Grub Hard Disk Error Centos Raid
after drive failure in Soft-Raid (1) Issues related to hardware problems Post Reply Print view Search Advanced search 4 posts • Page 1 of 1 meta1501 Posts: 4 Joined: 2009/02/04 12:00:19 System won't start after drive failure in Soft-Raid (1) Quote Postby meta1501 » 2012/06/27 14:20:09 Hello Forum,I'm running a HP ProLiant DL320G5P with two 250GB harddisks. OS: CentOS 5Raid: Raid 1 (CentOS Software Raid)The log file showed errors on the first harddisk but before I could set the hd to F(aulty) and remove it from the array (with mdadm), the system became completely stall. After reboot the bootsequence outputs many media errors and the server restarts. I powered down the server and removed the harddisk. Now I get Code: Select allAttempting Boot From Hard Drive (C:) GRUB Hard Disk Error.Just to be sure I booted the server with a Knoppix live system, which detects the harddisk and the SoftRAID. After mounting the partitions all data was present on the second disk. IMHO something went wrong with GRUB while installation of the server.How can I change the GRUB settings, so that the system boots from the second harddisk?There are several howtos on the web, I tried to follow this one:http://wiki.centos.org/HowTos/SoftwareRAIDonCentOS5but I can't access the GRUB menu, it always stops at Code: Select allAttempting Boot From Hard Drive (C:) GRUB Hard Disk Error.Any suggestion would be appreciated.regards,M Top gerald_clark Posts: 10595 Joined: 2005/08/05 15:19:54 Location: Northern Illinois, USA System won't start after drive failure in Soft-Raid (1) Quote Postby gerald_clark » 2012/06/27 14:26:13 Boot the CentOS DVD in rescue mode. Top pschaff Retired Moderator Posts: 18276 Joined: 2006/12/13 20:15:34 Location: Tidewater, Virginia, North America Contact: Contact pschaff Website Re: System won't start after drive failure in Soft-Raid (1) Quote Postby pschaff » 2012/07/02 17:55:04 ... and reinstall GRUB.If still having problems see the Wiki articles on GRUB installation and troubleshooting. Top Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending Post Reply Print view 4 posts • Page 1 of 1 Return to “CentOS 5 - Hardware Support” Jump to CentOS General Purpose CentOS - FAQ &
Setting up a Jasper Reporting Server Community Edition. Logistics Inventory and Picking Software Logistics Inventory Software for Mobile PDT Company CRM Implement a CRM system that fills the Company's much needed centralized CRM. Helping to organize sales flow, improve documentation and optimize efforts of sales staff. Current sales team was using varying techniques. TECHNOLOGY IN THIS DISCUSSION Join the Community! Creating your account only takes a few minutes. Join Now Hi All, I am having one doubt in the Centos RAID 1 configuration.I have added the new hard disk in the RAID 1 configured system.I am using 2 Hard Disk in the system for RAID 1.Whether the system can be switched ON in one hard disk after recovery of Data in new hard disk after replacing the http://www.centos.org/forums/viewtopic.php?t=24651 failed hard disk.I want to know whether the Centos can booted in One Hard Disk after recovery of Data. If it is not possible to boot in one Hard disk means Why? If it is possible to boot in one hard disk with RAID 1 means How to do that? Please help me it is very urgent. Reply Subscribe View Best Answer RELATED TOPICS: How do I know if a hard disk https://community.spiceworks.com/topic/808527-centos-raid-1-configuration-regarding in the RAID failed? how do i upgrade my hard disk to raid 5 raid 0 configuration 21 Replies Datil OP Best Answer Dataless Feb 24, 2015 at 6:05 UTC Assuming the RAID was created properly you should be able to boot from either one. You say you added a new drive, after it has fully synced the drives you can easily confirm this by unplugging the older drive and seeing if the boot loader comes up. The sync status can be confirmed using mdadm. Here's a link to a page with some information about using mdadm and RAID in general; http://www.ducea.com/2009/03/08/mdadm-cheat-sheet/ Oh, and Welcome to the Spiceworks Community! 