Re: number of lines on console

[Samuel Sieb]

On 6/6/24 9:02 PM, Felix Miata wrote:

Samuel Sieb composed on 2024-06-06 20:53 (UTC-0700):


Felix Miata wrote:




could help you get that started. /etc/grub.d/40_custom and 41_custom are 
designed
for custom stanza creations. If you wish their result to head the selections in
you Grub menu, you must rename whichever you choose to use so that it sorts 
before
10_linux. I use both avenues, so copy 40_custom to 06_custom, and 41_custom to
07_custom. Updates will at some point restore the original 40_custom and
41_custom, unless you keep and either empty them or make them nothing but 
comments.



This was just for a live image.  There's no need to get that crazy
complicated.  That's only for a multi-boot system.  Adding items to a
single boot system is very simple.


Adding a stanza to 40_custom is not complicated. That URL is mainly example of
configuring grub, getting to know how it does what it does, good for people who
learn better from reading and/or working with examples than reading man pages.


Fedora uses BLS now, so that information is somewhat outdated.  It 
probably still sort of works, but not the best way.

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Re: number of lines on console

[Felix Miata]

Samuel Sieb composed on 2024-06-06 20:53 (UTC-0700):

> Felix Miata wrote:

>> 
>> could help you get that started. /etc/grub.d/40_custom and 41_custom are 
>> designed
>> for custom stanza creations. If you wish their result to head the selections 
>> in
>> you Grub menu, you must rename whichever you choose to use so that it sorts 
>> before
>> 10_linux. I use both avenues, so copy 40_custom to 06_custom, and 41_custom 
>> to
>> 07_custom. Updates will at some point restore the original 40_custom and
>> 41_custom, unless you keep and either empty them or make them nothing but 
>> comments.

> This was just for a live image.  There's no need to get that crazy 
> complicated.  That's only for a multi-boot system.  Adding items to a 
> single boot system is very simple.

Adding a stanza to 40_custom is not complicated. That URL is mainly example of
configuring grub, getting to know how it does what it does, good for people who
learn better from reading and/or working with examples than reading man pages.
-- 
Evolution as taught in public schools is, like religion,
based on faith, not based on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata
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Re: number of lines on console

[Samuel Sieb]

On 6/6/24 8:45 PM, Felix Miata wrote:

Greg Woods composed on 2024-06-06T20:55 (UTC-0600):


Samuel Sieb wrote:



You could add an extra entry to the boot menu.



That's a thought. Of course one of the reasons I wanted to learn more about
the boot process is that it has changed so much since I was working as a
sysadmin, now that I'm retired I haven't kept up with everything as well as
I used to. So I have to admit that now, I don't even know how to do that.
Something else I need to learn.



could help you get that started. /etc/grub.d/40_custom and 41_custom are 
designed
for custom stanza creations. If you wish their result to head the selections in
you Grub menu, you must rename whichever you choose to use so that it sorts 
before
10_linux. I use both avenues, so copy 40_custom to 06_custom, and 41_custom to
07_custom. Updates will at some point restore the original 40_custom and
41_custom, unless you keep and either empty them or make them nothing but 
comments.


This was just for a live image.  There's no need to get that crazy 
complicated.  That's only for a multi-boot system.  Adding items to a 
single boot system is very simple.

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Re: number of lines on console

[Felix Miata]

Greg Woods composed on 2024-06-06T20:55 (UTC-0600):

> Samuel Sieb wrote:

>> You could add an extra entry to the boot menu.

> That's a thought. Of course one of the reasons I wanted to learn more about
> the boot process is that it has changed so much since I was working as a
> sysadmin, now that I'm retired I haven't kept up with everything as well as
> I used to. So I have to admit that now, I don't even know how to do that.
> Something else I need to learn.


could help you get that started. /etc/grub.d/40_custom and 41_custom are 
designed
for custom stanza creations. If you wish their result to head the selections in
you Grub menu, you must rename whichever you choose to use so that it sorts 
before
10_linux. I use both avenues, so copy 40_custom to 06_custom, and 41_custom to
07_custom. Updates will at some point restore the original 40_custom and
41_custom, unless you keep and either empty them or make them nothing but 
comments.
-- 
Evolution as taught in public schools is, like religion,
based on faith, not based on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata
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Re: number of lines on console

