Questions tagged [boot]
Use this tag if you have trouble booting Ubuntu or you have questions about the bootup process.
2,988
questions
535
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33
answers
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My computer boots to a black screen, what options do I have to fix it?
I am trying to boot Ubuntu on my computer. When I boot Ubuntu, it boots to a black screen. How can I fix this?
Table of Contents:
If you are trying to install Ubuntu
If you have a dual boot system
...
52
votes
20
answers
326k
views
Unable to boot into Windows after installing Ubuntu, how to fix?
I installed Windows on my computer, followed by an installation of Ubuntu. However, now I'm unable to boot into my Windows install.
What can I do to fix this?
- 913
646
votes
24
answers
756k
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How do I free up more space in /boot?
My /boot partition is nearly full and I get a warning every time I reboot my system. I already deleted old kernel packages (linux-headers...), actually I did that to install a newer kernel version ...
- 6,735
17
votes
7
answers
77k
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Can't boot into Ubuntu in Windows 10 / Ubuntu dual boot
I installed Ubuntu on a Dell XPS 13 laptop that had Windows 10 preinstalled on it. I installed it from a USB flash drive on a partition.
When I boot my computer I can only boot into Windows 10 and ...
- 293
457
votes
8
answers
1.9m
views
How do I change the GRUB boot order?
I have both Windows 7 and Ubuntu installed on a shared machine. Because a lot of the non-developers use Windows, I'd like to change the boot order to make it easier for them.
Currently the boot order ...
- 10.9k
147
votes
20
answers
556k
views
"dev/sda1: clean, ..." This message appears after I startup my laptop, then it won't continue booting
dev/sda1: clean, 552599/6111232 files, 7119295/24414464 blocks
After I turn on my laptop this message appears. The system never boots, the message just stays there.
- 1,579
58
votes
3
answers
246k
views
How do I remove "Ubuntu" in the bios boot menu? (UEFI)
See this ubuntu appears in BIOS menu (UEFI)
I have this on my Lenovo s205 too.
Is there some way to remove "ubuntu" from the menu? I don't even have it installed anymore.
- 581
388
votes
7
answers
981k
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fsck error on boot: /dev/sda6: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY
I dual boot Ubuntu and Windows 7.
I was browsing on FireFox in Ubuntu and all of a sudden I get some error message, so I rebooted.
Now when I try to boot into Ubuntu I get this message:
fsck from ...
- 3,981
449
votes
10
answers
1.5m
views
How to get to the GRUB menu at boot-time?
My system is not dual-boot, I run a standard Ubuntu desktop system "on the metal" (I think running it in a VM is the same).
Pressing c while booting does not cause the GRUB menu to appear (which I ...
- 24.8k
20
votes
2
answers
47k
views
ACPI error on every boot
I recently switched from Windows 10 to Ubuntu. So far so good, but I get these errors on every boot. I was not getting these when on Windows 10 (not sure if it is because Windows didn't have these ...
- 231
91
votes
1
answer
253k
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How do I boot into a root shell?
When booting to the graphical desktop fails we sometimes are recommended to boot into a "root shell" or to boot in "recovery mode".
How do I do that?
- 143k
130
votes
3
answers
549k
views
How to create UEFI-only bootable USB live media?
Having live media that can boot both ways can be a problem when installing Ubuntu onto currently available Windows 8 computers.
In other words the key advantage to creating UEFI-only bootable USB ...
- 28.9k
256
votes
16
answers
453k
views
How do I disable X at boot time so that the system boots in text mode?
Is it possible to disable X at boot time? I'm setting up a server so it would be nice if it wouldn't load the graphical interface every time I boot.
- 59.1k
248
votes
13
answers
1.4m
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Uninstall GRUB and use Windows bootloader
I have Windows 8 pre-installed, and then I installed GRUB with Ubuntu. Ubuntu is not my thing, so now I want to remove it along with GRUB. From what I have learned, with UEFI, GRUB does not overwrite ...
- 2,635
47
votes
1
answer
343k
views
How to install the Boot-Repair tool in an Ubuntu live disc?
When the bootloader (GRUB) is broken, I cannot access neither Ubuntu nor Windows.
I heard that an easy solution to fix this is to use the Boot-Repair tool from an Ubuntu liveCD (or liveUSB).
What ...
- 3,655
359
votes
7
answers
1.2m
views
Boot drops to a (initramfs) prompts/busybox
I am running an HP pavilion dv6000 dual boot win7 and Ubuntu 12.04. (well, up until today). After a reboot, the boot process drops to the BusyBox shell and I end up at the prompt:
BusyBox v1.18.5 (...
- 3,591
13
votes
4
answers
37k
views
How to change boot priority?
I have a laptop with Ubuntu installed as the only OS. I also have a USB stick with a Windows 7 installation on it. I want to install Windows from the USB stick on my laptop but when I try to restart ...
