導(dǎo)讀:后端開發(fā)后端開發(fā) 使用虛擬機(jī)時(shí)發(fā)現(xiàn)磁盤空間不夠了，需要掛載一個(gè)磁盤以供繼續(xù)使用，但是磁盤不是添加就可以使用的，還需要進(jìn)行[v_notice]一、添加磁盤[/v_notice]添網(wǎng)站seo優(yōu)化課程公司網(wǎng)站建設(shè)。

使用虛擬機(jī)時(shí)發(fā)現(xiàn)磁盤空間不夠了，需要掛載一個(gè)磁盤以供繼續(xù)使用，但是磁盤不是添加就可以使用的，還需要進(jìn)行

[v_notice]一、添加磁盤[/v_notice]

添加加新硬盤重啟服務(wù)器

添加完之后就可以重啟機(jī)器了，如果你機(jī)器是開啟的，進(jìn)入系統(tǒng)并不能看見你剛添加的那塊磁盤，只有等系統(tǒng)重啟，重新加載之后才會顯示安裝的那塊磁盤

[v_notice]二、進(jìn)入系統(tǒng)[/v_notice]

使用root用戶進(jìn)入系統(tǒng)

[v_notice]三、 查看硬盤信息[/v_notice]

[root@localhost ~]# fdisk -l //磁盤命令 Disk /dev/sda: 21.5 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000c4cb5 Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 2611 20458496 8e Linux LVM Disk /dev/sdb: 21.5 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xd0f5c869 Device Boot Start End Blocks Id System /dev/sdb1 1 2610 20964793+ 83 Linux Disk /dev/sdc: 21.5 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000

可以看到這臺機(jī)器加載了三個(gè)磁盤sda、sdb、sdc 其中sda是初始磁盤，sdb已經(jīng)初始化且經(jīng)過使用，sdc是剛剛加載的，未格式化的新磁盤

[v_notice]四、創(chuàng)建新硬盤分區(qū)[/v_notice]

[root@localhost ~]# fdisk /dev/sdc #進(jìn)入磁盤 Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel with disk identifier 0x45a3cadb. 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: 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 Command action a toggle a bootable flag #設(shè)定可啟動標(biāo)記 b edit bsd disklabel c toggle the dos compatibility flag d delete a partition #刪除一個(gè)分區(qū) l list known partition types #各分區(qū)類型所對應(yīng)的ID m print this menu #菜單 n add a new partition #添加一個(gè)分區(qū) o create a new empty DOS partition table p print the partition table #顯示該磁盤下的當(dāng)前分區(qū)信息 q quit without saving changes #不保存退出 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 #保存退出 x extra functionality (experts only)

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