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#1 2018-12-05 03:50:30

Copper36
Member
Registered: 2018-11-27
Posts: 55  

GRUB update renders the machine unbootable

Hi,
Not sure if this qualifies for a bug - Devuan ASCII 64bit is installed on an iMac 5.2 and runs OK until GRUB update. There are 6 packages version 2.02~beta3-5 intended to upgrade to 2.02~beta3-5+deb9u1. Some (or maybe all) of them are the culprit. I do not see how I could block their update via Synaptic, but probably there is a way to do it in a terminal straight with apt.
So. If there is an easy way to fix it, I'd be glad to follow it. I'm just afraid I might forget about these packages and update them automatically some time...

Thank you.

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#2 2018-12-05 13:45:40

zephyr
Member
From: as where the crow flies native
Registered: 2016-12-01
Posts: 409  
Website

Re: GRUB update renders the machine unbootable

Copper36 wrote:
I do not see how I could block their update via Synaptic, but probably there is a way to do it in a terminal straight with apt.

To block a package use...

sudo apt-mark hold <package-name>

to unblock or unhold

sudo apt-mark unhold <package-name>

Hope this helps and what you are asking for! smile

cheers

zephyr


CROWZ
easier to light a candle, yet curse the dark instead / experience life, or simply ...merely exist / ride the serpent / molon labe

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#3 2018-12-11 02:39:47

Copper36
Member
Registered: 2018-11-27
Posts: 55  

Re: GRUB update renders the machine unbootable

Thank you zephyr,

One more question - after I had put them on hold I do not see any changes in their status in Synaptic. It is still in the "upgreadable" list. Is it how it's supposed to be?

Thank you.

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#4 2018-12-11 11:19:10

zephyr
Member
From: as where the crow flies native
Registered: 2016-12-01
Posts: 409  
Website

Re: GRUB update renders the machine unbootable

Copper36 wrote:
One more question - after I had put them on hold I do not see any changes in their status in Synaptic. It is still in the "upgreadable" list. Is it how it's supposed to be?

Make sure package(s) is on hold by running...

sudo apt-mark showhold

You should get a list of held packages and will stay that way until you run...

sudo apt-mark unhold <package-name> 

Here is some useful info...
https://manpages.debian.org/stretch/apt … .8.en.html

cheers

zephyr


CROWZ
easier to light a candle, yet curse the dark instead / experience life, or simply ...merely exist / ride the serpent / molon labe

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#5 2018-12-18 07:19:53

spartrekus
Member
Registered: 2017-04-30
Posts: 132  

Re: GRUB update renders the machine unbootable

I found a work around is to install grub with dd.
It works and it is reliable.

The grub of devuan has some bugs, sometimes it works, sometimes not.

you can install anyhow with the classic debootstrap:
https://github.com/spartrekus/devuan-installation

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