For some reason kernel commit e980f62353c697cbf0c4325e43df6e44399aeb64
add extra warning when the ioctl is used for DM devices. It seems we
can avoid this ioctl when the device has dm/uuid.
Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1469532
Signed-off-by: Karel Zak <kzak@redhat.com>
The wipe operation is potentially dangerous. Let's inform about it
always by 'p' (list) command to make sure user knowns about it.
Command (m for help): p
...
Device Boot Start End Sectors Size Id Type
/dev/sdc1 2048 204799 202752 99M 83 Linux
Filesystem/RAID signature on partition 1 will be wiped.
Addresses: https://github.com/karelzak/util-linux/issues/437
Signed-off-by: Karel Zak <kzak@redhat.com>
By default sfdisk creates partition table when a first partition is
specified, otherwise the device is not modified. This force users to
create at least one partition.
This commit allows to create empty label without partitions if "label:
<name>" header line is specified by script.
The commit also modifies "New situation:" output to list label name
and label identifier.
Addresses: https://github.com/karelzak/util-linux/issues/374
Signed-off-by: Karel Zak <kzak@redhat.com>
Almost any code calling get_terminal_width() checks returned width for
non-positive values and sets it to some default value (say, 80). So,
let's pass this default value directly to the function.
[kzak@redhat.com: - get_terminal_width() refactoring]
Signed-off-by: Karel Zak <kzak@redhat.com>
* removes list() label operation from internal API
The list() has been based on fdisk_info() it was useless for
anything else than print on stdout...
* add a new get_item() label operation and fdisk_get_disklabel_item() public API
The new API provides abstract and pretty simple way how to get label
specific disk label information, for example
fdisk_get_disklabel_item(cxt, GPT_LABELITEM_ENTRIESLBA, &iterm);
return LBA of the array with GPT entries.
Note that this patch does not implement public functions to get
data from the @item object.
* removes get_id() label operation -- it's subset of the new get_item()
* the new internal API is also used to implement backwardly compatible
fdisk_list_disklabel() and fdisk_get_disklabel_id()
Signed-off-by: Karel Zak <kzak@redhat.com>
The function uses "int" as argument, but for array size (and index) is better
to use unsigned type (size_t). If we mix "size_t" in util (e.g. fdisk)
and "int" in lib/strutils.c then result is unexpected behavior on
ppc64.
# sfdisk --list -o DEVICE,START,SIZE /dev/sdb
Disk /dev/sdb: 50 MiB, 52428800 bytes, 102400 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 32768 bytes
Disklabel type: gpt
Disk identifier: 3B8559DB-33AF-43E9-BEFC-C331D829B539
lt-sfdisk: libfdisk/src/label.c:178: fdisk_label_get_field: Assertion `id > 0' failed.
The patch cleanup all code to use size_t everywhere.
Signed-off-by: Karel Zak <kzak@redhat.com>
The zero may be valid size and start of the partition. This patch
introduces:
fdisk_partition_has_start()
fdisk_partition_has_size()
fdisk_partition_unset_size()
fdisk_partition_unset_start()
to make it possible to work with zero. The feature is internally
implemented by magic constant ((type) -1) for undefined sizes and
offsets.
Signed-off-by: Karel Zak <kzak@redhat.com>
Karel Zak
Ruediger Meier
Boris Egorov
Benno Schulenberg