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How to use the fsck command in Linux? - LinuxForDevice

Since the command works directly with the sectors of the file system, it's important to take the necessary precautions here. e2fsck 's man page says: Note that in general it is not safe to run e2fsck on mounted filesystems. The only exception is if the -n option is specified, and -c, -l, or -L options are not specified Now use the e2fsck command to check fragmentation. # sudo e2fsck -fn /dev/sdb1. Now if we get the output as shown above , then health of the partition is ok . We don't need to do a Defragmentation. But if we get the output as shown below , we get to know that the health of the file system is in a critical phase. So here we need to perform a. The -C option is used with the tune2fs command to set the number of times the filesystem has been mounted. Example: sudo tune2fs -C 37 /dev/sda2. Setting Mount Count. If the mount count is set greater than the maximum mount count, then the filesystem will be checked by the e2fsck utility at the next reboot

When you no longer want to force fsck to run on each boot, run the same command but with -1 instead of 1: sudo tune2fs -c -1 /dev/sdXY You can also use this command to run fsck periodically. For example you could set fsck to run a filesystem check every 30 boots, by using -c 30 (e.g.: sudo tune2fs -c 30 /dev/sdXY) This command instructs the system to run e2fsck against /dev/sda10 after every 4 mounts. $ sudo tune2fs -c 4 /dev/sda10 tune2fs 1.42.13 (17-May-2015) Setting maximal mount count to 4 You can as well define the time between two filesystem checks with the -i option. The following command sets an interval of 2 days between filesystem checks I concur with @bodhi.zazen comment here. The best way to go about checking a filesystem is to boot from live media, choose Try Ubuntu and then manually fsck the partition in question. For example sudo fsck /dev/ZdXY where ZdXY is the partition in question. sudo fdisk -l will give you a listing of your drives and the partitions on them. This information should be sufficient for you to.

sudo e2fsck -cfpv /dev/sda1. Make sure to replace sda1 with the proper device identifier. The parameters c searches for bad blocks and add it to a list, f does a check on the file system. The p parameter repairs anything if possible and v is the verbose mode which gives you the terminal output of the command progress. You can also specify the bad_sectors.txt file. sudo umount /dev/sdd'2' sudo fsck.ext3 /dev/sdd'2' e2fsck 1.41.11 (14-Mar-2010) e2fsck: need terminal for interactive repairs Verifying if kernel command line needs to be installed... Kernel command line doesn't need to be installed Verifying if the boot command needs to be installed... Uboot <= setenv bootcmd 'mmc init ; fatload mmc 0 \${kernelloadaddr} kernel.uImage ; bootm \${kernelloadaddr. Alternatively, using command line tools, $ sudo umount /mnt/temp $ sudo e2fsck -f /dev/loop0p1 $ sudo resize2fs /dev/loop0p1 150M $ sudo mount /dev/loop0p1 /mnt/temp $ df /mnt/temp Filesystem 1K-blocks Used Available Use% Mounted on /dev/loop0p1 144716 1550 132414 2% /mnt/temp $ sudo umount /mnt/temp Now we get the target size for the partition, based on the current size of the file system. Then I used sudo e2fsck /dev/sdb2, it showed rootfs: **** WARNING: Filesystem still has errors ***** So the next command sudo mount /dev/sdb2 /mnt/whatever not work and showed that mount: /mnt/whatever: mount point does not exist. Is there any way to recover that programming file. If yes kindly provide me solution of that. I will be very thankful to one who solve my problem! raspbian pi-3 sd.

How to Check Bad Sectors or Bad Blocks on Hard Disk in Linux

How to repair and Defragment partitions in ubunt

  1. Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time
  2. On the command line it is: sudo e2fsck -f -y -v -C 0 /dev/sdX and. sudo resize2fs -p /dev/sdX Booting the rootfs from SDHC. During U-Boot press then type. run edsboot or during running linux (f.i. on the emmc disk): restart sdhc Booting the rootfs from external USB disk. Support for this has been removed. U-Boot currently does not support the USB, so can not load the kernel from a USB disk.
  3. If the e2fsck command ran without errors, now run sudo resize2fs -M -p /dev/xvdf1. Again, change the 1 to the partition number you wish to resize if you're not resizing the first one. The last line from the resize2fs command should tell you how many 4k blocks the filesystem now is. To calculate the number of 16MB blocks you need, use the following formula: blockcount * 4 / (16 * 1024). Round.
  4. If there's a newer version of e2fsck it should appear and be updated with the regular system update sudo apt-get update and then sudo apt-get dust-upgrade. Another way you may try is to try and install it using sudo apt-get install e2fsck. Captain_WD. George_Olive May 5, 2016, 1:36pm #4

