A few weeks ago, I copied some directories from an old external hard drive to my iMac. I ended up with a few corrupt files due to the bad state of this ancient hard drive.
I managed to delete them, but some remain.
At the beginning, I thought it was only a question of file permissions or character encoding, but surprisingly, it's not. I've read every single posts in stackoverflow about similar issues on other unix systems.
Here are some screenshots, you'll understand easily the issue.
That is my OS and the bad files :
I can not delete anything, even after rewriting :
I can not chmod. Chmod shows me some ghost files I didn't know existed.
I can not chown either :
This is an encrypted APFS partition :
I can not run any Disk Utility repair because of this FS corruption (exit error code 8). This doesn't work either on my Mojave USB installer, same error code.
I can not decrypt the partition using FireVault, it stays stuck at 0% forever.
I never saw anything like this. What do you think we should do ?
Related
I have a Linux subsystem installed on my Windows machine. I've transferred a tar.gz file I want to access by finding the location of my subsystem and dragging the files over. But when I run the command:
tar -zxvf file_name.tar.gz
I get the error:
tar (child): vmd-1.9.4a51.bin.LINUXAMD64-CUDA102-OptiX650-OSPRay185.opengl.tar.gz: Cannot open: Permission denied
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error is not recoverable: exiting now
I assume permission being denied is to do with having transferred from Windows since I couldn't access directories I created through Windows either. So, is there something I need to change to gain access to these files?
(PS. I know there are other way of getting tar.gz files other than transferring from Windows, but I'll need to do this for other folders too, I only included the filetype in case it was relevant .)
EDIT: You shouldn't attempt to drag files over. See answer below.
For starters, this belongs on Super User since it doesn't deal directly with a programming question. But since you've already provide an answer here that may be slightly dangerous (and even in your question), I didn't want to leave this unanswered for other people to find inadvertently.
If you used the first method in that link, you are using a WSL1 instance, not WSL2. Only WSL1 made the filesystem available in that way. And it's a really, really bad idea:
There is one hard-and-fast rule when it comes to WSL on Windows:
DO NOT, under ANY circumstances, access, create, and/or modify Linux files inside of your %LOCALAPPDATA% folder using Windows apps, tools, scripts, consoles, etc.
Opening files using some Windows tools may read-lock the opened files and/or folders, preventing updates to file contents and/or metadata, essentially resulting in corrupted files/folders.
I'm guessing you probably went through the install process for WSL2, but you installed your distribution before setting wsl --set-default-version 2 or something like that.
As you can see in the Microsoft link above, there's now a safe method for transferring and editing files between Windows and WSL - the \\wsl$\ tmpfs mounts. Note that as a tmpfs mount stored in memory, it's really more for transferring files over. They will disappear when you reboot or shutdown WSL.
But even if you'd used the second method in that article (/mnt/c), you probably would have run into permissions issues. If you do, the solution should be to remount the C: drive with your uid/gid as I describe here.
There is an application on remote machine with Linux OS(Fedora), writing to the log file when certain events occur. Some time ago I changed format of the message being written to the log file. But recently it turned out that for some reason in some seldom cases log files with old format messages appear there. I know for sure that none part of my code can write such strings. Also there is no instance of the old application running. Does anyone have some ideas why it can happen? It's not possible to check which process writes those files because anything like auditctl is not installed there, and neither package manager or yum to get it or install. Application is written in C language.
you can use fuser command to find out all the processes that are using that file
`fuser file.log`
A little background: I have tried to use rsync to backup my wife's home directory to an external usb drive with the command
rsync -va /home/wife /run/media/wife
but kept getting error messages that mkstemp failed, and that rsync failed to set times, becuase of a read-only filesystem. Worse, it seems that rsync is unable to tell when files don't need syncing, and winds up copying a lot of stuff it doesn't need to, resulting in rediculously slow backup times.
