Signed-off-by: Benno Schulenberg <bensberg@xxxxxxxxxxxxx> --- disk-utils/sfdisk.8 | 63 +++++++++++++++++++++++++++----------------------- 1 files changed, 34 insertions(+), 29 deletions(-) diff --git a/disk-utils/sfdisk.8 b/disk-utils/sfdisk.8 index 52b1b34..277b843 100644 --- a/disk-utils/sfdisk.8 +++ b/disk-utils/sfdisk.8 @@ -64,14 +64,15 @@ Note that it's possible to address an unused partition with \fB\-N\fR. For example, an MBR always contains 4 partitions, but the number of used 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. +unused partition given with \fB\-N\fR. See also \fB\-\-append\fR. .TP -.BR \-A , " \-\-activate \fIdevice\fR [" \fIpartition-number\fR...] -Switch on the bootable flag. If no \fIpartition-number\fR is specified, -then all partitions with an enabled flag are listed. +.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. .TP -.BR " \-\-delete \fIdevice\fR [" \fIpartition-number\fR...] -Delete all or specified partitions. +.BR "\-\-delete \fIdevice " [ \fIpartition-number ...] +Delete all or the specified partitions. .TP .BR \-d , " \-\-dump " \fIdevice\fR Dump the partitions of a device in a format that is usable as input to \fBsfdisk\fR. @@ -91,30 +92,30 @@ together with \fB\-\-verify\fR. .BR \-F , " \-\-list-free " [ \fIdevice ...] List the free unpartitioned areas on all or the specified devices. .TP -.BR \-\-part\-attrs " \fIdevice partno [" \fIattrs ] -Change the GPT partition attribute bits. If \fIattrs\fR is not specified, -then print the current partition settings. The \fIattrs\fR argument is a +.BR "\-\-part\-attrs \fIdevice partition-number " [ \fIattributes ] +Change the GPT partition attribute bits. If \fIattributes\fR is not specified, +then print the current partition settings. The \fIattributes\fR argument is a comma- or space-delimited list of bits. The currently supported attribute bits are: RequiredPartiton, NoBlockIOProtocol, LegacyBIOSBootable and GUID-specific bits in the range from 48 to 63. For example, the string "RequiredPartiton,50,51" sets three bits. .TP -.BR \-\-part\-label " \fIdevice partno [" \fIlabel ] +.BR "\-\-part\-label \fIdevice partition-number " [ \fIlabel ] Change the GPT partition name (label). If \fIlabel\fR is not specified, then print the current partition label. .TP -.BR \-\-part\-type " \fIdevice partno [" \fItype ] +.BR "\-\-part\-type \fIdevice partition-number " [ \fItype ] Change the partition type. If \fItype\fR is not specified, then print the current partition type. The \fItype\fR argument is hexadecimal for MBR, or a GUID for GPT. For backward compatibility the options \fB\-c\fR and -\fB\-\-id\fR have the same meaning. +\fB\-\-id\fR have the same meaning as this one. .TP -.BR \-\-part\-uuid " \fIdevice partno [" \fIuuid ] +.BR "\-\-part\-uuid \fIdevice partition-number " [ \fIuuid ] Change the GPT partition UUID. If \fIuuid\fR is not specified, then print the current partition UUID. .TP .BR \-r , " \-\-reorder " \fIdevice -Fix partitions order by start offset. +Renumber the partitions, ordering them by their start offset. .TP .BR \-s , " \-\-show\-size " [ \fIdevice ...] List the sizes of all or the specified devices. @@ -155,26 +156,27 @@ Do everything except writing to the device. .B \-\-no\-reread Do not check through the re-read-partition-table ioctl whether the device is in use. .TP -.BR \-O , " \-\-backup\-file " \fIpath\fR +.BR \-O , " \-\-backup\-file " \fIpath Override the default backup file name. Note that the device name and offset are always appended to the file name. .TP .BR \-\-move-data [ =\fIpath ] -Move data after partition relocation, for example when move begin of the -partition to another place on the disk. The size of the partition has to be the -same, the new and old location may overlap. The option requires \fB\-N\fR to be -processed on one specified partition only. +Move data after partition relocation, for example when moving the beginning +of a partition to another place on the disk. The size of the partition has +to remain the same, the new and old location may overlap. This option requires +option \fB\-N\fR in order to be processed on one specific partition only. The \fIpath\fR overrides the default log file name -(the default is ~/sfdisk-<devname>.move). The log file contains information -about all read/write oprations with the partition data. +(the default is ~/sfdisk-<devname>.move). The log file contains information +about all read/write operations on the partition data. -Note that this operation is ricky and not atomic. \fBDon't forget to backup your data!\fR +Note that this operation is risky and not atomic. \fBDon't forget to backup your data!\fR -The example below creates 100MiB free area before the first partition and moves -data (e.g. filesystem), the next command creates a new partition from the free -space (at offset 2048) and the last command reorder partitions to match disk -order (original sdc1 will be sdc2). +In the example below, the first command creates a 100MiB free area before +the first partition and moves the data it contains (e.g. a filesystem), +the next command creates a new partition from the free space (at offset 2048), +and the last command reorders partitions to match disk order +(the original sdc1 will become sdc2). .RS .sp .B "echo '+100M,' | sfdisk --move-data /dev/sdc -N 1" @@ -277,7 +279,7 @@ given, the default for each field is its previous value. The default value of .I start is the first non-assigned sector aligned according to device I/O limits. -The default start offset for the first partition is 1 MiB. The offset may +The default start offset for the first partition is 1 MiB. The offset may be followed by the multiplicative suffixes (KiB, MiB, GiB, TiB, PiB, EiB, ZiB and YiB) then the number is interpreted as offset in bytes. .sp @@ -342,7 +344,7 @@ more readable. .RE The .I device -field is optional. \fBsfdisk\fRextracts the partition number from the +field is optional. \fBsfdisk\fR extracts the partition number from the device name. It allows to specify the partitions in random order. This functionality is mostly used by \fB\-\-dump\fR. Don't use it if you are not sure. @@ -419,7 +421,10 @@ For example: The GPT header can later be restored by: .RS .sp -.B dd if=~/sfdisk-sda-0x00000200.bak of=/dev/sda seek=$((0x00000200)) bs=1 conv=notrunc +.nf +.B "dd if=~/sfdisk-sda-0x00000200.bak of=/dev/sda \e" +.B " seek=$((0x00000200)) bs=1 conv=notrunc" +.fi .sp .RE Note that \fBsfdisk\fR since version 2.26 no longer provides the \fB\-I\fR option to -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe util-linux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
