套件：zerofree（1.1.1-1 以及其他的）

[ 原始碼： zerofree  ]

zero free blocks from ext2, ext3 and ext4 file-systems

Zerofree finds the unallocated blocks with non-zero value content in an ext2, ext3 or ext4 file-system and fills them with zeroes (zerofree can also work with another value than zero). This is mostly useful if the device on which this file-system resides is a disk image. In this case, depending on the type of disk image, a secondary utility may be able to reduce the size of the disk image after zerofree has been run. Zerofree requires the file-system to be unmounted or mounted read-only.

The usual way to achieve the same result (zeroing the unused blocks) is to run "dd" to create a file full of zeroes that takes up the entire free space on the drive, and then delete this file. This has many disadvantages, which zerofree alleviates:

 * it is slow;
 * it makes the disk image (temporarily) grow to its maximal extent;
 * it (temporarily) uses all free space on the disk, so other
   concurrent write actions may fail.

Zerofree has been written to be run from GNU/Linux systems installed as guest OSes inside a virtual machine. If this is not your case, you almost certainly don't need this package. (One other use case would be to erase sensitive data a little bit more securely than with a simple "rm").

標籤: 系統管理: 檔案系統工具, 實做語言: C, 角色: 程式

其他與 zerofree 有關的套件

• dep: libc6 (>= 2.34) [除 alpha, ia64, sh4]

  GNU C 函式庫：共用函式庫
  同時作為一個虛擬套件由這些套件填實： libc6-udeb

  dep: libc6 (>= 2.37) [sh4]

• dep: libc6.1 (>= 2.34) [alpha]

  GNU C 函式庫：共用函式庫
  同時作為一個虛擬套件由這些套件填實： libc6.1-udeb

  dep: libc6.1 (>= 2.37) [ia64]

• dep: libext2fs2t64 (>= 1.42)

  ext2/ext3/ext4 file system libraries

下載 zerofree

下載可用於所有硬體架構的

硬體架構	版本	套件大小	安裝後大小	檔案
alpha （非官方移植版）	1.1.1-1+b1	8。0 kB	82。0 kB	[檔案列表]
amd64	1.1.1-1+b1	8。1 kB	30。0 kB	[檔案列表]
arm64	1.1.1-1+b2	8。1 kB	82。0 kB	[檔案列表]
armel	1.1.1-1+b1	9。1 kB	25。0 kB	[檔案列表]
armhf	1.1.1-1+b1	8。5 kB	25。0 kB	[檔案列表]
hppa （非官方移植版）	1.1.1-1+b1	8。4 kB	25。0 kB	[檔案列表]
i386	1.1.1-1+b1	8。1 kB	29。0 kB	[檔案列表]
ia64 （非官方移植版）	1.1.1-1+b2	8。6 kB	26。0 kB	[檔案列表]
m68k （非官方移植版）	1.1.1-1+b1	7。8 kB	25。0 kB	[檔案列表]
mips64el	1.1.1-1+b1	8。2 kB	82。0 kB	[檔案列表]
ppc64 （非官方移植版）	1.1.1-1+b1	8。3 kB	82。0 kB	[檔案列表]
ppc64el	1.1.1-1+b1	8。2 kB	82。0 kB	[檔案列表]
riscv64	1.1.1-1+b2	7。9 kB	26。0 kB	[檔案列表]
s390x	1.1.1-1+b1	8。0 kB	25。0 kB	[檔案列表]
sh4 （非官方移植版）	1.1.1-1+b2	8。2 kB	81。0 kB	[檔案列表]
sparc64 （非官方移植版）	1.1.1-1+b1	8。0 kB	1，042。0 kB	[檔案列表]
x32 （非官方移植版）	1.1.1-1+b1	8。0 kB	29。0 kB	[檔案列表]