Update manager issues

[donaldt]

This is week 4 of trying to cure the problem with my Update Manager. I've had help, but now it seems my helpers have lost interest. Anyone care to tackle the problem of a broken update manager? My problem is the same as at the beginning of this thread.

Thanks if you can help!

donaldt

[donaldt]

I need to get back on the first page.

The issue is an inoperative update manager on Ubuntu 12.04, 32bit. Lot's of help early on and much background information earlier in this thread, but none of late.

Can anyone please help get the program working again?

donaldt

[Bashing-om]

donaldt;

I am still here... but to be honest I do not know how to fix your update manager //This has already progressed beyond my ability/knowledge.
With the bump perhaps the thread will be picked back up.

I do wish I had the ability to help further.

[matt_symes]

Hi

I have not been on the forums much over the last couple of weeks, that is why i have not responded.

From your strace output

clock_gettime(CLOCK_MONOTONIC, {55180, 44940362}) = 0
sendmsg(3, {msg_name(0)=NULL, msg_iov(2)=[{"l\1\0\1\"\0\0\0\2\0\0\0\177\0\0\0\1\1o\0\25\0\0\0/org/fre"..., 144}, {"\35\0\0\0org.freedesktop.UpdateManage"..., 34}], msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 178
clock_gettime(CLOCK_MONOTONIC, {55180, 45232997}) = 0
poll([{fd=3, events=POLLIN}], 1, 25000) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"l\2\1\1\t\0\0\0\3\0\0\0=\0\0\0\6\1s\0\4\0\0\0:1.4\0\0\0\0"..., 2048}], msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 89
write(4, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(3, 0xbfd50738, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily unavailable)
clock_gettime(CLOCK_MONOTONIC, {55180, 45725309}) = 0
sendmsg(3, {msg_name(0)=NULL, msg_iov(2)=[{"l\1\0\1\0\0\0\0\3\0\0\0\203\0\0\0\1\1o\0$\0\0\0/org/fre"..., 152}, {"", 0}], msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 152
clock_gettime(CLOCK_MONOTONIC, {55180, 46591272}) = 0
poll([{fd=3, events=POLLIN}], 1, 25000) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"l\2\1\1\204\2\0\0\5\0\0\0-\0\0\0\6\1s\0\4\0\0\0:1.4\0\0\0\0"..., 2048}], msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 708
write(4, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(3, 0xbfd50bf8, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily unavailable)
time(NULL)                              = 1363115580
clock_gettime(CLOCK_MONOTONIC, {55180, 47418612}) = 0
sendmsg(3, {msg_name(0)=NULL, msg_iov(2)=[{"l\1\0\1\0\0\0\0\4\0\0\0\205\0\0\0\1\1o\0$\0\0\0/org/fre"..., 152}, {"", 0}], msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 152
clock_gettime(CLOCK_MONOTONIC, {55180, 57013546}) = 0
poll([{fd=3, events=POLLIN}], 1, 25000) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"l\2\1\1\4\0\0\0\6\0\0\0-\0\0\0\6\1s\0\4\0\0\0:1.4\0\0\0\0"..., 2048}], msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 68
write(4, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(3, 0xbfd50558, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {0x8148260, [], 0}, 8) = 0
exit_group(0)                           = ?

It seems to be trying to get the bus org.freedesktop.UpdateManager from dbus. It is getting a response but i don't know if this response is valid or not.

Either way, if you check the output from clock_gettime(), this seems to be where it is hanging.

I don't know much about update manager as i never use it, but i am having a look at the code to try to see what is going on.

Did you ever try purging and reinstalling update-manager ?

Kind regards

[schragge]

Unfortunately, I don't use update-manager either. From the output of strace above it's not clear what responses update-manager gets from DBus as only the first 32 characters are preserved. So, maybe try strace once again, this time only on sendmsg and recvmsg calls, but with string size increased to say 256:

sudo strace -s256 -e trace=sendmsg,recvmsg -o ~/tmp.txt update-manager

[donaldt]

All,

Thanks for the help! I tried removing and re-installing update manager. I should have thought of that long ago, but unfortunately, that didn't change anything.

I will try some of the other suggestions.

donaldt

[Bashing-om]

all:

I too had considered (re)installing update manager, but do not know how deeply ingrained it is into the kernel. What procedure would one employ if apt-get were not available to obtain the updates for (re)installation ?-> LiveCD and chroot ?

Thus far this thread has taught me lots - a primary reason I frequent and support this forum.

I would appreciate some enlightenment to my experience.

[schragge]

What procedure would one employ if apt-get were not available to obtain the updates for (re)installation ?-> LiveCD and chroot ?

If only apt-get is unavailable, but the rest of the system works, I'd download deb packages with wget or through the web browser and install them with dpkg. Usually it's only a couple of packages that need to be (re-)installed. The hard part is to find out which they are.

[schragge]

Just for reference, I also want to post this link: DebuggingUpdateManager#Debugging_Procedures

[donaldt]

All,

Below the results of the "sudo strace...command.

After this, it launched update manager in it's still non functioning state

donald@donald-Aspire-3810T:~$ sudo strace -s256 -e trace=sendmsg,recvmsg -o ~/tmp.txt update-manager
[sudo] password for donald:
Home directory /home/donald not ours.
Home directory /home/donald not ours.
Home directory /home/donald not ours.
Home directory /home/donald not ours.
Home directory /home/donald not ours.
Home directory /home/donald not ours.
Home directory /home/donald not ours.
Home directory /home/donald not ours.
donald@donald-Aspire-3810T:~$