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Author Topic: Chromebook conversion  (Read 2091 times)

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Offline perknh

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Re: Chromebook conversion
« Reply #45 on: June 15, 2019, 08:05:03 pm »
which version of Ubuntu worked without the parameter ?

maybe you could move to the 5 series kernel, and remove the parameter.

18.04.2

Okay, I'll upgrade the kernel, but how do I remove the parameter?  I'm going to upgrade P9's kernel now.


EDIT:

Okay, I've got it! ;)

Code: [Select]
ecuaperk@peppy ~ $ dpkg -l | grep linux-image
ii  linux-image-4.18.0-21-generic         4.18.0-21.22~18.04.1                            amd64        Signed kernel image generic
ii  linux-image-generic-hwe-18.04         4.18.0.21.71                                    amd64        Generic Linux kernel image
ecuaperk@peppy ~ $

For what their worth, I've tried these instructions concerning kernel boot parameters, but the instructions to add a kernel boot parameter didn't help me.

Thank you, PCNetSpec. 
« Last Edit: June 16, 2019, 05:07:51 am by perknh »
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Offline PCNetSpec

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Re: Chromebook conversion
« Reply #46 on: June 16, 2019, 08:06:32 am »
I can easily tell you how to add the kernel boot parameter to an installed OS .. but that doesn't help recover your missing memory.

I'm trying to figure out what Ubuntu are doing differently than us where they don't require the parameter.

Am I right in assuming Ubuntu 18.04.2 uses the same 4.18 kernel as Peppermint 10 .. and it was Peppermint 10 you installed ?
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Offline perknh

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Re: Chromebook conversion
« Reply #47 on: June 16, 2019, 08:25:14 am »
Am I right in assuming Ubuntu 18.04.2 uses the same 4.18 kernel as Peppermint 10 .. and it was Peppermint 10 you installed ?

Yes, that's right!

I'm trying to figure out what Ubuntu are doing differently than us where they don't require the parameter.

Mint 19.1 Cinnamon edition doesn't require the parameter either if that offers you any clues.  It's not using the 4.18 kernel either.

Thank you, PCnetSpec
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Offline PCNetSpec

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Re: Chromebook conversion
« Reply #48 on: June 16, 2019, 08:34:06 am »
Have you tried Peppermint 9 (without the parameter) ?
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Offline perknh

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Re: Chromebook conversion
« Reply #49 on: June 16, 2019, 08:46:02 am »
Have you tried Peppermint 9 (without the parameter) ?

Yes, and just like Peppermint 10, it won't install.  Also, 4G and 2G do not help.  Only 1G works.

Right now the Chromebook is running Peppermint 9, and with the 4.18 kernel.


P.S.

I'm actually quite impressed with what a Chromebook can do when running on only 1G of memory.   It's amazing! :o
« Last Edit: June 16, 2019, 08:54:37 am by perknh »
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Offline PCNetSpec

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Re: Chromebook conversion
« Reply #50 on: June 16, 2019, 08:57:41 am »
Are you having to enter that kernel boot parameter at each boot .. or is it being entered automagically ?

What's the contents of
Code: [Select]
xed /etc/default/grub
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Offline perknh

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Re: Chromebook conversion
« Reply #51 on: June 16, 2019, 08:59:06 am »
Are you having to enter that kernel boot parameter at each boot .. or is it being entered automagically ?

It's automatic.
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Offline PCNetSpec

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Re: Chromebook conversion
« Reply #52 on: June 16, 2019, 09:00:52 am »
Has it always been automatic since installation, or did you have to manually add it ?

What's the contents of
Code: [Select]
xed /etc/default/grub
WARNING: You are logged into reality as 'root' .. logging in as 'insane' is the only safe option.

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Offline perknh

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Re: Chromebook conversion
« Reply #53 on: June 16, 2019, 09:09:34 am »
Has it always been automatic since installation, or did you have to manually add it ?

It's always been automatic,

What's the contents of
Code: [Select]
xed /etc/default/grub

Spoiler (click here to view / hide)
Code: [Select]
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX="mem=1G"

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

[close]
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Offline PCNetSpec

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Re: Chromebook conversion
« Reply #54 on: June 16, 2019, 09:25:03 am »
Do you know how to temporarily (for a single boot) boot without that parameter now Peppermint is installed .. just to test if it's still necessary ?

bare in mind I said TEMPORARILY.
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Offline perknh

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Re: Chromebook conversion
« Reply #55 on: June 16, 2019, 09:27:07 am »
Do you know how to temporarily (for a single boot) boot without that parameter now Peppermint is installed .. just to test if it's still necessary ?

bare in mind I said TEMPORARILY.

No, I don't know how to do that.  I don't know how to remove the boot parameter.
« Last Edit: June 16, 2019, 09:47:24 am by perknh »
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Offline PCNetSpec

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Re: Chromebook conversion
« Reply #56 on: June 16, 2019, 10:17:55 am »
Turn ON your PC, and as soon as your BIOS POST screen disappears, press the SHIFT key and hold it, until you are presented with the GRUB menu .. SIMILAR to this:


Select the 'default' kernel (usually the top one), and rather than pressing enter, press E to edit.

You will be presented with a screen SIMILAR to this:


Press DOWN ARROW until you get to the line that starts with:

Quote
linux /boot

and press the END key to position the cursor at the end of the that line... it *usually* ends with “quiet splash”, but should now also include "mem=1G"

Remove just the mem=1G bit, then hit Ctrl+X to boot.

did it boot ? .. and if so, what's the output from:
Code: [Select]
free -m
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Offline perknh

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Re: Chromebook conversion
« Reply #57 on: June 16, 2019, 11:06:46 am »
I've have nothing like that.  I've never seen anything like GNU GRUB.

If you could fast forward and take a quick look at this video from 9:10 - 9:40.  That is what I have, but with only option #1 which is the Chromebook's Kingston drive.

Code: [Select]
https://www.youtube.com/watch?v=AxsckwmRhfw
« Last Edit: June 16, 2019, 11:16:27 am by perknh »
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Offline PCNetSpec

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Re: Chromebook conversion
« Reply #58 on: June 16, 2019, 11:15:36 am »
If you hit option #1 are you presented with the GRUB screen ?

If not, hit option #1 then immediately start tapping the Shift key .. do you then get presented with the GRUB screen ?
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Offline perknh

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Re: Chromebook conversion
« Reply #59 on: June 16, 2019, 11:22:05 am »
If you hit option #1 are you presented with the GRUB screen ?

If not, hit option #1 then immediately start tapping the Shift key .. do you then get presented with the GRUB screen ?

No, I see SeaBIOS.  If I press Escape for the boot menu, I then see option #1 for the Kingston drive.  If I repeatedly tap Shift, the screen freezes on me.
« Last Edit: June 16, 2019, 11:23:56 am by perknh »
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