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Darkshine
n00b
Joined: 06 Nov 2007
Posts: 53
Location: Kiev, Micronesia
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 Posted: Mon Oct 22, 2018 10:54 am Post subject: [Solved] Cannot boot liveCD after grub |
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I've dowloaded the latest minimal install CD iso (install-amd64-minimal-20181021T214502Z.iso) and wrote it to the USB drive. After reboot when GRUB menu appeared, I selected the default "Boot LiveCD (kernel: gentoo)". After that booting process hangs with a black screen and a frozen (non-blinking) cursor in the upper left corner.
Then I tried the following options, the behavior was not changed from the above:
1. Choose "Boot LiveCD (kernel: gentoo) (cached)".
2. Edit GRUB command line. Added all of the following kernel options:
noapic
nodetect
nodhcp
nodmraid
nofirewire
nogpm
nohotplug
nokeymap
nolapic
nosata
nosmp
nosound
nousb
nox
nonfs
scandelay
3. Convert the given iso with "isohybrid -u" command.
This is on a brand new HP Elitebook 840 G5 laptop. Note that this liveCD loads well on old HP ProBook 640.
I also tried to load from old RescueCD (from another USB drive). After GRUB booting process also hangs, but the result is more problematic: I cannot boot the laptop anymore until its battery is completely discharged. Again, everything is good on old HP ProBook 840.
I believe some driver may hang when loading, but do not know how to detect it.
Please, advise how to proceed.
Last edited by Darkshine on Tue Oct 23, 2018 8:56 pm; edited 1 time in total |
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joanandk
Apprentice
Joined: 12 Feb 2017
Posts: 169
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| Posted: Mon Oct 22, 2018 11:36 am Post subject: Re: Cannot boot liveCD after grub |
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| Darkshine wrote: |
1. Choose "Boot LiveCD (kernel: gentoo) (cached)".
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Did you try gentoo-nofb? I could imagine that Radeon hangs when trying to load the driver. |
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Darkshine
n00b
Joined: 06 Nov 2007
Posts: 53
Location: Kiev, Micronesia
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| Posted: Mon Oct 22, 2018 2:47 pm Post subject: |
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In GRUB menu there is no option to load gentoo-nofb. There are only 2 choises:
1. Boot LiveCD (kernel: gentoo)
2. Boot LiveCD (kernel: gentoo) (cached)
Both of them have the following commands:
| Code: | linux /isolinux/gentoo root=/dev/ram0 init=/linuxrc dokeymap looptype=squashfs loop=/image.squashfs cdroot
initrd /isolinux/gentoo.igz
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For the cached GRUB option the 1st command also has "docache" argument.
I tried to edit both of the commands and to change /isolinux/gentoo to /isolinux/gentoo-nofb as well as /isolinux/gentoo.igz to /isolinux/gentoo-nofb.igz. It resulted in the following errors:
| Code: |
error: file /isolinux/gentoo-nofb not found
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and
| Code: |
error: file /isolinux/gentoo-nofb.igz not found
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How to disable framebuffer for the LiveCD? |
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Darkshine
n00b
Joined: 06 Nov 2007
Posts: 53
Location: Kiev, Micronesia
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| Posted: Mon Oct 22, 2018 11:47 pm Post subject: |
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By the way, the video card is no radeon, it is Intel UHD Graphics 620.
What is its appropriate kernel module? Is it i915? |
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Darkshine
n00b
Joined: 06 Nov 2007
Posts: 53
Location: Kiev, Micronesia
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| Posted: Tue Oct 23, 2018 8:56 pm Post subject: |
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| After disabling graphics on boot in BIOS menu now it is possible to start LiveCD. |
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P.Kosunen
Guru
Joined: 21 Nov 2005
Posts: 309
Location: Finland
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| Posted: Wed Oct 24, 2018 11:08 am Post subject: Re: [Solved] Cannot boot liveCD after grub |
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| Darkshine wrote: | This is on a brand new HP Elitebook 840 G5 laptop. Note that this liveCD loads well on old HP ProBook 640.
I also tried to load from old RescueCD (from another USB drive). After GRUB booting process also hangs, but the result is more problematic: I cannot boot the laptop anymore until its battery is completely discharged. Again, everything is good on old HP ProBook 840.
I believe some driver may hang when loading, but do not know how to detect it.
Please, advise how to proceed. |
Try with latest SystemRescueCd.
http://www.system-rescue-cd.org/Download/ |
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yogeshnachnani
n00b
Joined: 04 Apr 2020
Posts: 1
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| Posted: Sat Apr 04, 2020 9:46 am Post subject: This worked for me too |
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| Darkshine wrote: | | After disabling graphics on boot in BIOS menu now it is possible to start LiveCD. |
Disabling 'Hybrid Graphics' and enabling only 'Dedicated Graphics' worked for me too, thanks.
FWIW I have a Thinkpad P1 Gen 2 with Intel + Nvidia graphics |
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Installing Gentoo