So I tried using rsync -rtvO instead, based on this guy's advice. Okay, no more warnings, but the backups still seem too slow, and esp on big media files that already exists -- i.e. it's still copying stuff unnecessarily.
Is my analysis correct?
Is there a workaround?
Will the problem be fixed if I use an NTFS drive for here backups?
I could of course use a linux filesytem, but on rare occasions she would like to be able to take the drive to work and access it from the Windows machines there.
Try using --modify-window=1
In particular, when transferring to or from an MS Windows FAT
filesystem (which represents times with a 2-second resolution),
--modify-window=1 is useful (allowing times to differ by up to 1 second).
https://download.samba.org/pub/rsync/rsync.html
You could also try using --size-only
skip files that match in size
For rsync to FAT, this is what I use and it seems to work pretty well:
rsync -rtv --modify-window=1 source/ destination/
Source: https://serverfault.com/a/144475/58568
I was working on a .js file this morning on Notepad++, as usual, when the program just crashed. So I ended it, and re-opened it to see that all my code lines in my .js file, had disappeared, and now all I have left is the file with a size of 0kb because there's nothing left in it. How the hell is that even possible ? It erased everything I typed and saved the file as if there's nothing in it.
Do you know a way to get my code back ? Or did something like this ever happened to someone ? :/ I'm kinda worried because there was a lot of work there and I don't feel like re-typing it all...
When that option is enabled (and it is by default), Notepad++ keeps a backup copy of files you edit.
You can find the backups in the directory %APPDATA%\Notepad++\backup under the format filename#datetime.
I lost four unsaved files when my Notepad++ crashed, I searched through net and found another way to retrieve unsaved files other than backup folder
C:\Users\{username}\AppData\Roaming\Notepad++\backup
Hope it can help others who face the same problem as me. You can try to locate the dump files at
C:\Users\{username}\AppData\Local\Temp\N++RECOV
There will be .dump file inside, this is where I found my unsaved files. You can open the dump file with Notepad++, and see your unsaved works.
This has happened to me a few times lately and I've found a few solutions that make it possible to recover the lost code.
For Windows 7 and probably other modern Windows versions:
Find the file in File Explorer. The size will be 0KB. Right click on it and then choose Properties from the context menu.
Choose the Previous Versions tab. There's a good chance you will find a fairly recent version saved during the latest Restore point. If it's a bit old, it's still probably better than the current 0KB.
Click the Restore button.
My personal optimal solution:
Since this happened to me a few times and the Windows Previous Version was not always up to date, I looked for a different solution that could always give me the latest, most up-to-date version before the 0KB crash.
I discovered that I already had the solution installed on my computer. I have a SugarSync account that always backs up my work files to the cloud. The great part of the service is that SugarSync always keeps the last 5 versions in the cloud, so while the current version will be 0KB, you can download the next to last version and update your file on your computer.
If you have some other backup program, you can check if that service also keeps different versions that you can recover.
I've used notepad++ without any backup for years. One day this happen to me, too.
Here is what I've found as possible solutions:
http://buffernow.com/notepad-plus-crash-recover-your-lost-file/
(similar to Indrajit answer) - not much help. I didn't find my file there.
I have recovered my file one week ago as per answer of Hvck
Same problem here. Same answers:
https://superuser.com/questions/390204/how-to-restore-a-previous-version-of-file-in-notepad
One lesson learned: Use the backup!
use a plugin:
http://www.ilovefreesoftware.com/12/windows/two-plugins-auto-save-files-notepad-auto-save-autosave2.html
use notepad++ backup
http://allinworld99.blogspot.ca/2015/01/notepad-backup-files.html
** UPDATE **
It happened to me again!!! Another way to recover my file: View source on my browser and resave the file to other location. If you are lucky enough to have the file loaded in your browser :) It worked for me for a css file and for a js file.
Comparing the files: what N++ backed-up and the file from browser and files are matching. OMG!
GO to Taskbar click and run %APPDATA%, click to Notepad++ click to backup.
