Why is the superblock last mount time in the future. After a bunch of investigation, i found that the problem is that when you mount your sd card on your linux computer, the system helpfully writes the date on which the card was last mounted to the card itself. Also, the date and time on the main screen of the os appears correct. The ancient superblocks are out of scope for this wiki and arent used by mdadm and md. Superblock set in the future, fixing system clock ask ubuntu. The ondisk superblock formats info can be found here. Jan 31, 2015 in short each file system has a superblock, which contains information about file system such as. Extended security maintenance is a paid option through ubuntu advantage to get extended support and security updates for select server packages. The entire file hierarchy including submounts is attached a second place using mountrbind olddir newdir or shortoption mountr olddir newdir note that the filesystem mount options will remain the same as those on the original mount point, and cannot be changed by passing the o option along with bind. If the device is valid and it really contains an ext2 filesystem and not swap or ufs or something else, then the superblock is corrupt, and you might try running e2fsck with an alternate superblock. During booting, the system complained that the superblock last mount time is in the future and asks me to fsck.
Jun 27, 2014 when rebooting the server and it shows this message. Using date on the command line shows the correct local time. Linux ext23 filesystem stores superblocks at different locations so it is possible to recover data from a corrupted partition. Superblock last mount time is in the future newbie. By default ubuntu will try to use the fbdev video driver, however for the beagleboard we can take advantage of a more software optimized driver still not using the sgx video hardware using the neon extensions of the cortexa8 core. A linux ext2ext3 file system driver for windows brought to you by. The superblock could not be read or does not describe a correct ext2 filesystem. So my question is what kind of user will get most benefit of rolling release distros. It then fixed itself, but the hardware clock was not updated. Release announcements are posted on the ubuntu announce mailing list.
However, you can force the mount to use specific superblock. This could be useful when the filesystem has been damaged. Instead you can force mount command to read a backup superblock in case the primary one is corrupted. Linux ext2ext3 superblock recovery kezhongs weblog. Solved superblock last mount time is in the future. I believe this question can be looked at in two different ways. Ubuntu contains a file system with errors, check forced.
Systems with broken system clocks, are well, broken. You can use any one of the following command to find out the superblock location. Superblock last mount time is in the future ubuntu forums. Applied patch sent upstream to ignore a future last mount, write or. The above shown mount command will use backup superblock located at block 98304 while mounting. When rebooting the server and it shows this message. This is pretty consistent so i would like to have a your oppinion on the matter to check if i have my bios clock and system time configured correctly. A shared mount provides ability to create mirrors of that mount such that mounts and umounts within any of the mirrors propagate to the other mirror.
According to what i have read, it looks like im in the right place to get an answer. I have used debian squeeze for months and encountered the problem for the first time. Flashing raspbiannetinst image results in superblock. The time will be different on boot if you use a separate usr partition because etc. In short each file system has a superblock, which contains information about file system such as. I think that if a big hardware producer dell, hp, lenovo are probably too influenced by ms, maybe some chinese brand should start selling a lot of machines with ubuntu preinstalled and the community helps canonical to make ubuntu easy and graphical, it can become the n1 desktop os. The usual behaviour is that the last option wins if. Its dangerours to re mount the same volume while its. In ubuntu, hwclock is about 5 sec behind what gnome displays in the top bar. The content of these old releases can be accessed at the old ubuntu releases directory. A slave mount receives propagation from its master, but any not viceversa. Ubuntu how to fix filesystem superblock error mar 7, 2010. Unfortunately, some buggy distributions do not correct this before running e2fsck.
