For brevity, we will only consider a raid 1 setup but the concepts and commands apply to all cases alike. Restoring a volume to software raid1 veeam community forums. If you are still getting errors, try taking the disk out of the raid and zeroing out more. Festplattenaustausch im softwareraiden hetzner dokuwiki. Recovering from windows software raid failure web and. My system has 6 scsi drives with 2 scsi controllers. After replacing sdd but before adding to the raid, grub decided lose its mind and refuse to boot. The software raid in linux is well tested, but even with well tested software, raid can fail. To install this on the second disk devhdc, we need to run grub.
Afterwards we must install the grub bootloader on the second hard drive dev sdb. I cant help with installing grub now but what i did to get my raid running is i followed this instruction. How to set up software raid1 on a running system incl. Advantagesdisadvantages of installing grub on a software. How to recover or rescue corrupted grub boot loader in. How to recover data and rebuild failed software raids. By default it tries my first disk, which gives a fatal error. However, i need to install windows 7 back, and i expect that it would alter grub and it did. Installing grub2 on mdadm software raid in debian wheezy. The fastest way to fix was to just reinstall the os since there was nothing important on it. Right now, my partition on my software raid 0 looks like th. Solved cant install grub2 on software raid my several installs of raid0 utilized grub 2 with no problems. Im trying to setup and install ubuntu on a raid 1 setup. Afterwards we must install the grub bootloader on the second hard drive devsdb.
Grub2installing community help wiki ubuntu documentation. In this tutorial well cover the process of rescuing a corrupted boot loader in centos 7 or red hat enterprise linux 7 and recover the a forgotten root password the grub boot loader can sometimes be damaged, compromised or deleted in centos due to various issues, such as hardware or software related failures or sometimes can be replaced by other operating systems, in case of dualbooting. This is the one advantage of having grub over raid 1, but its a big one. This page details the procedures for installing and reinstalling grub 2. In my setup, i have two disks that are each formatted in the following way. Rebuild the system is rebuilding the array, and is thus at risk of data loss until the array has completely rebuilt.
The problem is at the end of the installation, it tries to install grub. Recover rebuild failed software raid s part 8 in this guide we will discuss how to rebuild a software raid array without data loss when in the event of a disk failure. When the bootloaderstep is entered i selected grub2 each time i. I have a mdadm raid on my machine and i will find out, how i can do a downgraderemove the mdadm for easier backup with veeam. If the system partitions are on a software raid install grub 2 on all. Can someone describe how i can restore the full machine backup to a new harddrive same size as the original.
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