Which plugin provides the mount command?

[LSantha]

Question

When I type mount with no arguments in the JNode shell, it lists mounted filesystems. Which plugin and class implements this command, and where is it registered?

Context

Tracing how shell builtins resolve to plugin code.

What Was Tried

Looked at the shell command list but could not tell which plugin owns mount.

Triage Addendum (auto, 2026-09-24)

• Area / Kind: area/fs (Sub: mount command plugin) + area/shell + kind/question
• Blast radius: L3 plugin (filesystem command plugin contributes the class to the shell alias extension point)
• Expected scope: In: fs/src/commands/org/jnode/fs/command/MountCommand.java, fs/descriptors/org.jnode.fs.command.xml, and Shell-Commands registration guidance. Out: source, descriptor, API, and behavior changes.
• Test path: Docs-only; verify the provider class, alias registration, and shell resolution path against those sources.
• Merge signal: human-review (comment-only codebase research; no code or documentation change)
• Gaps: none
• Full report: ## Triage comment below.

[LSantha]

/oc triage issue #664

Triage run ONLY. Load the jnode-triage-issue skill and obey it. Output is exactly one ## Triage comment plus kind/area label edits. FORBIDDEN in this run: git checkout -b, git push, gh pr create, any branch, any PR. Audit kind/area labels (correct mislabels), assess repro-sufficiency, estimate blast radius, post one ## Triage comment (clear shape when actionable, vague shape with the needs-info literals only when human input is truly required).

[LSantha]

Triage

• Area: area/shell
• Kind: kind/question
• Repro: Question: Which plugin and class implements the /dev/sda1 on / type ext4 (rw,relatime,discard,errors=remount-ro,commit=30)
  devtmpfs on /dev type devtmpfs (rw,nosuid,noexec,relatime,size=8181664k,nr_inodes=2045416,mode=755,inode64)
  proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
  sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
  securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
  tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,inode64)
  devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
  tmpfs on /run type tmpfs (rw,nosuid,nodev,size=3274692k,nr_inodes=819200,mode=755,inode64)
  tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k,inode64)
  cgroup2 on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate,memory_recursiveprot)
  none on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
  efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
  bpf on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
  systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=32,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=1141)
  hugetlbfs on /dev/hugepages type hugetlbfs (rw,nosuid,nodev,relatime,pagesize=2M)
  mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
  debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
  tracefs on /sys/kernel/tracing type tracefs (rw,nosuid,nodev,noexec,relatime)
  fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
  configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
  /dev/sda16 on /boot type ext4 (rw,relatime,discard)
  /dev/sda15 on /boot/efi type vfat (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
  binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,nosuid,nodev,noexec,relatime)
  tmpfs on /run/user/1001 type tmpfs (rw,nosuid,nodev,relatime,size=1637344k,nr_inodes=409336,mode=700,uid=1001,gid=1001,inode64) command, and where is it registered? Context: Tracing how shell builtins resolve to plugin code. What was tried: Looked at the shell command list but could not tell which plugin owns mount.
• Blast radius: L3 plugin (plugin descriptor XML registration and command class linkage)
• Expected scope: Documentation answer in comment; locate plugin and class
• Test path: Docs-only; verify by reading and
• Merge signal: human-review (documentation change, not a code fix)
• Gaps: none
• Suggested next: investigate
• Split proposal: none - focused
• Labels applied: kind/question, area/shell (added)

Finding: The /dev/sda1 on / type ext4 (rw,relatime,discard,errors=remount-ro,commit=30)
devtmpfs on /dev type devtmpfs (rw,nosuid,noexec,relatime,size=8181664k,nr_inodes=2045416,mode=755,inode64)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,inode64)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,size=3274692k,nr_inodes=819200,mode=755,inode64)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k,inode64)
cgroup2 on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate,memory_recursiveprot)
none on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
bpf on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=32,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=1141)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,nosuid,nodev,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
tracefs on /sys/kernel/tracing type tracefs (rw,nosuid,nodev,noexec,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
/dev/sda16 on /boot type ext4 (rw,relatime,discard)
/dev/sda15 on /boot/efi type vfat (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,nosuid,nodev,noexec,relatime)
tmpfs on /run/user/1001 type tmpfs (rw,nosuid,nodev,relatime,size=1637344k,nr_inodes=409336,mode=700,uid=1001,gid=1001,inode64) command is implemented by class, registered in the plugin descriptor (fs/descriptors/org.jnode.fs.command.xml:44).

Code locations:

• Command:
• Plugin registration:

Plugin hierarchy: requires , , and plugins.

This is a standard shell builtin command plugin implementation.

[LSantha]

Triage

• Area: area/shell
• Kind: kind/question
• Repro: Question: Which plugin and class implements the /dev/sda1 on / type ext4 (rw,relatime,discard,errors=remount-ro,commit=30)
  devtmpfs on /dev type devtmpfs (rw,nosuid,noexec,relatime,size=8181664k,nr_inodes=2045416,mode=755,inode64)
  proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
  sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
  securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
  tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,inode64)
  devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
  tmpfs on /run type tmpfs (rw,nosuid,nodev,size=3274692k,nr_inodes=819200,mode=755,inode64)
  tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k,inode64)
  cgroup2 on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate,memory_recursiveprot)
  none on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
  efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
  bpf on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
  systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=32,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=1141)
  hugetlbfs on /dev/hugepages type hugetlbfs (rw,nosuid,nodev,relatime,pagesize=2M)
  mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
  debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
  tracefs on /sys/kernel/tracing type tracefs (rw,nosuid,nodev,noexec,relatime)
  fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
  configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
  /dev/sda16 on /boot type ext4 (rw,relatime,discard)
  /dev/sda15 on /boot/efi type vfat (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
  binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,nosuid,nodev,noexec,relatime)
  tmpfs on /run/user/1001 type tmpfs (rw,nosuid,nodev,relatime,size=1637344k,nr_inodes=409336,mode=700,uid=1001,gid=1001,inode64) command, and where is it registered? Context: Tracing how shell builtins resolve to plugin code. What was tried: Looked at the shell command list but could not tell which plugin owns mount.
• Blast radius: L3 plugin (plugin descriptor XML registration and command class linkage)
• Expected scope: Documentation answer in comment; locate org.jnode.fs.command plugin and org.jnode.fs.command.MountCommand class
• Test path: Docs-only; verify by reading org.jnode.fs.command.xml and MountCommand.java
• Merge signal: human-review (documentation change, not a code fix)
• Gaps: none
• Suggested next: investigate
• Split proposal: none - focused
• Labels applied: kind/question, area/shell (added)

Finding: The mount command is implemented by org.jnode.fs.command.MountCommand class, registered in the org.jnode.fs.command plugin descriptor (fs/descriptors/org.jnode.fs.command.xml:44).

Code locations:

• Command: fs/src/commands/org/jnode/fs/command/MountCommand.java
• Plugin registration: fs/descriptors/org.jnode.fs.command.xml:44

Plugin hierarchy: org.jnode.fs.command requires org.jnode.fs, org.jnode.shell, and org.jnode.shell.syntax plugins.

This is a standard shell builtin command plugin implementation.

[LSantha]

Done

opencode session  |  github run

[LSantha]

Reopening: closed without an investigation answer (false completion under investigation). Re-running triage with light investigate scope.