Ubuntu Installation :: Blank Screen With Flashing Underscore After Grub
Mar 12, 2010
I've just installed ubuntu 9.10 from a live cd on to a 2nd HDD, with vista on the 1st. When I turn my PC on GRUB comes up and I can select ubuntu or vista, vista works but when I try to boot ubuntu the screen goes black with a small flashing underscore in the top left and then just goes completely black, nothing else happens after this. I've tried reinstalling from the live cd but when I go install nothing happens and the screen goes black again. When I was installing I changed the boot to something like scsi?
My PC's specs are:
Dell inspiron 531
HDD1: Ubuntu(300GB)
HDD2: Vista(1TB)
OS
Windows vista
Graphics card.
ATI radeon HD 4700 series
CPU
AMD Athleon 64 x2 6000+
Mainboard
Manufacturer : Dell
Model: 0RY206
BIOS: dell 1.0.13
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Jun 29, 2010
I installed Vista on my Acer 64-bit laptop first, then installed Ubuntu 9.10 in a dual-boot configuration. And when I start up my computer, Windows Vista is an option in the Grub menu. But when I use the grub loader to load Vista all I see is a black screen, with a flashing underscore character (it looks a lot like a terminal screen, waiting for input). The screen just stays like this, too - I timed it once, and 13 minutes later it was the same.
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May 1, 2010
I have just updated to 10.04 on my Dell Insperon 8200 laptop, and all seems well with Linux.My problem is that although it shows in Grub Windows XP will not load. I just get a blank screen with a flashing cursor.I have tried to grub-mkconfig and grub-update, both of which reported successful results.However on reboot I still get a blank screen for windows.This was not an issue with 9.04 and 9.10.so I don't think it is the machine.
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Aug 26, 2015
After an aptitude safe-update my laptop doesn't boot any more.
I recorded the following video of the boot process: [URL] ....
The disk is fine (I ran fsck), GRUB in OK. Could it be X?
I can boot in safe-mode and also have internet connection, so not everything is lost ...
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Dec 21, 2010
I recently removed Winblows Vista from my laptop and replaced it with Kubuntu 10.10 (I left the recovery partition on there, just in case). When I turn on the computer, the GRUB menu appears, I press enter, then a little flashing underscore appears on the screen in the top left hand corner. After a few seconds, the Kubuntu logo appears and I can log in.But yesterday I replace Kubuntu with Ubuntu 10.10. The Boot process is the same, but the little flashing underscore in the top left hand corner flashes for about 10 seconds longer then Kubuntu 10.10 did, and then a few paragraphs of text appears for a few seconds, then I am logged in automatically.Is this "unusual" boot process anything to worry about, or am I just being a noob.
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Feb 22, 2010
so I installed fedora 12 last night, everything was fine. Installed some things, moved music over, etc. (Dual booting with windows vista btw) So I install my graphics card driver, (ATI Radeon HD 3200) and I reboot. When I open the bootloader (I think thats what it is), It starts to boot, then just has a black screen with the flashing underscore. I can type and stuff but nothing happens.
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Nov 2, 2010
I installed Win7 after Ubuntu (10.10). I attempted to reload grub so that I would be able to run them dual boot and now I can't load anything.
I followed the guide here: [url] and went threw it a couple of times now to make sure it wasn't user error.
I am using a live cd from 10.04 because it's the only one I have. Any chance that's why it isn't working properly? I wouldn't think so, but I assume that it's possible.
If that is the case; Any way to solve it without using the live cd? I cannot burn a new disk because I have to boot from disk to use my computer right now.
I just get a flashing cursor on a blank screen when I try to load.
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Dec 24, 2010
I deleted both the partition with archlinux and the swap in order expand the windows xp partition. I am now unable to boot, just as gparted warned me. When I turn my computer on, it just goes to a black screen with a flashing underscore.
