[chaliy]

Requested by Михайло · project thread

What changed

The rootfs now has a process view for the shell itself. /proc/self and /proc/1 hold identical static files:

• status: uid/gid 1000, no capabilities
• comm, cmdline, stat, cgroup (0::/), mounts
• exe -> /bin/bash, fd/0..2 -> /dev/std*

/proc/uptime counts seconds since the filesystem was built. /proc/mounts lists the one bashkit-vfs root that df already shows. $BASHPID is now set to 1, the same as $$; before it was empty.

Why

Step 3 of the level-up roadmap ("OS shape"). Scripts probe /proc/self/status, /proc/1/cgroup (container detection), readlink /proc/self/exe and /proc/uptime, and they compare $BASHPID with $$. On bashkit these failed with "No such file", which real Linux never does.

Before / After

Before:

$ grep -E '^(Pid|Uid):' /proc/self/status; readlink /proc/self/exe; echo "[$BASHPID]"
grep: /proc/self/status: No such file or directory
[]

After:

$ grep -E '^(Pid|Uid):' /proc/self/status; readlink /proc/self/exe; echo "[$BASHPID]"
Pid:	1
Uid:	1000	1000	1000	1000
/bin/bash
[1]

Risk

• Low
• All content is static or computed from the virtual identity, never from the host, so TM-INF-003 still holds. There is still no environ.
• The system layer is cached per identity, so startup cost is unchanged.
• Three tests that asserted the old /proc listing were updated:
  • the threat-model probe now also checks the synthetic content
  • the snapshot diff prunes /proc/uptime, which changes on every read
  • L-PROC-003 checks that /proc/1/exe is the synthetic /bin/bash

Checklist

• Tests added or updated (proc-self.test.sh, threat-model probe)
• Backward compatibility considered

https://claude.ai/code/session_019aFikmptPc91Fj4N2iDXQA

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	bashkit	37f874b	Commit Preview URL Branch Preview URL	Oct 07 2026, 05:36 PM