Grub Error 27 Ubuntu
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Grub Rescue Commands List
» Sep 13 2008 12:26AM GMT Grub and boot errors John Little Profile: Xjlittle Tags: Thanks! We'll email youwhen relevant content isadded and updated. Following Follow Storage If
/boot/grub/i386-pc/normal.mod Not Found
you've administered or customized Linux long enough you've no doubt created a situation at some point where, during the boot process, that GRUB throws an error. We're going to discuss some of these situations below along with ways to work through them. If a file name or partition in the GRUB configuration file is incorrect GRUB won't be insmod normal unknown filesystem able to find critical files such as the Linux kernel. For instance if the root directive points to something other than the /boot directory GRUB will throw one of the following errors:
Error 17: Cannot mount selected partition
Error 27: Unrecognized command
Error while parsing number
Cannot mount selected partition
If the GRUB configuration file is completely missing you will see the following:
grub>
If you find yourself at this prompt you can find a list of available commands by hitting the tab key. The first thing that you are going to want to do in any of these cases is check and make sure that your root directive is correct. To do this, at the grub prompt, use the find command to locate the GRUB configuration file. Your search would begin something like this:
grub> find (hd0,0)/grub/grub.conf
where hd0,0 is the 1st hard disk and the 1st partition on the hard disk. Repeat the process using the various partition
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Grub Rescue No Such Device
policies of this site About Us Learn more about Stack Overflow the company grub rescue windows 7 Business Learn more about hiring developers or posting ads with us Ask Ubuntu Questions Tags Users Badges Unanswered Ask grub error 27 unrecognized command Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask http://itknowledgeexchange.techtarget.com/linux-lotus-domino/grub-and-boot-errors/ a question Anybody can answer The best answers are voted up and rise to the top How to fix "error: unknown filesystem. grub rescue> [duplicate] up vote 36 down vote favorite 20 This question already has an answer here: Grub rescue - error: unknown filesystem 4 answers I get this error: Error: unknown filesystem. grub rescue> I'm not exactly sure what I did. I http://askubuntu.com/questions/142300/how-to-fix-error-unknown-filesystem-grub-rescue believe I installed Ubuntu over Windows on my Acer netbook. I then tried to install Linux Mint, but it wouldn't start installing. I turned the netbook off and back on. Now I get the error. I have read a lot of other questions like this, but in my case I cannot boot a CD. If I put a Ubuntu CD or a Linux Mint CD into my external CD/DVD drive and change my BIOS to boot the CD-ROM first, it just gives me the same error screen. Update copied from comment dated 2012-05-26 02:54:29Z Here are some results from my commands: grub rescue>ls (hd0) (hd0,msdos5) (hd0,msdos1) grub rescue>ls (hd0,msdos5) unknown filesystem grub rescue>ls (hd0,msdos1) unknown filesystem grub rescue>ls (hd0) unknown filesystem grub2 share|improve this question edited Apr 20 at 11:00 Community♦ 1 asked May 26 '12 at 2:25 Hjke123 190247 marked as duplicate by belacqua, Warren Hill, user.dz, bain, psusi Jul 1 '14 at 18:59 This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question. do you have ubuntu live ISO
Today's Posts Advanced Search Find the answer to your Linux question: Entire Site Articles Downloads Forums Linux Hosting Forum Your Distro Ubuntu Linux grub repair If this is your first visit, be sure to check out the FAQ http://www.linuxforums.org/forum/ubuntu-linux/91700-grub-repair.html by clicking the link above. You may have to register before you can post: click https://www.youtube.com/watch?v=0RY43243ioQ the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. ** If you are logged in, most ads will not be displayed. ** Linuxforums now supports the Tapatalk app for your mobile device. Page 1 of 2 1 2 Last Jump to page: Results 1 to 10 of 12 grub rescue Thread: grub repair Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Enjoy an ad free experience by logging in. Not a member yet? Register. 04-16-2007 #1 R3N3G4D3 View Profile View Forum Posts Private Message View Articles Just Joined! Join Date Apr 2007 Posts 12 grub repair I have Windows and Ubuntu installed on my laptop as dualboot. The way the partition grub error 27 table was setup is: hda1 = Windows XP (primary) hda2 = Unused (primary) hda3 = Extended hda5 = Ubuntu / (Logical inside hda3) hda6 = Ubuntu swap (Logical inside hda3) hda7 = NTFS storage partition (Logical inside hda3) Everything was working fine, until Windows corrupted itself. After reinstalling Windows, it got rid of grub MBR, so now only Windows can boot up. I've looked at several fixes online, but none seem to work for me. Here is what I tried and results I got: 1.) With Gentoo CD tried "mkdir dummydir", "mount /dev/hda3 dummydir", after this I went into dummydir and it did indeed contain the stuff from hda5 (Ubuntu root directory) (also, mounting /dev/hda5 gives an error saying that I need to specify partition type, using -t ext3 says that it's a logical partition and I want to mount extended one instead, which is why I mounted /dev/hda3). After this I tried "chroot dummydir", which changed me to root@livecd. And then I tried using "grub-install /dev/hda" which gave me and error: "/dev/hda: Not found or not a block device. So then instead of that I launched grub and tried "root (hd0, 4)" (since that should correspond to /dev/hda5, also (hd0, 4) is what /boot/grub/menu.lst claims as my Ubuntu partition), however, that command gave me "Error 21: Selected disk does not exist" error in grub. 2.)
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