Ubuntu :: Partition Unreadable - System Reboots Even Before Grub Appears ?
Jan 9, 2011
Last night I rebooted my desktop and it failed as in it just kept resetting after the bios post...so I changed my boot drive which gave me a "no bootable drive found" error(this confirms hdd fault) thee I booted a live cd and checked my partitions
They are as follows
sda1 - boot(ntfs)
sda2 - windows(ntfs)
sda3 - swap
sda4 - ubuntu(ext4)
I tried to mount sda4 to reinstall grub but it failed...says the partition is corrupt sda2 has no problems and I made a backup for it now the problem is how do I perform a disk check on sda4 and how do I get my system up and running again? I dont want to reinstall!
Just delete a linux partition and now when i boot a message appears and says error: unknown filesystem grub rescue >
I have search on the net for this problem and i have understand it a little. But my situation is a bit different and because i don't want to format my hard disc i wanna try to fix it. So before a couple months i download ubuntu 9.10 and i installed it a month later. But my computer used to crash all the time and i couldnt use it. So i download the latest ubuntu 10.4 and install it while having windows xp and the old ubuntu 9.10(so i had windows xp, ubuntu 9.10 and ubuntu 10.4 partitions). Now i tried to delete the partition of ubuntu 9.10 from disc utility. so i have the message i wrote above when i boot. I dont wanna delete my windows xp and ubuntu 10.4. what should i do to stop this message from appearing.
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.
So I set up my laptop dual boot with XP, now when I try to open text files, word docs, etc with get or doc files get error message with Gedit and with open office shows crazy unreadable characters?
After certain system-wide changes, like kernels updates, I obtain grub prompt on restart. However, if I put the hard drive into another computer (b), it boots up fine. Since, however, I use the present computer (a) regularly, I only use b to purge and reinstall grub using the chroot method. However, doing so every time is time consuming; and I cannot change anything in the defaults and run update-grub without obtaining a grub prompt on restart. How do I fix this?
I installed windows 7 over an existing xp partition and windows 7 made a 100 mb partition as some sort of windows swap space thing. This basically made my ubuntu partition unreadable, even with gparted. How to recover this data?
I downloaded and installed Ubuntu desktop on 9/26/10. Not sure what version that would be but that is my download date. Running a dual boot XP 32bit/Ubuntu 64bitNo problems at all so far and I've been keeping up with updates manager. Two days ago I went start my machine and chose Ubuntu from the OS selection screen as usual. The only thing that shows up on the next screen (grub menu I believe?) is "HD (0,0) NTFS5" for about 1.5 sec and then reboots.
Windows boots and runs fine. They are both installed on the same physical drive. Not sure what else to search for or include for information. I've tried searching the forums but not sure what nomenclature to use.Trying to avoid reinstalling. p.s. I knew I was enjoying Ubuntu but didn't realize how much until I was forced back to using just XP.
My colleague needed a backup for some of his loose media, so I assured him I could back it up on our Lab's Lacie 2TB external. His windows partition was incredibly sluggish, so he booted into ubuntu 11.04 and we partitioned and formatted an NTFS volume for him to transfer his stuff to. The format went fine, space was available, and I left him to transfer all of his stuff from his dell studio1555. He finished and reformatted his computer completely.
The NTFS is not recognizable by any of the OS now. Ubuntu sees it as a single partition without any data, whereas before the transfer, the partition map was clearly visible. Windows does not recognize the drive at all. OS X does recognize the partition, but it shows up as an apple_scratch volume, which is quite a bit frightening, considering a scratch volume is essentially blank. To elaborate, all of the files were in his windows partition, and were transferred within a relatively fresh install of ubuntu (not much had been done on it). The partition was made in diskutility in ubuntu (the GUI), but the rest of the drive was HFS+ formatted.
when I select Vista/Longhorn from my grub list, it shows a black screen, then shows GRUB again. I recently had to reset my menu.lst, so I'm not sure if the settings for the windows option are correct. This is my /boot/grub/menu.lst:
I've installed Ubuntu inside Windows 7 with the Ubuntu Windows installer. I have previously had problems with booting Ubuntu, but it always got to GRUB at least. Now it shows the Windows bootloader, I select Ubuntu and the computer just reboots.
This is a strange one. Ever since upgrading to 11.04 64-bit, I've had this problem and I've just been dealing with it...
