[Bug 1227520] Re: Timezone changes are not working due to ro /etc and bind mounts

[Steve Langasek]

Stéphane,

I've always been uncomfortable with using per-file bind mounts instead
of symlinks for this.  Mounts carry a small but real penalty in the
kernel; we don't want the kernel to be using memory tracking thousands
of mounts on the phone!

Why do you prefer bind mounts instead of symlinks here?  I can't see any
advantage to this, and while it wouldn't solve the /etc/localtime case,
it would help other uses where the handling tools know how to read
through symlinks.

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https://bugs.launchpad.net/bugs/1227520

Title:
  Timezone changes are not working due to ro /etc and bind mounts

Status in “systemd” package in Ubuntu:
  Incomplete
Status in “ubuntu-system-settings” package in Ubuntu:
  Invalid

Bug description:
  There is no way to set up a different timezone than automatic in the
  System Settings

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: ubuntu-system-settings 0.1+13.10.20130910.3-0ubuntu1
  Uname: Linux 3.4.0-3-mako armv7l
  ApportVersion: 2.12.2-0ubuntu1
  Architecture: armhf
  Date: Thu Sep 19 08:41:07 2013
  InstallationDate: Installed on 2013-09-18 (0 days ago)
  InstallationMedia: Ubuntu Saucy Salamander (development branch) - armhf (20130918)
  MarkForUpload: True
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
  SourcePackage: ubuntu-system-settings
  UpgradeStatus: No upgrade log present (probably fresh install)

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