error on "ok" for setting change

I change the user for a specific repository and it crashed

** Mercurial version (2.6.3).  TortoiseHg version (2.8)
** Command: --nofork
** CWD: /home/ozma
** Encoding: UTF-8
** Extensions loaded: 
** Python version: 2.7.5+ (default, Jun  2 2013, 13:26:34) [GCC 4.7.3]
** System: Linux debian 3.9-1-amd64 #1 SMP Debian 3.9.8-1 x86_64
** Qt-4.8.4 PyQt-4.10.2 QScintilla-2.7.2
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/tortoisehg/hgqt/settings.py", line 1174, in accept
    self.applyChanges()
  File "/usr/lib/python2.7/dist-packages/tortoisehg/hgqt/settings.py", line 1152, in applyChanges
    self.conftabs.widget(i).applyChanges()
  File "/usr/lib/python2.7/dist-packages/tortoisehg/hgqt/settings.py", line 1567, in applyChanges
    wconfig.writefile(self.ini, self.fn)
  File "/usr/lib/python2.7/dist-packages/tortoisehg/util/wconfig.py", line 246, in writefile
    f = util.atomictempfile(os.path.realpath(path), 'w')
  File "/usr/lib/python2.7/dist-packages/mercurial/util.py", line 850, in __init__
    createmode=createmode)
  File "/usr/lib/python2.7/dist-packages/mercurial/util.py", line 815, in mktempcopy
    copymode(name, temp, createmode)
  File "/usr/lib/python2.7/dist-packages/mercurial/posix.py", line 122, in copymode
    os.chmod(dst, st_mode)
OSError: [Errno 1] Operation not permitted: '/media/Data/workspace/workspacesALL/eclipseLinux/web_proj/.hg/.hgrc-W4FAdy'

Probably chmod fails because /media is vfat, but can't reproduce on my machine with the default mount option.

% uname -a
Linux gimlet 3.10-2-amd64 #1 SMP Debian 3.10.5-1 (2013-08-07) x86_64 GNU/Linux
% mount | grep vfat
/tmp/vfat.img on /mnt type vfat (rw,relatime,uid=1000,gid=1000,fmask=0022,dmask=0022,codepage=437,iocharset=utf8,shortname=mixed,errors=remount-ro)

Related: http://bz.selenic.com/show_bug.cgi?id=1172

the chmod failed but it shouldn't matter if all permissions are granted anyway. these are the permissions on my machine but it failes: "-rwxrwxrwx 1 root sudo 0 ...hgrc-W4FAdy".

I think it should give a warning

-rwxrwxrwx 1 root sudo 0 ...hgrc-W4FAdy

chmod fails because the file is not owned by you. What mechanism do you use to mount the flash drive?

settings: catch OSError to show warning dialog (closes #3313)

→ <<cset d8c03addb66d>>

it is mounted in /etc/fstab:

"/dev/sda3 /media/Data ntfs-3g rw,user,sgid,suid,exec,auto,utf8,gid=27 0 1 "

chmod is not necessary because all permissions are granted anyway.

It copies permission bits from the original file, which should succeed on a decent filesystem.

"/dev/sda3 /media/Data ntfs-3g rw,user,sgid,suid,exec,auto,utf8,gid=27 0 1 "

use uid= or user mapping, or switch to ext3.

Issue #3675 was marked as a duplicate of this issue.

Issue #1180 was marked as a duplicate of this issue.