Devuan bug report logs - #428
cgroupfs-mount: Cannot remove cgroupfs-mount

Package: cgroupfs-mount; Reported by: Ryutaroh Matsumoto <[email protected]>; Keywords: debian; Done: [email protected]; Maintainer for cgroupfs-mount is Tanya <[email protected]>.

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Subject: #428: fixed in src:cgroupfs-mount version 1.4+devuan1
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Version: 1.4+devuan1

Source package cgroupfs-mount (1.4+devuan1) added to Devuan suite unstable.

This closes bug report 428.

Thanks

DAK managing the Devuan archive

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Format: 1.8
Date: Mon, 29 Jun 2020 23:20:15 +0200
Source: cgroupfs-mount
Binary: cgroupfs-mount
Architecture: source
Version: 1.4+devuan1
Distribution: unstable
Urgency: medium
Maintainer: Tanya <[email protected]>
Changed-By: Tanya <[email protected]>
Description:
 cgroupfs-mount - Light-weight package to set up cgroupfs mounts
Closes: 426 428
Changes:
 cgroupfs-mount (1.4+devuan1) unstable; urgency=medium
 .
   * Create systemd cgroup if not present (Closes: #426)
   * Limit cgroups unmounting to mounts generated by these scripts (Closes: #428)
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Notification sent to Ryutaroh Matsumoto <[email protected]>:
bug acknowledged by developer. Full text available.

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Reply sent to [email protected]:
You have taken responsibility. Full text available.

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Set bug forwarded-to-address to 'https://bugs.debian.org/950986'. Request was from Mark Hindley <[email protected]> to [email protected]. Full text available.

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Added tag(s) debian. Request was from Mark Hindley <[email protected]> to [email protected]. Full text available.

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Date: Sat, 25 Apr 2020 10:00:16 +0100
From: Mark Hindley <[email protected]>
To: [email protected], Ryutaroh Matsumoto <[email protected]>
Subject: Re: cgroupfs-mount: Cannot remove cgroupfs-mount
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Control: tags -1 debian

Ryutaroh,

On Sat, 25 Apr 2020 04:56:02 +0900 (JST) Ryutaroh Matsumoto <[email protected]> wrote:
> Package: cgroupfs-mount
> Version: 1.4
> Severity: normal
> 
> Dear Maintainer,
> 
> After installation of cgroupfs-mount, tring to remove it gives
> 
> Removing cgroupfs-mount (1.4) ...
> Unmounting cgroupfs hierarchyumount: /sys/fs/cgroup/elogind: target is busy.
> invoke-rc.d: initscript cgroupfs-mount, action "stop" failed.
> dpkg: error processing package cgroupfs-mount (--remove):
>  installed cgroupfs-mount package pre-removal script subprocess returned error exit status 32
> Errors were encountered while processing:
>  cgroupfs-mount
> E: Sub-process /usr/bin/dpkg returned an error code (1)

Thanks. Yes I bumped into this a couple of days ago.

The problem appears to be that /usr/bin/cgroupfs-umount tries to unmount all the
cgroups, even if it didn't originally create them. elogind creates its own cgroupfs and is
still using it.

As cgroupfs-mount is not a forked package and Devuan uses Debian's package
directly it needs to be fixed in Debian. There is already a Debian bug about it
at https://bugs.debian.org/950986.

I do have a workaround: cgroupfs-mount removes cleanly in single user mode (when
elogind is not running), or you can stop elogind first and then remove
cgroupfs-mount. However, this will also lose your logind sessions which may or
may not matter to you. Obviously new ones are created once elogind is restarted
and you log back in.

Mark

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Information forwarded to [email protected], [email protected]:
bug#428; Package cgroupfs-mount. Full text available.

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Date: Sat, 25 Apr 2020 04:56:02 +0900 (JST)
Message-Id: <[email protected]>
To: Devuan Bug Tracking System <[email protected]>
Subject: cgroupfs-mount: Cannot remove cgroupfs-mount
From: Ryutaroh Matsumoto <[email protected]>
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Package: cgroupfs-mount
Version: 1.4
Severity: normal

Dear Maintainer,

After installation of cgroupfs-mount, tring to remove it gives

Removing cgroupfs-mount (1.4) ...
Unmounting cgroupfs hierarchyumount: /sys/fs/cgroup/elogind: target is busy.
invoke-rc.d: initscript cgroupfs-mount, action "stop" failed.
dpkg: error processing package cgroupfs-mount (--remove):
 installed cgroupfs-mount package pre-removal script subprocess returned error exit status 32
Errors were encountered while processing:
 cgroupfs-mount
E: Sub-process /usr/bin/dpkg returned an error code (1)

Best regards, Ryutaroh Matsumoto


-- System Information:
Distributor ID:	Debian
Description:	Devuan GNU/Linux 3 (beowulf)
Release:	3
Codename:	beowulf
Architecture: x86_64

Kernel: Linux 4.19.0-8-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=C.UTF-8 (charmap=locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
UTF-8), LANGUAGE=en_US:en (charmap=locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
LSM: AppArmor: enabled

Versions of packages cgroupfs-mount depends on:
ii  lsb-base  10.2019051400

cgroupfs-mount recommends no packages.

cgroupfs-mount suggests no packages.

-- debconf information:
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
	LANGUAGE = "en_US:en",
	LC_ALL = (unset),
	LC_CTYPE = "C.UTF-8",
	LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory

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Acknowledgement sent to Ryutaroh Matsumoto <[email protected]>:
New bug report received and forwarded. Copy sent to [email protected]. Full text available.

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Report forwarded to [email protected], [email protected]:
bug#428; Package cgroupfs-mount. Full text available.

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