If possible capture the /var/log/syslog* before rebooting, it is deleted on boot, and may contain important information. Thank you so much for your help, Alex and unRAID community!!! * Also, just curious as to what is this thing that is CAUGHT? * How do I bring up the array with 2 failed disks if I encounter a situation where unRAID thinks parity needs to be rebuilt with 2 disks knocked offline and the contents are being emulated? and if so, how at this point (what's the proper command(s))? ![]() * Is it ok to shutdown the unRAID via command line. I still can't access the GUI so i need to shut down. Searching for PID 10566 came up empty so I ran your script again. When I ran your script I got the following results: I ran your script hoping to close any open files, etc. Because you're restoring the file, you might think that using the -a flag with cp is the right thing to do - but it's NOT a good thing to do.Subject: Notice - array turned goodĭescription: Array has 0 disks with read errors That's all you need to know to copy it out of /proc. You know that process 4158 has the file open and the file descriptor 4. The first column shows the command name associated with the process, the second column contains the process id, and the fourth column contains the file descriptor (the "r" indicates that it is a regular file). Take a look at what lsof has to say about it: If a file has been deleted but is still open by a process, lsof can display information about the file, including its file descriptor, process ID, and full path. How To Recover Deleted Files Using lsof?Īfter finding and removing open files that have been deleted, we will recover them now by lsof. Stat: cannot stat `myfile': No such file or directoryĪt this point, you should not authorize the process of continuing to use the file to exit, as doing so will result in the file being lost forever. Once you've obtained that information from lsof, copy the data from /proc. To determine where to go, obtain the process id and file descriptor of the process that has the file open by using lsof. Even if a file has been deleted from the filesystem, a copy of the data is still present: Every process on the system has its directory with its name, which contains many things, including an fd (file descriptor) subdirectory with links to all files the process has open. The/proc directory will come into play in the Linux process pseudo-filesystem. Only after they've finished, and all links have been removed is an inode and the data blocks it pointed to made available for writing.Įven if the file seems to disappear in the directory listing, the data is elsewhere if a process still has it open. When you rm a file, you remove the link to its inode but not the inode itself other processes may still use it. A Linux file is a link to an inode, consisting of all of the file's properties of the data blocks on the disk that comprise the file's content. How To Find and Remove Files That Are Open But Have Been Deleted With lsof? Lists process IDs that have accessed a specific file Shows all files used by network connectionsįilters open files based on connection type (TCP or UDP)įinds processes running on a specified portįinds processes running on a range of ports Shows open files used by all other process IDs Lists all files used by a particular processĭisplays all open files linked to a specific process ID ![]() Prints open files owned by all users except a specific one Prints open files owned by a particular user Displays open files in a specified file system
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