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frozenpenguin
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PostPosted: Tue Feb 06, 2024 4:44 am    Post subject: [Solved]Black screen when booting Reply with quote

I am booting using an EFI Stub and getting a black screen. I have already searched the internet and tried its various methods in an attempt to solve this issue yet the problem still persists. Any help would be greatly appreciated.
fstab
config
lspci


Last edited by frozenpenguin on Thu Feb 15, 2024 12:50 pm; edited 1 time in total
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NeddySeagoon
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PostPosted: Tue Feb 06, 2024 9:46 am    Post subject: Reply with quote

frozenpenguin,

Welcome to Gentoo.

Your lspci is missing. There are two copies of fstab.
Please provide
Code:
lspci -nnk

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pietinger
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PostPosted: Tue Feb 06, 2024 10:05 am    Post subject: Reply with quote

frozenpenguin,

I guess it is your missing Framebuffer:
Code:
# CONFIG_FB_VESA is not set
# CONFIG_FB_EFI is not set

See more here: https://wiki.gentoo.org/wiki/User:Pietinger/Tutorials/Manual_Configuring_Kernel_Version_6.6#Part_3_-_Must_Haves
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NeddySeagoon
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PostPosted: Tue Feb 06, 2024 10:14 am    Post subject: Reply with quote

pietinger,

Its more than that. i915=Y should give a framebuffer console if it starts without firmware.

EFI/VESA wlll only be used until the DRM framebuffer takes over. Its quite possible that will be before anything is sent to the console.
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frozenpenguin
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PostPosted: Wed Feb 07, 2024 2:34 pm    Post subject: Reply with quote

The reason for the black screen seems to be as pietinger said: CONFIG_FB_VESA and CONFIG_FB_EFI not being set. In the installed os however, iwlwifi doesn't seem to show up under the network controller when using lspci from the installed os yet show up under it when the command is run using the live cd. Meaning that I don't have internet even though the option is modulated in the kernel. The filesystem of the installed os also seems to be read only for some reason. Help would once again be appreciated.
lspci -nnk
new config
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grknight
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PostPosted: Wed Feb 07, 2024 2:43 pm    Post subject: Reply with quote

frozenpenguin wrote:
The filesystem of the installed os also seems to be read only for some reason. Help would once again be appreciated.

This is often a result of not configuring or a typo in /etc/fstab. Though there may be other reasons, a bad fstab is more likely on a new install.

You can force read-write by doing: mount -o remount,rw /
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frozenpenguin
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PostPosted: Sun Feb 11, 2024 2:44 pm    Post subject: Reply with quote

when I used
Quote:
mount -o remount,rw /
I get
Code:
mount: /: mount point not mounted or bad option.
dmesg(1) may have more information after failed mount system call
[/code][/quote]
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NeddySeagoon
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PostPosted: Sun Feb 11, 2024 3:33 pm    Post subject: Reply with quote

frozenpenguin,

Code:
dmesg(1) may have more information after failed mount system call


What is at the end of dmesg?
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frozenpenguin
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PostPosted: Mon Feb 12, 2024 1:43 am    Post subject: Reply with quote

The end of dmsg is:
Code:
xfs: unknown parameter 'default'

Also I get this when booting:
Code:
Remounting root filesystem read/write ...   
mount: /: mount point not mounted or bad option
dmesg(1) may have more more information after failed mount system call
Root filesystem could not be mounted read/write
Remounting filesystems
mount: /: mount point not mounted or bad option
dmesg(1) may have more more information after failed mount system call

default dmesg after booting without any entering any mount commands
Code:
[1.014161] XFS (nvme0n1p6): Mounting V5 Filesystem 2a859d7c-a64c-4799-889e-5d06a7303267
[1.021562] XFS (nvme0n1p6): Ending clean mount
[2.867054] xfs: Unknown parameter 'default'
[2.878253] xfs: Unknown parameter 'default'
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Hu
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PostPosted: Mon Feb 12, 2024 1:49 am    Post subject: Reply with quote

default is not a valid mount option in /etc/fstab. Did you mean defaults?
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figueroa
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PostPosted: Mon Feb 12, 2024 4:11 am    Post subject: Reply with quote

pietinger wrote:
...
See more here: https://wiki.gentoo.org/wiki/User:Pietinger/Tutorials/Manual_Configuring_Kernel_Version_6.6#Part_3_-_Must_Haves

I had not encountered this series of yours until seeing this post. After reading quickly through it and the base article at https://wiki.gentoo.org/wiki/User:Pietinger/Tutorials/Manual_kernel_configuration I can see that your efforts will help me further refine my own kernel.

Thanks for your work.
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PostPosted: Mon Feb 12, 2024 1:30 pm    Post subject: Reply with quote

figueroa wrote:
Thanks for your work.

You are very Welcome ... and thank you for your kind words. :D
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frozenpenguin
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PostPosted: Thu Feb 15, 2024 12:49 pm    Post subject: Reply with quote

After fixing the typo in fstab, the system now boots correctly. Thank you all for your assistance
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grknight
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PostPosted: Thu Feb 15, 2024 1:47 pm    Post subject: Reply with quote

FWIW "defaults,noatime" is the same as "noatime" because "defaults" is a column placeholder when there is nothing else to put there.
Having "defaults" is a noop so it will neither hurt nor help if there is another option next to it.
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