After the machine posts, grub presents itself. Before upgrading, it would timeout after 5 seconds and boot the first/default entry. Since the upgrade, it no longer automatically boots the first entry. In addition, it reboots the computer after selecting the first entry. After it comes back up to grub, you select the first option and this time it boots.
I'm pulling my hair out on this one. I'm by no means a Linux expert, but I've been running Ubuntu for a few years now and this is one of the first issues that I've been unable to work through.
i have got an Debian Lenny NAS with 7x1,5TB of a Softwareraid5. Kernel Version is 2.6.32. The Raid ist mountet in /media/raid5. The System ist on a seperate disk and work fine. After i tested the performance of the raid with:
Since i had done this i cant find any Data on /media/raid5. cat /proc/mdstat and mdadm --detail /dev/md0 looks fine. All UUID's are good. But: The SuperBlock is unreadable and the partition table was not found. mke2fs -n /dev/md0 shows some Backup of the Superblock , but i cant repair it with fsck.ext4: Illegal inode number on /dev/md0.
Just installed Ubuntu 9.10 and had windows 7 ultimate installed prior to installing Ubuntu. When I installed Ubuntu I partitioned off a section of the HDD that windows is installed on and installed to that new partition. Ubuntu boots and works great but ever since installed if I select windows to boot it just reboot PC all together. Tried making windows default and it booted windows once then went back to normal. I tried to follow suggestions on different post about running "sudo grub" but it is not a command according to my terminal.
I recently installed Ubuntu, my first experience with Linux, but when I try to boot a previously installed Windows 7 from grub, it reboots the system back to the grub screen. I can boot to Ubuntu.
I've been searching for and working on possible solutions for several days to no avail. There are some similar posts on various forums but few quite like mine, and solutions I've read haven't solved my problem. I tried booting to the windows 7 repair disk and selecting the repair start up option, but the message tells me no problems were found.
I just installed 5.6 using the x86_64 netinstall - all appeared to go well, albeit a little slowly. At the end of the install i rebooted the machine but CentOS won't load. If I select the CentOS option from grub (only other option is 'other') the machine instantly reboots.
Only options selected for install where 'server' and 'server gui'.
Editing the CentOS options shows the following but I've no idea whether this is correct or not (assume it is):
I have used ubuntu 8.04 in a dual boot system together with windows xp and wanted to upgrade to ubuntu 10.04.
Since the upgrade did not work (the usr partition was to small and I couldn't make it big enough) I downloaded the ubuntu-10.04-desktop-i386 edition and tried to install it.
Everything worked find during the installation process but when I tried to start ubuntu I could only see the ubuntu desktop for a second and then the computer began to reboot.
Then I thought that I can solve this problem by installing ubuntu 8.04.4 again and trying to upgrade to ubuntu 10.04.
After the installation I could start ubuntu 8.04.4 without problems but after upgrading to ubuntu 10.04 the same problem occurs again: ubuntu 10.04 causes the computer to reboot every time I try to start ubuntu.
Running CentOS 5.5 on a Dell PowerEdge 710 with a mirrored RAID. System randomly reboots leading to MySQL table corruption as its not a graceful shutdown. Here is the output of the getinfo shell script [URL]. Some data has been obfuscated such as public ip addresses. Prior to posting this a full hardware diagnostic was run by the Data Centers support team which turned up nothing.
Output of last|grep boot|head
reboot system boot 2.6.18-194.11.1. Tue Sep 21 03:24 (05:51) reboot system boot 2.6.18-194.11.1. Sun Sep 19 12:10 (1+10:53) reboot system boot 2.6.18-194.11.1. Sat Sep 18 23:20 (1+23:43) reboot system boot 2.6.18-194.11.1. Sat Sep 18 18:20 (2+04:42)
I have a newly installed CentOS 5.4 which is having shutdown problem, if I try "shutdown -h now", the machine will poweroff then reboot instead of poweroff completely. how to debug this problem?
Hardware: Gigabyte G31M-ES2L, 4G RAM, Sil 3112A PCI SATA card, 6 SATA disks and one IDE disk. I have disabled all power on options in BIOS. Software: CentOS 5.4, software RAID, samba
I'm having an issue where, after having just installed Xubuntu, the GRUB menu fails to appear when the USB stick I used to install it is not plugged in. Without it, pressing ESC brings me to the Windows 7 (OS dual-booting with) special menu.Is this standard behavior?Is the default timeout zero? Can I adjust GRUB to display for a long enough time to make a decision?