[Felix Miata]

Greg Woods composed on 2024-06-06 18:00 (UTC-0600):

> So I have verified that if I boot the Fedora USB stick on my desktop using
> the same monitor, the problem does not occur, and if I boot the stick on
> the laptop without the dock and with the lid open, aside from the fact that
> the text is too small to read on the 4K screen, the problem does not occur.
> When I boot this laptop from its own native OS rather than from the stick,
> I have kernel command line parameters
> (vconsole.font=latarcyrheb-sun32.psfu.gz SYSFONT=latarcyrheb-sun32.psfu.gz)
> that make the booting text larger so I can read it, and the problem also

If you have this size 32 vconsole.conf configuration on your USB stick, I 
suggest
changing it to something smaller, maybe 24, halfway between 16 & 32.

> does not occur.  It also makes the font larger that appears on the text
> consoles. This is not so great for booting from the stick though; I have a
> hard time entering these parameters correctly when editing a GRUB entry
> when I cannot check what I am typing. I also tried playing games with
> video= values, and it works while boot messages are printing, but once the
> login prompt comes up, the font is tiny again.

Reverting to mousetype is a forseeable result if vga= is used, suitable video= 
is
not used, and KMS is not engaging before gettys startup. Configuring early KMS 
in
initramfs should help if this is the situation.
-- 
Evolution as taught in public schools is, like religion,
based on faith, not based on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata
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Re: number of lines on console

[Greg Woods]

On Thu, Jun 6, 2024 at 8:24 PM Samuel Sieb  wrote:

>
>
> You could add an extra entry to the boot menu.
>

That's a thought. Of course one of the reasons I wanted to learn more about
the boot process is that it has changed so much since I was working as a
sysadmin, now that I'm retired I haven't kept up with everything as well as
I used to. So I have to admit that now, I don't even know how to do that.
Something else I need to learn.

--Greg
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Re: number of lines on console

[Samuel Sieb]

On 6/6/24 6:29 PM, Greg Woods wrote:
On Thu, Jun 6, 2024 at 7:06 PM Samuel Sieb > wrote:

You could edit the grub entry on the USB stick from another computer to
add those options.

Yes I could. But the point of having the stick is to be able to boot 
from it on any PC. I don't want to enter something that is specific to 
this laptop on the stick.


You could add an extra entry to the boot menu.
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Re: number of lines on console

[Greg Woods]

On Thu, Jun 6, 2024 at 7:06 PM Samuel Sieb  wrote:

> On 6/6/24 5:00 PM, Greg Woods wrote:
> > I hve kernel command line parameters

> (vconsole.font=latarcyrheb-sun32.psfu.gz
> > SYSFONT=latarcyrheb-sun32.psfu.gz) that make the booting text larger so
> > I can read it, and the problem also does not occur
>


> You could edit the grub entry on the USB stick from another computer to
> add those options.
>
>
Yes I could. But the point of having the stick is to be able to boot from
it on any PC. I don't want to enter something that is specific to this
laptop on the stick.

--Greg
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Re: number of lines on console

[Samuel Sieb]

On 6/6/24 5:00 PM, Greg Woods wrote:
rather than from the stick, I have kernel command line parameters 
(vconsole.font=latarcyrheb-sun32.psfu.gz 
SYSFONT=latarcyrheb-sun32.psfu.gz) that make the booting text larger so 
I can read it, and the problem also does not occur.  It also makes the 
font larger that appears on the text consoles. This is not so great for 
booting from the stick though; I have a hard time entering these 
parameters correctly when editing a GRUB entry when I cannot check what 
I am typing. I also tried playing games with video= values, and it works 
while boot messages are printing, but once the login prompt comes up, 
the font is tiny again. I suppose there must be a solution to this 
somewhere but I have already spent  enough time on it. I was just hoping 
to learn a little something about the boot process.


You could edit the grub entry on the USB stick from another computer to 
add those options.

