Lost all file permissions, can _anything_ be done?

[FreakWent]

Hi!

cp -uav / /mnt/backup

/mnt/backup is an NTFS volume!

(warranty replacement here)

cp -uav /mnt/backup /

All copies great! System boots, xorg runs.

However, all the files are owned by root and the permissions lost. Is there an emerge command or another tool, or a script that can extract this infor from portage and apply it to an existing filesystem?

Thanks!

[sasho23]

Hi, do this:

[cwr]

I don't think so; from what I understand NTFS isn't storing the correct permissions,
so there's nothing to copy back. The advantage of tar files is that they can be used
to store permissions regardless of the underlying filesystem, but that's hindsight.

I've had a few problems with permissions on Gentoo, since I don't like the whole
system to be owned by root (which is the default). Some files (about 20 in all,
ISTR) need to have odd permissions or owners; some directory trees (portage,
man) need to be owned by specific groups. Simply changing all ownership to
bin breaks the system, and the only way I've found to keep things working is to
write a script which checks the original filesytem for non-standard permissions
and owners and records the results. Another script can then be run to update
a current filesystem.

Not helpful in your case; I think you're going to have to proceed by trial and
error. The first thing is probably to run a "find" command on /bin, /etc, /sbin,
and /usr to list all files which don't have permissions 644, and all directories
which don't have permissions 755. They are the ones you'll have to look out
for, and deal with individually. It's a pretty tedious process, which is why I've
scripted it.

Will

[FreakWent]

Thanks guys.

I was after a magic emerge incantation, or an additional tool, such as eix is for searching.

Ah well, the lesson ahs been learnt!