Public bug reported:
Calling "grub-mkconfig -o /boot/grub/grub.cfg" hangs. I came across
this when running "apt-get upgrade", during the kernel post install
step, where it hangs on this line in the log:
run-parts: executing /etc/kernel/postinst.d/zz-update-grub
3.19.0-41-generic /boot/vmlinuz-3.19.0-41-generic
I ran strace on calling grub-mkconfig. I'll attach the output, but
here's a summary of the output. To my untrained eye, it looks like
grub-mkconfig is calling pipe() and read() on a closed handle.
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
... snip ...
read(3, "/dev/mapper/ubuntu--vg-root\n", 128) = 28
read(3, "", 128) = 0
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17818, si_status=0,
si_utime=0, si_stime=0} ---
rt_sigreturn() = 0
close(3) = 0
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 17818
pipe([3, 4]) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
child_tidptr=0x7fe3556d7a10) = 17819
close(4) = 0
read(3,
^
|
NOTE: THE PROCESS HANGS THERE
NOTE: AFTER KILLING THE PROCESS, THE LINE CONTINUES THERE
|
v
read(3, 0x7ffddd6b62e0, 128) = ? ERESTARTSYS (To be restarted if
SA_RESTART is set)
--- SIGTERM {si_signo=SIGTERM, si_code=SI_USER, si_pid=16554, si_uid=0} ---
+++ killed by SIGTERM +++
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Here are the package versions on hand as determined by "apt-cache policy
grub grub-pc grub-efi"
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
grub:
Installed: (none)
Candidate: 0.97-29ubuntu66
Version table:
0.97-29ubuntu66 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
grub-pc:
Installed: 2.02~beta2-9ubuntu1.6
Candidate: 2.02~beta2-9ubuntu1.6
Version table:
*** 2.02~beta2-9ubuntu1.6 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64
Packages
500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64
Packages
100 /var/lib/dpkg/status
2.02~beta2-9 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
grub-efi:
Installed: (none)
Candidate: 2.02~beta2-9ubuntu1.6
Version table:
2.02~beta2-9ubuntu1.6 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64
Packages
500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64
Packages
2.02~beta2-9 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This is similar to what happened to me in bug #1510563 about a month
ago.
** Affects: grub (Ubuntu)
Importance: Undecided
Status: New
** Tags: grub-mkconfig hang
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https://bugs.launchpad.net/bugs/1527645
Title:
grub-mkconfig hangs (due to acting on closed handle?)
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