Jean-Hadrien Chabran

Troll-coding wizard

Notes on Migrating to Lion

I bought Lion yesterday ! People have already tested it against tools I use for work : Homebrew, RVM, MacVim so installing it on a friday night shouldn’t be too painful. Plus I got backups everywhere (local server + dropbox + github + tarsnap).

What went well

  • Downloading it, I got a stable and fast ADSL connection ( thanks Free.fr )
  • Installing it right after the download
  • Installing Xcode and Homebrew.

FAIL : Uninstalling MacFuse

  • Uninstalling MacFuse after the install. I forgot to remove it before intalling Lion, since it’s quite unmaintained, you can guess it’s going be boring to remove it correctly.
  • The uninstall script will fail with various errors.
  • Removing it manually, but wait that’s my fault ! I inspected the uninstall shell script and decided to do some quick shell script surgery.
    • Looks like I messed up there. Even if I manually unplugged the Kext before starting it, I got a weird freeze where no more application could be launched, they were bouncing endlessly.
    • Forced reboot.
    • Lion detects a broken os and decided to re-install itself.

FAIL : Admin privileges

  • Second install, Lion did not set any admin rights to my main user. This means :
    • I can’t touch anything in system preferences.
    • I can’t sudo.
  • Fixed it by booting in single user mode and adding myself manually to admin group :
    • Reboot and hold cmd+s
    • Remount your partition to have it writable
      • /sbin/fsck -fy
      • /sbin/mount -uw /
    • Add myself to admin group
      • dseeditgroup -o edit -a myusername -t user admin
    • Reboot

FAIL : SSH encoding issues

  • SSH’ing into any box messed up completely my encoding settings.
  • Comment SendEnv LANG LC_ * in /etc/ssh_config to get back to the pre-Lion behavior.
  • Lion does not set its locale to en_us.utf8 by default, appending it to your ~/.profile with export LC_ALL=en_US.UTF-8 corrects this issue if you want to adapt to the new default.

FAIL : Rvm and Ruby Entreprise edition ( Ree )

  • Segfault !
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ld: warning: directory not found for option '-L/opt/local/lib'
./ext/purelib.rb:2: [BUG] Segmentation fault
ruby 1.8.7 (2011-02-18 patchlevel 334) [i686-darwin11.0.0],
MBARI 0x6770, Ruby Enterprise Edition 2011.03

fulls logs

  • Fixed by using gcc instead of llvm
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rvm remove ree
export CC=/usr/bin/gcc-4.2
rvm install --force ree

StackOverflow thread

FAIL : Rvm and Postgresql with Homebrew

  • Fail to exec the Postgresql recipe :
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Error: undefined method `strip' for #<KegOnlyReason:0x10ac404b8>
  • I updated and relaunched brew install postgresql which ran smoothly thanks to this fix

FAIL : Fullscreen :

  • Can’t use cmd+` to alternate windows while in fullscreen, this isn’t vital but it’s quite annoying.

Finally

As I wasn’t expecting everything to work for the first time, those small issues did not upset me and weren’t hard to fix. I laughed hard at myself for the macfuse failed surgery where I can only blame myself.

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