diff options
Diffstat (limited to 'lib/geom/part/gpart.8')
| -rw-r--r-- | lib/geom/part/gpart.8 | 151 |
1 files changed, 67 insertions, 84 deletions
diff --git a/lib/geom/part/gpart.8 b/lib/geom/part/gpart.8 index 4dbe45b9953e..fa0b247c6174 100644 --- a/lib/geom/part/gpart.8 +++ b/lib/geom/part/gpart.8 @@ -22,9 +22,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.\" $FreeBSD$ -.\" -.Dd January 26, 2022 +.Dd July 26, 2023 .Dt GPART 8 .Os .Sh NAME @@ -221,7 +219,7 @@ MBR bootcode contains Volume Serial Number by default, and .Nm tries to preserve it when installing new bootstrap code. This option skips preservation to help with some versions of -.Xr boot0 8 +.Xr boot0cfg 8 that do not support Volume Serial Number. .It Fl b Ar bootcode Embed bootstrap code from the file @@ -544,14 +542,16 @@ See Several partitioning schemes are supported by the .Nm utility: -.Bl -tag -width ".Cm VTOC8" +.Bl -tag -width ".Cm BSD64" .It Cm APM Apple Partition Map, used by PowerPC(R) Macintosh(R) computers. Requires the .Cd GEOM_PART_APM kernel option. .It Cm BSD -Traditional BSD disklabel, usually used to subdivide MBR partitions. +Traditional BSD +.Xr disklabel 8 , +usually used to subdivide MBR partitions. .Po This scheme can also be used as the sole partitioning method, without an MBR. @@ -564,7 +564,9 @@ Requires the .Cm GEOM_PART_BSD kernel option. .It Cm BSD64 -64-bit implementation of BSD disklabel used in DragonFlyBSD to subdivide MBR +64-bit implementation of BSD disklabel used in +.Dx +to subdivide MBR or GPT partitions. Requires the .Cm GEOM_PART_BSD64 @@ -595,15 +597,6 @@ The option enables backward compatibility for partition names in the EBR scheme. It also prevents any type of actions on such partitions. -.It Cm VTOC8 -Sun's SMI Volume Table Of Contents, used by -.Tn SPARC64 -and -.Tn UltraSPARC -computers. -Requires the -.Cm GEOM_PART_VTOC8 -kernel option. .El .Pp See @@ -676,36 +669,36 @@ A partition dedicated to swap space. The scheme-specific types are .Qq Li "!FreeBSD-swap" -for APM, +for APM, and .Qq Li "!516e7cb5-6ecf-11d6-8ff8-00022d09712b" -for GPT, and tag 0x0901 for VTOC8. +for GPT. .It Cm freebsd-ufs A .Fx partition that contains a UFS or UFS2 filesystem. The scheme-specific types are .Qq Li "!FreeBSD-UFS" -for APM, +for APM, and .Qq Li "!516e7cb6-6ecf-11d6-8ff8-00022d09712b" -for GPT, and tag 0x0902 for VTOC8. +for GPT. .It Cm freebsd-vinum A .Fx partition that contains a Vinum volume. The scheme-specific types are .Qq Li "!FreeBSD-Vinum" -for APM, +for APM, and .Qq Li "!516e7cb8-6ecf-11d6-8ff8-00022d09712b" -for GPT, and tag 0x0903 for VTOC8. +for GPT. .It Cm freebsd-zfs A .Fx partition that contains a ZFS volume. The scheme-specific types are .Qq Li "!FreeBSD-ZFS" -for APM, +for APM, and .Qq Li "!516e7cba-6ecf-11d6-8ff8-00022d09712b" -for GPT, and 0x0904 for VTOC8. +for GPT. .El .Pp Other symbolic names that can be used with the @@ -770,50 +763,67 @@ See .Sx CAVEATS section below. .It Cm dragonfly-label32 -A DragonFlyBSD partition subdivided into filesystems with a +A +.Dx +partition subdivided into filesystems with a .Bx disklabel. The scheme-specific type is .Qq Li "!9d087404-1ca5-11dc-8817-01301bb8a9f5" for GPT. .It Cm dragonfly-label64 -A DragonFlyBSD partition subdivided into filesystems with a +A +.Dx +partition subdivided into filesystems with a disklabel64. The scheme-specific type is .Qq Li "!3d48ce54-1d16-11dc-8696-01301bb8a9f5" for GPT. .It Cm dragonfly-legacy -A legacy partition type used in DragonFlyBSD. +A legacy partition type used in +.Dx . The scheme-specific type is .Qq Li "!bd215ab2-1d16-11dc-8696-01301bb8a9f5" for GPT. .It Cm dragonfly-ccd -A DragonFlyBSD partition used with Concatenated Disk driver. +A +.Dx +partition used with Concatenated Disk driver. The scheme-specific type is .Qq Li "!dbd5211b-1ca5-11dc-8817-01301bb8a9f5" for GPT. .It Cm dragonfly-hammer -A DragonFlyBSD partition that contains a Hammer filesystem. +A +.Dx +partition that contains a Hammer filesystem. The scheme-specific type is .Qq Li "!61dc63ac-6e38-11dc-8513-01301bb8a9f5" for GPT. .It Cm dragonfly-hammer2 -A DragonFlyBSD partition that contains a Hammer2 filesystem. +A +.Dx +partition that contains a Hammer2 filesystem. The scheme-specific type is .Qq Li "!5cbb9ad1-862d-11dc-a94d-01301bb8a9f5" for GPT. .It Cm dragonfly-swap -A DragonFlyBSD partition dedicated to swap space. +A +.Dx +partition dedicated to swap space. The scheme-specific type is .Qq Li "!9d58fdbd-1ca5-11dc-8817-01301bb8a9f5" for GPT. .It Cm dragonfly-ufs -A DragonFlyBSD partition that contains an UFS1 filesystem. +A +.Dx +partition that contains an UFS1 filesystem. The scheme-specific type