Grub Loader Error 27
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Error 27 Unrecognized Command Grub Centos
Following Follow Storage If 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
Error Unknown Filesystem Grub Rescue Windows 8
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 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
grub filesystem type unknown 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 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:
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Grub Rescue Commands
or posting ads with us Ask Ubuntu Questions Tags Users Badges Unanswered Ask Question _ Ask Ubuntu error no such partition entering rescue mode 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: error 8 kernel must be loaded before booting 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 http://itknowledgeexchange.techtarget.com/linux-lotus-domino/grub-and-boot-errors/ 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 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 http://askubuntu.com/questions/142300/how-to-fix-error-unknown-filesystem-grub-rescue 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 in internal hard drive? –virpara May 26 '12 at 2:45 If there is no defect in either your Ubuntu or Mint install CDs then either your hardware is broken or your BIOS is simply not trying to boot from the CD even though you think you told it to do that. Please take a look at the troubleshooting suggestions listed on the BootFromCD help page. –irrational John May 27 '12 at 2:07 I did what this answer said to do, but instead of (hd0,1) I put (hd0,3). I suggest trying that command with 1-6 instead of just 1 or 0. But try 0 too. –user85203 Aug 24 '12 at 1:
Hard Disk Error" Issues related to hardware problems Post Reply Print view Search Advanced search 9 posts • Page 1 of 1 kollolbiswas Posts: 12 Joined: 2011/09/26 14:01:54 Contact: Contact http://www.centos.org/forums/viewtopic.php?t=24630 kollolbiswas Website getting error "GRUB Hard Disk Error" Quote Postby kollolbiswas » 2012/03/27 https://www.youtube.com/watch?v=i1QpN9IWSoc 08:15:16 Hi,I have installed Centos 5.2 on my local server where the partitions has been created on two hdd (sda and hde). There is another hdd (sdb) which contains few data. The third hdd was connected after installation and it was there connected till now. now on #fdisk -l I get the following.Code: error 27 Select allDisk /dev/hde: 40.0 GB, 40060403712 bytes
255 heads, 63 sectors/track, 4870 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hde1 * 1 25 200781 83 Linux
/dev/hde2 26 error 27 unrecognized 1330 10482412+ 83 Linux
/dev/hde3 1331 1852 4192965 82 Linux swap / Solaris
/dev/hde4 1853 4870 24242085 5 Extended
/dev/hde5 1853 4870 24242053+ 83 Linux
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 121601 976760001 83 Linux
Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 522 4192933+ 82 Linux swap / Solaris
/dev/sdb2 523 121601 972567067+ 83 Linux[Moderator edit: Added code tags to preserve formatting.]Now I need the third hdd but if i remove that I ge
Du siehst YouTube auf Deutsch. Du kannst diese Einstellung unten ändern. Learn more You're viewing YouTube in German. You can change this preference below. Schließen Ja, ich möchte sie behalten Rückgängig machen Schließen Dieses Video ist nicht verfügbar. WiedergabelisteWarteschlangeWiedergabelisteWarteschlange Alle entfernenBeenden Wird geladen... Wiedergabeliste Warteschlange __count__/__total__ Boot into Windows 8/7/XP in Grub Rescue Mode. Tresnor Menezes AbonnierenAbonniertAbo beenden286286 Wird geladen... Wird geladen... Wird verarbeitet... Hinzufügen Möchtest du dieses Video später noch einmal ansehen? Wenn du bei YouTube angemeldet bist, kannst du dieses Video zu einer Playlist hinzufügen. Anmelden Teilen Mehr Melden Möchtest du dieses Video melden? Melde dich an, um unangemessene Inhalte zu melden. Anmelden 539.727 Aufrufe 966 Dieses Video gefällt dir? Melde dich bei YouTube an, damit dein Feedback gezählt wird. Anmelden 967 308 Dieses Video gefällt dir nicht? Melde dich bei YouTube an, damit dein Feedback gezählt wird. Anmelden 309 Wird geladen... Wird geladen... Wird geladen... Die Bewertungsfunktion ist nach Ausleihen des Videos verfügbar. Diese Funktion ist zurzeit nicht verfügbar. Bitte versuche es später erneut. Veröffentlicht am 15.02.2014Please note : I will not take responsibility for any damage this method may cause you. This worked for me and many others. Use at your own risk. Type this in the terminal:set boot=(hd0,msdos6)set prefix=(hd0,msdos6)/boot/grubinsmod normalnormalPlease Like this video if it works!!!!! Kategorie Praktische Tipps & Styling Lizenz Standard-YouTube-Lizenz Mehr anzeigen Weniger anzeigen Wird geladen... Autoplay Wenn Autoplay aktiviert ist, wird die Wiedergabe automatisch mit einem der aktuellen Videovorschläge fortgesetzt. Nächstes Video How to Restore Windows boot loader After Deleting Linux and Grub loader - Dauer: 4:59 TechnoFusion 284.259 Aufrufe 4:59 Fix unknown filesystem Grub rescue Ubuntu, Windows - Dauer: 2:30 Anh Tuấn Đường 103.464 Aufrufe 2:30 Resolve: Error no such partition - Dauer: 3:37 Paolo Fattoruso 88.839 Aufrufe 3:37 Grub Rescue - Guide for beginners - Dauer: 12:22 TechZone++ 230.024 Aufrufe 12:22 Como resolver o error no such partition grub rescue - Dauer: 6:50 Dell Tutoriais 61.987 Aufrufe 6:50 How set up boot setting ERROR: UNKNOWN FILE SYSTEM, GRUB RESCUE (IN HINDI AUDIO) - Dauer: 5:09 Amit Verma 44.544 Aufrufe 5:09 No Such Partition Found grub rescue & BOOT MGR is Missing Problem Solved[Nov 2015 U