[lubuntu-devel] running update/upgrade in Lu 20.10. .. 5.8 kernel breaks video & grub connections wiped??

[Fritz Hudnut]

et al:

Got some advice on the U-MATE forum pointing out my self-sabotage in
checking the pre-release button . . . .

So I went into each of the two ubuntu installs, unchecked the pre-release
box, used synaptic to remove the 5.8 kernels, ran apt to autoremove the now
unneeded packages . . . but, so far can not edit grub to get the "5.8" to
not be the default grub bootloader . . . have to go into "advanced" and
scroll back to 5.4 kernel . . . . Messed up, but not "toasted" as I had
assumed previously. I guess I'll just keep upgrading until 5.8 kernel gets
to be "developmental" rather than SID???

On Mon, Aug 3, 2020 at 3:58 PM Fritz Hudnut <este.el.paz at gmail.com> wrote:

> bug report # 1890211  has been filed.
>
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890211
>
> On Mon, Aug 3, 2020 at 3:14 PM Fritz Hudnut <este.el.paz at gmail.com> wrote:
>
>> Gents:
>>
>> Just reporting some troubles I found when upgrading both my U-MATE &
>> Lubuntu groovy editions . . . seemingly which in each case my grub listing
>> is wiped, leaving only U-MATE as the option . . . BUT also seems like the
>> latest 5.8 kernel is messing with video, so that I see a splash screen in
>> both systems but when "video" powers up the screen goes black, no TTY
>> option . . . and when I hit power button the splash in both systems returns
>> briefly before powering down.
>>
>> I had to use SG2 disk to boot into TW to recover grub, then I used
>> "advanced options" in U-MATE and I picked kernel 5.4.0-42-generic . . . and
>> it took a couple of minutes but it booted into U-MATE log in and I'm using
>> that kernel to type this email . . . .  Haven't "nailed it down" as far as
>> how "new" of a kernel can I go, because I've already down a bunch of
>> restarts today just trying to fix grub that "ubuntu" appears to still be
>> breaking . . . but it does seem like the newest kernel (which I believe is
>> 5.8) is "not working" in a '12 Mac Pro multi-boot situation . . . it just
>> logs to black ness . . . very hard to work with, etc.
>>
>> Problem has been reported on U-MATE "Developer Discussion" sub-forum,
>> should be top thread right now by user "non_space" over there.
>>
>> F
>>
>> On Sun, Apr 12, 2020 at 8:54 AM Fritz Hudnut <este.el.paz at gmail.com>
>> wrote:
>>
>>> Update: Got over to my U-MATE 20.04 partition yesterday and in the
>>> interest of science I ran an apt update/upgrade . . . and again I got the
>>> "Where is grub?" question in the GUI.  This time I checked all three
>>> options, which turned out to again be "wrong" . . . as following the reboot
>>> ONLY U-MATE was available.  I searched the U-MATE forum and found reference
>>> to "grub hidden" ?? which seemed "similar" and I added myself to the bug
>>> report associated with it.
>>>
>>> https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1863434/
>>>
>>>
>>>
>>>>>
>>
>
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