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Bug#1089516: kpartx won't handle boot cryptsetup'ed devices after decryption

From	Chris Hofstaedtler <zeha@debian.org>
Newsgroups	linux.debian.bugs.dist
Subject	Bug#1089516: kpartx won't handle boot cryptsetup'ed devices after decryption
Date	2024-12-08 20:50 +0100
Message-ID	<JRvrX-eWni-3@gated-at.bofh.it> (permalink)
References	<JRmoF-eFNq-9@gated-at.bofh.it> <JRu2R-eTGP-7@gated-at.bofh.it> <JRvrX-eWni-5@gated-at.bofh.it> <JRmoF-eFNq-9@gated-at.bofh.it> <JRvrX-eWni-5@gated-at.bofh.it>
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* Sergey Aleynikov <sergey.aleynikov@gmail.com> [241208 20:02]:
> > If dmsetup_env helps with anything, then you found some other
> > package's udev rules relying on extremely outdated stuff.
> >
> > dmsetup_env should have exported DM_NAME, DM_UUID, DM_STATE=ACTIVE,
> > DM_TABLE_STATE=LIVE. DM_NAME and DM_UUID should be exported by the
> > dmsetup udev helper (from src:lvm2).
> 
> I've generated a list of all files in /lib/udev/rules.d mentioning
> DM_* variables with the following script:
> 
> ack -c DM_ /lib/udev/rules.d/|grep -v ':0'|cut -d: -f1|xargs -n1 dpkg -S
> kpartx: /lib/udev/rules.d/68-del-part-nodes.rules
> dmsetup: /lib/udev/rules.d/55-dm.rules
> dmsetup: /lib/udev/rules.d/95-dm-notify.rules
> systemd: /lib/udev/rules.d/99-systemd.rules
> lvm2: /lib/udev/rules.d/56-lvm.rules
> lvm2: /lib/udev/rules.d/69-lvm.rules
> kpartx: /lib/udev/rules.d/60-kpartx.rules
> dmsetup: /lib/udev/rules.d/60-persistent-storage-dm.rules
> kpartx: /lib/udev/rules.d/56-dm-parts.rules
> 
> Than I proceeded to compare the content of all those files with
> originals from the respected packages, and the only different found
> was my modification of reverting a single line in 60-kpartx.rules, so
> if there is a some obsolete usage it's packaged with boorkworm.

> Should
> this report be then moved to lvm2?

Maybe, maybe not.

ISTM you'll need to debug why adding dmsetup_env changes anything.
Maybe there's some form of race and having dmsetup_env just changes
the timing.

Chris

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Bug#1089516: kpartx won't handle boot cryptsetup'ed devices after decryption Sergey Aleynikov <sergey.aleynikov+deb@gmail.com> - 2024-12-08 11:10 +0100
  Bug#1089516: kpartx won't handle boot cryptsetup'ed devices after decryption Chris Hofstaedtler <zeha@debian.org> - 2024-12-08 19:20 +0100
  Bug#1089516: kpartx won't handle boot cryptsetup'ed devices after decryption Chris Hofstaedtler <zeha@debian.org> - 2024-12-08 20:50 +0100

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