$ sudo e2fsck -f /dev/sdc2 && sudo resize2fs /dev/sdc2 Performing operations non-interactively with sgdisk. As we already said, While gdisk is an interactive program, sgdisk is a command line utility which can be used to perform operations non-interactively. Let's see how to perform the same operations we performed in the previous examples. sudo lvdisplay. If you don't use LVM: All below commands work for unmounted partition, so you should boot from another source, for example, from iso (liveCD image). Change partition size: sudo fdisk /dev/sda3: remove old partition (d) create new one, bigger (n) write changes (w) Expand file system: sudo e2fsck -f /dev/sda3 sudo resize2fs /dev/sda I believe the moving command finished successfully and the errors were related to the resize command. sudo fdisk -l Disk /dev/nvme0n1: 476.96 GiB, 512110190592 bytes, 1000215216 sectors Disk model: Micron 2300 NVMe 512GB Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: gpt Disk.

If last command didn't return a line with metadata_csum, nothing to do. Otherwise, continue: sudo e2fsck -f /dev/sda9 sudo tune2fs -O -metadata_csum /dev/sda9 sudo e2fsck -f /dev/sda9 How to format a volume to be a compatible Ext4 . Example for /dev/sda9; sudo mkfs -t ext4 -O -metadata_csum /dev/sda9 btrfs . You might want btrfs to use per-directory (subvolume) quotas for other simfs/dir. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Command (m for help): d Partition number (1-5): 5 Command (m for help): d Partition number (1-5): 2 Command (m for help): n Command. First, execute the fdisk command with super user authority to display all your disk or flash memory information and their partition information: sudo fdisk -l. List Linux file system partitions. Then use the following command to check the bad path / block on your Linux hard disk: sudo badblocks -v /dev/sda10 > badsectors.txt Command (m for help): F Unpartitioned space /dev/sda: 7.2 GiB, 7726956544 bytes, pi@raspberrypi:~ $ sudo e2fsck -f /dev/sda2 e2fsck 1.43.4 (31-Jan-2017) Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/sda2: 1263/16384 files (0.0% non.

tune2fs command in Linux with examples - LinuxForDevice

How To Force fsck (Filesystem Consistency Check) After

  1. filesystem (and not swap or ufs or something else), then the superblock. is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193. or. e2fsck -b 32768. resize2fs 1.43.1 (08-Jun-2016) resize2fs: Bad magic number in super-block while trying to open /dev/sdc2
  2. We can easily expand any partition using the lvextend command. We can extend logical volumes only if the volume group has enough free space. To extend the logical volume LV1 from 5GB to 6GB, run. sudo lvextend -L+1G / dev / VG1 / LV1. The logical volume is 6 GB, but the file system on that volume is still only 5 GB. To make the file system use the entire 6 GB available, run. sudo resize2fs.
  3. Das Filesystem wird deshalb beim Booten geprüft und repariert, weil das in der /boot/cmdline.txt so angefordert wird. <man kernel-command-line> Da der Fehler nicht mehr automatisch sicher repariert werden kann, wird e2fsck mit dem Exit Code von 4 beendet. < man e2fsck > = < man fsck.ext4 > Den Fehler zu ignorieren halte ich für keine gute.
  4. I have run sudo touch /forcefsck but what else I have to do? That's stuff that applies more to wheezy; jessie may (or may not) be backward compatible with it, but you might as well do it the new way: Add the following to /boot/cmdline.txt: fsck.mode=force Make sure that file remains all one line. Parameters should be separated with spaces

