akhiezer wrote:
Date: Wed, 01 Oct 2014 12:08:54 +0100
From: [email protected] (akhiezer)
To: LFS Support List <[email protected]>
Subject: Re: [lfs-support] issue with 6.9.2. Configuring Glibc - localtime
From: Alexey Orishko <[email protected]>
While using LFS system I found one problem related to recommendations in ch.
6.9.2. Configuring Glibc (ch. number from devel book):
it is impossible for C-application (or bash script) to track down
timezone/location if original file is copied to /etc/localtime.
Do you mean that it's not easy for progs to know which original file
had been copied over to /etc/localtime ? If yes, then ref e.g.
'/etc/localtime-copied-from' symlink below.
I would recommend to change suggestion in the book from copying to
making a symbolic link, thus allowing to use readlink(3) to track down
an original file:
"Then create the /etc/localtime file by running:
ln -sf /usr/share/zoneinfo/<xxx> /etc/localtime"
Some folks have e.g.:
==
lrwxrwxrwx 1 root root 33 [...] /etc/localtime-copied-from ->
/usr/share/zoneinfo/Europe/London
-rw-r--r-- 7 root root 3661 [...] /usr/share/zoneinfo/Europe/London
-rw-r--r-- 1 root root 3661 [...] /etc/localtime
==
(OTTOMH, there is/was some reason for making /etc/localtime a file and
not a symlnk).
Following up on that 'ottomh', seems that sysd wants symlink - e.g. :
http://www.freedesktop.org/software/systemd/man/localtime.html
https://bugzilla.redhat.com/show_bug.cgi?id=885246
http://www.linuxfromscratch.org/lfs/view/7.6-systemd/chapter06/glibc.html
ISTR that it (commonly) used to be a symlink, years ago, and then (commonly)
changed to being a file - maybe re what partitions are available at boot,
&c. Some googling might help nail it down better - e.g.
https://bugzilla.redhat.com/show_bug.cgi?id=91228
Right. We do support a separate /usr. The bootscripts (actually via
udev in 55-lfs.rules) runs 'setclock start' which in turn runs hwclock.
hwclock may run before /usr is mounted.
The systemd (or any user really) book may want to do this differently.
-- Bruce
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