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Re: number of lines on console

[Greg Woods]

On Thu, Jun 6, 2024 at 2:11 PM Samuel Sieb  wrote:

> > The problem is that when it is booting,

> the latest console messages are off the bottom of the screen so that I
> > can't see what it's doing (this is on a standard 1920x1080 HD monitor in
> > this case). If the boot hangs, then of course the last few messages are
> > the crucial ones to see.
>
> That shouldn't be possible.  The number of lines is directly related to
> the screen resolution.  The only way I can see this happening is if it
> thinks there's another monitor attached with a higher resolution.  Do
> you see any information about the display resolution in the logs?
>

This is likely the problem. The machine I'm working on is a laptop that has
a 4K screen. The lid is closed so the 4K screen is not actually being used,
and the laptop is connected to the monitor through a dock, and this is
where I see the boot messages. I do this when doing console work because
when the system boots on the 4K screen, the type face is too small for this
old geezer to read.

So I have verified that if I boot the Fedora USB stick on my desktop using
the same monitor, the problem does not occur, and if I boot the stick on
the laptop without the dock and with the lid open, aside from the fact that
the text is too small to read on the 4K screen, the problem does not occur.
When I boot this laptop from its own native OS rather than from the stick,
I have kernel command line parameters
(vconsole.font=latarcyrheb-sun32.psfu.gz SYSFONT=latarcyrheb-sun32.psfu.gz)
that make the booting text larger so I can read it, and the problem also
does not occur.  It also makes the font larger that appears on the text
consoles. This is not so great for booting from the stick though; I have a
hard time entering these parameters correctly when editing a GRUB entry
when I cannot check what I am typing. I also tried playing games with
video= values, and it works while boot messages are printing, but once the
login prompt comes up, the font is tiny again. I suppose there must be a
solution to this somewhere but I have already spent  enough time on it. I
was just hoping to learn a little something about the boot process.

--Greg
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Re: number of lines on console

[Samuel Sieb]

On 6/6/24 9:00 AM, Greg Woods wrote:
I've spent about an hour searching without finding an answer. Is there 
any way from the kernel command line (i.e. by editing the GRUB entry) to 
control the number of lines on the console? I installed Fedora 39 on a 
USB stick so that I can use it to boot other computers to diagnose 
problems with the installed OS. The problem is that when it is booting, 
the latest console messages are off the bottom of the screen so that I 
can't see what it's doing (this is on a standard 1920x1080 HD monitor in 
this case). If the boot hangs, then of course the last few messages are 
the crucial ones to see.


That shouldn't be possible.  The number of lines is directly related to 
the screen resolution.  The only way I can see this happening is if it 
thinks there's another monitor attached with a higher resolution.  Do 
you see any information about the display resolution in the logs?

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Re: boot in read only

[Patrick Dupre via users]

It is fixed,

the autorelabel did not started.

>
>
> > On 6 Jun 2024, at 12:51, Patrick Dupre via users 
> >  wrote:
> >
> > I am trying to understand why I boot in a read-only mode
>
> One reason is when there are problems with the file system.
> Check dmesg for logs about the disk to confirm.
>
> Barry
>
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Re: boot in read only

[Barry]

> On 6 Jun 2024, at 12:51, Patrick Dupre via users 
>  wrote:
> 
> I am trying to understand why I boot in a read-only mode

One reason is when there are problems with the file system.
Check dmesg for logs about the disk to confirm.

Barry
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Re: number of lines on console

[Mike Wright]

On 6/6/24 09:00, Greg Woods wrote:

on a standard 1920x1080 HD monitor in this case). If
the boot hangs, then of course the last few messages are the crucial ones
to see.

Once the machine is booted, of course, then I can log in and use tools such
as "stty" to set the number of rows and cure this problem, but I need
something that will take effect during system startup before the login
prompt comes up.

These values will be used during boot but they don't kick in until about 
half way through.  You include it by adding it to /etc/default/grub and 
running grub-mkconfig -o /wherever/your/grub.cfg/is.


GRUB_GFXMODE=1920x1080
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Re: number of lines on console

[Felix Miata]

Greg Woods composed on 2024-06-06 11:26 (UTC-0600):

> Michal Schorm wrote:

> If the Full HD resolution isn't working well in your setup, you may
>> try to force a lower resolution by trying out 'video=1024x768' or
>> 'vga=0x318' kernel parameters.

