> ls -lha FreeBSD-14.0-STABLE-amd64.raw
-rw-r--r--  1 root wheel   6G Feb 17 11:40 FreeBSD-14.0-STABLE-amd64.raw
 
> truncate -s +10G FreeBSD-14.0-STABLE-amd64.raw
 
> ls -lha FreeBSD-14.0-STABLE-amd64.raw
-rw-r--r--  1 root wheel   16G Feb 17 11:41 FreeBSD-14.0-STABLE-amd64.raw
 
> du -sh FreeBSD-14.0-STABLE-amd64.raw
1.8G	FreeBSD-14.0-STABLE-amd64.raw
 
> truncate -s 20G FreeBSD-14.0-STABLE-amd64.raw
 
> ls -lha FreeBSD-14.0-STABLE-amd64.raw
-rw-r--r--  1 root wheel   20G Feb 17 11:43 FreeBSD-14.0-STABLE-amd64.raw
 
> du -sh FreeBSD-14.0-STABLE-amd64.raw
1.8G	FreeBSD-14.0-STABLE-amd64.raw
 
> screen -S FreeBSD-14.0-STABLE sh /usr/share/examples/bhyve/vmrun.sh -m 1G -t tap10 -d FreeBSD-14.0-STABLE-amd64.raw FreeBSD-14.0-STABLE
 
> gpart list | awk '/Geom name: /{print $NF}'
vtbd0
 
[root@freebsd ~]# gpart show vtbd0
=>      34  12649618  vtbd0  GPT  (16G) [CORRUPT]
        34       122      1  freebsd-boot  (61K)
       156     66584      2  efi  (33M)
     66740   2097152      3  freebsd-swap  (1.0G)
   2163892  10485760      4  freebsd-ufs  (5.0G)
 
[root@freebsd ~]# gpart resize -i 4 vtbd0
gpart: autofill: No space left on device
 
[root@freebsd ~]# growfs /
growfs: requested size 5.0GB is equal to the current filesystem size 5.0GB
 
[root@freebsd ~]# GEOM_PART: vtbd0 was automatically resized.
  Use `gpart commit vtbd0` to save changes or `gpart undo vtbd0` to revert them.
 
[root@freebsd ~]# gpart show vtbd0
=>      34  41942966  vtbd0  GPT  (20G)
        34       122      1  freebsd-boot  (61K)
       156     66584      2  efi  (33M)
     66740   2097152      3  freebsd-swap  (1.0G)
   2163892  10485760      4  freebsd-ufs  (5.0G)
  12649652  29293348         - free -  (14G)
 
[root@freebsd ~]# gpart commit vtbd0
 
[root@freebsd ~]# gpart resize -i 4 vtbd0
vtbd0p4 resized
 
[root@freebsd ~]# df -h
Filesystem         Size    Used   Avail Capacity  Mounted on
/dev/gpt/rootfs    4.8G    3.8G    636M    86%    /
devfs              1.0K      0B    1.0K     0%    /dev
/dev/gpt/efiesp     32M    648K     31M     2%    /boot/efi
 
[root@freebsd ~]# growfs /
Device is mounted read-write; resizing will result in temporary write suspension for /.
It's strongly recommended to make a backup before growing the file system.
OK to grow filesystem on /dev/gpt/rootfs, mounted on /, from 5.0GB to 19GB? [yes/no] yes
growfs: no room to allocate last cylinder group; leaving 7.6MB unused
super-block backups (for fsck_ffs -b #) at:
 11544384, 12827072, 14109760, 15392448, 16675136, 17957824, 19240512, 20523200, 21805888, 23088576, 24371264, 25653952, 26936640, 28219328, 29502016, 30784704, 32067392, 33350080, 34632768, 35915456, 37198144,
 38480832
 
[root@freebsd ~]# df -h /
Filesystem         Size    Used   Avail Capacity  Mounted on
/dev/gpt/rootfs     18G    3.8G     13G    23%    /
 
[root@freebsd ~]# gpart show vtbd0
=>      34  41942966  vtbd0  GPT  (20G)
        34       122      1  freebsd-boot  (61K)
       156     66584      2  efi  (33M)
     66740   2097152      3  freebsd-swap  (1.0G)
   2163892  39778892      4  freebsd-ufs  (19G)
  41942784       216         - free -  (108K)