Ubuntu Installation :: Grub Error Saying Unknown File System?
Sep 29, 2010
i installed ubuntu 10.04.. all very nice, but not the os for me.. lightscribe problems, front ir panel problems. minor niggles for sure, but enough for me to go ahead with formatting and installing windows. simple job...or so i thought... using windows set up, i formatted c: and continued with install...on first restart i got a grub error saying unknown file system... i have tried loads of different things... fix mbr fixboot, that nt60 one. dban wouldnt work either.. im at my wits end ive spunked the best part of 1000 on this system and my wife is nagging me.
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Jul 18, 2011
I have a pc that was running with the latest version of ubuntu and i wanted to install just vista for somereasons.
And what i did is to format the main driver and try to boot it from vista CD and as you may guess i have an error that says: unknown file system grub rescue
Each time i start the pc. I have an ubuntu live cd and also the vista cd, so what should i do now? the vista cd dosnt boot and the same screen appears all the time.
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Jan 11, 2011
It started when I wanted to dual boot Windows 7 and Opensuse off of my netbook (No DVD/CD drive) I tried install suse from an external hard drive and I botched it. I ended up erasing EVERYTHING off of my internal netbook hard drive. Windows and all.
Well, I had a couple of other computers so I studied up and eventually successfully installed OpenSUSE 11.2 on my external hard drive (11.3 being the one that I accidentally erased everything with, so kinda scared of it) and now I want to install openSUSE 11.2 on my internal netbook hard drive.
I can not use disks
I can not use a flash drive (For some reason, even if I make it bootable, it will not load up, this could be because it's actually a 8GB microSD card that is placed in a USB card reader.)
I can not use an external hard drive because that's what I'm running suse off of.
I've tried reading up on how to install suse on another drive off of the hard drive and I've gotten as far as whenever I boot up the netbook with the suse external hard drive connected it will ask to boot into OpenSUSE, the Fail Safe, or to install OpenSuse. When I select to install it it gives me the Error 18 Unknown File system.
I've tried formatting the internal hard drive twice. One as NTFS and again as EXT4. Neither seems to effect it other than when it's ext4 I can open it and it contains a Lost and Found folder.
When I interrupt the boot sequence by pressing c and going to the terminal and I use the root (hd +TAB command it tells me I have a hd0 and a hd1. The hd1 only has 1 partition which is ext4, which I'm assuming hd1 is the internal hard drive (I'm not sure how to check) and the hd0 is the external hard drive, which has three partitions. One with an unknown file system and two with ext4. When I try to enter the set up from the terminal it gives me the same error for any thing I put it (e.g. root (hd0,0) gives the same error as root (hd0,1), or root (hd0,2) and root (hd1,0)
Something like it cannot locate these two files I'm assuming it needs to boot. If anyone finds this relevant I'll retry it and post the files its missing.
I've been searching for awhile and can't find any threads that can solve my problem. From other threads, however, I have noticed that I should probably include my menu.lst, listed below
Code:
I have also ran the boot info script and received the RESULTS.txt file it generates. Listed below
Code:
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Nov 23, 2010
I have a dual boot system with ubuntu 9.10 x64 and Windows 7. Everything has been working fine for a a long time but yesterday I tried to delete an unused partition through the Disk Utility in ubuntu (System->Adminstration->Disk Utility) and everything was messed up. I used to get the "Grub error: Unknown filesystem". I managed to create an ubuntu bootable usb and followed some tutorials for fixing grub but all i managed to do is to get another error: "Grub error: No such disc". After some experimentation i got
"Grub stage 1.5" which gave me a grub> command prompt./dev/sda is the drive containing Windows and Ubuntu.
Code:
[ Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Grub 0.97 is installed in the MBR of /dev/sda and looks on the same drive
in partition #6 for /boot/grub/stage2 and /boot/grub/menu.lst.
[code].....
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Apr 15, 2011
I previously had Ubuntu installed on my MBR. I deleted that partition (32 GB), resized my Mac partition back up to (250 GB), and then reduced it to 200 GB and created a new one with 50 GB via BootCamp to install Windows 7 from a DVD that I burnt (I got a Windows executable from MSDNAA that I used with Wine to obtain the ISO image. Insert rant about having to download Windows with a Windows executable here.).
I've tried burning two different DVDs. I used Burn on my Mac to burn a data DVD+R with the HFS+ and Joliet filesystems (I think) and then tried again with the ISO9660 and UDF filesystems. The latter has not shown any signs of working besides mounting on OS X. The first DVD would not boot whenever I held 'C' down at time of boot. So I went into BootCamp and clicked "Start Installation". It restarted my computer and this is where the real confusion comes up. I think that it tried booting via the empty partition. The reason I say this is that there are remnants of GRUB and when I boot, I get a screen that says this: error: unknown filesystemrub rescue>
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Mar 7, 2011
Yesterday I installed the latest version of ubuntu to my computer that was already running windows 7. I had everything working fine until in windows I deleted a partition that had nothing in it.