> I have tried a couple of different vga values but it has no apparent
> effect; I probably just haven't hit on the right one yet. I was kind of
> hoping someone here would have already seen this problem and have some
> specific values to try. Once the current system-upgrade that is in progress
> finishes, I'll try the ones you list here.

Any valid vga= applied lasts only until a module providing working KMS loads. 
Once
KMS engages, the kernel decides the mode, unless a differing supported video= 
mode
has been applied. If KMS engages early enough, the effect of vga= may never be 
seen.

Using video= with a suitable value does normally change the mode if KMS is
working, and with an appropriate mode, output fitting the available screen space
should result. On a 1920x1080, try actually specifying 1920x1080. If that 
doesn't
help, others to try include: 1600x900, 1280x768, 1152x854 & 1024x768. @60 or an
alternate refresh rate may be appended to the video= mode, and may make a 
difference.
-- 
Evolution as taught in public schools is, like religion,
based on faith, not based on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata
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Re: number of lines on console

[Greg Woods]

On Thu, Jun 6, 2024 at 10:12 AM Michal Schorm  wrote:

>
> > The problem is that when it is booting, the latest console messages are
> off the bottom of the screen so that I can't see what it's doing
>
> How does that look exactly? I mean how are you sure there are some
> more lines you can't see ?
> Do you see the last line like a cut in half suggesting there's more
> off-screen ?
>

Yes, for one thing. Also there are times when it has stopped outputting
messages, then later starts again and a message goes by that tells me what
was hanging it up (certain things, like updating kernel packages, are slow,
so when that message goes by, I can guess that this is what it was doing
when the output temporarily stopped).

If the Full HD resolution isn't working well in your setup, you may
> try to force a lower resolution by trying out 'video=1024x768' or
> 'vga=0x318' kernel parameters.
>

I have tried a couple of different vga values but it has no apparent
effect; I probably just haven't hit on the right one yet. I was kind of
hoping someone here would have already seen this problem and have some
specific values to try. Once the current system-upgrade that is in progress
finishes, I'll try the ones you list here.

--Greg
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Re: number of lines on console

[Michal Schorm]

Hi,

> The problem is that when it is booting, the latest console messages are off 
> the bottom of the screen so that I can't see what it's doing

How does that look exactly? I mean how are you sure there are some
more lines you can't see ?
Do you see the last line like a cut in half suggesting there's more off-screen ?

If the Full HD resolution isn't working well in your setup, you may
try to force a lower resolution by trying out 'video=1024x768' or
'vga=0x318' kernel parameters.

--

Michal Schorm
Software Engineer
Core Services - Databases Team
Red Hat

--

On Thu, Jun 6, 2024 at 6:01 PM Greg Woods  wrote:
>
> I've spent about an hour searching without finding an answer. Is there any 
> way from the kernel command line (i.e. by editing the GRUB entry) to control 
> the number of lines on the console? I installed Fedora 39 on a USB stick so 
> that I can use it to boot other computers to diagnose problems with the 
> installed OS. The problem is that when it is booting, the latest console 
> messages are off the bottom of the screen so that I can't see what it's doing 
> (this is on a standard 1920x1080 HD monitor in this case). If the boot hangs, 
> then of course the last few messages are the crucial ones to see.
>
> Once the machine is booted, of course, then I can log in and use tools such 
> as "stty" to set the number of rows and cure this problem, but I need 
> something that will take effect during system startup before the login prompt 
> comes up.
>
> Thank you,
> --Greg
>
> --
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number of lines on console

[Greg Woods]

I've spent about an hour searching without finding an answer. Is there any
way from the kernel command line (i.e. by editing the GRUB entry) to
control the number of lines on the console? I installed Fedora 39 on a USB
stick so that I can use it to boot other computers to diagnose problems
with the installed OS. The problem is that when it is booting, the latest
console messages are off the bottom of the screen so that I can't see what
it's doing (this is on a standard 1920x1080 HD monitor in this case). If
the boot hangs, then of course the last few messages are the crucial ones
to see.

Once the machine is booted, of course, then I can log in and use tools such
as "stty" to set the number of rows and cure this problem, but I need
something that will take effect during system startup before the login
prompt comes up.

