Mount 2 system call failed невозможно выделить память
When I try to mount an lvm snapshot device, I get an error:
- What is the “File exists.” error trying to tell me?
- What can I do to mount the lvm snapshot device?
The mount command has “always worked before”, though last time I checked was in October 2018. A similar error has been encountered in this three-year-old question. However, the error message is slightly different and it’s 2019 now …
This is my output for lsblk .
I run Parabola Linux, my system is up-to-date. The logical volume /dev/matrix/core uses btrfs , which I suspect has something to do with the error. This is my output of uname -rvs .
3 Answers 3
(I'm not sure why you're using the -o loop mount option, as the LVM snapshot device should be just as good a disk device as its original is.)
That error result is not documented for the mount(2) system call, so a bit of source code reading is in order.
- drivers/block/loop.c , related to loop device management
- fs/btrfs/super.c , which would be used when mounting a btrfs filesystem.
In drivers/block/loop.c , the EEXIST error is generated if you're trying to allocate a particular loop device that is already in use (e.g. mount -o loop=/dev/loop3 . and /dev/loop3 is already occupied). But that should not be the issue here, unless something is creating a race condition with your mount command.
The fs/btrfs/super.c actually has a btrfs -specific function for translating error codes into error messages. It translates EEXIST into Object already exists .
You are trying to mount what looks like a clone of a btrfs filesystem that is already mounted, so it actually makes sense: historically, this used to confuse btrfs , but it appears some protection has been (sensibly) added at some point.
Since this seems to be a LVM-level snapshot, as opposed to a snapshot made with btrfs 's built-in snapshot functionality, you must treat the snapshot like a cloned filesystem if you wish to mount it while its origin filesystem is mounted: only the LVM will "know" that it's a snapshot, not an actual 1:1 clone. So, you'll need to change the metadata UUID of the snapshot/clone filesystem if you need to mount it on the same system as the original.
Warning: I don't have much experience on btrfs , so the below might be wrong or incomplete.
Since your kernel is newer than 5.0, you may have the option of using btrfstune -m /dev/mapper/matrix-snap--of--core to make the change. Otherwise you whould have to use btrfstune -u /dev/mapper/matrix-snap--of--core which would be slower as it needs to update all the filesystem metadata, not just the metadata_uuid field in the filesystem superblock.
I had an external 2tb harddrive with NTFS installed. Because it had data in it I first shrank NTFS to 1 tb and made other half ext4. No problem so far.
After data transfer to ext4 from NTFS, I deleted NTFS and using gparted I tried to expand ext4 to the left. That's when the power failure happened. When I checked the disk with gparted, it showed an error saying unallocated space within the partition .
After that I can't mount partition.
mount(2) system call failed: Structure needs cleaning
Here are the things that I've tried so far:
- Tried to revert unallocated space with gparted.
- e2fsck countless times
- running e2fsck with -p option
- Using gparted to format disk
- using gparted to delete partition
- Using gnome-disks utility to format disk
- using gnome-disks to delete partition
- Dropping superblocks mke2fs related
- Formatting to NTFS and using the disk some time
After formatting disk with ext4 (both gparted and gnome-disks), mount gives an error. Checking the logs, full error is:
Give heed that gparted cleans after the old partition, though no luck.
So I figure to create new ext4 file system and run e2fsck
After continuously running e2fsck, it seems to be stuck in a loop.
Then outputs millions of lines. Either saying inode contains garbage then clearing it or checksum does not match.
Mostly the inode numbers are different and seldom 1% of them recurring in other e2fsck runs.
And finally aborts the process at some time. Mind that inode number in this message is different each time.
-p option didn't do any good either. Because I can't run e2fsck with -p option
I've given up on data but still I can't utilize the disk.
Formatting disk to NTFS and using it seems fine. I can write and read data no problem. Problem seems to be only with ext4
What can I do at this point? Data in the disk doesn't matter. I just want to be able to use the disk with ext4 and to be able to mount.
I understand this is the new repository, but there are issues I would like to read again. Namely the one about 'mount.nfs: system call failed' - because I am getting that exact error on another machine.
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marcharding commented Sep 29, 2016
Closing this due to no response
I also think this is probably fixed in one of the more current releases as this issue is more than a year old.
yannschepens commented Aug 5, 2015
The only ones I founded relative to are there :
Can't export whole drive/partition :
It's not possible to mount exported disk/partition.
Server runs normally, but mount returns:
// mount 192.168.2.1:/www /w
mount.nfs: mount system call failed
Steps to reproduce:
WinNFSd.exe w:\ /www
mount [ip]:/www /mnt/nfs
I'm using Windows 7 Home Edition.
magnetik commented Aug 11, 2015
Got the same with Virtualbox 5.0 and Windows 7
marcharding commented Aug 25, 2016
Do you still have problems with this? Otherwise i'll close this issue.
USB Drive: . Mount(2) system call failed: Structure needs cleaning.
