So, I recently installed a server with several software RAID partitions over three drives. After installation, I pulled out the CD-ROM and added a fourth drive.
I believe I successfully grew all the arrays (RAID1 for /boot, RAID5 for /, and RAID1 for swap), but I'm not seeing that growth in my filesystem.
The root partition is no larger than it previously was, even though the specific array that is mounted to it has grown to the proper size.
$ df -h
Code:Filesystem Size Used Avail Use% Mounted on /dev/md2 292G 6.8G 271G 3% / none 118M 292K 118M 1% /dev none 123M 0 123M 0% /dev/shm none 123M 472K 122M 1% /var/run none 123M 0 123M 0% /var/lock none 123M 0 123M 0% /lib/init/rw /dev/md0 138M 36M 96M 27% /boot /dev/md3 166G 157G 516K 100% /raid0
$ sudo mdadm --detail /dev/md2
Code:/dev/md2: Version : 00.90 Creation Time : Mon Aug 23 23:26:06 2010 Raid Level : raid5 Array Size : 466114368 (444.52 GiB 477.30 GB) Used Dev Size : 155371456 (148.17 GiB 159.10 GB) Raid Devices : 4 Total Devices : 4 Preferred Minor : 2 Persistence : Superblock is persistent Update Time : Sat Sep 4 17:44:05 2010 State : clean Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 64K UUID : 82dc6060:7279efd4:f62956d9:98a26853 Events : 0.18594 Number Major Minor RaidDevice State 0 8 3 0 active sync /dev/sda3 1 8 19 1 active sync /dev/sdb3 2 8 51 2 active sync /dev/sdd3 3 8 35 3 active sync /dev/sdc3
I'm sure I'm missing something quite simple here, but how can I resize my root partition to the full size of /dev/md2?
I should note that even though I ripped out the CD-ROM in favor of an additional HDD, I can probably run a live session from a USB stick (although I've been unable to thus far- any solution that can avoid doing so is preferable).
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