4 Tools to Manage EXT2, EXT3 and EXT4 Health in Linu

I tried to run $ sudo fsck.ext3 -y -C0 /dev/sdc1 followed by re-running the fsck command above. There's over 780GiB free on / (where the scratch directory is mounted), plenty of room to let fsck avoid using RAM. Both times the fsck process gets to 70% completion and starts a long process of relocating data. That ends with: [...thousands of lines like the following...] Relocating group 7451. $ sudo e2fsck -b 8193 /dev/sdb1 e2fsck 1.42.9 (4-Feb-2014) e2fsck: Invalid argument while trying to open /dev/sdb1. The superblock could not be read or does not describe a valid ext2/ext3/ext4 filesystem. If the device is valid and it really contains an ext2/ext3/ext4 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an. sudo e2fsck -fc /dev/sdb1. Aus schlechten Erfahrungen mit externen USB-Laufwerken bin ich inzwischen ein gebranntes Kind. Nun läuft dieser Prozess und ich kriege laufend folgende Anzeige, bei der die Anzahl der Fehler sich in einem festen Zeitabstand immer um genau 14 Fehler erhöhen

sudo fsck -fc /dev/sdb1 fsck from util-linux 2.31.1 e2fsck 1.44.1 (24-Mar-2018) Checking for bad blocks (read-only test): done /dev/sdb1: Updating bad block inode. Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/sdb1: ***** FILE SYSTEM WAS. I execute the command. sudo e2fsck / dev/sdb1. result. e2fsck 1.42 (29-Nov-2011) / dev/sdb1: playback journal needs_recovery superblock flag is cleared, but the chronicle contains data. Make records of the chronicles <t>? so . e2fsck: unable to set superblock flags on / dev/sdb1 / dev/sdb1: ***** FILE SYSTEM MODIFIED ***** / dev/sdb1: ***** WARNING: Filesystem still has errors ***** I remove. Low priority command (more effective than nice) sudo ionice-p 666: io class and priority of process 666. Higher priority 0: sudo ionice-c3 -p 666: Sets process 666 as an idle io process. htop-d 5: Better top (scrollable, tree view, lsof/strace integration, ) iotop: What's doing I/O. sudo iftop: What's using the network. vmstat 3: monitor processes, memory, paging, block IO, traps, and. You can check if the partition is encrypted with LUKS with the following command: sudo cryptsetup isLuks /dev/sdaX ; echo $? replacing a with the disk letter and X with the partition number. 0 would be yes 1 would be no. 1 Like. Leloup 23 March 2019 08:35 #5. Bonjour Asta1986, Thank you for your message and your help. sudo cryptsetup isLuks /dev/sdaX ; echo $? delivered '$' So, I don't have. Be careful before using the write command. Command (m for help): Mit p können wir uns die aktuellen Partitionen anzeigen lassen: pi@raspberrypi ~ $ sudo e2fsck -f /dev/sda1 e2fsck 1.42.12 (29-Aug-2014) /dev/sda1: Journal wird wiederhergestellt Wird bereinigt verwaister Inode (uid=1000, gid=1000, mode=0100600, size=65536) Wird bereinigt verwaister Inode (uid=1000, gid=1000, mode=0100600.

sudo e2fsck -f /dev/vdb sudo resize2fs /dev/vdb Mount the disc again at the appropriate location. Usually this command will do that for you (assuming there's an entry for it in /etc/fstab): sudo mount -a Windows method. Increase the size of the disc through the Bytemark Panel when you typing a command while you modifying use sudo prefix. you can use the file explorer with superuser permissions by typing: Code: sudo nautilus. 5) umount system *)make sure the terminal is not in system directory or some sub dir of it . type: Code: sudo umount system. Code: e2fsck -yf system.img (fixes file system errors) 6) shrink the edit system.img into the minimum possible size by. Command (m for help): Disk /dev/sda: 931.5 GiB, 1000170586112 bytes, sudo e2fsck -f /dev/sda2 e2fsck 1.43.4 (31-Jan-2017) ext2fs_open2: Bad magic number in super-block e2fsck: Superblock invalid, trying backup blocks e2fsck: Bad magic number in super-block while trying to open /dev/sda2 The superblock could not be read or does not describe a valid ext2/ext3/ext4 filesystem. If the.