- 131
261
votes
12
answers
727k
views
Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
Upon trying to upgrade from 10.10 to 11.04 all seemed to go well until the restart. This error message is what comes up:
Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
...
- 2,865
44
votes
5
answers
58k
views
Can't boot without Flash Drive plugged in
I had Ubuntu 12.04 Beta installed on my computer. When 12.04 was finally released, I made a bootable USB Flash Drive using Startup Disk Creator.
Then I decided to check if this drive works properly ...
- 595
7
votes
1
answer
10k
views
Is it possible to make Ubuntu 20.04 boot faster?
I'm sorry if my question is rather newbie, because it is - but I've never bothered to tweak my Linux much. I've managed to get my Manjaro (not without some external help) cut boot time to 8-10s (by ...
- 203
66
votes
9
answers
585k
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error: file '/grub/i386-pc/normal.mod' not found
error: file '/grub/i386-pc/normal.mod' not found.
grub rescue>
What can I do? I just sit and stare at it.
I found my old netbook (Dell Inspiron 1010) which I have not used for about four years. ...
- 761
265
votes
10
answers
942k
views
How do I set the grub timeout and the grub default boot entry?
In Ubuntu 12.04 (or above), how do I set the GRUB time and the default OS (that I see at boot time) as I'm dual-booting Windows (7/8) and Ubuntu (12.04 or above)?
- 2,905
70
votes
6
answers
419k
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Grub rescue - error: unknown filesystem
I have a multiboot system set up. The system has three drives. Multiboot is configured with Windows XP, Windows 7, and Ubuntu - all on the first drive. I had a lot of unpartitioned space left on the ...
- 2,171
82
votes
5
answers
258k
views
Windows 10 upgrade led to grub rescue
I was dual-booting Windows 7 and Linux Ubuntu on my desktop, and today is the day they gave out free Windows 10 upgrades. How exciting! I got the update, and it was installing, and I left to go take ...
- 921
63
votes
8
answers
240k
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How do I get my Mac to boot from an Ubuntu USB key?
If you select "USB" and "Mac" on this download page, it gives a series of command line instructions to make a USB key which the MacBook will boot into Ubuntu from.
I've followed them to the letter ...
user11621
120
votes
5
answers
575k
views
How to get GRUB to be the default bootloader instead of Windows Boot Manager on a UEFI laptop?
I've got an HP Pavilion Touchsmart notebook that came with Windows 8. I've upgraded to 8.1, and now I want to dual-boot an Ubuntu distribution with Windows 10. When dual-booting with Windows 8.1, the ...
- 3,615
93
votes
13
answers
443k
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How can I reinstall GRUB to the EFI partition?
I want to reinstall GRUB 2 and I found these instructions:
How to Repair, Restore, or Reinstall Grub 2 with a Ubuntu Live CD or USB.
In my case, the boot loader is installed in the EFI partition. If I ...
- 1,299
88
votes
8
answers
278k
views
How to run a script during boot as root
I had a script that automatically enables my wifi without using networkmanager, but I don't know how to run the script as root while the system is booting. How do I make the script run automatically ...
- 2,392
5
votes
1
answer
5k
views
'Upgraded' to Windows 10 on dual boot, and can't boot to Ubuntu partition
I recently updated my windows 7 to 10, and destroyed grub in the process. I ran Boot-Repair on a live CD and managed to get the Windows Partition back. However grub still doesn't come up for me.
The ...
- 53
107
votes
5
answers
544k
views
How do I boot into single-user mode from GRUB?
After changing a few lines in xorg.conf, I can no longer boot Ubuntu (I assume it breaks when trying to load up X), so I need a way to boot into a single-user mode. However, there seems to be zero ...
- 1,273
31
votes
4
answers
96k
views
How to make grub menu appear instead grub minimal bash-like in booting?
This keep happening when I install the Ubuntu as a dual boot for my laptop. I get a black that appears when booting with the following messages.
Minimal BASH-like line editing is supported.
For ...
- 363
74
votes
4
answers
499k
views
How to start Ubuntu in Console mode
I want to know if there is a way to switch to console mode from the boot menu. I have an NVIDIA 1070 and every time there is an update, the GUI stops working. All I need to do is re-install the ...
- 3,433
112
votes
14
answers
327k
views
Windows 10 upgrade kills grub and boot-repair doesn't help
I've just upgraded to Windows 10 from Windows 8.1 on my partitioned laptop that has Ubuntu 14.04 installed. Grub no longer appeared on boot so I ran boot-repair from an Ubuntu liveUSB. This didn't ...
- 2,821
20
votes
3
answers
27k
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How is it easier to make a persistent live drive with Ubuntu 19.10?
