Linux下U盤格式化、分割槽
阿新 • • 發佈：2019-02-07
Linux：
U盤刪除分割槽：
#fdisk /dev/sdb /*進入fdisk命令操作空間*/ #Command (m for help): m /*命令檢視*/ Command action a toggle a bootable flag #設定引導扇區 b edit bsd disklabel #編輯卷標（linux下使用的卷標bsd通用） c toggle the dos compatibility flag d delete a partition #刪除分割槽 l list known partition types #列出已知的分割槽型別 m print this menu n add a new partition #新增一個新的分割槽 o create a new empty DOS partition table #生成一個新的空DOS分割槽列表 p print the partition table #列印分割槽列表 q quit without saving changes #不儲存退出 s create a new empty Sun disklabel t change a partition's system id #改變一個分割槽列表的ID u change display/entry units v verify the partition table w write table to disk and exit #寫入列表到磁碟並退出 x extra functionality (experts only) #Command (m for help): p Disk /dev/sdb: 2055 MB, 2055208960 bytes 64 heads, 62 sectors/track, 1011 cylinders Units = cylinders of 3968 * 512 = 2031616 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 1 133 263871+ 6 FAT16 /dev/sdb2 * 134 200 132928 83 Linux /*boot 分割槽*/ ＃Command (m for help): d ＃Partition number (1-4): 1 ＃Command (m for help): p Disk /dev/sdb: 2055 MB, 2055208960 bytes 64 heads, 62 sectors/track, 1011 cylinders Units = cylinders of 3968 * 512 = 2031616 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb2 * 134 200 132928 83 Linu ＃Command (m for help): d Selected partition 2 ＃Command (m for help): p /*檢視此時已無分割槽*/ Disk /dev/sdb: 2055 MB, 2055208960 bytes 64 heads, 62 sectors/track, 1011 cylinders Units = cylinders of 3968 * 512 = 2031616 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System ＃Command (m for help): w /*最後寫入分割槽表*/ The partition table has been altered! Calling ioctl() to re-read partition table. WARNING: Re-reading the partition table failed with error 16: Device or resource busy. The kernel still uses the old table. The new table will be used at the next reboot. Syncing disks.
U盤不分割槽直接格式化：
/* 在整個/dev/sdb裝置上建立檔案系統 */
＃sudo mkfs -t vfat -I /dev/sdb1 /*在整個/dev/sdb裝置上建立檔案系統*/U盤分割槽並格式化：
/*給磁碟增加一分割槽並格式化*/ ＃Command (m for help): n Command action e extended p primary partition (1-4) ：p /*增加主分割槽*/ ＃Partition number (1-4): 1 ＃First cylinder (1-1011, default 1): /*回車預設*/ Using default value 1 ＃Last cylinder, +cylinders or +size{K,M,G} (1-1011, default 1011): /*回車預設*/ Using default value 1011 ＃Command (m for help): p /*此時有sdb1分割槽*/ Disk /dev/sdb: 2055 MB, 2055208960 bytes 64 heads, 62 sectors/track, 1011 cylinders Units = cylinders of 3968 * 512 = 2031616 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 1 1011 2005793 83 Linux ＃Command (m for help): w /*最後寫入分割槽表*/ The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks. ＃sudo mkfs -t vfat /dev/sdb1 /*分割槽完成後格式化*/
格式化完成後， 使用U盤之前需要修復一下，修復命令： fsck -t vfat /dev/sdb