Still broken on 12.04.5 recently updated:
$ apt-cache policy ureadahead
ureadahead:
Installed: 0.100.0-12
Candidate: 0.100.0-12
Version table:
*** 0.100.0-12 0
500 http://gb.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
100 /var/lib/dpkg/status
$ uname -a
Linux pscpc 3.13.0-34-generic #60~precise1-Ubuntu SMP Wed Aug 13 15:55:33 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux
Also finding nothing in /var/lib/ureadahead suggesting it never worked
on my system (installed as 12.04.4 I think)
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https://bugs.launchpad.net/bugs/1237042
Title:
ureadahead source needs "tracing_enabled" changed to "tracing_on" for
12.04.3
Status in “ureadahead” package in Ubuntu:
Confirmed
Bug description:
On a fresh install of Ubuntu 12.04.3 (64-bit), ureadahead was always
exiting with status code 5.
When manually run as: sudo /sbin/ureadahead --force-trace --debug
The output is:
Counted 4 CPUs
trace: Missing uselib tracing: No such file or directory
ureadahead: Error while tracing: No such file or directory
The uselib tracing notice is not important. The "error while tracing" notice
lead me to compare ureadahead sources between 12.04.3 and 13.04. Note that
ureadahead in 13.04 works. I noticed this difference on lines 195 and 232:
if (set_value (dfd, "tracing_enabled",
vs:
if (set_value (dfd, "tracing_on",
This change is mentioned in the changelog as:
ureadahead (0.100.0-13) raring; urgency=low
* src/trace.c: tracing_enabled is deprecated and gone, switch to tracing_on
(LP: #1085766).
-- Andy Whitcroft <a...@ubuntu.com> Fri, 11 Jan 2013 12:05:17 +0000
I suspect that this issue occurs in 12.04.3 because it is now using
the newer raring kernel 3.8.0-31. Previous flavors of 12.04 such as
12.04.2 do not seem to exhibit this ureadahead issue, probably because
the kernel is older 3.5.xx.
As a proof-of-concept test, I hex edited the 12.04.3 /sbin/ureadahead
to change "tracing_enabled" to "tracing_on". Upon reboot, now
ureadahead works, generates the /var/lib/ureadahead/pack file, and it
does not report status code 5.
Another workaround is to use the ureadahead binary from 13.04, but the
updated /lib/x86_64-linux-gnu/libext2fs.so.2.4 is also required from
13.04.
$ lsb_release -rd
Description: Ubuntu 12.04.3 LTS
Release: 12.04
$ apt-cache policy ureadahead
ureadahead:
Installed: 0.100.0-12
Candidate: 0.100.0-12
Version table:
*** 0.100.0-12 0
500 http://mirror.peer1.net/ubuntu/ precise/main amd64 Packages
100 /var/lib/dpkg/status
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