Checksum error in linux

Arch Linux

I’m a little concerned that some sha256 checksums on files from the linux package are wrong. I was wondering how to proceed?

The packages that have checksum errors are:

clang file firefox linux rkhunter vlc webkitgtk 

The actual files are (output from paccheck) (the /mnt/arch prefix is because I’m booting on a USB to debug why my system is failing, there is a —sysroot option on paccheck).

clang: '/mnt/arch/usr/lib/libclangARCMigrate.a' sha256sum mismatch (expected 99aa0293cd5ecae3af5e4089d1a05690ed8e02f2b129a4199c2c9175daa4af85) clang: '/mnt/arch/usr/lib/libclangCodeGen.a' sha256sum mismatch (expected a6f0a0bf3b44f5625ed689dee433a645e22b51dd72e12154bf31c01c32420922) file: '/mnt/arch/usr/share/file/misc/magic.mgc' sha256sum mismatch (expected 987b78059e41d7b04df8aeb7305f84c0f29e60fdbddc1524075b331d781c21f6) firefox: '/mnt/arch/usr/lib/firefox/libxul.so' sha256sum mismatch (expected 437ecba87a5365c8db4997bd2ed662907ffab5df8923447734b03d6162b25842) linux: '/mnt/arch/usr/lib/modules/4.13.4-1-ARCH/modules.alias' sha256sum mismatch (expected fd0cf16c5d232a327cba946bcc68667296a285d0404b33846a33272a1badb76a) linux: '/mnt/arch/usr/lib/modules/4.13.4-1-ARCH/modules.alias.bin' sha256sum mismatch (expected ce74b96bc3fecbf38fef201683c3a5eb195f88f57d3502b8a92af17002971bd7) linux: '/mnt/arch/usr/lib/modules/4.13.4-1-ARCH/modules.dep' sha256sum mismatch (expected 9367a6ce2368b7373a2f86050ec98d1b21e1d5911a8c5a8272ab22bf5d834dc5) linux: '/mnt/arch/usr/lib/modules/4.13.4-1-ARCH/modules.dep.bin' sha256sum mismatch (expected abd1676d0b36b27e69ac9ae8b45088c1f8da53312c80fc4aee85787b9c995bc3) linux: '/mnt/arch/usr/lib/modules/4.13.4-1-ARCH/modules.symbols' sha256sum mismatch (expected 40f788b152ee1819f2ed31f0887028347a73df149a21788b8abf98ae599f734c) linux: '/mnt/arch/usr/lib/modules/4.13.4-1-ARCH/modules.symbols.bin' sha256sum mismatch (expected dfc58cdf1f3acc8c9ade85d74310bc26256e42a0c10b86677f458bb277b73ba7) rkhunter: '/mnt/arch/var/lib/rkhunter/db/mirrors.dat' sha256sum mismatch (expected a3e6dde866413069c3b88c26d58502df896c51edd874648d78944f8bd8462a9b) rkhunter: '/mnt/arch/var/lib/rkhunter/db/i18n/tr' sha256sum mismatch (expected e8fc55b586cad44d9daff9a1b3939f7c69e988b4b6f304f36ce276ef28400951) rkhunter: '/mnt/arch/var/lib/rkhunter/db/i18n/tr.utf8' sha256sum mismatch (expected fbad1f593ab0089bf820178d2b30d8f89c267b96c6e53ab7d8403db12afb2ef5) vlc: '/mnt/arch/usr/lib/vlc/plugins/plugins.dat' sha256sum mismatch (expected c7506532c14b4262994ef1e4ee365503782f49759b764bf3ee6e84b3c03cd4a7) webkitgtk: '/mnt/arch/usr/lib/libjavascriptcoregtk-3.0.so.0.16.19' sha256sum mismatch (expected 24e063bcaef284374001478b6b71a32aea56b22fec19bb0581d22feccc131f37)

#2 2017-10-09 21:48:44

Re: checksum error on linux package (amongst others)

Welcome to the arch linux forums derekdreery.