I cannot type anything, but cntrl-alt-dlt does restart. I have been attempting to restore grub and/or windows's boot method for the last 24hrs. The main things I've tried were the instructions here and using super grub disk. However, I have not been successful. I am running an Ubuntu live disk. At the moment, I just want to be able to run windows, but do not have an xp disk because this laptop was issued from my old college.
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May 28, 2010
I recently installed Ubuntu 10.04 on my Aspire One netbook, but everytime while booting, I am stuck at a blank screen with a blinking cursor. I've tried reinstalling but to no help. I've also tried installing 9.10, which will boot, then upgrading to 10.04 which then produces the same problem.
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Aug 7, 2010
I have a desktop with AMD Sempron 3000+, 1.2GB RAM, VIA S3G Unichrome Pro IGP, VIA SATA RAID controller based disks, PS/2 mouse and keyboard running Windows XP. Wanted to move to years ago favourite (linux based systems), I downloaded Ubuntu 10.04 for i386 and am trying to install both using CD as well as USB. After the Ubuntu start-up menu for installation, I select install Ubuntu option, turn off 'quiet' so that I can see what happens. The screen goes blank dark with a flashing cursor at the top.
In the kernel messages, the see that it has detected the processor, set the clock, assigned the PS/2 keyboard to input3 and then says:
[1.911624] isapnp: no plug and play device found
After this, the system hangs. Keyboard doesn't work.
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May 17, 2010
When i use my computer (whether it's going online, typing, playing a flash game, or coding) I get these "Black Flashes" that are becoming longer and more frequent. A "Black Flash" is when my computer screen turns blank (but you can still see the backlight) and i have to press the NUMpad ENTER button, shake my mouse furiously, or click my mouse, which sometimes causes undesired actions, but gets me my screen back. sometimes the Black Flashes last a milisecond or 5 seconds or i have to hold the power button and restart because it won't come back on.
Specs:
Toshiba P205-S6337 Laptop
Ubuntu Karmic Koala
2.39 GB of RAM
[Code].....
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Jun 29, 2011
I had switched over from Windows to Ubuntu and got rid of windows completely but still had the recovery partition and deleted it. I then tried to add that space to another partition, "Media." For whatever reason it deleted the "Media" partition so I used TestDisk to restore it. I did something wrong and when I rebooted my computer it would not boot so I used my LiveCD to check whats wrong and it had deleted all of my partitions and Ubuntu was nowhere to be found.
So I used TestDisk again to recover them, this time it was successful. The problem now however is that when I start my computer it does not boot into Ubuntu it just shows a black screen with the white underscore ("_") flashing in the corner. I'm not sure but I don't think it is booting into the correct partition, I think it would be trying to boot the first partition, /dev/sda1, rather than /dev/sda3. If this is the problem how could I fix it?
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Jun 29, 2011
I had switched over from Windows to Ubuntu and got rid of windows completely but still had the recovery partition and deleted it. I then tried to add that space to another partition, "Media." For whatever reason it deleted the "Media" partition so I used TestDisk to restore it. I did something wrong and when I rebooted my computer it would not boot so I used my LiveCD to check whats wrong and it had deleted all of my partitions and Ubuntu was nowhere to be found. So I used TestDisk again to recover them, this time it was successful. when I start my computer it does not boot into Ubuntu it just shows a black screen with the white underscore ("_") flashing in the corner. I'm not sure but I don't think it is booting into the correct partition, I think it would be trying to boot the first partition, /dev/sda1, rather than /dev/sda3. If this is the problem how could I fix it? I got all the boot loader information, here it is:
[code]...