is .Qq Li "!9d94ce7c-1ca5-11dc-8817-01301bb8a9f5" for GPT. .It Cm dragonfly-vinum -A DragonFlyBSD partition used with Logical Volume Manager. +A +.Dx +partition used with Logical Volume Manager. The scheme-specific type is .Qq Li "!9dd4478f-1ca5-11dc-8817-01301bb8a9f5" for GPT. @@ -904,32 +914,44 @@ The scheme-specific type is .Qq Li "!5808c8aa-7e8f-42e0-85d2-e1e90434cfb3" for GPT. .It Cm netbsd-ccd -A NetBSD partition used with Concatenated Disk driver. +A +.Nx +partition used with Concatenated Disk driver. The scheme-specific type is .Qq Li "!2db519c4-b10f-11dc-b99b-0019d1879648" for GPT. .It Cm netbsd-cgd -An encrypted NetBSD partition. +An encrypted +.Nx +partition. The scheme-specific type is .Qq Li "!2db519ec-b10f-11dc-b99b-0019d1879648" for GPT. .It Cm netbsd-ffs -A NetBSD partition that contains an UFS filesystem. +A +.Nx +partition that contains an UFS filesystem. The scheme-specific type is .Qq Li "!49f48d5a-b10e-11dc-b99b-0019d1879648" for GPT. .It Cm netbsd-lfs -A NetBSD partition that contains an LFS filesystem. +A +.Nx +partition that contains an LFS filesystem. The scheme-specific type is .Qq Li "!49f48d82-b10e-11dc-b99b-0019d1879648" for GPT. .It Cm netbsd-raid -A NetBSD partition used in a software RAID configuration. +A +.Nx +partition used in a software RAID configuration. The scheme-specific type is .Qq Li "!49f48daa-b10e-11dc-b99b-0019d1879648" for GPT. .It Cm netbsd-swap -A NetBSD partition dedicated to swap space. +A +.Nx +partition dedicated to swap space. The scheme-specific type is .Qq Li "!49f48d32-b10e-11dc-b99b-0019d1879648" for GPT. @@ -1163,18 +1185,6 @@ After all pools are detected, .Pa /boot/loader is started from the first one found set as bootable. .Pp -The VTOC8 scheme does not support embedding bootstrap code. -Instead, the 8 KBytes bootstrap code image -.Pa /boot/boot1 -should be written with the -.Cm gpart bootcode -command with the -.Fl p Ar bootcode -option to all sufficiently large VTOC8 partitions. -To do this the -.Fl i Ar index -option could be omitted. -.Pp The APM scheme also does not support embedding bootstrap code. Instead, the 800 KBytes bootstrap code image .Pa /boot/boot1.hfs @@ -1273,7 +1283,7 @@ GEOM class. The default value is shown next to each variable. .Bl -tag -width indent .It Va kern.geom.part.allow_nesting : No 0 -By default, some schemes (currently BSD, BSD64 and VTOC8) do not permit +By default, some schemes (currently BSD and BSD64) do not permit further nested partitioning. This variable overrides this restriction and allows arbitrary nesting (except within partitions created at offset 0). @@ -1396,7 +1406,7 @@ sizes of up to 256 kB. .Pp Finally, we create and format an 8 GB .Cm freebsd-ufs -partition for the root filesystem, leaving the rest of the slice free +partition for the root filesystem, leaving the rest of the device free for additional filesystems: .Bd -literal -offset indent /sbin/gpart add -s 8G -t freebsd-ufs ada0 @@ -1410,12 +1420,12 @@ using a traditional .Bx disklabel. .Pp -First, we create the partition table and a single 64 GB partition, -then we mark that partition active (bootable) and install the -first-stage boot loader: +First, we create the partition table as well as a single partition 64 GB in +size and an alignment of 4 kB, then we mark that partition active (bootable) +and install the first-stage boot loader: .Bd -literal -offset indent /sbin/gpart create -s MBR ada0 -/sbin/gpart add -t freebsd -s 64G ada0 +/sbin/gpart add -t freebsd -s 64G -a 4k ada0 /sbin/gpart set -a active -i 1 ada0 /sbin/gpart bootcode -b /boot/boot0 ada0 .Ed @@ -1442,32 +1452,6 @@ label: .Bd -literal -offset indent /sbin/gpart bootcode -b /boot/boot ada0s1 .Ed -.Ss VTOC8 -.Pp -Create a VTOC8 scheme on -.Pa da0 : -.Bd -literal -offset indent -/sbin/gpart create -s VTOC8 da0 -.Ed -.Pp -Create a 512MB-sized -.Cm freebsd-ufs -partition to contain a UFS filesystem from which the system can boot. -.Bd -literal -offset indent -/sbin/gpart add -s 512M -t freebsd-ufs da0 -.Ed -.Pp -Create a 15GB-sized -.Cm freebsd-ufs -partition to contain a UFS filesystem and aligned on 4KB boundaries: -.Bd -literal -offset indent -/sbin/gpart add -s 15G -t freebsd-ufs -a 4k da0 -.Ed -.Pp -After creating all required partitions, embed bootstrap code into them: -.Bd -literal -offset indent -/sbin/gpart bootcode -p /boot/boot1 da0 -.Ed .Ss Deleting Partitions and Destroying the Partitioning Scheme If a .Em "Device busy" @@ -1496,7 +1480,6 @@ This is equivalent to the previous example: /sbin/gpart destroy -F da0 .Ed .Ss Backup and Restore -.Pp Create a backup of the partition table from .Pa da0 : .Bd -literal -offset indent |