If last command didn't return a line with metadata_csum, nothing to do. Otherwise, continue: sudo e2fsck -f /dev/sda9 sudo tune2fs -O -metadata_csum /dev/sda9 sudo e2fsck -f /dev/sda9 How to format a volume to be a compatible Ext4 . Example for /dev/sda9; sudo mkfs -t ext4 -O -metadata_csum /dev/sda9 btrfs . You might want btrfs to use per-directory (subvolume) quotas for other simfs/dir. $ Command (m for help): w The partition table has been altered. Calling ioctl() to re-read partition table. Syncing disks. The partition is now ready. We can proceed to format the partition, $ sudo mkfs.ext4 /dev/sda1 Now the system will format the partition. You should see something like: Creating filesystem with 1965824 4 k blocks and 491520 inodes Filesystem UUID: 7 dc7d63f-9 fe0-4 d27-bf31. Take the Total PE value, and use it in the following command (1403543 in this case): $ sudo lvextend -l 1403543 /dev/vg_storage1/LogVol00. Example output: $ sudo lvextend -l 1403543 /dev/vg_storage1/LogVol00 Extending logical volume LogVol00 to 5.35 TiB Logical volume LogVol00 successfully resized $ Increase the size of the filesyste

How to shrink the EBS root volume. GitHub Gist: instantly share code, notes, and snippets I unmount the filesystem and run e2fsck: $ sudo e2fsck -p /dev/datavg/m movies contains a file system with errors, check forced. movies: Inode 118751237 has an invalid extent node (blk 475078659, lblk 0) movies: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY. (i.e., without -a or -p options) $ sudo e2fsck -y /dev/datavg/movies e2fsck 1.45.7 (28-Jan-2021) movies contains a file system with errors. This command copies the audio of film.mkv, resizes video to 960x540 size and outputs the result to resized_film.mkv. Resize video and encode it using mpeg4 codec $ ffmpeg -i some_film.mkv -s 960x540 -c:a copy -c:v mpeg4 resized_film.mkv Convert an audio file to mp3 format $ ffmpeg -formats | grep mp3 # check if mp3 format is availabl

5、sudo The sudo (super userdo) command allows authorized users to execute commands of super users or other users. Specified by the security policy in the sudoers list. Note: sudo allows users to borrow the privileges of superuser, but the Su command actually allows users to log in as superuser. So sudo is safer than su. It is not recommended to use sudo or Su for daily use, because it. ifenslve command examples. - About ifenslave : Attach and detach slave network devices to a bonding device. - It comes from iputils-20071127 package. Examples: - To show information of all the inerfaces. # ifenslave -a. # ifenslave --all-interfaces. - To change the active slave. # ifenslave -c bond0 eth1 Note: Use sudo [command] if encountering permission issue. df fdisk -l or sudo df sudo fdisk -l. 0.1 From the output, we may see something like /dev/sdb or /dev/vdb, find the correct disk we want to modify based on its disk model, disk size etc. 0.2 If the partition/file system is currently mounted, we need to unmount it first (Assume it is /dev/sdx) sudo umount /dev/sdx or.

e2fsck an fsck program that checks for and corrects inconsistencies. e2image save critical ext2/ext3/ext4 filesystem metadata to a file. e2label change the label on an ext2/ext3/ext4 filesystem. e2undo replay an undo log for an ext2/ext3/ext4 filesystem. e4defrag online defragmenter for ext4 filesystem After updated the system with the command. sudo apt-get update. Remember not to make any upgrade. This customized system doesn't like strong changes and after the first reboot it may seize up. Open the /boot/config.txt configuration file with a text editor (the default text editor in Debian is nano) sudo nano /boot/config.txt. and paste into it the following lines (the framebuffer values. sudo e2fsck -C0 -p -f -v / dev / hda2. Where: hda2 is the ext3 partition to be checked. With these options, e2fsck can solve quite a large number of file system problems, even some quite severe ones. This is a very effective command, and very beneficial to your file system. You could run this command regularly to keep your file system in good order. I use this one myself quite often. Normally. Tapas Mishra wrote: > On Tue, Sep 14, 2010 at 4:09 PM, Nils Kassube <[hidden email]> wrote: > > I would start from a livecd and use this command in a terminal: > Hmmm, > I do not have CDROM working is there no other way possible. Unless it is your / partition it could be done from the running system. Unmount each of the partitions and run e2fsck for that particular partition brandon@euca-128-84-11-149:~$ sudo fdisk /dev/vdc Welcome to fdisk (util-linux 2.25.2). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help): p Disk /dev/vdc: 30 GiB, 32212254720 bytes, 62914560 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical.

