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--fix-broken or --reinstall dpkg exit also with 'no permission' message.

chmod -st

No changes.

--fix-broken or --reinstall dpkg exit also with 'not allowed' message.

chmod -st, chown root:root

No changes.

rm -f

No.

This file can't changed or deleted (remove/purge 4.19.1), but troubles apt-get to install applications. Can't --fix-broken or --reinstall dpkg.

sudo e2fsck -f /dev/sba2 does not report an error  sudo badblocks -vsn /dev/sda2 reports 0 bad blocks and rm, chmod, chown: same behaivior as above ..

This file can't changed or deleted (remove/purge 4.19.1), but troubles apt-get to install applications. 

--fix-broken or --reinstall dpkg exit also with 'no permission' message.

sudo e2fsck -f /dev/sba2 does not report an error 

sudo badblocks -vsn /dev/sda2 reports 0 bad blocks

and rm, chmod, chown: same behaivior as above ..

$ uname -a Linux olly-ryzen-pc1 4.20.10-042010-generic #201902150516 SMP Fri Feb 15 10:19:07 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

$ stat /var/lib/dpkg/info/linux-image-unsigned-4.19.1-041901-generic.md5sums Datei: /var/lib/dpkg/info/linux-image-unsigned-4.19.1-041901- generic.md5sums Größe: 0             Blöcke: 0          EA Block: 4096   Normale leere Datei <= empty file Gerät: 802h/2050d    Inode: 27918873    Verknüpfungen: 1 Zugriff: (5625/-rwS-w-r-t)  Uid: (477987903/ UNKNOWN)   Gid: (3699747887/ UNKNOWN) Zugriff    : 2381-05-02 11:29:39.163881368 +0100 Modifiziert: 2293-06-01 00:54:46.455862499 +0100 Geändert   : 2167-05-10 21:19:01.867729249 +0100 Geburt    : -

$ lsattr /var/lib/dpkg/info/linux-image-unsigned-4.19.1-041901-generic.md5sums lsattr: Keine Daten verfügbar Beim Lesen der Flags von /var/lib/ dpkg/info/linux-image-unsigned-4.19.1-041901-generic.md5sums

sudo e2fsck -f /dev/sba2 does not report an error sudo badblocks -vsn /dev/sda2 reports 0 bad blocks and rm, chmod, chown: same behaivior as above ..

Only to compare, here is a neighbor file: $ stat /var/lib/dpkg/info/linux-sound-base.md5sums Datei: /var/lib/dpkg/info/linux-sound-base.md5sums Größe: 545           Blöcke: 8          EA Block: 4096   Normale Datei Gerät: 802h/2050d    Inode: 27269131    Verknüpfungen: 1 Zugriff: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root) Zugriff    : 2019-02-03 16:56:08.943545720 +0100 Modifiziert: 2015-07-31 05:42:23.000000000 +0200 Geändert   : 2018-05-22 01:20:37.178864616 +0200 Geburt    : -

$ lsattr /var/lib/dpkg/info/linux-image-unsigned-4.19.1-041901-generic.list --------------e--- /var/lib/dpkg/info/linux-image-unsigned-4.19.1-041901-generic.list

$ uname -a
Linux olly-ryzen-pc1 4.20.10-042010-generic #201902150516 SMP Fri 
Feb 15 10:19:07 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

$ stat /var/lib/dpkg/info/linux-image-unsigned-4.19.1-041901-generic.md5sums 
  Datei: /var/lib/dpkg/info/linux-image-unsigned-4.19.1-041901-generic.md5sums 
  Größe: 0             Blöcke: 0          EA Block: 4096   Normale 
leere Datei <= empty file
Gerät: 802h/2050d    Inode: 27918873    Verknüpfungen: 1 
Zugriff: (5625/-rwS-w-r-t)  Uid: (477987903/ UNKNOWN)   Gid: (3699747887/ 
UNKNOWN) 
Zugriff    : 2381-05-02 11:29:39.163881368 +0100 
Modifiziert: 2293-06-01 00:54:46.455862499 +0100 
Geändert   : 2167-05-10 21:19:01.867729249 +0100 
 Geburt    : - 

$ lsattr /var/lib/dpkg/info/linux-image-unsigned-4.19.1-041901-generic.md5sums
lsattr: Keine Daten verfügbar Beim Lesen der Flags von /var/lib/dpkg/info/linux-image-unsigned-4.19.1-041901-generic.md5sums

sudo e2fsck -f /dev/sba2 does not report an error sudo badblocks -vsn /dev/sda2 reports 0 bad blocks and rm, chmod, chown: same behaivior as above ..

Only to compare, here is a neighbor file:

$ stat /var/lib/dpkg/info/linux-sound-base.md5sums 
  Datei: /var/lib/dpkg/info/linux-sound-base.md5sums 
  Größe: 545           Blöcke: 8          EA Block: 4096   Normale Datei 
Gerät: 802h/2050d    Inode: 27269131    Verknüpfungen: 1 
Zugriff: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root) 
Zugriff    : 2019-02-03 16:56:08.943545720 +0100 
Modifiziert: 2015-07-31 05:42:23.000000000 +0200 
Geändert   : 2018-05-22 01:20:37.178864616 +0200 
 Geburt    : - 

$ lsattr /var/lib/dpkg/info/linux-image-unsigned-4.19.1-041901-generic.list
--------------e--- 
/var/lib/dpkg/info/linux-image-unsigned-4.19.1-041901-generic.list