>>>>> "Russell" == Russell Senior <russ...@personaltelco.net> writes:
>>>>> "Russell" == Russell Senior <russ...@personaltelco.net> writes: >>>>> "Robert" == Robert Citek <robert.ci...@gmail.com> writes: Robert> Greetings all, For a file that is open, but deleted, is there Robert> a way to create a new filename for it given either the file Robert> descriptor from the process or the inode? Robert> Thus far, my Google searches suggest the answer is "no". But Robert> I find that hard to believe. Russell> Check out debugfs or maybe one of the other tools in Russell> e2fsprogs package. This is assuming the filesystem is an Russell> ext2/3/4. Russell> As long as the process doesn't let go of the inode, the Russell> storage won't be reclaimed. Russell> Read the debugfs manpage. Particularly, look for: Russell> ln filespec dest_file Create a link named dest_file Russell> which is a hard link to filespec. Note this does not adjust Russell> the inode reference counts. Russell> The 'filespec' would be the inode number, I think. Hmm. That note about not adjusting the reference counts might be problematic. Maybe you need to do this to create a temporary dest_file name, then from outside debugfs make a hardlink using the ln command, then use debugfs to remove the dest_file you created using the unlink pathname command. E.g., something like: [I am assuming the following, correct as necessary: the inode is from a filesystem from /dev/sda1 and $inode is the numeric value of the inode, and you run this all from the mount point of the filesystem (the tmpname will get created in the root directory of the mounted filesystem), and permname is a path on the same filesystem. You'll need to be root.] *** BE VERY CAREFUL! *** # cd /mountpoint_of_dev_sda1 # debugfs -w /dev/sda1 debugfs 1.42.9 (4-Feb-2014) debugfs: ln <$inode> tmpname debugfs: quit # ln tmpname permname # debugfs -w /dev/sda1 debugfs 1.42.9 (4-Feb-2014) debugfs: unlink tmpname debugfs: quit *** BE VERY CAREFUL! *** -- Russell Senior, President russ...@personaltelco.net _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
