I have a multiboot system with three operating systems: A) Windows XP SP3 B) Windows 7 C) Ubuntu 9.10
On every OS I have created a user. These three users have to be mapped to one *identity* (me), so that the security features work flawlessly. If, for example, I restrict read access to one directory in any operating system to "me" only, this change shall be reflected in all operating systems. System A and B use Session Identifiers (SIDs), whereas system C uses a User ID (UID). I do not know if it is possible from Linux side to determine the usernames of all SIDs which exist on all WIndows system partitions. The Ubuntu installer knows the username of the user who installs the OS. This username can then be compared to all usernames existing on Windows partitions so that a mapping file can be created automatically. So Ubuntu "just works" (see Bug #1). We need a new User Interface for creating this mapping later on, so that the user can edit it easily. The first step would be full POSIX compliance of the ntfs-3g filesystem. This can be achieved by providing an update of ntfs-3g to 2009.11.14. For testing, a user mapping can then be created in a file: /etc/ntfs3g-usermapping: 1000::S-1-5-21-4120741282-3245112264-2965135236-1000 The User ID 1000 is created for the first user by the Ubuntu installer. The SID needs to be read out, I have given an example only. Windows regedit shows the SIDs in the registry key HKEY_USERS. Normally, after installation of Windows - if given exactly one username during installation - only one full SID exists which has a pattern like the one above. The options line in /etc/fstab needs to be expanded, I am not sure about how to do that. My suggestion: /dev/mapper/isw_bfacafefej_Volume07 /data ntfs defaults,nls=utf8,umask=007,gid=46,usermapping=/etc/ntfs3g-usermapping 0 0 /dev/mapper/... is a virtual device, because I use a RAID 0 system (Intel fakeraid). The option line which is important here begins with 'defaults'. Andre -- New timestamp when copying to NTFS partition https://bugs.launchpad.net/bugs/314860 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
