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| author | Karel Zak | 2010-03-19 15:56:27 +0100 |
|---|---|---|
| committer | Karel Zak | 2010-03-19 15:56:27 +0100 |
| commit | 7f152745c33567f49807019fd4f5f72eadfd4fd4 (patch) | |
| tree | 3ce1170267b974feae48c4f64c1ad150fae920a0 /fdisk/fdisk.8 | |
| parent | docs: update TODO file (diff) | |
| download | kernel-qcow2-util-linux-7f152745c33567f49807019fd4f5f72eadfd4fd4.tar.gz kernel-qcow2-util-linux-7f152745c33567f49807019fd4f5f72eadfd4fd4.tar.xz kernel-qcow2-util-linux-7f152745c33567f49807019fd4f5f72eadfd4fd4.zip | |
fdisk: fix -b <sectorsize>
The old fdisk (<2.17) does not differentiate between logical and
physical sector size, it uses the <sectorsize> for everything.
Now, we have logical and physical sectors size, but the -b option
changes the logical size only. The second bug is that "fdisk -b <sz>"
does not read topology information (it means that all I/O limits and
physical sector size are 512 (default).
The backwardly compatible bug fix is to override both sizes, logical
and physical if "-b" is used.
In future we can add a special option for physical size only.
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'fdisk/fdisk.8')
| -rw-r--r-- | fdisk/fdisk.8 | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fdisk/fdisk.8 b/fdisk/fdisk.8 index 367837d9d..30dc9678a 100644 --- a/fdisk/fdisk.8 +++ b/fdisk/fdisk.8 @@ -182,7 +182,9 @@ program and Linux partitions with the Linux fdisk or Linux cfdisk program. .BI "\-b " sectorsize Specify the sector size of the disk. Valid values are 512, 1024, 2048 or 4096. (Recent kernels know the sector size. Use this only on old kernels or -to override the kernel's ideas.) +to override the kernel's ideas.) Since util-linux-ng 2.17 fdisk differentiates +between logical and physical sector size. This option changes both sector sizes to +.IB sectorsize . .TP .BI \-h Print help and then exit. |