[Bug 230246] GPT label mishandling

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230246

            Bug ID: 230246
           Summary: GPT label mishandling
           Product: Base System
           Version: 11.2-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: mason at blisses.org

Observed:

root@:~ # gmirror label -v efi gpt/freebsd-efi0 gpt/freebsd-efi1
Metadata value stored on gpt/freebsd-efi0.
Metadata value stored on gpt/freebsd-efi1.
Done.
root@:~ # ls /dev/gpt
ls: /dev/gpt: No such file or directory
root@:~ # gmirror destroy efi
root@:~ # ls /dev/gpt
freebsd-boot0   freebsd-efi1    freebsd-swap0   gentoo-efi1
freebsd-boot1   freebsd-root0   freebsd-swap1   gentoo-root0
freebsd-efi0    freebsd-root1   gentoo-efi0     gentoo-root1
root@:~ # gmirror label -v efi gpt/freebsd-efi0 gpt/freebsd-efi1
Metadata value stored on gpt/freebsd-efi0.
Metadata value stored on gpt/freebsd-efi1.
Done.
root@:~ # ls /dev/gpt
ls: /dev/gpt: No such file or directory
root@:~ #

with kern.geom.mirror.debug=1:

GEOM_MIRROR: Device mirror/efi launched (2/2).
GEOM_MIRROR: Device efi: provider destroyed.
GEOM_MIRROR: Device efi destroyed.
GEOM_MIRROR: Device mirror/efi launched (2/2).
GEOM_MIRROR: Device efi: provider destroyed.
GEOM_MIRROR: Device efi destroyed.
GEOM_MIRROR: Device mirror/efi launched (2/2).
GEOM_MIRROR: Device efi: provider destroyed.
GEOM_MIRROR: Device efi destroyed.
GEOM_MIRROR: Device mirror/efi launched (2/2).
GEOM_MIRROR: Device efi: provider destroyed.
GEOM_MIRROR: Device efi destroyed.
GEOM_MIRROR: Device mirror/efi launched (2/2).
GEOM_MIRROR: Device efi: provider destroyed.
GEOM_MIRROR: Device efi destroyed.
GEOM_MIRROR[1]: Creating device efi (id=426299166).
GEOM_MIRROR[1]: Device efi created (2 components, id=426299166).
GEOM_MIRROR[1]: root_mount_hold 0xfffff80008aa8540
GEOM_MIRROR[1]: Adding disk diskid/DISK-CVDA5066005L1207GNp1 to efi.
GEOM_MIRROR[1]: Disk diskid/DISK-CVDA5066005L1207GNp1 state changed from NONE
to NEW (device efi).
GEOM_MIRROR[1]: Device efi: provider diskid/DISK-CVDA5066005L1207GNp1 detected.
GEOM_MIRROR[1]: Adding disk diskid/DISK-PNY20162178980100273p1 to efi.
GEOM_MIRROR[1]: Disk diskid/DISK-PNY20162178980100273p1 state changed from NONE
to NEW (device efi).
GEOM_MIRROR[1]: Device efi: provider diskid/DISK-PNY20162178980100273p1
detected.
GEOM_MIRROR[1]: Device efi state changed from STARTING to RUNNING.
GEOM_MIRROR[1]: Disk diskid/DISK-PNY20162178980100273p1 state changed from NEW
to ACTIVE (device efi).
GEOM_MIRROR[1]: Device efi: provider diskid/DISK-PNY20162178980100273p1
activated.
GEOM_MIRROR[1]: Disk diskid/DISK-CVDA5066005L1207GNp1 state changed from NEW to
ACTIVE (device efi).
GEOM_MIRROR[1]: Device efi: provider diskid/DISK-CVDA5066005L1207GNp1
activated.
GEOM_MIRROR[0]: Device mirror/efi launched (2/2).
GEOM_MIRROR[1]: root_mount_rel[2570] 0xfffff80008aa8540

markj on efnet suggested adding the partitions without referencing gpt labels,
and on doing that I could make the mirror without losing /dev/gpt.

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