After a bunch of investigation, i found that the problem is that when you mount your sd card on your linux computer, the system helpfully writes the date on which the card was last mounted to. I was looking for some way to determine the time stamp when the drives are mounted. Its the sort of default for modern versions of mdadm. Flashing raspbiannetinst image results in superblock last. I believe i can adjust by telling win not to access network clock set thing. I read the article surviving a linux filesystem failures. If it lost, you would be in trouble so linux maintains multiple redundant copies of the superblock in every file system. Sometimes, when i reboot my system, i have the error. Superblock last mount time is in the future when i rebooted after installing ntp, the time was wrong by hours. How can you recover a bad superblock from a corrupted ext3 partition to get back your data. The problem is when i try to restore the correct date i cannot boot. Ext2 file system driver for windows discussion ext2fsd. The usual behaviour is that the last option wins if there is more duplicated options. I have been trying to mount an ext2 hard drive in ubuntu server, but when i run sudo mount devsdb mediamynewdrive t ext2 i get wrong fs type, bad option, bad superblock on devsdb1, missing.
However, broken system clocks, particularly in embedded systems, do exist. This can probably be addedadopted to all pupmodes, and even extended to the partition. That was off the top of my head im not at a linux computer at the. I am getting a cant read superblock error and ubuntu wont. The other big thing on the desktop for ubuntu is the software centre, which is one of the things that really makes you stand out against other distributions. Future of linux operating systems on desktop computers. Chriss wiki bloglinuxsoftwareraidsuperblockformats. Open a commandline terminal select applications accessories terminal, and then type the following command alternatively you can boot from rescue or live linux cd and type the same. Superblock last write time is in the future during boot sequence. Most often the last mount time is 1 day and 1 hour in the future. Elementarys pantheon is awesome for newbies the future of desktop linux. The second question is whether or not it is going to gain much traction than it. Fixed move the file etcadjtime and set the hardware clock using the command below.
Puppy linux discussion forum view topic boot error. File system type size status information about other metadata structures in detail the superblock is a structure that represents a file syste. Solved superblock last write time is in the future fedora forum. If this option is set to a boolean value of true, we attempt to work around this situation by allowing the superblock last write time, last mount time, and last check time to be in the future by up to 24 hours. It sounds like your ubuntu install is changing the system clock and its getting skewed when. In software development ecosystem also there isnt any different between arch and others, in fact popular distro like ubuntu usually get more support. After i log in, after 3 seconds it goes to a black screen that says something about superblock last mount time is probably in the future and then it goes back to the log in screen.
The first being how desktop linux is going to look in the future. The newer and wellsupported version1 superblock format is moreexpansion friendly than the previous format. I am getting a cant read superblock error and ubuntu. Now when i boot back to ubuntu, my nvidia drivers arent loaded and i cant log in after putting in my password. Now, when i boot up ubuntu, a screen flashes the message superblock last mount time is in the future. Move the file etcadjtime and set the hardware clock using the command below. The e2fsck8 program has some hueristics that assume that the. Superblock last write time is in the future during boot.
The date and time on my bios screen appears correct. I couldnt really see that this give extra value for most. Below shown is an example mount command using a backup superblock to mount a file system. Debbugs is free software and licensed under the terms of the gnu public license version 2. How to determine nfs mount time hi there are numerous mounts on my local system from various other remote machines. Debian user forums view topic solved superblock last. And, yes, i know, it still doesnt resolve the e2fsckissue with mount time in the future for us east of greenwich. Running ubuntu server ie no gui but suspect this might be a general problem. E2fsck will attempt to use heuristics to determine if the time can not be trusted. Its dangerours to remount the same volume while its being taken over by another os.
So you have a drive thats gone bad, and you cannot mount it. But, if i decide to mount the card and manipulate it before moving it to the rpi, this happens every time. Utc time and superblock last mount time is in the future. Each file system has one superblock, which contains information about file system such as file system type, size, status and information about other metadata structures. Nov 04, 2010 so you have a drive thats gone bad, and you cannot mount it. Bad magic number in superblock while trying to open devsdbthe superblock could not be read or does not describe a valid ext2ext3ext4 filesystem.
Superblock last mount time is in the future server fault. You can see what format your current raid arrays are using by looking at procmdstat. The issue was my cmos battery was going baddead and i set my time in windowsxp64 to correct time, however when i booted into mandriva and i noticed it had a future date of december 19, 20 in verbose mode and it would hang and fail, and gave me the superblock last mount time is in the future, which was a future date. Yes, i know hwclock hctosys localtime is run in etcrc.
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