linux: '/mnt/arch/usr/lib/modules/4.13.4-1-ARCH/modules.alias' sha256sum mismatch (expected fd0cf16c5d232a327cba946bcc68667296a285d0404b33846a33272a1badb76a) linux: '/mnt/arch/usr/lib/modules/4.13.4-1-ARCH/modules.alias.bin' sha256sum mismatch (expected ce74b96bc3fecbf38fef201683c3a5eb195f88f57d3502b8a92af17002971bd7) linux: '/mnt/arch/usr/lib/modules/4.13.4-1-ARCH/modules.dep' sha256sum mismatch (expected 9367a6ce2368b7373a2f86050ec98d1b21e1d5911a8c5a8272ab22bf5d834dc5) linux: '/mnt/arch/usr/lib/modules/4.13.4-1-ARCH/modules.dep.bin' sha256sum mismatch (expected abd1676d0b36b27e69ac9ae8b45088c1f8da53312c80fc4aee85787b9c995bc3) linux: '/mnt/arch/usr/lib/modules/4.13.4-1-ARCH/modules.symbols' sha256sum mismatch (expected 40f788b152ee1819f2ed31f0887028347a73df149a21788b8abf98ae599f734c) linux: '/mnt/arch/usr/lib/modules/4.13.4-1-ARCH/modules.symbols.bin' sha256sum mismatch (expected dfc58cdf1f3acc8c9ade85d74310bc26256e42a0c10b86677f458bb277b73ba7)

expected to mismatch as the install script calls depmod %KERNVER% which regenerates all the above.

vlc: '/mnt/arch/usr/lib/vlc/plugins/plugins.dat' sha256sum mismatch (expected c7506532c14b4262994ef1e4ee365503782f49759b764bf3ee6e84b3c03cd4a7)

expected to mismatch as update-vlc-plugin-cache.hook calls /usr/lib/vlc/vlc-cache-gen -f /usr/lib/vlc/plugins which regenerates plugins.dat.
Also please in future post the actual command used along with with its output.
Edit:
The file and firefox mismatches seem wrong to me and webkitgtk is no longer in the repositories.

Last edited by loqs (2017-10-09 22:08:43)

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LVM VG Metadata Corruption with ‘Checksum error’

“Checksum errors” are reported when running LVM commands on CentOS/RHEL server.

# vgs /dev/mapper/cx0009_lun45: Checksum error /dev/mapper/cx0009_lun48: Checksum error VG #PV #LV #SN Attr VSize VFree vg00 1 7 0 wz--n- 279.12G 159.12G vgcommrmandb 1 6 0 wz--n- 20.00G 44.00M vgcotsoracle 1 1 0 wz--n- 20.00G 4.00M vgcotsorapit 1 1 0 wz--n- 50.00G 4.00M .

# lvs /dev/mapper/cx0009_lun45: Checksum error /dev/mapper/cx0009_lun48: Checksum error LV VG Attr LSize Origin Snap% Move Log Copy% Convert crashvol vg00 -wi-ao 64.00G homevol vg00 -wi-ao 4.00G oemagentvol vg00 -wi-ao 10.00G rootvol vg00 -wi-ao 10.00G swapvol vg00 -wi-ao 16.00G tmpvol vg00 -wi-ao 8.00G .

# pvs /dev/mapper/cx0009_lun45: Checksum error /dev/mapper/cx0009_lun48: Checksum error PV VG Fmt Attr PSize PFree /dev/cciss/c0d0p2 vg00 lvm2 a-- 279.12G 159.12G /dev/mapper/cx0008_lun37 vgeflxwmq lvm2 a-- 5.00G 1.00G /dev/mapper/cx0009_lun30 vgeflxjvastb lvm2 a-- 40.00G 8.04G /dev/mapper/cx0009_lun31 vgeflxhdb1arch lvm2 a-- 60.00G 20.00M

Solution

A checksum is stored in the LVM2 metadata so that the presence of corruption can be detected before data can be actually damaged. This issue will generally occur when that checksum does not match a checksum calculated after having the metadata processed.

There may be many different causes of the checksum error, some of those include the following:

1. If 2 hosts are independently attempting to update the LVM2 metadata at the same time (ie. like a cluster situation) and clustered LVM (clvm) is not in use.
2. I/O errors that occur while the metadata is being updated (LVM2 updates are not journaled so interruptions in I/O updates can cause corruption).
3. There is some issue in SAN environment in case underlying paths are coming from SAN.

In order to resolve this error, follow the steps given below:

1. Backup all your data on the logical volumes.

2. Stop all services that have LVM resources in them (so the volumes can be unmounted and the volume groups deactivated). The service should not be running on any nodes in the cluster (if the error is reported on the cluster).

