The changes are working in jammy daily builds:
- jammy-live-server-amd64.iso @ 20220330.1
- jammy-desktop-amd64.iso @ 20220329.1
live-server
---
root@ubuntu-server:/# cat /proc/cmdline
BOOT_IMAGE=/casper/vmlinuz console=ttyS0
root@ubuntu-server:/# systemctl status -l --no-pager
This bug was fixed in the package casper - 1.468
---
casper (1.468) jammy; urgency=medium
* casper-md5check: correctly detect fsck.mode=skip if last
in /proc/cmdline, and add a hint for users (LP: #1892369)
-- Mauricio Faria de Oliveira Fri, 18 Mar 2022
18:02:14 -0300
**
** Tags removed: rls-jj-incoming
** Also affects: casper (Ubuntu Jammy)
Importance: Medium
Assignee: Mauricio Faria de Oliveira (mfo)
Status: In Progress
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** Tags added: fr-2136
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https://bugs.launchpad.net/bugs/1892369
Title:
Impossible to skip integrity test for ubuntu-server 20.04.1 iso
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** Also affects: ubuntu-release-notes
Importance: Undecided
Status: New
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Title:
Impossible to skip integrity test for ubuntu-server
** Tags added: rls-jj-incoming
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Title:
Impossible to skip integrity test for ubuntu-server 20.04.1 iso
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Unmarking as fixed in Subiquity due to the above reports.
** Changed in: subiquity
Status: Fix Released => New
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Title:
Impossible to
** Changed in: casper (Ubuntu)
Importance: Undecided => Medium
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Title:
Impossible to skip integrity test for ubuntu-server 20.04.1 iso
To
Very very nice findings @mfo, thanks a lot! That explains everything -
likely in my test I've added the parameter _before_ the line ending...
It's unfortunate we cannot break the test with ctrl_c, hopefully there's
a way for that, but if not, at least the bug in the line parsing is
fixed.
Issues reproducible with ubuntu-20.04.4-live-server-amd64.iso.
Apparently, ctrl-c does not stop the integrity check anymore
because casper-md5check runs as systemd service/disconnected
from plymouth. Per [1], iiuic. -- Well, this is _not_ a bug.
So, fsck.mode=skip is the only option available.
** Changed in: casper (Ubuntu)
Status: Fix Released => In Progress
** Changed in: casper (Ubuntu)
Assignee: (unassigned) => Mauricio Faria de Oliveira (mfo)
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We're in the process of installing 20.04 on machines at the end of a
very long VPN so the large ISO size is a real pain. To work-around the
integrity check I cracked the ISO open and replaced md5sum.txt with my
own that covered just the autoinstall files I wanted to track. I know
this isn't a
Created an account to leave this update.
20.04.4 LTS (ubuntu-20.04.4-live-server-amd64.iso) still exhibits this
behavior - adding the boot to the provided ISO does NOT skip the
integrity check. Unfortunately, in my use case, I have to use 20.04
(because 18.04 is old enough it can't recognize my
This is still completely unworkable for me. I'm installing 20.04.3 on a
rack server via the LOM, and at no time while the system was starting up
did I see anywhere I could set command line options - it went from the
firmware talking about scanning the bus to "No Signal" to the kernel
starting to
Why is this still a problem with the 20.04.03 iso image? Seriously, are
you under the impression that we all have nothing better to do with our
very limited time on this earth, why the hell is an integrity check even
the default in the first place? You can verify the checksum of the image
before
Since this is closed I created another issue for actually adding the
option to skip the test like is done in the Desktop iso.
https://bugs.launchpad.net/ubuntu/+source/casper/+bug/1929935
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Fun fact: When trying to enter the "advanced options" in the welcome
screen to notify the installer to not do an integrity check, Supermicro
IPMI KVM-Viewer has assigned the F6 Button to "Macro for send CTRL-ALT-
DELETE". Not the developers fault, I know. But you have to change this
setting each
@gpiccoli
I've mentioned this bevore in #13
> Why the heck is a CTRL+C during integrity check not
> enough expression of my will to skip that process?
Just now I am in the same hazzle again. I've pressed E during boot,
tried to apply fsck.skip=false, but via IPMI, the keyboard layout is
OK, I understand..the request then is for cancelling the integrity test
*once it has started*. Can you open a new bug, with a very clear/direct
title about this? Something like "Add a way to cancel integrity test on
Ubuntu server ISO once it has started", so we can track this feature
request over
This appears to be the case for the 20.04.2 ISO as well. There doesn't
seem to be a way to cancel the integrity check once it's started. It
would be nice to have that option so you don't have to manually edit the
boot options to bypass it.
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Sorry Ulrich, I got a bit confused. What is not true?
This Launchpad bug is about users being unable to *skip* the integrity
check. After the test from Camille and I (and you!), seems this is
indeed fixed, users *can* skip the integrity check if they want,
correct?