After this I restarted but I can't get into either OS. I get an error that says Error: unknown filesystem grub rescue>
I think I need to fix something in grub. I have been booting off of a usb stick with linux on it in the mean time.
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Mar 7, 2011
Yesterday I installed the latest version of ubuntu to my computer that was already running windows 7. I had everything working fine until in windows I deleted a partition that had nothing in it. After this I restarted but I can't get into either OS.
I get an error that says Error: unknown filesystem grub rescue>
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May 2, 2011
I tried upgrading to 11.04 this morning and after rebooting grub left me at the grub rescue> prompt with the message 'error: unknown filesystem'. I've tried purging and reinstalling grub using a live-cd but no joy.
Let me know what additional information to provide. EDIT: Here is the output from the Boot Info Script
[Code]...
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Jan 25, 2010
I want to mount my USB on Linux system using the following comman mount /dev/sda1 /mnt/usb an error occur "unknown file system ntfs".how can i resolve this issue?
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Jan 31, 2010
I'm running Ubuntu 9.10. I want to make a backup copy of my install using Partimage. Where it say's to name your file, I put "U9.10backup". Just get an error message "The file system of [/dev/sda1] is [-unknown-], and is not supported". What am I doing wrong here? Also, don't I need to backup the swap as well?
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Oct 25, 2010
I'm having problems installing Ubuntu 10.10 Netbook onto my Asus 900. I downloaded the .iso then used the "make startup disc" feature in my Mint 9 desktop machine to make a usb install disk. All appears well at that point. When I try to boot from the usb stick, I get an error message as follows:
"SYSLINUX 363 Debien-2008-07-15 ......
Unknown Keyword in Configuration File
boot: "
and the cursor just hangs there and doesn't respond to the keyboard.
I also tried it on another Asus and a Gateway Laptop with the same results.
My intention is to have this the sole OS on my little Asus 900.
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Sep 1, 2011
I had Ubuntu and Kubuntu installed to dual-boot using the GRUB loader installed by Kubuntu. I mistakenly formatted the Kununtu partition to NTFS in an attempt to install Windows XP in its place without updating grub to pull the files from my Ubuntu partition.
Now, when I go to boot the computer, I receive a the "error: unknown filesystem" and the grub rescue prompts for commands. I've attempted to boot from both a Ubuntu Live CD and a Secured Ubuntu CD with boot repair built into it, but receive the same message both times. I know this isn't an issue with my boot order (I've changed that), and my computer will boot into a Windows XP setup disc (which will not proceed for a different reason)
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May 2, 2011
I am trying to restore my system to Ubuntu 10.10, using a system backup made with REMASTERSYS. When I reboot, I get the message: GRUB error:15 I found many threads discussing this issue, most notably here: [URL]
[Code]....
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Feb 25, 2010
i have changed from windows xp to ubuntu 9.10 in monday but yesterday i turned my pc on and when i get in my session all get freeze, i waited for an hour and it was the same so i turned it off pressing the on/off button of the cpu, when i restarted it it saysGrub loading...Grub failed: unknown filesystemGrub rescuei dont knoe what to do.PD:i removed windows, only ubuntu is in the PC
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Jan 3, 2010
I had win7 on my laptop. Before sometime I install Ubuntu 9.10 and it worked fine. Bur later that I resize the partition using third party software. Now when I restart the system it is giving me an error
GRUB Loading
error: unknown filesystem
grub rescue>
I am not able to access the harddrive. I am very new to ubuntu.
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Feb 7, 2010
I have been using ubuntu 9.10 for a month. i have it installed on a 5GB separate partition of a 80 GB hard disk with my XP installed on a C drive(a separate partition ofcourse) then i had to remove it from my PC so i boot my PC with a partition manager cd and directly formatted that partition of 5GB from that software now i am having this error on my boot of PC....
grub rescue> error:unknown filesystem
I have tried a lot of commands here on this screen and nothing happens...i want to go to my XP .... and can't loose my XP OS and other data as well on different partitions.....
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Oct 16, 2010
there was ubuntu on my pc operating system but it is strange for me so i wanted to instal windows 7 on my pc. I inserted Window 7 disk and started to install it and i formated Ubuntu but the disk what i was using was damaged and it could not complite the installation and now i dont have any programs in my pc. Problem is that i got another disk but i cant boot anymore my pc, i select drive and stuff and then comes error.
error: unknown filesystem grub rescue- i tryed different commands but those didnt worked.
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Nov 17, 2010
I had dual boot with windows 7 and ubuntu 10.04 running, and working. In my grub menu on startup I could choose (among things) something called Vista loader. Dont know why, since I installed windows 7 and not vista. Could also choose windows7 and ubuntu, both worked.
Today I accidentally pressed the vista loader, and now I get the following error upon boot: Error unknown filesystem grub rescue
So the next thing I did was download the latest ubuntu and boot from live cd. I followed instructions [url] on how to purge grub2 and reinstall it, and did so with out any problems. However the same error remains when I boot.
