The VirtualBox manual states:
[..] some Linux distributions already come with all or part of the VirtualBox Guest Additions. You may choose to keep the distribution's version of the Guest Additions but these are often not up to date and limited in functionality, so we recommend replacing them...
$ do-release-upgrade --help
Usage: do-release-upgrade [options]
Options:
-h, --help show this help message and exit
-V, --version Show version and exit
-d, --devel-release If using the latest supported release, upgrade to the
development release
--data-dir=DATA_DIR Directory that contains the data files
-p, --proposed Try upgrading to the latest release using the upgrader
from $distro-proposed
-m MODE, --mode=MODE Run in a special upgrade mode. Currently 'desktop' for
^ -- CC: @ThomasWard @L.D.James
and there is one undocumented option even, -s which is sandbox mode
then it tries to apply the distribution upgrade but this will only last until next restart and might throw errors when applying grub entries
I am trying to upgrade my Ubuntu installation to version 18.04 from 16.04
I was not offered any upgrade with the software upgrade so I tried to do it using command lines and I followed this set of commands: https://linuxconfig.org/how-to-upgrade-to-ubuntu-18-04-lts-bionic-beaver
But I am gettin...
hi. IRC channel of ubuntu is so unhelpfull so I come here in the hope to get some answers, may be. I have Arc6Dark theme installed and running but the status menu and dock do not take the main colr theme. IS this a bug of the theme? of the shell ? of the dock ? of ubuntu ? not a bug ? is there a work-around ? see for yourself imgur.com/a/jlcuiM8
@solsTiCe, I am not sure if it's a bug, Why not post the question, supply link to the theme you download, give example why it looks different from expected, and the guys will be able to help you, but currently it's hard to guess the problem. I think it's better to post the question with more information
NP. I'm busy typing my question. I'm trying to not be too wordy :)
I haven't been able to get it to work on BIOS. I tried a number of things.
(1) As you said, just replace linuxefi with linux, and initrdefi with initrd.
(2) I opened the ISO with Archive Manager and saw that the only vmlinuz was /casper/vmlinuz.efi, and the only initrd was /casper/initrd.lz. So, I changed /live/vmlinuz to /casper/vmlinuz.efi, and /live/initrd.img to /casper/initrd.lz. This didn't look right, of course, and it failed with a kernel panic!
I tried a couple of other things, but nothing has worked.
something weird. I made amistake in a shebang and use #/usr/bin/python. and a the cursor becomes a cross other my browser window. and now I discover a file called random which is a PS script file of a screenshot of my brwoser windows (because I click on the browser window with the arow cursor). Why is that ? what i the program run by mistake because of the wrong shebang ?
@Fabby Thanks. I'm going to make the changes, reboot, and see if it works :) A couple of questions… 1. Was I on the right track by looking in the Archive Manager and seeing /casper? 2. I notice username=user. Should I change the user?
Oh dear. Lubuntu was the next on my list! Perhaps I'll wait until I've got a new computer with EFI (this one is getting slow now). I'll try again then.
ok. so because of the wrong shebang python was not use but a shell and run import random. which is some weird screen capture thing.It save it as random. that'all see stackoverflow.com/q/45849176/283067
menuentry " ---------- Operating Systems ----------" {
true
}
menuentry "FreeDOS" {
echo FreeDOS assumes a BIOS, and does not work with UEFI.
echo BIOS also does not handle hard disks with large sectors (they are hard-coded to 512-byte sectors)
echo
echo so set the UEFI firmware to legacy and boot a FreeDOS USB stick
read
}
menuentry "Lubuntu 64-bit ISO (Checking)" {
set ISOFile="/opt/Live-ISOs/lubuntu-16.04.3-desktop-amd64.iso"
loopback loop (hd2,gpt2)$ISOFile
linuxefi (loop)/casper/vmlinuz.efi boot=casper components config findiso=$ISOFile ip=frommedia toram=filesystem…
@Fabby Lubuntu and Ubuntu both gave kernel panics. CloneZilla worked. There was one difference: I included "username=user". I have been Googling this, but I just can't find any documentation whatsoever about what this parameter means!
I can find the Grub manual https://www.gnu.org/software/grub/manual/grub/grub.html But can I find anything about the parameter username? Not a chance!
