Change Details

``` # sysctl kern.features.geom_part_ebr_compat kern.geom.part.ebr.compat_aliases kern.features.geom_part_ebr_compat: 1 kern.geom.part.ebr.compat_aliases: 1 # mdconfig -a -t swap -s 200 md0 # gpart create -s mbr md0 md0 created # gpart add -t ebr -i 4 md0 md0s4 added # gpart create -s ebr md0s4 md0s4 created # gpart add -t freebsd md0s4 md0s4+00000001 added # ls -l /dev/md0s* crw-r----- 1 root operator 0, 59 May 21 21:39 /dev/md0s4 crw-r----- 1 root operator 0, 60 May 21 21:42 /dev/md0s4+00000001 lrwxr-xr-x 1 root wheel 14 May 21 21:42 /dev/md0s5 -> md0s4+00000001 ```

``` # sysctl kern.features.geom_part_ebr_compat kern.geom.part.ebr.compat_aliases kern.features.geom_part_ebr_compat: 1 kern.geom.part.ebr.compat_aliases: 1 # mdconfig -a -t swap -s 200 md0 # gpart create -s mbr md0 md0 created # gpart add -t ebr -i 4 md0 md0s4 added # gpart create -s ebr md0s4 md0s4 created # gpart add -t freebsd md0s4 md0s4+00000001 added # ls -l /dev/md0s* crw-r----- 1 root operator 0, 59 May 21 21:39 /dev/md0s4 crw-r----- 1 root operator 0, 60 May 21 21:42 /dev/md0s4+00000001 lrwxr-xr-x 1 root wheel 14 May 21 21:42 /dev/md0s5 -> md0s4+00000001 ``` Splitting a middle EBR partition: ``` # gpart show ... => 1 199 md0 MBR (100K) 1 199 4 ebr (100K) => 0 199 md0s4 EBR (100K) 0 2 1 freebsd (512B) 2 50 3 freebsd (25K) 52 50 53 freebsd (25K) 102 50 103 freebsd (25K) 152 47 153 freebsd (23K) # ls -l /dev/md0s* crw-r----- 1 root operator 0, 59 May 21 21:39 /dev/md0s4 crw-r----- 1 root operator 0, 60 May 21 21:58 /dev/md0s4+00000001 crw-r----- 1 root operator 0, 62 May 22 07:14 /dev/md0s4+00000003 crw-r----- 1 root operator 0, 64 May 22 07:14 /dev/md0s4+00000053 crw-r----- 1 root operator 0, 96 May 22 07:14 /dev/md0s4+00000103 crw-r----- 1 root operator 0, 99 May 22 07:14 /dev/md0s4+00000153 lrwxr-xr-x 1 root wheel 14 May 21 21:58 /dev/md0s5 -> md0s4+00000001 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s6 -> md0s4+00000003 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s7 -> md0s4+00000053 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s8 -> md0s4+00000103 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s9 -> md0s4+00000153 # gpart delete -i 3 md0s4 md0s4+00000003 deleted # ls -l /dev/md0s* ... lrwxr-xr-x 1 root wheel 14 May 21 21:58 /dev/md0s5 -> md0s4+00000001 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s7 -> md0s4+00000053 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s8 -> md0s4+00000103 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s9 -> md0s4+00000153 # gpart add -t freebsd -s 25 md0s4 g_dev_taste: make_dev_alias_p() failed (name=md0s9, error=17) # <<< our alias unit number does not utilize g_part's built-in index uniqueing. md0s4+00000003 added # gpart add -t freebsd -s 25 md0s4 md0s4+00000028 added # ls -l /dev/md0s* ... lrwxr-xr-x 1 root wheel 14 May 21 21:58 /dev/md0s5 -> md0s4+00000001 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s7 -> md0s4+00000053 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s8 -> md0s4+00000103 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s9 -> md0s4+00000153 lrwxr-xr-x 1 root wheel 14 May 22 07:19 /dev/md0s10 -> md0s4+00000028 # N.B., no symlink for EBR partition +03 and the numbering for +28 is out of order. This is mildly ugly but I figure it is not a regression with compat mode, as compat mode never allowed editing the part table. And the non-compat mode never had the compat symlinks. ``` "Reboot" by saving the `md` image and restoring it. ``` # dd if=/dev/md0 of=./md0.ebr.img # mdconfig -d -u 0 # ls /dev/md0* ls: cannot access '/dev/md0*': No such file or directory # mdconfig -a -f ./md0.ebr.img g_dev_taste: make_dev_alias_p() failed (name=md0s0, error=17) # Mmm, these are bugs. g_dev_taste: make_dev_alias_p() failed (name=md0s0, error=17) g_dev_taste: make_dev_alias_p() failed (name=md0s0, error=17) g_dev_taste: make_dev_alias_p() failed (name=md0s0, error=17) g_dev_taste: make_dev_alias_p() failed (name=md0s0, error=17) md0 # gpart show => 0 199 md0s4 EBR (100K) 0 2 1 freebsd (512B) 2 25 3 freebsd (12K) 27 25 28 freebsd (12K) 52 50 53 freebsd (25K) 102 50 103 freebsd (25K) 152 47 153 freebsd (23K) # ls -l /dev/md0* rwxr-xr-x 1 root wheel 14 May 22 07:25 /dev/md0s0 -> md0s4+00000001 crw-r----- 1 root operator 0, 59 May 22 07:25 /dev/md0s4 crw-r----- 1 root operator 0, 60 May 22 07:25 /dev/md0s4+00000001 crw-r----- 1 root operator 0, 62 May 22 07:25 /dev/md0s4+00000003 crw-r----- 1 root operator 0, 63 May 22 07:25 /dev/md0s4+00000028 crw-r----- 1 root operator 0, 64 May 22 07:25 /dev/md0s4+00000053 crw-r----- 1 root operator 0, 93 May 22 07:25 /dev/md0s4+00000103 crw-r----- 1 root operator 0, 96 May 22 07:25 /dev/md0s4+00000153 ``` So that is totally wrong, will fix. But the expected fixed output is md0s6 -> +003, s7 -> +028, s8 -> +053, etc.

