Oracle RAC install fails with `shmget` errors.

Issue

• Oracle RAC install fails with shmget errors:

15), st_ino=5800080, st_mode=S_IFREG|0640, st_nlink=1, st_uid=1001, st_gid=1134, st_blksize=4096, st_blocks=136, st_size=65536, st_atime=2013/03/19-13:56:39, st_mtime=2013/03/19-13:56:39, st_ctime=2013/03/19-13:56:39}) = 0
15675 shmget(0x84121228, 4096, 0)       = -1 ENOENT (No such file or directory)
15675 shmget(0x84121228, 4096, 0)       = -1 ENOENT (No such file or directory)
15675 shmget(0x84121228, 0, 0)          = -1 ENOENT (No such file or directory)
15675 shmget(0x84121229, 4096, 0)       = -1 ENOENT (No such file or directory)
15675 shmget(0x84121229, 4096, 0)       = -1 ENOENT (No such file or directory)
15675 shmget(0x84121229, 0, 0)          = -1 ENOENT (No such file or directory)
15675 shmget(0x8412122a, 4096, 0)       = -1 ENOENT (No such file or directory)
15675 shmget(0x8412122a, 4096, 0)       = -1 ENOENT (No such