$ sudo aptitude install autoconf libtool pkg-config $ bash autogen.sh We are going to compile Bitcoin node in a separate directory bitcoin_build $ cd. $ mkdir bitcoin_build $ cd bitcoin_build Install Berkeley database version 4.8 If we install some dependencies more and try to compile: $ sudo aptitude install gawk $ sudo aptitude install g++ mak sudo fdisk -l. We'll be using the sudo command frequently - many of these tasks require administrative privileges. The fdisk command will output a list of storage devices attached to your system. Among them (hopefully last in the list to make it easy to find) will be the device you just plugged in: Disk /dev/sdb: 29.26 GiB, 31406948352 bytes, 61341696 sectors Disk model: Cruzer Blade Units.

[email protected]:~$ sudo fsck /dev/sda3 fsck from util-linux 2.34 e2fsck 1.45.5 (07-Jan-2020) /dev/sda3 is mounted. e2fsck: Cannot continue, aborting. 正常,健康的驱动器上的fsck如下所示: [email protected]:~$ sudo fsck /dev/sda2 fsck from util-linux 2.34 fsck.fat 4.1 (2017-01-24) /dev/sda2: 5 files, 1967/1972 cluster I want to resize my lvm /dev/glab/sabertooth from 50M to 70M. The vg have enough space for my to resize it. I've read that you can use lvmextend and resize2fs for ext4, but it involve additional steps. I was able to resize it using the single command below. LVM using lvmresize -r -L +20M /dev/glab/sabertooth E2fsck repair. If there are lots of errors, you may be stuck typing y for hours. and then take it from there depending on the output. [[email protected] ~]$ sudo e2fsck -b 32768 /dev/sdb2 e2fsck 1. # e2fsck -b 8193 /dev/hda?If that block also happens to be damaged, try the next one at byte number 16385, and so on until you find a good one. 2 e2fsck 1 The above command will increase the logical volume /dev/centos/var by 5GB, currently it is already 5GB so this will increase it to a total of 10GB. You could achieve the same with lvextend -L 10G /dev/centos/var which will increase the logical volume to 10GB as well, as this is what was specified with no +. Alternatively if you instead want to just use all free space in the volume group. 2018-02-27 - Theodore Y. Ts'o <tytso@mit.edu> e2fsprogs (1.44.0~rc1-1) experimental; urgency=low * New upstream release * Add support for the large_dir feature * Add support for the ea_data feature * Resize2fs will not complain about online resizes of bigalloc file systems * Debugfs's ls command will now print the high bits of the mode bits * Fix some corner cases with tune2fs and journal.

boot - How to use fsck in Ubuntu? - Ask Ubunt

Check command: sudo -u postgres psql -d webapp -c SELECT * FROM account ; returns: user_id | username | created_on -----+-----+----- 1 | foo | 2019-01-01 00:00:00 2 | bar | 2019-01-02 00:00:00 (2 rows) Switch off automatic volume mount in /etc/fstab ssh demo Comment lines in /etc/fstab that concern the volume you want to increase: sudo vim /etc/fstab #/dev/vdb1 /data ext4 defaults 0 0 #/data. Now run the fsck command: sudo fsck /dev/sdb Check the output for any errors. It is tagged as a first aid kit for your computer and rightly so. It caught some problems and reported them fixed. In fact, in some cases, e2fsck will perform an imprudent repair that transforms a file system with a relatively small incon-sistency into one that is completely unreadable. Pass 2: Checking.