Your files saved by filename.extensionname#year-month-date_time
I know it's too late to answer this, but maybe my answer will help others.
I've encountered the same problem recently. Then it became regular. I did not find a solution to the problem itself, plus it may be caused by many different reasons, so probably no universal solution exists.
However, there is a way to save your files while notepad++ is not closed. Even if the backups folder is empty.
First of all, do not close notepad++. Open a taskmanager, find the notepad++ process and locate the Dump or Create dump file option. Click it. This will create a whole memory dump of the process. This dump will contain the documents you had opened. However you may need to find this data, plus it may be in a different encoding. I guess it is in UTF8 most of the time, but I am not completely sure.
The dump file can be examined with simple programs like notepad++ itself or with a hex editor.
Notepad doesn't auto-save its open file so unfortunately you have lost your work.
On next time you can use Notepad++ it retrieves file automatically
Refer this link may it help you Notepad++ recovery
I tried all the above solutions but nothing was working for me.
But luckily I have opened files one day earlier in eclipse as well. Eclipse and all other IDEs maintain a cache of all the files. You can get the copy of the file from that cache. To get copy from the eclipse.
Right Click on the file Name
Go to Replace With - Previous from the Local History
This answer applies to more recent versions of NotePad++:
Go to the folder of the file, see if there is a subfolder called nppBackup. Recently I've found sometimes the backup wasn't created in %AppData%/Notepad++/backup but it always seems to get created here, with the following file name format [original file name][date stamp]_[time stamp].bak
My test program works fine. I can create a client and a server and run them against each other. I can set my KRB5_CONFIG environment variable and use a local configuration for testing.
For some reason when I place the code in our production software it fails. Even if I strip our main() function to just calling gss_import_name() with a hard coded name I end up with the message "Cannot open configuration file".
If I run truss then I see a lot of Oracle going on. It tries to open lots of different Oracle trace files. It also tries to open
/krb5/krb.conf
instead of the file I specify.
It's as if Oracle is giving us the wrong gss, or maybe some other option in our huge and complex build system. I note -L/usr/lib/sparcv9 though this is after my -lgss now if that matters (too long since I worked in C on a regular basis!). The libgss.so.1 in that directory is larger than the one in /usr/lib - though putting that option into my test program's link command does not break it.
Any help?
Thanks
- Richard
This fixed what appeared to be a similar problem for us:
export KRB5_CONFIG=/etc/krb5.conf
It does appear likely that Oracle sets this env var incorrectly if it's not already set.
$ grep -r KRB5_CONFIG $ORACLE_HOME
Binary file /usr/lib/oracle/11.1.0.1/client64/lib/libclntsh.so matches
Binary file /usr/lib/oracle/11.1.0.1/client64/lib/libclntsh.so.11.1 matches
$ grep -r '/krb5/krb.conf' $ORACLE_HOME
Binary file /usr/lib/oracle/11.1.0.1/client64/lib/libclntsh.so matches
Binary file /usr/lib/oracle/11.1.0.1/client64/lib/libclntsh.so.11.1 matches
I found that the Oracle libraries contained an implementation of GSS. To make my code work I ensured I linked "-lgss" before linking any of the Oracle libraries.
I've not tested to see if this upsets Oracle in single sign-on, because we use Oracle with user name and password. That works fine.
I ran in to the very same issue with Oracle 11.2.0.4.0 on HP-UX 11.31 and wasted almost an entire day for that. Indeed, the crappy Oracle lib peforms a putenv with /opt/krb5/krb.conf and the tip from Richard Corfield makes the app even crash. The only workaround is to create a symbolic link. I have created a service request with Oracle for that issue.
Update (2014-06-02): I have received an update from Oracle. They confirmed the bug. It seems like there is a private GSS-API which is redefining symbols.
Bug 10184681 - ORACLE NEEDS TO USE VERSIONED SYMBOLS TO AVOID EXTERNAL SYMBOL CONFLICTS
This issue has been open since 2010-10. Terrible.