硬碟（2T及2T以上）分割槽掛載
阿新 • • 發佈：2019-01-02
1.2T硬碟分割槽方法
[[email protected] ~]# fdisk /dev/sdm Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel with disk identifier 0x286f1369. Changes will remain in memory only, until you decide to write them. After that, of course, the previous content won't be recoverable. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite) WARNING: The size of this disk is 4.0 TB (3999999687168 bytes). DOS partition table format can not be used on drives for volumes larger than (2199023255040 bytes) for 512-byte sectors. Use parted(1) and GUID partition table format (GPT). 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): m --檢視幫助 Command action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition l list known partition types m print this menu n add a new partition o create a new empty DOS partition table p print the partition table q quit without saving changes s create a new empty Sun disklabel t change a partition's system id u change display/entry units v verify the partition table w write table to disk and exit x extra functionality (experts only) Command (m for help): n --增加分割槽 Command action e extended p primary partition (1-4) p Partition number (1-4): 1 --設定分割槽ID First cylinder (1-486305, default 1): --直接回車，設定開始柱面，預設為1 Using default value 1 Last cylinder, +cylinders or +size{K,M,G} (1-267349, default 267349): --直接回車，設定結束柱面，預設為磁碟的最大空間 Using default value 267349 Command (m for help): w --寫入磁碟並退出 The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks.
2.大硬碟(2T以上)硬碟分割槽方法
[[email protected] ~]# parted /dev/sdm --對sdm進行操作 GNU Parted 1.8.1 使用 /dev/sdm Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) mklabel gpt -設定分割槽型別為gpt 警告: The existing disk label on /dev/sdb will be destroyed and all data on this disk will be lost. Do you want to continue? parted: invalid token: gpt 是/Yes/否/No? yes 新的磁碟標籤型別？ [gpt]? 回車 (parted) mkpart 分割槽名稱？ []? 回車 檔案系統型別？ [ext2]? ext4 起始點？ 0 結束點？ 3T --大小3TB，按實際要求設定，全盤都劃為一個分割槽寫-1 (parted) quit
3.格式化分割槽
[[email protected] ~] mkfs.ext4 -T largefile /dev/sdm1 mke2fs 1.42.9 (28-Dec-2013) /dev/sdm1 alignment is offset by 3072 bytes. This may result in very poor performance, (re)-partitioning suggested. 檔案系統標籤= OS type: Linux 塊大小=4096 (log=2) 分塊大小=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 3814784 inodes, 976562183 blocks 48828109 blocks (5.00%) reserved for the super user 第一個資料塊=0 Maximum filesystem blocks=4294967296 29803 block groups 32768 blocks per group, 32768 fragments per group 128 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968, 102400000, 214990848, 512000000, 550731776, 644972544 Allocating group tables: 完成 正在寫入inode表: 完成 Creating journal (32768 blocks): 完成 Writing superblocks and filesystem accounting information: 完成
4.掛載分割槽
[[email protected] ~]# mkdir /home/data1 --建立掛載點
[[email protected] ~]# mount /dev/sdm1 /home/data1 --掛載sdm1
[[email protected] ~]# tune2fs -m 1 /dev/sdm1
tune2fs 1.41.12 (17-May-2010)
Setting reserved blocks percentage to 1% (4883780 blocks)5.將分割槽資訊寫入/etc/fstab檔案
1.獲取硬碟分割槽UUID
[[email protected] ~]# blkid /dev/sdm1
/dev/sdm1: UUID="86269080-ad85-4811-9a3c-c77ce8282e2d" TYPE="ext4"# /etc/fstab
# Created by anaconda on Sat Dec 12 15:44:41 2015
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=e3dfd3df-2cf5-449b-8ed7-0a3a9fde8255 / ext3 defaults 1 1
UUID=f0378ca7-e884-480a-aaef-4a34623b18e3 /boot ext3 defaults 1 2
UUID=5bbf4384-d4c4-4ec6-9950-57ddebf1fed6 /home ext3 defaults 1 2
UUID=5b0a63a0-b8c2-4a0b-bad9-a9b351de0b14 swap swap defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
UUID=86269080-ad85-4811-9a3c-c77ce8282e2d /home/data1 ext4 defaults 0 0在系統裡建立了一個新的分割槽後，因為mount掛載在重啟後會失效，所以需要將分割槽資訊寫到/etc/fstab檔案中讓其永久掛載