Thank you,
--Greg
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boot in read only

[Patrick Dupre via users]

Hello,

I am trying to understand why I boot in a read-only mode
(I have to do mount -o rw,remount /)
I found in/var/log/message

gsd-usb-protect[1905]: Failed to fetch USBGuard parameters: 
GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name is not 
activatable

 systemd[1240]: Starting xdg-document-portal.service - flatpak document portal 
service...
Jun  6 13:08:06 Teucidide gsd-media-keys[1907]: Failed to grab accelerator for 
keybinding settings:playback-random
Jun  6 13:08:06 Teucidide gsd-media-keys[1907]: Failed to grab accelerator for 
keybinding settings:screensaver
Jun  6 13:08:06 Teucidide gsd-media-keys[1907]: Failed to grab accelerator for 
keybinding settings:hibernate
Jun  6 13:08:06 Teucidide gsd-media-keys[1907]: Failed to grab accelerator for 
keybinding settings:playback-repeat
Jun  6 13:08:06 Teucidide gsd-media-keys[1907]: Failed to grab accelerator for 
keybinding settings:rotate-video-lock

Dependency failed for xdg-desktop-portal-gnome.service - Portal service (GNOME 
implementation).
Jun  6 13:08:06 Teucidide systemd[1240]: xdg-desktop-portal-gnome.service: Job 
xdg-desktop-portal-gnome.service/start failed with result 'dependency'.
Jun  6 13:08:06 Teucidide systemd[1240]: graphical-session.target - Current 
graphical user session is inactive.

gnome-terminal-[2264]: Failed to load module "pk-gtk-module"

 wireplumber[2291]: spa.bluez5: BlueZ system service is not available
Jun  6 13:08:09 Teucidide gsd-media-keys[1907]: gvc_mixer_card_get_index: 
assertion 'GVC_IS_MIXER_CARD (card)' failed
Jun  6 13:08:09 Teucidide gsd-media-keys[1907]: gvc_mixer_card_get_index: 
assertion 'GVC_IS_MIXER_CARD (card)' failed
Jun  6 13:08:09 Teucidide gsd-media-keys[1907]: Unable to get default sink

system_r:systemd_logind_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 
tclass=dir permissive=0
Jun  6 13:09:42 Teucidide systemd-logind[994]: Failed to open parent directory 
of "/boot": Permission denied
Jun  6 13:09:42 Teucidide kernel: audit: type=1400 audit(1717672182.777:304): 
avc:  denied  { getattr } for  pid=994 comm="systemd-logind" path="/boot" 
dev="sdc4" ino=2 scontext=system_u:system_r:systemd_logind_t:s0 
tcontext=system_u:object_r:unlabeled_t:s0 tclass=dir permissive=0


===
 Patrick DUPRÉ | | email: pdu...@gmx.com
===
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Re: fsck

[Patrick Dupre via users]

Sorry for the disturbance,

It was because fstab had btrfs
>
> Hello,
> 
> file -Ls /dev/sdc5
> /dev/sdc5: Linux rev 1.0 ext4 filesystem data, 
> UUID=1ea2d462-244f-4959-9a62-99a7288aa38c, volume name "root_sec" (extents) 
> (64bit) (large files) (huge files)
> 
> but
> fsck /dev/sdc5
> fsck from util-linux 2.38.1
> If you wish to check the consistency of a BTRFS filesystem or
> repair a damaged filesystem, see btrfs(8) subcommand 'check'.
> 
> Why that?
> 
> ===
>  Patrick DUPRÉ | | email: pdu...@gmx.com
> ===
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fsck

[Patrick Dupre via users]

Hello,

file -Ls /dev/sdc5
/dev/sdc5: Linux rev 1.0 ext4 filesystem data, 
UUID=1ea2d462-244f-4959-9a62-99a7288aa38c, volume name "root_sec" (extents) 
(64bit) (large files) (huge files)

but
fsck /dev/sdc5
fsck from util-linux 2.38.1
If you wish to check the consistency of a BTRFS filesystem or
repair a damaged filesystem, see btrfs(8) subcommand 'check'.

Why that?

===
 Patrick DUPRÉ | | email: pdu...@gmx.com
===
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