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sfdisk: allow to disable bootable flag on all partitions 

Let use '-' rather than a partition number to disable the bootable flag
on all partitions:

 sfdisk --activate /dev/sdc -

Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2017-11-02 13:50:30 +01:00
parent 5d5ca9deaf
commit 8175ed3d74
2 changed files with 13 additions and 5 deletions
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12
disk-utils/sfdisk.8
View File

@ -78,10 +78,14 @@ partitions may be smaller. In this case \fBsfdisk\fR follows the default
values from the partition table and does not use built-in defaults for the
unused partition given with \fB\-N\fR. See also \fB\-\-append\fR.
.TP
.BR \-A , " \-\-activate \fIdevice " [ \fIpartition-number ...]
Switch on the bootable flag for the specified partitions.
If no \fIpartition-number\fR is specified,
then list the partitions with an enabled flag.
.BR \-A , " \-\-activate \fIdevice " [ \fIpartition-number...]
Switch on the bootable flag for the specified partitions and switch off the
bootable flag on all unspecified partitions. The special placeholder '-'
may be used instead of the partition numbers to switch off the bootable flag
on all partitions.
If no \fIpartition-number\fR is specified, then list the partitions with an
enabled flag.
.TP
.BR "\-\-delete \fIdevice " [ \fIpartition-number ...]
Delete all or the specified partitions.

6
disk-utils/sfdisk.c
View File

@ -853,7 +853,11 @@ static int command_activate(struct sfdisk *sf, int argc, char **argv)
/* sfdisk --activate <partno> [..] */
for (i = 1; i < argc; i++) {
int n = strtou32_or_err(argv[i], _("failed to parse partition number"));
int n;
if (i == 1 && strcmp(argv[1], "-") == 0)
break;
n = strtou32_or_err(argv[i], _("failed to parse partition number"));
rc = fdisk_toggle_partition_flag(sf->cxt, n - 1, DOS_FLAG_ACTIVE);
if (rc)