6 Pimiento OP lakshmanashivaa Feb 24, 2015 at 6:34 UTC Thanks for your reply.I have configured Software RAID where the newly added hard disk is not booting after synching the hard disk.When I connected only the new hard disk with the system it shows that Disk Boot Failure Error.Why it is showing like that. 0 Datil OP Dataless Feb 24, 2015 at 7:36 UTC It's giving that error because the boot loader isn't installed on the second drive yet. There is a Wiki article on the CentOS site that shows how to install the boot loader on the second drive. Scroll down to "Section Two" http://wiki.centos.org/HowTos/SoftwareRAIDonCentOS5 It's late where I am, so I likely won't post back tonight. If this doesn't answer your question maybe SAM can chime in whe
installed it in RAID1, it works perfectly, ok! :)When I pull out one of the pendrive [good pendrive], it still boots http://grokbase.com/t/centos/centos/105nrdc951/grub-hard-disk-error up,hurrah :)But: ...When I pull out the other pendrive [i plug in the first one i tried] itsay's:GRUB hard disk errorWhat can I do?I already tried:grub-install /dev/sdc <-that's the pendrive http://serverfault.com/questions/612529/linux-raid-1-how-to-make-a-secondary-hd-boot name [bios -> hard driveemulation=hard drive, not auto]or:# grubfind /boot/grub/stage1hd0,0hd1,0root (hd0,0)setup (hd0,0)etc.What's the solution? Please help me:\I can't just dd the first 512 Byte of the "good pendrive", because grub hard theuuid is stored there. [needed for the sraid..]It gets to the grub, so it's not a ""boot-order problem""How can I install grub to these two pendrives, so that if one of thependrives die, it would still be a bootable system? reply Tweet Search Discussions Search All Groups centos 4 responses Oldest Nested Phil Schaffner This is the CentOS list. grub hard disk ... Does "etc." mean you installed GRUB on (hd1) as well? Did you do that before you started yanking devices? Phil Schaffner at May 21, 2010 at 4:43 pm ⇧ Jozsi Vadkan wrote on 05/21/2010 12:29 PM:I've got two pendrives.I want to install a Debian on them. RAID1.This is the CentOS list....I already tried:grub-install /dev/sdc <-that's the pendrive name [bios -> hard driveemulation=hard drive, not auto]or:# grubfind /boot/grub/stage1hd0,0hd1,0root (hd0,0)setup (hd0,0)etc.Does "etc." mean you installed GRUB on (hd1) as well? Did you do thatbefore you started yanking devices? reply | permalink Jozsi Vadkan yes, i tried to install it to hd1,0 too. 2010. 05. 21, p?ntek keltez?ssel 12.43-kor Phil Schaffner ezt ?rta: Jozsi Vadkan at May 22, 2010 at 3:41 pm ⇧ yes, i tried to install it to hd1,0 too.2010. 05. 21, p?ntek keltez?ssel 12.43-kor Phil Schaffner ezt ?rta:Jozsi Vadkan wrote on 05/21/2010 12:29 PM:I've got two pendrives.I want to install a Debian on them. RAID1.This is the CentOS list....I already tried:grub-install /dev/sdc <-that's the pendrive name [bios -> hard driveemulation=hard drive, not auto]or:# grubfind /bo
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have 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 Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a 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 Linux RAID 1: How to make a secondary HD boot? up vote 3 down vote favorite 2 I have the following RAID 1 on a Centos 6.5 server: # cat /proc/mdstat Personalities : [raid1] md0 : active raid1 sdb1[3] 974713720 blocks super 1.0 [2/1] [_U] bitmap: 7/8 pages [28KB], 65536KB chunk md1 : active raid1 sdb2[3] sda2[2] 2045944 blocks super 1.1 [2/2] [UU] unused devices: