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mke2fs: do not zero out first kilobyte. Closes 3247

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2012-01-11 01:02:31 +01:00
parent 499597d6ef
commit 7550201e9a
1 changed files with 5 additions and 1 deletions
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6
util-linux/mkfs_ext2.c
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@ -615,7 +615,11 @@ int mkfs_ext2_main(int argc UNUSED_PARAM, char **argv)
// zero boot sectors
memset(buf, 0, blocksize);
PUT(0, buf, 1024); // N.B. 1024 <= blocksize, so buf[0..1023] contains zeros
// Disabled: standard mke2fs doesn't do this, and
// on SPARC this destroys Sun disklabel.
// Users who need/want zeroing can easily do it with dd.
//PUT(0, buf, 1024); // N.B. 1024 <= blocksize, so buf[0..1023] contains zeros
// zero inode tables
for (i = 0; i < ngroups; ++i)
for (n = 0; n < inode_table_blocks; ++n)