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Feb 7, 2011
Running 10.04 as the only OS on a HP desktop - been running fine for months. Did an update - probably hadn't done one for a couple of months - may be a red herring. The system appeared to crash while inactive. Trying to boot - I get the Ubuntu 10.04 screen for a short while then it goes to blank screen with a flashing cursor at the top - occasionally it will give me an error that /home is not ready - skip or manual fix. I have sda1 = ext4 root
sda2 = swap
sda3 = ext4 home
sdb1 = ntfs
I removed sdb1 from fstab as initially it was complaining about this drive not being ready. The error switched to complaining about /home. I am able to mount both of those filesystems with no problem manually. I ran mke3fs on /home (I forgot the -n parameter! but no problem as I have good backups) - same error - complains about /home not being available at boot even though I can always manually mount it from live cd or manual recovery. I can rebuild this system - and I may as it was upgraded from 9.10 - I may do a fresh 10.04, but I would like to fix the boot problem in case something like this happens again when I actually care about fixing it.I recreated the grub2 configs - I don't have the command to hand, something like: sudo update-grub --root-directory=/mnt/boot/grub /dev/sda
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Jun 20, 2011
I'm using "sudo rtcwake -m disk -s 5000" or whatever the seconds is for the time I need it. It doesn't help if I use mem. Anyone know what's up or know a better program?
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Oct 19, 2010
Slack 13.0 X sometimes fails to start after boot about 50% of the time. linux says "starting X11 session" then I get a blank screen with a flashing cursor and absolutely nothing else. I can <ctrl>-<alt>-<F7> and get a text prompt, log in, and startx from a command prompt. After that, I can reboot once or twice and still get a graphic login, but will soon revert to the dumped condition. I have reinstalled X and KDE twice now as well as deleting my .kde folder. This condition started when I inadvertently ran out of disk space on my /home drive. Since then I have migrated /home to a larger drive and watch it's disk space very carefully.
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May 6, 2010
I recently followed instructions to enable the nvidia driver. run the following commands:
[Code]....
then rebooted, a tricoloured loading bar appeared and finished, then all i got was a blank screen with flashing cursor. I don't get a prompt to login and can't access my account. I am dual booting on this machine with ubuntu, is there anyway i can restore my fedora partition and enable my nvidia graphics
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Aug 5, 2010
I have an HP computer nvidia and AMD stickers on it and 1GB RAM. HDD is Parallel ATA. I downloaded both Ubuntu & Kubuntu Live CD. Both live CD's boot to a blank screen. After a (seemingly) successful install of kubuntu, the screen goes blank after GRUB.
Here are the details: With this HP, when i boot from ubuntu live CD the screen goes blank. It does not give any option about trying ubuntu, install, ubuntu, mem test. I just get a blank screen. On my ASUS laptop the ubuntu live CD goes straight into ubuntu live (without having to choose an option). It is not the CD When I boot from kubuntu live cd i get to the screen where i have an option to try kubuntu, install kubunt, memtest..
If I choose either try or install, my screen just goes blank & never progresses. Again, this live CD works on my ASUS laptop. At the bottom of the boot screen for the kubuntu live CD i noticed f1-f6 configurations. I was unable to change any other than language and f6 options. If I press f6 i get options which i can mark with an x. I don't know what any of these mean but I checked all of them and then on the boot menu popped up
BOOT **a whole bunch of text** I went onto install kubuntu and it no longer went to a blank screen. Rather it was a fuzzy grainy splash with the word KUBUNTU and loading dots underneath. Atlas it seemed to prevail, the installation process started (fuzziness went away). The installation screen now looks just as it did on my ASUS laptop. I continued through the steps with an installing on the entire HDD. The installation completed (with no signs of error). Screen said take out disc press enter.
I did so and my computer turned off. I power up the computer and the GRUB loads up. I have option of regular and fail safe. Both lead up to a blank screen. My monitor seems to think there is no signal and goes into standby mode. Perhaps the video card is not rendering correctly or not compatible.
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May 3, 2010
First let me describe my system setup. I have windows, ubuntu 64 and ubuntu 32 present. I upgraded the 32 bit version to 10.4 with no problem. After upgrading the 64 bit version is when the problem occurred. I believe it has to do with the grub.cfg file. When I would choose the 64 bit version the screen would just go black, no furthur action. After making a few changes to the 64 bit selection in grub.cfg i come to a screen that says c to continue, s to skip mounting, and m for manual mount. Pressing s gets me in. Here is a copy of my grub.cfg.
