Difference between revisions of "Reinstalling grub on RAID partition"
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[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[System administration tools]] > [[Filesystem, partition or disk related tools]] > [[Software raid configuration]] > [[Reinstalling grub on RAID partition]] | |||
Sometimes just using auto-detect may not work and system may not boot when one of the raid hard-disks is removed. In such cases we need to re-install grub on raid partition. To do this boot using installation CD and go to rescue mode. Then use 'chroot /mnt/sysimage'. Then use something like 'grub-install /dev/md<n>' where md<n> is the raid 1 partition for boot. Use 'sync' to ensure cached blocks from RAM are flushed to hard-disk. Then use 'reboot' and now system should boot properly even with one of the raid devices removed. | Sometimes just using auto-detect may not work and system may not boot when one of the raid hard-disks is removed. In such cases we need to re-install grub on raid partition. To do this boot using installation CD and go to rescue mode. Then use 'chroot /mnt/sysimage'. Then use something like 'grub-install /dev/md<n>' where md<n> is the raid 1 partition for boot. Use 'sync' to ensure cached blocks from RAM are flushed to hard-disk. Then use 'reboot' and now system should boot properly even with one of the raid devices removed. | ||
[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[System administration tools]] > [[Filesystem, partition or disk related tools]] > [[Software raid configuration]] > [[Reinstalling grub on RAID partition]] | |||
Latest revision as of 12:15, 28 July 2022
Home > CentOS > CentOS 6.x > System administration tools > Filesystem, partition or disk related tools > Software raid configuration > Reinstalling grub on RAID partition
Sometimes just using auto-detect may not work and system may not boot when one of the raid hard-disks is removed. In such cases we need to re-install grub on raid partition. To do this boot using installation CD and go to rescue mode. Then use 'chroot /mnt/sysimage'. Then use something like 'grub-install /dev/md<n>' where md<n> is the raid 1 partition for boot. Use 'sync' to ensure cached blocks from RAM are flushed to hard-disk. Then use 'reboot' and now system should boot properly even with one of the raid devices removed.
Home > CentOS > CentOS 6.x > System administration tools > Filesystem, partition or disk related tools > Software raid configuration > Reinstalling grub on RAID partition
