[Bug 1884366] Re: package libkrb5-3 1.16-2build1 failed to install/upgrade: unable to make backup link of './usr/lib/i386-linux-gnu/libkrb5.so.3.3' before installing new version: Input/output error

[Andreas Hasenack]

Your dmesg is full of errors like these:
[   19.583604] SQUASHFS error: zlib decompression failed, data probably corrupt
[   19.583608] SQUASHFS error: squashfs_read_data failed to read block 0x8116e5ed
[   19.583610] SQUASHFS error: Unable to read fragment cache entry [8116e5ed]

Are you running from a cdrom/flash drive?
 /cow             8250080 1226092   7023988  15% /

In any case, this is filesystem corruption, or bad disk/cdrom, and not a
bug in the krb5 package.

** Changed in: krb5 (Ubuntu)
       Status: New => Invalid

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Title:
  package libkrb5-3 1.16-2build1 failed to install/upgrade: unable to
  make backup link of './usr/lib/i386-linux-gnu/libkrb5.so.3.3' before
  installing new version: Input/output error

Status in krb5 package in Ubuntu:
  Invalid

Bug description:
  Unable to update or upgrade libkrb5-3:i386 at 18.04 i386

  $ sudo apt install libkrb5-3:i386
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  The following additional packages will be installed:
    libgssapi-krb5-2 libkrb5support0
  Suggested packages:
    krb5-doc krb5-user
  The following packages will be upgraded:
    libgssapi-krb5-2 libkrb5-3 libkrb5support0
  3 upgraded, 0 newly installed, 0 to remove and 723 not upgraded.
  Need to get 467 kB of archives.
  After this operation, 0 B of additional disk space will be used.
  Do you want to continue? [Y/n] 
  Get:1 http://security.ubuntu.com/ubuntu bionic-security/main i386 libkrb5support0 i386 1.16-2ubuntu0.1 [32.5 kB]
  Get:2 http://security.ubuntu.com/ubuntu bionic-security/main i386 libgssapi-krb5-2 i386 1.16-2ubuntu0.1 [132 kB]
  Get:3 http://security.ubuntu.com/ubuntu bionic-security/main i386 libkrb5-3 i386 1.16-2ubuntu0.1 [303 kB]
  Fetched 467 kB in 2s (300 kB/s)    
  (Reading database ... 250947 files and directories currently installed.)
  Preparing to unpack .../libkrb5support0_1.16-2ubuntu0.1_i386.deb ...
  Unpacking libkrb5support0:i386 (1.16-2ubuntu0.1) over (1.16-2build1) ...
  Preparing to unpack .../libgssapi-krb5-2_1.16-2ubuntu0.1_i386.deb ...
  Unpacking libgssapi-krb5-2:i386 (1.16-2ubuntu0.1) over (1.16-2build1) ...
  Preparing to unpack .../libkrb5-3_1.16-2ubuntu0.1_i386.deb ...
  Unpacking libkrb5-3:i386 (1.16-2ubuntu0.1) over (1.16-2build1) ...
  dpkg: error processing archive /var/cache/apt/archives/libkrb5-3_1.16-2ubuntu0.1_i386.deb (--unpack):
   unable to make backup link of './usr/lib/i386-linux-gnu/libkrb5.so.3.3' before installing new version: Input/output error
  Errors were encountered while processing:
   /var/cache/apt/archives/libkrb5-3_1.16-2ubuntu0.1_i386.deb
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: libkrb5-3 1.16-2build1
  ProcVersionSignature: Ubuntu 4.15.0-20.21-lowlatency 4.15.17
  Uname: Linux 4.15.0-20-lowlatency i686
  ApportVersion: 2.20.9-0ubuntu7
  AptOrdering:
   libkrb5support0:i386: Install
   libgssapi-krb5-2:i386: Install
   libkrb5-3:i386: Install
   NULL: ConfigurePending
  Architecture: i386
  CasperVersion: 1.394
  Date: Sat Jun 20 13:02:48 2020
  ErrorMessage: unable to make backup link of './usr/lib/i386-linux-gnu/libkrb5.so.3.3' before installing new version: Input/output error
  LiveMediaBuild: Ubuntu-Studio 18.04 LTS "Bionic Beaver" - Release i386 (20180426)
  Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3
  PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
  RelatedPackageVersions:
   dpkg 1.19.0.5ubuntu2
   apt  1.6.1
  SourcePackage: krb5
  Title: package libkrb5-3 1.16-2build1 failed to install/upgrade: unable to make backup link of './usr/lib/i386-linux-gnu/libkrb5.so.3.3' before installing new version: Input/output error
  UpgradeStatus: No upgrade log present (probably fresh install)

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