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
[Code].....
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May 15, 2011
I downloaded Ubuntu 11.04 yesterday. The ISO allowed me to install Ubuntu using Wubi and it worked just fine in Windows (I used a virtual drive to mount the ISO). I liked it enough to want to replace Linux Mint on the Laptop with it.After a LOT of trying, I was finally able to make the liveUSB of Ubuntu 11.04 32-bit version.[URL]isplays the boot menu and if I select 'try Ubuntu without installing', I am greeted with a blank screen which just does not go away until I hard reboot the system. Also, the grub I am getting is NOT the purple one which usually is the default; instead, its a dark screen with a black-n-white titled Ubuntu logo. So the question of using the NOMODESET doesn't arise at all. I am using Dell XPS 15 with dual OSes - Linux Mint and Windows 7. Both Mint and 7 are 64-bit OSes but I am trying to install Ubuntu 11.04 32-bit version.
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May 31, 2011
I am installing 11.04 on a Gigabyte E7AUM-DS2H with an onboard GeForce9400. I'm trying to turn this into an XBMC htpc. I'm not using xwindows or anything like that. Going straight to console for now. I'm experiencing the GRUB Black/Blank screen. I just don't know what else to try...
1. I've changed the kernel boot options, i.e. nomodeset
2. I've toggled the GRUB_GFXMODE=640x680 line
3. I've remembered GRUB-UPDATE
4. I can get into GRUB menu using SHIFT at bootup, messing around with settings and CLI there
5. I started with default nvidia drivers (not good), and then installed nvidia-current - that works better.
6. At the blank screen, I can hit ALT-F1 into console/tty fine.
7. If I use nosplash --verbose, I get a long wait with a blank screen, then the last bits of the bootup log and the login prompt.
8. And stuff I've forgot I've done....
Now what I really can't understand is that I have XBMC installed AND working beautifully. I can set XBMC to autorun with no trouble at all. It's just the period between bios and XBMC that it all goes dark. When I quit XBMC, I get a blinking cursor, which I can F1 to the console. What is it with GRUB??? What am I missing? Why is this so difficult? I COULD live with it, but its just not right, and I want to get it right.
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Jun 3, 2011
I recently wanted to install ubuntu 11.04 on my computer (which had vista on it and I wanted to just completely wipe that out). After the install I noticed that my monitor would not receive signal during boot (I heard the little drum noise but my monitor said no signal). So I tried following these instructions (which have worked in the past): [URL]
but when I boot the computer I don't have a GRUB menu! It just automaically starts booting ubuntu 11.04. Is this because that is the only OS I have installed? Did I do something wrong? What can I do to fix the problem?
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Jan 11, 2011
this is my first time doing a custom partition, I tried to do it with only the assistance of reading as I go, but I don't believe I found enough information last night. What I am trying to do, is put openSUSE on 200gb out of 500gb space on my external hard drive, as well as on 50gb space out of 110gb on my internal hard drive. The remaining 60gb space on my internal drive is going to be for microsoft windows. The remaining 300gb space on my external drive will be storage space. It seems like what I want to do is achievable
What I want is to have my main openSUSE on the external drive (primary partition I think?), with the GRUB loader so that when the external drive is not plugged in, my little brother can use windows on my internal hard drive. I tried this last night, and when installation had finished, I rebooted my computer and the screen was just blank black with the flashing white line as if waiting for me to type, although it would not allow me to type when I tried. It would be great if someone could tell me the order in which to partition, including the terms primary partition, extended partition, and logical partition, as needed.. I don't want to permanently muck up this machine.
