MSYS2-packages: Update package database and core system packages: Cannot open package file

Hi there. I’m new to MSYS2 and would like to evaluate it to build some software on windows which needs to be built with gcc.

Unfortunately I get an error on a fresh MSYS2 installation when running pacman -Suy. Sorry, can’t tell if I did something stupid.

zub@space MSYS ~
$ pacman -Syu
:: Synchronizing package databases...
 mingw32 is up to date
 mingw64 is up to date
 msys is up to date
:: Starting core system upgrade...
warning: terminate other MSYS2 programs before proceeding
resolving dependencies...
looking for conflicting packages...

Packages (8) bash-4.4.023-2  filesystem-2020.02-2  libzstd-1.4.4-2  mintty-1~3.1.4-1  msys2-runtime-3.1.4-1  pacman-5.2.1-6  pacman-mirrors-20200329-1  zstd-1.4.4-2

Total Installed Size:  65.76 MiB
Net Upgrade Size:      -3.96 MiB

:: Proceed with installation? [Y/n] Y
(8/8) checking keys in keyring                                                                                [#################################################################] 100%
(8/8) checking package integrity                                                                              [#################################################################] 100%
(8/8) loading package files                                                                                   [#################################################################] 100%
error: could not open file /var/cache/pacman/pkg/msys2-runtime-3.1.4-1-x86_64.pkg.tar.zst: Child process exited with status 127
error: failed to commit transaction (cannot open package file)
Errors occurred, no packages were upgraded.

zub@space MSYS ~
$ ps
      PID    PPID    PGID     WINPID   TTY         UID    STIME COMMAND
     2172    2171    2172      18456  pty0     1049767 17:09:46 /usr/bin/bash
     2171       1    2171      18704  ?        1049767 17:09:46 /usr/bin/mintty
     1729       1    1729      27052  ?        1049767 17:00:47 /usr/bin/gpg-agent
     2285    2172    2285      31244  pty0     1049767 17:10:25 /usr/bin/ps

About this issue

  • Original URL
  • State: closed
  • Created 4 years ago
  • Reactions: 2
  • Comments: 42 (15 by maintainers)

Commits related to this issue

Most upvoted comments

You can fix this issue by upgrading pacman first:

pacman -Sy pacman
pacman -Su
+4
mati865 on May 18, 2020

What about scripted installations – will MSYS2 processes be auto-closed with --noconfirm?

+3
emptyVoid on May 21, 2020

Still not solved…

+2
gwilku on Jul 3, 2020

I guess you are planning to filter out the terminal’s process, otherwise it would be a bit confusing for the user if gets suddenly closed.

I was thinking about something like

:: To complete the update all MSYS2 processes including this terminal need to be closed. Confirm to proceed [Y/n]
+2
lazka on May 21, 2020

No it’s definitely possible, this is what I do for appveyor

Here’s another alternate way to clean up all the zombie processes

taskkill /f /fi "MODULES eq msys-2.0.dll"
+2
jtanx on May 21, 2020

core packges are .xz again now and pacman will autokill all msys packages on a runtime update.

I’ll release a new installer later today which includes the new pacman version.

+1
lazka on May 22, 2020

What about scripted installations – will MSYS2 processes be auto-closed with --noconfirm?

sure. I still need to figure out how to make those cases not report a non-error exit status. Maybe skip pacman itself and the parent process if it is a bash and we are noconfirm.

edit: SIGTERM and finally taskkill seems to do the trick edit2: somehow not needed if I skip the calling process, shrug

+1
lazka on May 22, 2020

I wouldn’t recommend killing GnuPG daemons with taskkill since it does not discriminate by image (executable/library) path and will mess with unrelated MSYS2 installations (e.g. https://github.com/microsoft/vcpkg/issues/9427).

+1
emptyVoid on May 21, 2020

Here’s another alternate way to clean up all the zombie processes

taskkill /f /fi "MODULES eq msys-2.0.dll"

This seems like a good solution to me. What about we run this at the end of every core update? (with confirmation in the tty case)

+1
lazka on May 21, 2020

Or you can kill them “natively”:

/usr/bin/gpgconf --homedir /etc/pacman.d/gnupg --kill all
+1
emptyVoid on May 21, 2020

@ZuBsPaCe it should be printed in the terminal that you should close all remaining MSYS2 processes (or simply reboot) after the update before opening the shell again.

+1
mati865 on May 18, 2020

This issue is also affecting AppVeyor builds

+1
loganmc10 on May 18, 2020
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