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Scan and Repair Disk Bad Sectors in Ubuntu Linux, Fedor

sudo «command» simulate initial as another user sudo -u «username» -i Update sudo e2fsck -f -v -y /dev/sdb1 Archives ¶ Create archive tar -cf «targetfile».tar -C «folder which contains the folders/files to kompress» «names of folders/files to include» Extract archive tar -xf «sourcefile».tar -C «targetfolder» Create archive being verbose and using bz2 tar -cvjf. [[email protected] ~]$ sudo e2fsck -b 32768 /dev/sdb2 e2fsck 1. Again, check your package manager to find out what package provides this tool on your system if you don't have the command available. If the file system cannot be repaired, restore files from a backup with xfsrestore. Oct 18, 2015 · Hello there, We are going to corrupt the system and then repair, restore sanity. Check a partition. In this simple guide I will be demonstrating the steps used to grow a raid5 array from 3 HDD's to 4. Prerequisites. Mdadm running a raid5 array. Linux kernel > 2.6. Steps. Check the current raid array. Partition the new HDD. Add the new HDD to the raid array. Extend the file system onto the free space

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# Replace with your system partition path sudo e2fsck -f /dev/vda2 Resize filesystem. # Replace partition path and new size sudo resize2fs /dev/vda2 15G Open fdisk. # Replace with your hard disk path sudo fdisk /dev/vda Delete system partition. # Make sure which partition you want to delete, you can type p to see a partition list Command (m for help): d Partition number (1,2, default 2): 2. sudo badblocks -v /dev/disk > bad-blocks.dat. The fsck command is used to record the bad blocks. sudo fsck -t ext3 -l bad-blocks.dat /dev/disk. Another way to record the bad blocks is to use the e2fsck command with -c option. This prevents the data from being stored on these bad blocks. e2fsck -c /dev/drive. Tags Linux Unix $ yes | sudo e2fsck /dev/sdax e2fsck 1.42 (29-Nov-2011) e2fsck: need terminal for interactive repairs In each case, the partition /dev/sdax was not mounted. Is it not possible to use yes with e2fsck? Best Answer. If you are sceptical whether e2fsck -y works for you next time, coins might help. I used to use this trick when there were no yes or -y or equivalent options in MS-DOS. Related. In the command above, You will need to employ e2fsck (for ext2/ext3/ext4 file systems) or fsck command with the badsectors.txt file and the device file as in the command below. The -l option tells the command to add the block numbers listed in the file specified by filename (badsectors.txt) to the list of bad blocks.----- Specifically for ext2/ext3/ext4 file-systems----- $ sudo e2fsck -l. HI. please check these steps. after booting through live DVD i did sudo e2fsck -C0 -p -f -v /dev/sda1 then it asked for a manual fsck i did fsck /dev/sda

how do I shrink a partition, right after shrinking its

e2fsck is used to check a Linux second extended file system. *dd is a command on Unix systems whose primary purpose is to convert and copy a file. Note: Make sure you specify the exact number of bs and count values. (returned from the previous command). The execution of this command might take some time. 1. sudo dd if = / dev / xvdf of = / dev / xvdo1 bs = 4K count = 346784. Output: 1. 2. sudo e2fsck /dev/sdb5 e2fsck 1.42.5 (29-Jul-2012) ext2fs_open2: Bad magic number in super-block e2fsck: Superblock invalid, trying backup blocks... e2fsck: Bad magic number in super-block while trying to open /dev/sdb5 The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or. $ sudo unmount /dev/sdc1 $ sudo fsck -Vt vfat /dev/sdc1 In the command below, the switch:-t - specifies the filesystem type. -V - enables verbose mode. You can find detailed usage instructions in the fsck man page: $ man fsck Once you have performed filesystem inconsistency tests, you proceed to carry out physical condition assessments. 2. badblock. badblocks is a utility for scanning bad. Run the lsblk command and make note of the drives that are currently on the instance, for example: sudo fsck -V /dev/sdb1 fsck from util-linux 2.31.1 [/sbin/fsck.ext4 (1) -- /] fsck.ext4 /dev/sdb1 e2fsck 1.44.1 (24-Mar-2018) One or more block group descriptor checksums are invalid. Fix<y> yes Group descriptor 92 checksum is 0xe9a1, should be 0x1f53. FIXED. Pass 1: Checking inodes, blocks. When I typed the second command exactly as it appears in the website text, I got an error, same as Frank Arico reported (comment dated September 4, 2017 00:28). Checking more carefully, I realised ubuntu-vg-root had two - characters between ubuntu and vg. This can be seen in your screenshot, but the website text has converted it into a single em-dash character (I.