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Mar 19, 2011
I am trying to install Ubuntu Server 10.10 on a computer with 5x 1.5 TB HDDs. I went through the process of partitioning the five hard drives into three partitions each:
sd*0 is a 300MB partition for /boot, RAID1, 2 active, 3 spare
sd*1 is a 500MB partition for swap, RAID1, 2 active, 3 spare
sd*2 is a 1.5TB partition for /, RAID5+LVM, 5 active, 0 spare.
md0 is the raid1 on sd*0
md1 is the raid1 on sd*1
md2 is the raid2 on sd*2
During the install, everything seemed to work fine with the formatter, but the installation ended in error. I booted into rescue mode and found that though all the drives were U (in /proc/mdstat), it was resyncing. I let this run (overnight) and the next day, jumped back in and installed the OS successfully.
However, after installing GRUB, when the installation process asked me to reboot, the system came back up with a blank screen (blank, save for a blinking cursor) and didn't move from there. I am thinking that the problem is GRUB, since I can boot into the main LVM partition via the rescue option on the install cd. Here's what bugs me:
[Code]....
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Jan 25, 2010
I installed fedora 12 to a 4GB flash usb flash drive. When I reboot and select windowsxp, grub displays a blank screen and hangs up.
[root@localhost Terry]# fdisk -l
Disk /dev/sda: 160.0 GB, 160000000000 bytes
255 heads, 63 sectors/track, 19452 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x41ab2316
Device Boot Start End Blocks Id System
[Code]....
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Jun 13, 2009
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when trying to choose the Linux partition, I found that it would just hang at a blank screen. Looking further into the problem, I had booted with the Linux Rescue and checked the /boot/grub/grub.conf file. It appeared to be that the menu was set to hidden. I got rid of that line, and checked the boot arguments. It still had acpi=off set with the kernel and everything else seems to be in order. Root is set to root (hd0,2) which should be correct.
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May 9, 2010
I am having the same problem, as soon as X tries to load my screen just goes blank. I have an ATI Radeon 9550. At first I tried switching between VGA and DVI as well but upon ruling that out, I switch to my on-board video card and that is working thus far, but I'm trying very hard to figure out a way to be able to switch back. Anyways I'll check back in later on if I have any new information I will post.
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Nov 3, 2010
I installed 10.10 of the live boot CD. It said everything went fine, now when I go to boot into Linux it just flashes the underscore on a black screen. What do I do from here?
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Jun 1, 2010
After succesfully installing Ubuntu 10.4 x32 and rebooting pc hangs on black screen with a flashing white dot in the top left corner of my screen, i've tried installing it twice with the same results.
my setup is: Asus p5q-e,
4 gig of corsair dual ram,
ati 4850 graphics,
onboard audio.
ahci mode
win 7 installed on intel ssd, and xp on a samsung 320 gb sata 2,
i had this configuration running fine for 2 months without boot loaders,
on pc start up i choose from which hdd to boot from.
i installed ubuntu on the samsung drive where it was recognised fine, wiped it all and installed automatically.
pls let me know if there is anything i missed, and advice if possible in what to do.
thanks
kannanni
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Jan 26, 2011
The day started as usual until I got the very bright idea to install Ubuntu. A new OS along side W7, that sounded great. I checked some guides on the Internet, it was all very straight forward. Install it and Grub will show you the OS:es when you boot up. I installed Ubuntu, rebooted. After the BIOS messages the screen goes blank and my screen on-button begins to blink, as if trying to find a signal, I press enter, it reboots instantly. After BIOS messages I get to a screen that says "GRUB error: uknown filesystem grub rescue>"
I've looked through everything here and nothing works. I've tried to fix the mbr-thingy using Windows Repair and even though it says "one partition was updated with new boot-thingy" when I reboot, I get into that very same grub rescue. I think my setup has something to do with it. I run RAID0 (2x360Gb hard drives), first having C: at 50Gb and then the rest as F: for programs and such. What I did was that I shrunk the F: part and then used that as partition for Ubuntu. Also please have a look at these screenshots, my partitiontables and such seems completely wacky to the raid: Where should the boot-loader go? I'm very, very new at this. I've had Ubuntu Netbook remix on my netbook for a time but still treat me as an utter beginner.
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