.30.223.271, 6.14.0-37-generic, x86_64: installed

The driver is only installed for kernel 6.14. It was never compiled for 7.0.0-30-generic, kernel 7.0 has no wl module to load.

Boot into 7.0 and run:

sudo dkms install broadcom-sta/6.30.223.271 -k $(uname -r)

sudo modprobe wl

If it fails, make sure linux-headers-7.0.0-30-generic is installed.

For Ethernet and the Nemo permissions issue, run

sudo apt --fix-broken install

to complete any half-configured packages from the upgrade, and post the output of

lspci -nnk | grep -iA3 net

27

It seems that all your attempts to upgrade in-situ 24.04 to 26.04 have given you problems.

I would suggest that you download Ubuntu 26.04 ISO (or an equivalent flavour) and run a “Try Ubuntu” live session for an hour or two.

1 Like
28

In Ubuntu 26.04 they changed the mount point from:

/media/username/
to:

/run/media/username/

29

Can you install inxi sudo apt install inxi and provide results for inxi -r; apt policy broadcom-sta-dkms; sudo dmesg|grep wl

1 Like
30

Hi - okay I will try your suggestions:

Dennis_N: /run/media/username/
Yes that works. I still get Permissions Could not be Determined under Nemo properties, but I do have full access to all the Partitions and USB.

steelf: I Booted into Kernel 7.0

sudo dkms install broadcom-sta/6.30.223.271 -k $(uname-r)
uname-r: command not found

Error! Empty kernelver[0]

sudo modprobe wl
modprobe: FATAL: Module wl not found in directory /lib/modules/7.0.0-30-generic

sudo dkms install broadcom-sta/6.30.223.271 -k

Error! Empty kernelver[0]

sudo apt --fix-broken install
Error: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.

sudo dpkg --configure -a
Setting up snapd (2.76.3+ubuntu26.04)…

......
Setting up libkf5kdcraw5:amd64 (25.12.3-0ubuntu1)…
dpkg: unrecoverable fatal error, aborting:
 unable to sync directory '/var/lib/dpkg/updates': Input/output error

lspci -nnk | grep -iA3 net
00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection (2) I218-V [8086:15a1]
        DeviceName:  Onboard LAN
        Subsystem: ASUSTeK Computer Inc. Device [1043:85c4]
        Kernel driver in use: e1000e
--
05:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4352 802.11ac Dual Band Wireless Network Adapter [14e4:43b1] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Device [1043:855c]
        Kernel modules: bcma, wl
08:00.0 SATA controller [0106]: ASMedia Technology Inc. ASM1061/ASM1062 Serial ATA Controller [1b21:0612] (rev 02)

Jeremy31:

Sudo apt install inxi
 
Warning: Not using locking for read only lock file /var/lib/dpkg/lock-frontend
Warning: Not using locking for read only lock file /var/lib/dpkg/lock
Error: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.

inxi -r
Repos:
  No active apt repos in: /etc/apt/sources.list
  No active apt repos in: /etc/apt/sources.list.d/archive_uri-https_dl_winehq_org_wine-builds_ubuntu_-noble.list
  No active apt repos in: /etc/apt/sources.list.d/surfshark.list
  Active apt repos in: /etc/apt/sources.list.d/archive_uri-http_cz_archive_ubuntu_com_ubuntu-noble.sources
    1: deb http://cz.archive.ubuntu.com/ubuntu resolute main restricted
  No active apt repos in: /etc/apt/sources.list.d/cairo-dock-team-ubuntu-ppa-noble.sources
  No active apt repos in: /etc/apt/sources.list.d/cardapio-team-ubuntu-cardapio-ppa-noble.sources
  No active apt repos in: /etc/apt/sources.list.d/cardapio-team-ubuntu-unstable-noble.sources
  No active apt repos in: /etc/apt/sources.list.d/giuspen-ubuntu-ppa-noble.sources
  Active apt repos in: /etc/apt/sources.list.d/google-chrome.sources
    1: deb [arch=amd64] https://dl.google.com/linux/chrome-stable/deb/ stable main
  No active apt repos in: /etc/apt/sources.list.d/menulibre-dev-ubuntu-daily-noble.sources
  No active apt repos in: /etc/apt/sources.list.d/surfshark.sources
  No active apt repos in: /etc/apt/sources.list.d/touchegg-ubuntu-stable-noble.sources
  Active apt repos in: /etc/apt/sources.list.d/ubuntu-esm-apps.sources
    1: deb https://esm.ubuntu.com/apps/ubuntu resolute-apps-security main
  Active apt repos in: /etc/apt/sources.list.d/ubuntu-esm-infra.sources
    1: deb https://esm.ubuntu.com/infra/ubuntu resolute-infra-security main
  Active apt repos in: /etc/apt/sources.list.d/ubuntu.sources
    1: deb http://security.ubuntu.com/ubuntu/ resolute-security main restricted universe multiverse
    2: deb http://archive.ubuntu.com/ubuntu resolute resolute-updates resolute-backports main restricted universe multiverse
  No active apt repos in: /etc/apt/sources.list.d/umang-ubuntu-indicator-stickynotes-noble.sources
  No active apt repos in: /etc/apt/sources.list.d/winehq-jammy.sources
  No active apt repos in: /etc/apt/sources.list.d/xtradeb-ubuntu-apps-noble.sources

apt policy broadcom-sta-dkms
broadcom-sta-dkms:
  Installed: 6.30.223.271-29ubuntu1
  Candidate: 6.30.223.271-29ubuntu1
  Version table:
 *** 6.30.223.271-29ubuntu1 500
        500 http://cz.archive.ubuntu.com/ubuntu resolute/restricted amd64 Packages
        500 http://archive.ubuntu.com/ubuntu resolute/restricted amd64 Packages
        100 /var/lib/dpkg/status

sudo dmesg|grep wl
no output

After all of the above, I rebooted and here is what I got:
Failure: File System Check Of (Can’t read my hand wrtiting) Root File System Failed
The Root File System On /dev/sda2 required a manual FSCK

No idea what to do here - appears that Kernel 7.0 for 26.04 is clobbered.

tea-for-one: “Try Ubuntu” live session - Yes, that’s a good idea.
I will report back here after I try this.

Thanks,
M…

31

Kernel 7.0 is fine, your eSATA drive threw an I/O error during dpkg:
unable to sync directory ‘/var/lib/dpkg/updates’: Input/output error

The filesystem flipped to read-only, which is why it halted asking for a manual fsck on reboot.

Right at the (initramfs) prompt, run:

fsck -y /dev/sda2
reboot

Once you are back in:

sudo dpkg --configure -a

sudo apt --fix-broken install

And for the broadcom driver, you just had a typo !!!(uname-r without a space)!!!:

sudo dkms install broadcom-sta/6.30.223.271 -k $(uname -r)

sudo modprobe wl

1 Like