Error 27 Unrecognized Command Grub
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Grub Ls Unrecognized Command
boot errors John Little Profile: Xjlittle Tags: Thanks! We'll email youwhen relevant content isadded and updated. Following Follow Storage If you've administered or customized
Lỗi Error 27 Unrecognized Command
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
Grub Ls Error 27 Unrecognized Command
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
Cannot mount selected partition
If the GRUB configuration file is completely missing you grub filesystem type unknown 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:
(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 ext2
Today's Posts Advanced Search Find the answer to your Linux question: Entire Site Articles Downloads Forums Linux Hosting Forum Your Distro error 8 kernel must be loaded before booting Ubuntu Linux grub repair If this is your first visit, be sure grub legacy commands to check out the FAQ by clicking the link above. You may have to register before you grub list disks can post: click 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 http://itknowledgeexchange.techtarget.com/linux-lotus-domino/grub-and-boot-errors/ 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 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 http://www.linuxforums.org/forum/ubuntu-linux/91700-grub-repair.html 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 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 spe
grub (Ubuntu) Edit Invalid Undecided Unassigned Edit You need to log in to change this bug's status. Affecting: grub (Ubuntu) Filed here by: jvivenot When: 2007-08-29 Completed: 2007-09-10 Target Distribution Baltix https://bugs.launchpad.net/bugs/135683 BOSS Juju Charms Collection Elbuntu Guadalinex Guadalinex Edu Kiwi Linux nUbuntu PLD Linux Tilix tuXlab Ubuntu Ubuntu Linaro Evaluation Build Ubuntu RTM Package (Find…) Project (Find…) Status Importance Invalid Undecided Assigned to Nobody http://www.linuxquestions.org/questions/linux-newbie-8/grub-17-error-697897/ Me Comment on this change (optional) Email me about changes to this bug report Also affects project (?) Also affects distribution/package Nominate for series Bug Description Binary package hint: grub Date: Wed, 29 error 27 Aug 2007 23:40:10 +0200 Package: grub Version: 0.97-29ubuntu3 Severity: important I just upgraded to Gutsy and had this problem. Grub can't boot on my Windows partition if I leave the savedefault command, because it returns an unrecognized command error. Thanks. Julien Vivenot -- System Information: Debian Release: lenny/sid APT prefers gutsy-updates APT policy: (500, 'gutsy-updates'), (500, 'gutsy-security'), (500, 'gutsy') Architecture: i386 (i686) Kernel: Linux 2.6.22-10-generic (SMP error 27 unrecognized w/1 CPU core) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages grub depends on: ii libc6 2.6.1-1ubuntu1 GNU C Library: Shared libraries ii libncurses5 5.6+20070716-1ubuntu1 Shared libraries for terminal hand ii volumeid 113-0ubuntu7 volume identification tool Add tags Tag help Tormod Volden (tormodvolden) wrote on 2007-09-09: #1 Thanks for your bug report. Please post your menu.lst file. The #savedefault= option is by default false so there should not be any savedefault commands in the boot entries. Changed in grub: assignee: nobody → tormodvolden status: New → Incomplete jvivenot (jvivenot) wrote on 2007-09-10: #2 There was one in my Windows XP boot section, and I swear I didn't add it manually. But I can't give you my menu.lst For several other reasons, I've removed Windows XP from this specific computer. :-s Tormod Volden (tormodvolden) wrote on 2007-09-10: #3 Thanks. Feel free to reopen if you can reproduce the issue. Changed in grub: assignee: tormodvolden → nobody status: Incomplete → Invalid See full activity log To post a comment you must log in. Report a bug This report contains Public information Edit Everyone can see this information. Mark as duplicate Convert to a question L
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