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Apr 19, 2011
I just recently decided to install Ubuntu alongside windows 7 64bit. I was working fine until I decided to increase the partition size of the unused space to take up some space of an unused partition I had made earlier. When I tried to reboot windows I got the error -
error: unknown fileystem.
grub rescue>
I have tried a windows repair disc with no results, it cannot find any problem with the startup routine and I have looked at many different tutorials and information about how to restore grub using command from the grub rescue menu. Ubuntu 10.10
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Feb 1, 2010
A formerly working system now gives an 'error 17' at Grub instead of booting. Here are the facts I have gathered thus far.
$ blkid
n/a (no output)
$ sudo fdisk -l /dev/sda
Code:
Disk /dev/sda: 60.1 GB, 60060155904 bytes
255 heads, 63 sectors/track, 7301 cylinders
[Code]...
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Mar 18, 2011
my ubuntu installation has stopped booting after i deleted and again created one of my partitions (not the ubuntu partition but my data partition). but now when i switch on my netbook it says: error: unknown filesystem grub rescue>
i used gparted live to resize. this is my disk partition structure:
[Code]....
before doing this, my ubuntu partition was /dev/sda7, the swap partition was /dev/sda 6, and the data partition was /dev/sda 7.
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Jan 9, 2010
I have dual boot with Ubuntu 9.10 and Windows 7. Today, after using Partition Wizard on Windows to resize its partition, I got the following message when reboot:
Code:
I dont actually know what to do, I've been reading some threads on the internet but nothing equal to my case, only people who installed Windows after Linux and lost GRUB. Do I just need a live CD to reinstall GRUB? Can somebody tell what to do?
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Mar 7, 2010
When i open my computer this message is coming what can i do?
grup loading error:unknown filessystem grub rescue
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May 13, 2011
I have the following error : unknown filesystem. grub rescue after incorrect dual boot with Windows 7. - i was so stupid to install Linux and windows 7 on the same partition ....I did some investigation i found online that i should continue with supergrub disk
Steps i have taken first i installed rescatux iso on dvd then cd then usb changed BIOS offcourse to boot from these locations. Then i tried SuperGrub disk 2 did exactly the same but still i am not able to recover anything then i tried supergrub disk 1 all over again dvd cd rom and usb but i don t get the option to recover windows bootloaders After that i was able to start my pc with the ubuntu run from USB
Is there anybody who any tips where to start now i really need my windows for workrelated stuff the usb version gives me the option to fully install UBUNTU. If i do this do i then overwrite my windows 7 partition again?
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Sep 30, 2010
I have windows vista. i tried installed linux-ubuntu 9.10 but not knowing after a point on how to proceed further, i quit half-way. so my partition (14 gb)remained wasted. i tried installing again in a new partition and got it done. from my newly installed lunux, i tried to delete that 14gb partition. and now when i restart my laptop, i get this error :
GRUB loading.
error: unknown filesystem
grub rescue>
I would like to know what exactly has happened and how do i get this resolved.
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Mar 6, 2011
I just installed ubuntu on my computer that already had windows 7 on it so I could dual boot them. After installing ubuntu and playing around on it a little I went back onto windows. I then restarted my computer and now it won't startup. I get an error that says unknown filetype grub rescue<. I don't know what to do to get back into windows or ubuntu.
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Oct 28, 2010
I've recently installed Ubuntu 10.10--it had Windows 7 on the machine before but wiped that off so it is not dual boot.
The upgrade manager prompted me to install about 170MB or so of upgrades. I chose to install everything and then rebooted. Upon rebooting I received an error (sorry but didn't record it).
I rebooted by ctrl-alt-delete and then got the error: error: unknown filesystem grub rescue.
How do I get back my installation?
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Jul 19, 2010
My friend recently installed ubuntu to his existing computer which had windows XP. Today when he tried to start the PC it showed the error
[Code]...
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Feb 26, 2010
I'm sure you guys have gotten this before.
Code:
GRUB Loading.
Error: no such disk
[code]....
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Feb 24, 2009
I'm running Debian testing and after a recent software update, suddenly I can no longer boot into my single Linux kernel image anymore. I did look at the software update before I did it and I don't believe that it removed any software packages. When I try to boot into my linux 2.6.26-1-amd64 image, I get the following message from grub:"error: unknown command `initrd'"..The same error appears if I try to boot into single-user mode. I have a Windows XP partition on the same hard disk and I am still able to boot into that from grub. I've searched the net and haven't really found my same problem replicated anywhere. I would imagine that the problem is just that somehow the initrd package got removed in my last software update, but again I don't recall seeing any software that the update planned to remove.
Any thoughts on how I would go about fixing this problem? Since I'm unable to get into Linux at all, I imagine I'll have to use a LiveCD to get in and fix the problem, but I don't know where to begin looking.
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