``` # sysctl kern.features.geom_part_ebr_compat kern.geom.part.ebr.compat_aliases kern.features.geom_part_ebr_compat: 1 kern.geom.part.ebr.compat_aliases: 1 # mdconfig -a -t swap -s 200 md0 # gpart create -s mbr md0 md0 created # gpart add -t ebr -i 4 md0 md0s4 added # gpart create -s ebr md0s4 md0s4 created # gpart add -t freebsd md0s4 md0s4+00000001 added # ls -l /dev/md0s* crw-r----- 1 root operator 0, 59 May 21 21:39 /dev/md0s4 crw-r----- 1 root operator 0, 60 May 21 21:42 /dev/md0s4+00000001 lrwxr-xr-x 1 root wheel 14 May 21 21:42 /dev/md0s5 -> md0s4+00000001 ``` Splitting a middle EBR partition: ``` # gpart show ... => 1 199 md0 MBR (100K) 1 199 4 ebr (100K) => 0 199 md0s4 EBR (100K) 0 2 1 freebsd (512B) 2 50 3 freebsd (25K) 52 50 53 freebsd (25K) 102 50 103 freebsd (25K) 152 47 153 freebsd (23K) # ls -l /dev/md0s* crw-r----- 1 root operator 0, 59 May 21 21:39 /dev/md0s4 crw-r----- 1 root operator 0, 60 May 21 21:58 /dev/md0s4+00000001 crw-r----- 1 root operator 0, 62 May 22 07:14 /dev/md0s4+00000003 crw-r----- 1 root operator 0, 64 May 22 07:14 /dev/md0s4+00000053 crw-r----- 1 root operator 0, 96 May 22 07:14 /dev/md0s4+00000103 crw-r----- 1 root operator 0, 99 May 22 07:14 /dev/md0s4+00000153 lrwxr-xr-x 1 root wheel 14 May 21 21:58 /dev/md0s5 -> md0s4+00000001 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s6 -> md0s4+00000003 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s7 -> md0s4+00000053 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s8 -> md0s4+00000103 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s9 -> md0s4+00000153 # gpart delete -i 3 md0s4 md0s4+00000003 deleted # ls -l /dev/md0s* ... lrwxr-xr-x 1 root wheel 14 May 21 21:58 /dev/md0s5 -> md0s4+00000001 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s7 -> md0s4+00000053 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s8 -> md0s4+00000103 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s9 -> md0s4+00000153 # gpart add -t freebsd -s 25 md0s4 g_dev_taste: make_dev_alias_p() failed (name=md0s9, error=17) # <<< our alias unit number does not utilize g_part's built-in index uniqueing. md0s4+00000003 added # gpart add -t freebsd -s 25 md0s4 md0s4+00000028 added # ls -l /dev/md0s* ... lrwxr-xr-x 1 root wheel 14 May 21 21:58 /dev/md0s5 -> md0s4+00000001 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s7 -> md0s4+00000053 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s8 -> md0s4+00000103 lrwxr-xr-x 1 root wheel 14 May 22 07:14 /dev/md0s9 -> md0s4+00000153 lrwxr-xr-x 1 root wheel 14 May 22 07:19 /dev/md0s10 -> md0s4+00000028 # N.B., no symlink for EBR partition +03 and the numbering for +28 is out of order. This is mildly ugly but I figure it is not a regression with compat mode, as compat mode never allowed editing the part table. And the non-compat mode never had the compat symlinks. ``` "Reboot" by saving the `md` image and restoring it. ``` # dd if=/dev/md0 of=./md0.ebr.img # mdconfig -d -u 0 # ls /dev/md0* ls: cannot access '/dev/md0*': No such file or directory # mdconfig -a -f ./md0.ebr.img g_dev_taste: make_dev_alias_p() failed (name=md0s0, error=17) # Mmm, these are bugs. g_dev_taste: make_dev_alias_p() failed (name=md0s0, error=17) g_dev_taste: make_dev_alias_p() failed (name=md0s0, error=17) g_dev_taste: make_dev_alias_p() failed (name=md0s0, error=17) g_dev_taste: make_dev_alias_p() failed (name=md0s0, error=17) md0 # gpart show => 0 199 md0s4 EBR (100K) 0 2 1 freebsd (512B) 2 25 3 freebsd (12K) 27 25 28 freebsd (12K) 52 50 53 freebsd (25K) 102 50 103 freebsd (25K) 152 47 153 freebsd (23K) # ls -l /dev/md0* rwxr-xr-x 1 root wheel 14 May 22 07:25 /dev/md0s0 -> md0s4+00000001 crw-r----- 1 root operator 0, 59 May 22 07:25 /dev/md0s4 crw-r----- 1 root operator 0, 60 May 22 07:25 /dev/md0s4+00000001 crw-r----- 1 root operator 0, 62 May 22 07:25 /dev/md0s4+00000003 crw-r----- 1 root operator 0, 63 May 22 07:25 /dev/md0s4+00000028 crw-r----- 1 root operator 0, 64 May 22 07:25 /dev/md0s4+00000053 crw-r----- 1 root operator 0, 93 May 22 07:25 /dev/md0s4+00000103 crw-r----- 1 root operator 0, 96 May 22 07:25 /dev/md0s4+00000153 ``` So that is totally wrong, will fix. But the expected fixed output is md0s6 -> +003, s7 -> +028, s8 -> +053, etc.