We are not discussing here if
Sorry, but that's not true. The integrity check, when booting from a
virtual CD-ROM, as it is common with servers equipped with remote
consoles on hardware management boards (iLO, iDRAC, CIMC tec.) still
takes ages.
The integrity check is faster instead, when the operating system is
installed in
Well, seems it's fixed for Focal/Groovy - so I marked as Fix Released.
Let us know if any issues are observed Camille and Sebastian.
Thanks,
Guilherme
** Changed in: casper (Ubuntu)
Status: Incomplete => Fix Released
** Changed in: subiquity
Status: New => Fix Released
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I was finally able to use the workaround on a Dell R740 remote console.
On the Install Ubuntu screen, click e for options, add "fsck.mode=skip"
before "quiet" on the 2nd line, then do ctrl+x to save the changes. It
skipped the integrity check successfully.
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Well...we can discuss that in a different LP heheh
I'm sure lots of people will love that idea, and a bunch of people will hate it.
I'll try to find some LP in which the discussion fits better - if I
can't find, I'll open one and add you there! Thanks,
Guilherme
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People got upset when I suggested that before...
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Title:
Impossible to skip integrity test for ubuntu-server 20.04.1 iso
To manage
Cool, I'm glad that it's being considered! I'd go with "ttyS0" - if it's
not right, patience...won't work. But there's no downside in that case,
it'll behave as it currently behaves, no output.
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On Thu, 25 Feb 2021 at 08:01, Guilherme G. Piccoli <
1892...@bugs.launchpad.net> wrote:
> (I needed to
> use a VNC connection since by default the images don't output to serial
> console, another point to improve if you ask me...)
>
If you know a way to find out where the serial console _is_ on
** Attachment added: "groovy.png"
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1892369/+attachment/5466722/+files/groovy.png
** No longer affects: ubiquity (Ubuntu)
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Sebastian / Camille, I've just tested in a virtual machine, and the
parameter "fsck.mode=skip" worked for me in both cases (Groovy and Focal
20.04.2 images); I'll attach screenshots with the results (I needed to
use a VNC connection since by default the images don't output to serial
console,
subscribed ~field-medium. This bug impacts deployments ands add very
long delays for the installation of the infra nodes.
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Title:
Impossible to
@gpiccoli: negative. 20.10-live-server-amd64.iso doesn't honor this
argument, too.
Why the heck is a CTRL+C during integrity check not enough expression of
my will to skip that process?
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Thanks a lot for your testing ! Do you mind in testing Groovy ISO [0] as well?
I'm pretty sure it worked for me.
Thanks in advance!
[0] http://releases.ubuntu.com/groovy/ubuntu-20.10-live-server-amd64.iso
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@gpiccoli: negative. 20.04.2-live iso doesn't honor this argument.
For the records: It is several minutes faster to install an ubuntu 18.04
iso (via IPMI virtual media) and then do a do-release-upgrade to ubuntu
20.40 than a clean Ubuntu 20.04 install via IPMI virtual media with
integrity check.
IIRC I was able to use the parameter Dimitri suggested on Groovy ISO, but it
didn't work in Focal 20.04.1 ISO. That said, we now have Ubuntu 20.04.2 ISO -
can you give it a try Sebastian, with "fsck.mode=skip" set?
This is the link for the new ISO:
I agree. I understand the situation, why this integrity check came up
and is considered as helpful for users installing their OS with a broken
USB Stick. But in case of Non-MAAS datacenter operations (SMC IPMI for
me), this feature is an entire pain. Although connected to the ISO via
an 1 GBps
Seriously, why are you asking this?
To test it, just run the installation media on any computer or virtual
machine, use real keyboard and mouse or virtual ones, this doesn't
change anything.
I didn't test the "fsck.mode=skip" command line option but this should
be an option that doesn't need the
We are still missing the information which Dimitri asked for in comment
#3. Please add some more details so that we can begin investigating
this.
** Changed in: casper (Ubuntu)
Status: Confirmed => Incomplete
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: casper (Ubuntu)
Status: New => Confirmed
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Title:
separately remote iso mounting may be slow, thus you should try
netbooting instead.
one can copy the kernel & initrd out of the iso. Boot them, with cmdline:
ip=dhcp url=http://hostname/url/to/matching-full.iso
That way, initrd will establish networking and will download iso into
ram, validate
live-server bugs go against subiquity project, rather than ubiquity.
and casper is the thing that does the integrity check.
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Title:
Impossible
You can boot with a cmdline option to skip that.
http://manpages.ubuntu.com/manpages/hirsute/en/man7/casper.7.html#recognized%20boot%20options
fsck.mode=skip
Let you skip the file system check on boot.
Can you ellaborate a bit more, and make sure that the console you are
observing
Why is this bug not fixed since nearly two months? Its extremely
annoying.
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Title:
Impossible to skip integrity test for ubuntu-server 20.04.1
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: ubiquity (Ubuntu)
Status: New => Confirmed
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Title:
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