I am using Lubuntu 17.10 and brand new to this. I learned what I have so far reading a few posts here. Now I am stuck.
I have a WD 2 TB hard drive (Disk /dev/sdb: 1.8 TiB noted below) connected via USB port. This drive was in a WD MyCloud EX4 that stopped working. I want to offload the files.
I am getting the error:
Error mounting /dev/sdb4 at /media/thomas/70d534fb-554f-4c93-aa91-227965570d0b: Command-line `mount -t "ext4" -o "uhelper=udisks2,nodev,nosuid" "/dev/sdb4" "/media/thomas/70d534fb-554f-4c93-aa91-227965570d0b"' exited with non-zero exit status 32: mount: /media/thomas/70d534fb-554f-4c93-aa91-227965570d0b: mount(2) system call failed: Structure needs cleaning.
I guess I need to clean the file structure. Below are the couple things I tried. Where do I go from here? Please let me know if any more information would be helpful.
Thank you in advance.
Side bar: How do I turn off the touchpad? Uggh! Dell Inspiron 15.
In a terminal window:
fsck from util-linux 2.30.1
fsck.ext2: Permission denied while trying to open /dev/sdb4
You must have r/w access to the filesystem or be root
thomas@thomas-Inspiron-5520:~$ sudo fdisk -l
[sudo] password for thomas:
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
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: dos
Disk identifier: 0xe03ce000
Device Boot Start End Sectors Size Id Type
/dev/sda1 63 80324 80262 39.2M de Dell Utility
/dev/sda2 * 81920 29044735 28962816 13.8G 7 HPFS/NTFS/exFAT
/dev/sda3 29044736 1788747569 1759702834 839.1G 7 HPFS/NTFS/exFAT
/dev/sda4 1788747774 1953523711 164775938 78.6G 5 Extended
/dev/sda5 1788747776 1953523711 164775936 78.6G 83 Linux
Disk /dev/sdb: 1.8 TiB, 2000398934016 bytes, 3907029168 sectors
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 identifier: C617062A-C923-4146-87CF-BB28DCE032E8
Device Start End Sectors Size Type
/dev/sdb1 2048 4196351 4194304 2G Linux swap
/dev/sdb2 6293504 3904931839 3898638336 1.8T Microsoft basic data
/dev/sdb3 3904931840 3907029134 2097295 1G Microsoft basic data
/dev/sdb4 4196352 6293503 2097152 1G Microsoft basic data
Partition table entries are not in disk order.
thomas@thomas-Inspiron-5520:~$
Ubuntu addict and loving it
I don't use 17.10 but the link below explains how to disable touchpad on 17.10.
You need to preface the fsck command with sudo. Using the fdisk command as you did just lists drive/partition information and won't change anything.
I'm not sure that fsck will 'clean the structure' but running it shouldn't damage anything. You might try it and see and if it doesn't improve, maybe post the results of the command.
Xubuntu from dawn to dusk and beyond
Join Date Jul 2005 Location I think I'm here! Maybe? Beans 24,420 --> Beans Hidden! Distro Xubuntu 20.04 Focal Fossa
Your disk sdb is formatted mainly with what appear to be Windows filesystems so there is no point using fsck on it; you really need to repair it, or clean exit from it using Windows and its own tools.
Do you have access to a Windows OS which you can use and run chkdsk on the problem partition?
First Cup of Ubuntu
Originally Posted by yancek
I don't use 17.10 but the link below explains how to disable touchpad on 17.10.
You need to preface the fsck command with sudo. Using the fdisk command as you did just lists drive/partition information and won't change anything.
I'm not sure that fsck will 'clean the structure' but running it shouldn't damage anything. You might try it and see and if it doesn't improve, maybe post the results of the command.
Yaneck, thank you for your help. Here's what I got.
Command: synclient TouchpadOff=1
If I shutdown or reboot, it resets to On.
Below is a copy and paste of what I tried. I am trying to access the files on disc sbd4. Do you know what command I would use to do that? And if the file structure needed to be fixed, how would I do that? Like fdisk in Windows?
thomas@thomas-Inspiron-5520:~$ sudo fsck -a /dev/sbd4
fsck from util-linux 2.30.1
fsck.ext2: No such file or directory while trying to open /dev/sbd4
Possibly non-existent device?
thomas@thomas-Inspiron-5520:~$ sudo fdisk -l
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
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: dos
Disk identifier: 0xe03ce000
Device Boot Start End Sectors Size Id Type
/dev/sda1 63 80324 80262 39.2M de Dell Utility
/dev/sda2 * 81920 29044735 28962816 13.8G 7 HPFS/NTFS/exFAT
/dev/sda3 29044736 1788747569 1759702834 839.1G 7 HPFS/NTFS/exFAT
/dev/sda4 1788747774 1953523711 164775938 78.6G 5 Extended
/dev/sda5 1788747776 1953523711 164775936 78.6G 83 Linux
Disk /dev/sdb: 1.8 TiB, 2000398934016 bytes, 3907029168 sectors
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 identifier: C617062A-C923-4146-87CF-BB28DCE032E8
Device Start End Sectors Size Type
/dev/sdb1 2048 4196351 4194304 2G Linux swap
/dev/sdb2 6293504 3904931839 3898638336 1.8T Microsoft basic data
/dev/sdb3 3904931840 3907029134 2097295 1G Microsoft basic data
/dev/sdb4 4196352 6293503 2097152 1G Microsoft basic data
Partition table entries are not in disk order.