3. Restore the metadata using the command ‘vgcfgrestore‘. LVM meta data backup files are stored in /etc/lvm/backup and /etc/lvm/archive. The vgcfgrestore command by default uses the backup file in /etc/lvm/backup. Run vgcfgrestore to restore the LVM meta data. For example,

# vgcfgrestore vg_os /dev/mapper/cx0009_lun45: Checksum error /dev/mapper/cx0009_lun48: Checksum error Restored volume group vg_os

4. Activate the volume group.

# vgchange -ay vg_os 1 logical volume(s) in volume group "vg_os" now active

5. Run “pvscan” command to verify if you can see the “checksum errors” now.

6. Re-enable any services that were stopped prior to the vgcfgrestore.

Conclusion

Using vgcfgrestore can restore a backup of the LVM metadata to the LVM physical volumes from before the corruption occurred. You can use the default backup file in /etc/lvm/backup to restore the meta data from an old backup. If you have a backup file in other location you can also specify the backup file with the vgcfgrestore command as shown below.

# vgcfgrestore -f /path/to/backup/file vgname

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Directory Checksum Error Linux

We have collected for you the most relevant information on Directory Checksum Error Linux, as well as possible solutions to this problem. Take a look at the links provided and find the solution that works. Other people have encountered Directory Checksum Error Linux before you, so use the ready-made solutions.

directory checksum error — The UNIX and Linux Forums

https://www.unix.com/unix-for-dummies-questions-and-answers/67227-directory-checksum-error.html

Hi, I have a tar file with naed ass bcs.tar.gz downlaoded to my work station and It contains all the .c files and .o which i needed. when i am trying to unzip this one i am facing directory checksum e The UNIX and Linux Forums

How to Fix Checksum Error Using fsck Command in Linux .

https://www.geeksforgeeks.org/how-to-fix-checksum-error-using-fsck-command-in-linux/

Oct 01, 2019 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.

Solved: Tar -xvf giving directory checksum errors .

https://community.hpe.com/t5/System-Administration/Tar-xvf-giving-directory-checksum-errors/td-p/2655550

Hi Joe, Normally you’d use: uncompress jre.tar (or jre.tar.Z) tar xvf jre.tar If space is a concern you can use inline de-compression piped to tar:

tar: directory checksum error — LinuxQuestions.org

https://www.linuxquestions.org/questions/solaris-opensolaris-20/tar-directory-checksum-error-267419/

Dec 18, 2004 · This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration.

How to Verify Checksum in Linux [MD5, SHA256 & More]

https://itsfoss.com/checksum-tools-guide-linux/

Apr 10, 2020 · A checksum is a small-sized datum from a block of digital data for the purpose of detecting errors which may have been introduced during its transmission or storage. So a checksum is a long string of data containing various letters and numbers.

Directory CheckSum Error — Hewlett Packard Enterprise .

https://community.hpe.com/t5/System-Administration/Directory-CheckSum-Error/td-p/4111681

1. The tar tech manual on tar helps; I will try to look at it later today. 2. It was not clear to me that gnu is sympatico with hp-ux. I am delighted that gnu has been blessed by HP.

tar: directory checksum error — Ozzu

https://www.ozzu.com/unix-linux-forum/tar-directory-checksum-error-t39595.html

If you are using Sun Solaris, you most certainly ARE using Unix. It could be two different versions of tar, (native and/or GNU). Check which one you are running, and try using GNU tar to extract, or vice versa.

calculate checksum for a folder on windows and verify on linux

https://stackoverflow.com/questions/5395060/calculate-checksum-for-a-folder-on-windows-and-verify-on-linux

Calculate one checksum (SHA1 preferred) from an entire folder. This has to be done on Windows. Move this folder from a Windows to a Linux box. Verify the entire folder against the hash value on the Linux …

Checksum — File Integrity Check on Linux Command Line .

https://www.putorius.net/linux-checksum-file-integrity-check.html

Jul 17, 2019 · Checksum — File Integrity Check on Linux Command Line A checksum is a string of characters and numbers generated by running a cryptographic hash function against a file. You can use this output, or checksum, to verify that a file is genuine, …

Directory Checksum Error Linux Fixes & Solutions

We are confident that the above descriptions of Directory Checksum Error Linux and how to fix it will be useful to you. If you have another solution to Directory Checksum Error Linux or some notes on the existing ways to solve it, then please drop us an email.

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