Read-only permission on a zip file

[samuelmoneill]

Hi,

I have mounted an external hard disk onto my Ubuntu 9.10 system. the hard disk has three partitions; an ntfs, fat32, and a HFS+ Mac OS X (0xaf).

I have a folder on the HFS partition called 'folder1' and want to copy it and all its contents over to the ntfs partition.

The problem I have is that foler1 contains a zip file called 'file.zip' . This file has read-only permissions for some reason. As a result when I run cp -r folder1 /media/ntfs/ it copies all the files in folder1 except for file.zip. the ls -al for file.zip is -rwx------ file.zip . I have tried sudo chmod go+r and it doesn't work.

Does anyone know how I can change the permissions on file.zip so that I can copy it over?

Thanks

[yancek]

This file has read-only permissions for some reason

the ls -al for file.zip is -rwx------ file.zip

The second line above shows root (or whoever the owner is) has read, write, execute so log in as root and do it.

I have tried sudo chmod go+r and it doesn't work.

The chmod command above would add read permission to group and others so that won't help!

[Rubberman]

You might need to actually be logged in as root to copy this file. The permissions are such that only the owner and root can read the file, which you need to be able to do in order to copy it. Also, sudo sometimes doesn't provide sufficient privileges, especially when accessing a "foreign" file system like this, hence the need to be logged, or su - to root in order to access it.

[lsatenstein]

To copy when the system does not allow you to do so, open a terminal and enter the following command

sudo su

in the terminal . You are now root, and you can do a cd to /media and from there, find your file and copy the read protected file to /tmp

switching to /tmp for your file, do a chown yourlogon:yourlogon filename.zip where filename.zip is the one you copied.

You could also do a chmod 777 filename.zip and exit.

[samuelmoneill]

Thank you all for your helpful input.

lsatenstein solved my problem