thomas@thomas-Inspiron-5520:~$ ^C
thomas@thomas-Inspiron-5520:~$
alanzhucn commented Aug 28, 2019
Hi, @kevinquillen @marcharding @magnetik @yannschepens
I meet the same problem today. And following @yannschepens 's advice, I include the option 'vers=3,nolock,udp' then it works.
area/mount kind/bug Categorizes issue or PR as related to a bug. lifecycle/rotten Denotes an issue or PR that has aged beyond stale and will be auto-closed. os/windows priority/important-longterm Important over the long term, but may not be staffed and/or may need multiple releases to complete.
yannschepens commented Aug 26, 2015
Sometimes, you have just to halt the VM and kill winnfsd process.
Currently, I have not tried with virtualbox 5.0.
kevinquillen commented Aug 5, 2015
That would be it (mount call failed). Trying to uncover this mysterious error.
I had the dev downgrade to vbox 4.3.30 on Windows (I have not yet tried 5). Deleted the .vagrant folder in the directory, and vagrant up. The console seemed to ignore Virtualbox completely then, and was saying "verifying hyper v is enabled" as a provider. Have never seen that one before.
yannschepens commented Aug 5, 2015
The first one is resolved and for the second one, the response was :
The mount command should look like the following
sudo mount -o 'vers=3,nolock,udp' 172.22.0.115:/C/test /var/test
Comments
kevinquillen commented Aug 5, 2015
I get Access Denied, even when logged in.
Valgard commented Aug 9, 2019 •
The exact command to reproduce the issue:
minikube mount "C:\Path\to\mount\dir:/mount-dir" --uid 999 --9p-version=9p2000.L --alsologtostderr -v=8
The full output of the command that failed:
I0809 15:05:04.537573 13984 notify.go:124] Checking for updates.
- Mounting host path C:\Path\to\mount\dir into VM as /mount-dir .
- Mount type:
- User ID: 999
- Group ID: docker
- Version: 9p2000.L
- Message Size: 262144
- Permissions: 755 (-rwxr-xr-x)
- Options: map[]
[executing ==>] : C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -NoProfile -NonInteractive ( Hyper-V\Get-VM minikube ).state
[stderr =====>] :
I0809 15:05:06.241585 13984 mount.go:149] Will run: [ "x$(findmnt -T /mount-dir | grep /mount-dir)" != "x" ] && < sudo fuser -km /mount-dir; sudo umount /mount-dir; >|| echo
I0809 15:05:06.242231 13984 ssh_runner.go:137] Run with output: [ "x$(findmnt -T /mount-dir | grep /mount-dir)" != "x" ] && < sudo fuser -km /mount-dir; sudo umount /mount-dir; >|| echo
I0809 15:05:06.289091 13984 mount.go:62] Will run: sudo mkdir -m 755 -p /mount-dir && sudo mount -t 9p -o dfltgid=$(grep ^docker: /etc/group | cut -d: -f3),dfltuid=999,msize=262144,port=59653,version=9p2000.L 192.168.189.161 /c
heckout-fragment
I0809 15:05:06.290087 13984 ssh_runner.go:137] Run with output: sudo mkdir -m 755 -p /mount-dir && sudo mount -t 9p -o dfltgid=$(grep ^docker: /etc/group | cut -d: -f3),dfltuid=999,msize=262144,port=59653,version=9p2000.L 192.1
68.189.161 /mount-dir
I0809 15:07:14.610443 13984 utils.go:227] ! mount: /mount-dir: mount(2) system call failed: Connection timed out.
I0809 15:07:14.612443 13984 mount.go:64] mount err=Process exited with status 32, out=mount: /mount-dir: mount(2) system call failed: Connection timed out.
W0809 15:07:14.616451 13984 exit.go:99] mount failed: mount: /mount-dir: mount(2) system call failed: Connection timed out.
: Process exited with status 32
*
X mount failed: mount: /mount-dir: mount(2) system call failed: Connection timed out.
: Process exited with status 32
*- Sorry that minikube crashed. If this was unexpected, we would love to hear from you:
The output of the minikube logs command:
The operating system version:
Microsoft Windows 10 Pro 10.0.18362 Build 18362First Cup of Ubuntu
yannschepens commented Aug 5, 2015
@kevinquillen tell me if these information are ok for you
yannschepens commented Aug 5, 2015
GM-Alex commented Aug 5, 2015
Hey I set the issue tracker to private to prevent that some creates new issues there. We have to port them to github.
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