Difference between revisions of "Booting machine after removing hard-disks from software raid array"
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<yambe:breadcrumb>Software raid configuration</yambe:breadcrumb> | |||
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After this the system should boot. In case you have added new spare hard-disk then you must partition it appropriately. Use 'partprobe' to detect new partitions and then use 'mdadm' as explained above to add these new partitions in existing raid array. | After this the system should boot. In case you have added new spare hard-disk then you must partition it appropriately. Use 'partprobe' to detect new partitions and then use 'mdadm' as explained above to add these new partitions in existing raid array. | ||
<yambe:breadcrumb>Software raid configuration</yambe:breadcrumb> | |||
Revision as of 12:34, 18 November 2013
<yambe:breadcrumb>Software raid configuration</yambe:breadcrumb>
Booting machine after removing hard-disk from software raid array
When we try to boot after removing one hard-disk in some cases the system may boot properly. In other cases it would give error that partition or device '/dev/md<n>' does not exists. In such case we have to boot using linux installation cd in rescue mode and follow these steps:
- chroot /mnt/sysimage
- more /proc/mdstat
- mdadm --auto-detect
- more /proc/mdstat
- mdadm --detail -sv
- mdadm --detail -sv > /etc/mdadm.conf
- sync
- exit
- exit
After this the system should boot. In case you have added new spare hard-disk then you must partition it appropriately. Use 'partprobe' to detect new partitions and then use 'mdadm' as explained above to add these new partitions in existing raid array.
<yambe:breadcrumb>Software raid configuration</yambe:breadcrumb>
