This is an old revision of the document!
Follow the instructions on this page. But if you are using SATA drives, replace "hdb" with "sdb" and "hdb1" with "sdb1", etc.
http://www.yolinux.com/TUTORIALS/LinuxTutorialAdditionalHardDrive.html
For newer hardware, see http://go2linux.garron.me/linux/2010/09/uuid-linux-fstab-file-766 for UUID information.
Mounting a hard drive with UUID in /etc/fstab
4 July 2015 Notes
Backup any important files
vi /etc/fstab to remove old HDD entry first Remove/replace drive. Boot.
Use rescue mode if you forgot to undo /etc/fstab RHEL6 rescue mode:
vi /etc/fstab to remove old HDD entry.
Reboot, get this prompt:
SELinux relabeling required.
Note, each * is 1000 files that have been relabeled
Relabeling took 18 minutes on a 250MB primary drive 87% full. Not sure how many files it had.
Partition the new drive:
http://www.techotopia.com/index.php/Adding_a_New_Disk_Drive_to_an_RHEL_6_System
[root@metroliner: /dev/disk]# fdisk /dev/sdf
The device presents a logical sector size that is smaller than the physical sector size. Aligning to a physical sector (or optimal I/O) size boundary is recommended, or performance may be impacted.
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help): c DOS Compatibility flag is not set
Command (m for help): u Changing display/entry units to sectors
Command (m for help): p
Disk /dev/sdf: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x0000f111
Device Boot Start End Blocks Id System
Command (m for help): n Command action
e extended p primary partition (1-4)
p Partition number (1-4): Value out of range. Partition number (1-4): 1 First sector (2048-3907029167, default 2048): Using default value 2048 Last sector, +sectors or +size{K,M,G} (2048-3907029167, default 3907029167): Using default value 3907029167
Command (m for help): p
Disk /dev/sdf: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x0000f111
Device Boot Start End Blocks Id System
/dev/sdf1 2048 3907029167 1953513560 83 Linux
Command (m for help): w The partition table has been altered!
Calling ioctl() to re-read partition table. Syncing disks. [root@metroliner: /dev/disk]#
Format the new drive:
Open up Applications > System Tools > Disk Utility See Storage Devices on left side of GUI Click on the new hard drive Should see new partition Click Format Volume Give it a label, use default (ext4)
Update /etc/fstab with drive UUID in /dev/disk/by-uuid mount -a
Reboot as final test.