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Grub Root Error 27

? Ask a question, help others, and get answers from the community Discussions Start a thread and discuss today's topics with top experts Blogs Read the latest tech blogs written by experienced community members >>VIEW ALL POSTS Open Source Software and Linux « Troubleshooot your Linux boot process with GRUB grub ls error 27 unrecognized command Netbooks, Notebooks, Windows and Linux » Sep 13 2008 12:26AM GMT Grub and boot errors John error 27 unrecognized command grub centos Little Profile: Xjlittle Tags: Thanks! We'll email youwhen relevant content isadded and updated. Following Follow Storage If you've administered or customized Linux long enough grub rescue error unknown filesystem 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 grub rescue no such partition in the GRUB configuration file is incorrect GRUB won't be 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>

Grub Rescue Commands List

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 partitions on the 1st disk (hd0,1 hd0,2) and so on until you find the configuration file. If the partition is not found you will get an error:
Error 15: File not found
Once you have found the GRUB configuration file check it's location against what the boot loader is showing. You can check the contents of the file by using the cat command:
grub> cat (hd0,0)/grub/grub.conf
Another way to find the same information is to locate the stage1 boot loader file:
grub> find /grub/stage1
You will see output specifying the /boot partition:
(hd0,0)
Perhaps the most simple way to get this information is to simply type root at the prompt:
grub>root
(hd0,0) : Filesystem type is ext2fs, partition type 0x83
Command completion also works from the GRUB command line. If

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/boot/grub/i386-pc/normal.mod Not Found

Other Support Launchpad Answers Ubuntu IRC Support AskUbuntu Official Documentation User Documentation grub filesystem type unknown Social Media Facebook Twitter Useful Links Distrowatch Bugs: Ubuntu PPAs: Ubuntu Web Upd8: Ubuntu OMG! Ubuntu Ubuntu Insights insmod normal unknown filesystem Planet Ubuntu Activity Page Please read before SSO login Advanced Search Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Installation & Upgrades [ubuntu] [SOLVED] GRUB Error 27 - Hardy http://itknowledgeexchange.techtarget.com/linux-lotus-domino/grub-and-boot-errors/ vs XP Having an Issue With Posting ? Do you want to help us debug the posting issues ? < is the place to report it, thanks ! Results 1 to 4 of 4 Thread: [SOLVED] GRUB Error 27 - Hardy vs XP Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to https://ubuntuforums.org/showthread.php?t=831085 Threaded Mode June 16th, 2008 #1 tICT View Profile View Forum Posts Private Message First Cup of Ubuntu Join Date Jun 2005 Location Ilkley - UK Beans 9 DistroUbuntu 7.04 Feisty Fawn [SOLVED] GRUB Error 27 - Hardy vs XP ... so far Hardy is winning, which is no bad thing, but my wife will kill me if she cannot get back to XP soon! I was running Gutsy and XP, booting using Grub. Anyway, I upgraded to Hardy over the weekend, deciding to tidy up my partitions to increase my linux install space to allow for a VirtualBox. I deleted my original partitions, using the Live CD & gparted, then created 2 new ones for / and /home. Installed Hardy and that boots fine. When I try to boot to XP though I get Error 27: Unrecognised command. Have followed some threads which suggest refreshing grub, following: Code: find /boot/grub/stage1 reports hd0,6 Code: root (hd0,6) Code: setup(hd0) But whenever I get to setup(hd0) I get another error 27! Any help to get the beast of XP back to life would

communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have http://askubuntu.com/questions/142300/how-to-fix-error-unknown-filesystem-grub-rescue Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us http://savannah.gnu.org/bugs/?15288 Ask Ubuntu Questions Tags Users Badges Unanswered Ask Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a error 27 minute: Sign up Here's how it works: Anybody can ask 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 error 27 unrecognized get this error: Error: unknown filesystem. grub rescue> I'm not exactly sure what I did. I 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 questio

Statistics Site Help User Docs: Cookbook User Docs: In Depth Guide Get Support Contact Savannah User Docs: FAQ GNU Project Help GNU All GNU Packages Dev Resources License List GNU Mirrors Free Software Foundation Coming Events Free Software Directory Cryptographic software legal notice Copyright infringement notification Related Forges Savannah Non-GNU Gna! Puszcza GNU GRUB - Bugs: bug #15288, savedefault (Error 27:... Group Main Main View members Search Homepage Download Mailing lists Source code Use Git Browse Sources Repository Use Bazaar Browse Sources Repository Use CVS Browse Web Pages Repository Bugs Submit new Browse Reset to open Digest Export Get statistics Search Tasks Submit new Browse Reset to open Digest Export Get statistics Search News Browse Atom feed Submit Manage You are not allowed to post comments on this tracker with your current authentification level.bug #15288: savedefault (Error 27: Unrecognized command) Submitted by: Martin Fernau Submitted on: Sun Dec 25 12:38:24 2005 Votes: 50 Category:BootingSeverity:Major Priority:5 - NormalItem Group:Software Error Status:NonePrivacy:Public Assigned to:NoneOriginator Name: Open/Closed:ClosedRelease:0.97 Release:NoneReproducibility:Every Time Planned Release:None Discussion ( Jump to the original submission) Sat Dec 15 21:08:14 2007, comment #7:We've moved to GRUB 2 as a development platform. Please can you check if this bug still applies there, and if it does, reopen it? Thanks Robert Millan Tue Jan 3 23:32:12 2006, comment #6:I re-tried on another machine since the original is in use and the savedefaults does not work in the grub shell under linux while it worked during boot - but i cannot reproduce it with the original machine at the moment. If you don't have physical access to your machine i'd do a dry-run on a testmachine. Florian Gleixner Mon Jan 2 19:12:17 2006, comment #5:hmm... I tried to reinstall grub with grub-install /dev/hda now, the 'grub-set-default' command works proper. But not the savedefault command in the grub-console. You can type 'savedefault' at the grub-console while you are online with linux? I mean: $ grub GNU GRUB version 0.97 (640K lower / 3072K upper memory) [ Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. A

 

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