I mount /home on its own partition that it is 20GB wide.I used 8GB in /home/b. /home contains just /home/federico & /home/lost+found (which appears to be empty).Strangely the partition appears to be full. I kept deleting files (and deleting also the Trash) but after I while my partition was full again.I do not use a swap file on this partition.
Two days ago I decided to migrate from Fedora to Ubuntu 10.04. On the Ubuntu install I chose to format the entire disk as I do not want a dual boot system. I have three disks and have set the bios to boot from dvd, then main disk, then 2nd disk, then any other bootable drive and coming from a working Fedora I know I have my "slaves" and "Master" pin positions on the disks set correctly.
When I try to boot the fresh install of Ubuntu I do not see any menu options, no boot image nothing, I get taken immediately to a grub command window and I dont know how to fix things from there. I have tried to fix things by booting into the "try before you 'buy'" thing on the installation cd and I can see that Ubuntu has been installed on the main disk, but all in all Im stuck.
I set my fstab to auto mount one of my partitions in ~/Music.It works perfectly, but there is always the icon in the desktop pointing to my partition with the name "40 GB FileSystem". The idea behind mounting it automatically to ~./Music was for the partition to be transparent to me...Is there a way to remove that icon from the desktop and from the Places menu?
opened the system>administration>bootloader guior anything just opened it)now on boot I get a timeout with an option to go to the grub configuration or boot my one and only installed versionwould really like to get rid of that and go back to booting straight to my only fedora version installed without the option to go to grub (might be useful someday, but now is not the day
i installed Rhel5 as dual boot with windows.after installation it worked nicely.i forgot to eject the installation dvd of rhel5 from the cdrom.while rebooting the installation menu appeared. so rebooted and eject the dvd.The problem is the GRUB loader not showing the boot menu(windows or Redhat).it shows grub>what sould i have to do, to boot
The problem is that when the computer starts up/reboots it doesn't "Unlock the system keyring"(I think that's what it said).
When I try and attempt to connect to the computer it asks for the VNC password(as per normal) but fails to connect after that.
The reason is that the Ubuntu computer prompts for the user's password to unlock the system(locally).
What I want is to be able to turn on the computer without having to worry about entering the password. I've had it running fine on 8.04 yet the newer version seems to be annoying :s
The system is set to automatically login on startup too.
I've tried this: "delete the keyring folder under /home/XXXX/.gnome2" then setup remote desktop again. But that hasn't worked either. I still have to enter the password to a keyring
I just booted into Linux and the Update Manager prompted me to restart. After the restart the GRUB interface I expect to see is no longer there and now it is just a command line that says press tab for more options.I have not got a clue with shell language as I have had no time to learn it as of yet. Do I need to uninstall and reinstall Linux or is there a command that can be typed that boots up the operating system.Even better is there something I can do that can return me to seeing the interface like I was used to.
I am currently running 9.10 ubuntu (gnome). I have a dual core intel chip at 3.00 ghz. My mobo is an ASUS P5ND2-SLI. My mobo will support up to 8gb of ram. Now, as we all know, 32-bit os/kernel will only support like 3.2gb, and 64-bit like 4gb. I'd like to install a pae kernel so I can get the most from my mobo, but honestly, I don't have a clue where to start looking for a pae kernel. I'd like to be able to select it from the list that already appears after the grub loads, and if I like it, be able to remove the rest from the list, or just make it default.
Question, in CPU-G, it says my architecture is i686. I don't know if that's the os/distro, or the kernel itself. it also lists the GCC version as 4.4.1 and Xorg as 1.6.4. my current kernel is Linux 2.6.31-22-generic. Again, I'm trying to find a pae kernel, but I don't know if my os/distro will make a difference, if the architecture is the kernel or os itself. I am still fairly new to ubuntu, and I must say, I've made the switch completely from windows.. which blows...
My dell machine has the following: A raid 0 SAS config with Windows 7 installed in one partition, and ubuntu in the other partition. Then two seperate sata hdd. The raid drive is set as first boot, and Windows views it as disk 0 and boots just fine. When I installed ubuntu 10.04 on the second partition, it viewed the disk as sdc. And when booting off the raid drive,im not given a grub menu to choose ubuntu orwin 7,windows 7 boots all on its own.