Well, I'll just leave it for now. When I get a machine with EFI, I can try again. (My machine actually does support EFI, so I've discovered, but to use it I'd have to reinstall Linux again, which I really don't want to do.)
@user1970395 No. Unfortunately downgrading is not supported. If you attempted it you would likely get, at best, a system consisting of some parts of 17.10 and some parts of 18.04. If you need to get back to an earlier release, reinstalling is the way to go. Make sure to have any important files, like documents, backed up.
Reinstalling might not require you to restore any of your files -- especially if you have a separate /home partition -- but I recommend having a backup -- of your documents, music, videos, whatever you wouldn't want to lose -- anyway, both in general and before performing such an operation.
I upgraded to Ubuntu 18.04 and now I have no HW acceleration - thought of downgrading it somehow to bring it back to a desired state... seems like I'm out of luck
@user1970395 Indeed. I wish downgrading were supported. It never has been though. Not in Debian either, if I understand correctly. It would be a big project to make it work reliably and safely, but perhaps that will get done some day. That won't help you right now though. :(
@user1970395 I suspect you may be able to fix the graphics problem in 18.04, if you want to try to do that.
Since the upgrade to Ubuntu 18.04 (from 17.10) I started experiencing huge performance issues with video playback, both using VLC and the browser (Youtube).
The problem gets more apparent the higher quality the video is (starts at 480p, 1080p is completely unwatchable). The video is choppy to sa...
@user1970395 I think it may be useful if you were also to add the output produced by running:
ubuntu-drivers debug
I don't know much about troubleshooting problems with video drivers, though. Your question is only a few hours old. If you're willing to wait longer, people may comment to request information that is specifically useful to your situation, or may be able to give an answer. (It shouldn't be harmful to include the ubuntu-drivers output, though.) I understand if you need a properly working system ASAP and thus decide to reinstall 17.10. But if you wait longer you may get an answer.
Questions are sometimes answered in just a few hours but it's quite typical for it to take significantly longer.
Well, I can't watch anything right now and to be fair I'm quite disappointed that it simply stopped working after the upgrade - thinking about moving to another distribution. I have a bootable USB with Ubuntu 17.10 that will work just fine. It's just that usually you can find solutions even if problems arise, whereas in this situation I have no clue what may be causing the issue and it doesn't seem to make any sense
Thanks :) I think if it drivers were missing it would have been fixed by now :-\ I'll give it some time - need to go out anyway, then I'll decide what to do next
@user1970395 In conjunction with some of the other things you have tried, you might consider contacting the Vendor's site for Linux drivers. Changing distributions could prove to be a little more work on your part, whereas many vendors appear to try to provide Ubuntu specific drivers, and ofter report Ubuntu tested results.
@user1970395 It also appears that this Ubuntu support site is one of the most popular for Linux support. Most of the time when I look for something for Linux, Ubuntu is mentioned in the link description, without my specifying Ubuntu.
Chrome on Linux Ubuntu shows these weird Color/Gradient Banding, "mostly on darker images".
Mozilla Firefox shows perfect. (some say it uses dithering).
I reinstalled Ubuntu (several versions), reinstalled chrome, but nothing helped.
I''m using Linux Ubuntu as dual boot on a Windows PC. Windows...
Upon performing an upgrade from Ubuntu 17 to Ubuntu 18.04 LTS, my PC was in standby mode, thereby interrupting the last 1/4 portion of the upgrade. When trying to boot in Grub loader: "Advanced Options"; "Linux 4.7.2", the machine loads the drive and asks for password. Then the screen just goes b...
The VirtualBox manual states:
[..] some Linux distributions already come with all or part of the VirtualBox Guest Additions. You may choose to keep the distribution's version of the Guest Additions but these are often not up to date and limited in functionality, so we recommend replacing them...
I am trying to upgrade my Ubuntu installation to version 18.04 from 16.04
I was not offered any upgrade with the software upgrade so I tried to do it using command lines and I followed this set of commands: https://linuxconfig.org/how-to-upgrade-to-ubuntu-18-04-lts-bionic-beaver
But I am gettin...
I am getting below error
"umount: it seems /dev/shm is mounted multiple times"
Here is output of $cat /proc/mounts:
Please help me to resolve this.