raspbian - How to recover files from pi SD card which can

Run fsck on your / and /home partitions. you'll get them by 'sudo blkid' command. Code: sudo fsck -y /dev/sdxX. Not sure if I've understood the directions. Here's the result of what I think that you mean. As you can see I've made a couple of attempts. Code: $ sudo blkid /dev/sda1: LABEL=OneDrive UUID=01D50E2E0C317530 TYPE=ntfs PARTLABEL=Basic data partition PARTUUID=0000458f-5c20-e766. sudo dd if=/dev/mmcblk0p2 of=/dev/sda1 bs=4M. Depending on how large your SD card is, this could take a long time. Next, we want to check the USB drive for errors with this command: sudo e2fsck /dev/sda1. If that turns out okay, we can resize your new root partition to fill your USB drive: sudo resize2fs /dev/sda

$ sudo e2fsck /dev/mmcblk0p2 e2fsck 1

sudo e2fsck -b 8193 /dev/sda e2fsck 1.41.9 (22-Aug-2009) e2fsck: Bad magic number in super-block while trying to open /dev/sda The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superbloc Command (m for help): w: The partition table has been altered. Calling ioctl() to re-read partition table. Syncing disks. [2017-06-23 22:57:49] 597 mitchese@cspi-sm :( $ sudo e2fsck -f /dev/mmcblk0p2 : e2fsck 1.43.4 (31-Jan-2017) Pass 1: Checking inodes, blocks, and sizes: Pass 2: Checking directory structure: Pass 3: Checking directory. Modify ext3 filesystem to include ext4 features: # tune2fs -O extents,uninit_bg,dir_index /dev/sdb1 tune2fs 1.42.5 (29-Jul-2012) Optimize/repair filesystem directories filesystem and force a filesystem check: # e2fsck -fD /dev/sdb1 e2fsck 1.42.5 (29-Jul-2012) Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3.

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- About lvreduce: To reduce the size of a logical volume - It comes from lvm2-2.02.72 package. - Configuration Files: - Path:. Remember the volume name and specify it in the following command: # sudo dumpe2fs /dev/vda2 | grep superblock. The command will show the list of backup superblocks: We will use the second backup superblock to replace the damaged one (you can use any superblock except Primary). Check the disk using the backup superblock: # sudo fsck -b 98304 /dev/vda2 -y. If you get this output: fsck from util. In this short guide I'll go over how I implemented full disk encryption using LUKS on my Raspberry Pi's root file system without needing a second Linux computer to run commands on. All you need is your Raspberry Pi running Raspbian and a USB flash drive. An overview of the process: Install softwa.. sudo cryptsetup -v isLuks /dev/sda3 Das zeigt Command successful bzw. Befehl erfolgreich., wenn -v oder --verbose als Option (sonst echo $?) Zeige Details zur Überprüfung an: generisch: cryptsetup luksDump <device> sudo cryptsetup luksDump /dev/sda3 3. Mapping erzeuge Note: You can refer man e2fsck if you want to know more about this command. # man e2fsck. Filed Under: CentOS/RHEL 6, CentOS/RHEL 7, Linux. Some more articles you might also be interested in CentOS / RHEL : How to Set up SFTP to Chroot Jail only for Specific Group; How to Change the default kernel (boot from old kernel) in CentOS/RHEL 8; How to configure kdump in Oracle Enterprise. Use the lvs command to check the logical volumes: cdelacruz@puck:/$ sudo lvs LV VG Attr LSize Origin Snap% Move Log Copy% home Ubuntu -wi-ao 1000.00M root Ubuntu -wi-ao 1000.00M scratch Ubuntu -wi-ao 216.97G swap_1 Ubuntu -wi-ao 5.91G usr Ubuntu -wi-ao 3.91G var Ubuntu -wi-ao 3.91G cdelacruz@puck:/$ Unmount the file system to be modified, in this case we are extending the /scratch lv (logical.