Persistent live drive with a partition for persistence
There are some web sites describing
new tools
new features in [new versions of] old tools
that can create a persistent live drive from an iso ...
- 46.6k
80
votes
11
answers
134k
views
How do I improve boot speed?
I have seen many videos that make Ubuntu faster, but these methods only make desktop performance faster.
I am looking to make my computer boot faster. Is their anything I can do to make Ubuntu boot ...
- 2,794
18
votes
15
answers
147k
views
Not booting from USB or CD (SYSLINUX Message)
I am trying to install linux on my laptop, a Toshiba Satellite C6550-S5200. I did it once but something happened so I removed it then I had to destroy all data on hard drive so now I have nothing on ...
- 181
4
votes
2
answers
22k
views
Installing Ubuntu On Second Hard Drive
I have 2 1tb hard drives on my computer with Windows 8 on the first hard drive and nothing on the other.
I want to install Ubuntu 14 on the second hard drive. I've looked up some guides and they all ...
- 173
65
votes
3
answers
76k
views
Why disable Fast Boot on Windows 8 when having dual booting?
Why is everybody keep mentioning to disable Fast Boot on Windows 8 if you have installed alongside Ubuntu? Is it something that is recommended only for UEFI machines or is it a suggestion for Legacy ...
- 1,449
61
votes
9
answers
436k
views
Add Windows 10 to GRUB OS list
I recently got a computer from school. It came with Windows 8.1 installed. I then installed another copy of Windows 8.1 (so it would use the built-in Windows Pro license) and upgraded it to Windows 10....
- 1,163
101
votes
16
answers
226k
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How to create a bootable USB with multiple ISO images in it
What I want is to create a bootable pen drive that shows GRUB menu and I can select any of the several bootable systems from there to install/run. I have several ISO images that I want to install in ...
- 213k
63
votes
6
answers
150k
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How to diagnose/fix very slow boot on Ubuntu 18.04
There is a long time where SSD does nothing.
How can I find the fault and fix it ?
Already checked /etc/fstab, no swap or anything wrong there (32GB of RAM, no swap)
[ 2.173492] usb 2-1.6: New ...
- 1,719
32
votes
4
answers
261k
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Install on Second Hard Drive with startup boot option?
In theory, what I want to do is very simple, but I've done some google research and read some posts on this site and I'm still confused.
I want to keep win7 on my primary C:\ drive, and install ...
- 626
26
votes
3
answers
177k
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How to add a GRUB2 menu entry for booting installed Ubuntu on a USB drive?
I am not asking how to boot the LiveCD from a USB.
I have 2 Ubuntu installations, one on my computer's internal hard drive and another on a USB drive.
Is there a way to add a GRUB2 menu entry (to ...
- 28.4k
39
votes
4
answers
218k
views
32-Bit UEFI Boot Support
I recently purchased a Dell Venue 8 Pro. I have read online about what it needs in order to boot into Ubuntu or any other Linux distro. From what I have gathered, what really needs to happen is 32-...
- 503
17
votes
3
answers
34k
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I can't boot into a usable system after updates. What should I do?
Since some system updates, my machine can no longer boot properly. I am no Ubuntu guru. I do not have a week to spare diagnosing the issue. I just want to retrieve important data from this machine's ...
- 13.9k
215
votes
3
answers
941k
views
System has not been booted with systemd as init system (PID 1). Can't operate
I use WSL2 on Windows 11. I want to run the systemctl command in Ubuntu 20.04, but it gives me the following error:
System has not been booted with systemd as init system (PID 1).
Can't operate. ...
- 2,318
114
votes
6
answers
235k
views
How can I show or hide boot messages when Ubuntu starts?
Is there a way to easily turn on/off showing the boot messages (loading the services) when Ubuntu starts? Is it something in Grub2?
I am running 10.04.
- 10.6k
90
votes
7
answers
241k
views
How do I run update-grub from a LiveCD?
Okay, so I did something stupid. I was trying to clean up my Grub entries, and accidentally removed all of my Linux kernels from Grub (they're still on the hard drive). So now, obviously, Grub doesn'...
- 33.2k
79
votes
4
answers
916k
views
GRUB rescue problem after deleting Ubuntu partition! [duplicate]
After I deleted my Ubuntu partition, I rebooted my computer and I only get a prompt:
grub rescue >
The command ls lists
(hd0) (hd0,msdos5) (hd0,msdos3) (hd0,msdos2) (hd0,msdos1) (hd1) (hd1,...
- 791
53
votes
3
answers
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Ubuntu 16.04 slow boot (apt-daily.service)
My boot is horribly slow, and I don't know why.
$ systemd-analyze
Startup finished in 10.975s (kernel) + 49.732s (userspace) = 1min 708ms
$ systemd-analyze blame
34.971s apt-daily.service
...
- 603