# Problems with update
**URL:** https://dietpi.com/forum/t/problems-with-update/25453
**Category:** Troubleshooting
**Created:** [30 August 2026 12:30 UTC](https://dietpi.com/forum/t/problems-with-update/25453 "2026-08-30T12:30:21Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@mkobi](https://dietpi.com/forum/u/mkobi)
#### Post date: [30 August 2026 12:30 UTC](https://dietpi.com/forum/t/problems-with-update/25453/1 "2026-08-30T12:30:21Z")
I wanted to install new software (docker). Then, it ran the update-process, which failed with the fallowing error-msg:
```auto
│ - Exit code: 100
│ - DietPi version: v10.6.2 (MichaIng/master) | HW_MODEL: 21 |
│ HW_ARCH: 10 | DISTRO: 8
│ - Error log:
│ Hit:1 trixie InRelease
│ Hit:2 trixie-updates InRelease
│ Hit:3 trixie-security
│ InRelease
│ Sub-process /usr/bin/sqv returned an error code (1), error message
│ is: Signing key on CD665CBA0E2F88B7373F7CB997203C7B3ADCA79D is not
│ bound: No binding signature at time 2025-09-22T18:33:03Z
│ because: Policy rejected non-revocation signature
│ (PositiveCertification) requiring second pre-image resistance
because: SHA1 is not considered secure since 2026-02-01T00:00:00Z
│ Hit:8 trixie InRelease
│ Fetched 6685 B in 0s (22.0 kB/s)
│ Reading package lists...
Native PC (x86_64) | IP: 192.168.0.x | Use up/down buttons to scroll text
│ W: An error occurred during the signature verification. The
│ repository is not updated and the previous index files will be used.
│ OpenPGP signature verification failed:
│ https://downloads.plex.tv/repo/deb public InRelease: Sub-process
│ /usr/bin/sqv returned an error code (1), error message is: Signing
│ key on CD665CBA0E2F88B7373F7CB997203C7B3ADCA79D is not bound:
│ No binding signature at time 2025-09-22T18:33:03Z because: Policy
│ rejected non-revocation signature (PositiveCertification) requiring
│ second pre-image resistance because: SHA1 is not considered secure
│ since 2026-02-01T00:00:00Z
│ E: Failed to fetch
│ https://downloads.plex.tv/repo/deb/dists/public/InRelease
│ Sub-process /usr/bin/sqv returned an error code (1), error message
│ is: Signing key on CD665CBA0E2F88B7373F7CB997203C7B3ADCA79D is not
│ bound: No binding signature at time 2025-09-22T18:33:03Z
│ because: Policy rejected non-revocation signature
│ (PositiveCertification) requiring second pre-image resistance
│ because: SHA1 is not considered secure since 2026-02-01T00:00:00Z
│ E: Some index files failed to download. They have been ignored, or
│ old ones used instead.
```
Any ideas out there?
How can I fix this problem. Thank you very much for your help!
---
### Author:  [@MichaIng](https://dietpi.com/forum/u/MichaIng)
#### Post date: [30 August 2026 16:14 UTC](https://dietpi.com/forum/t/problems-with-update/25453/2 "2026-08-30T16:14:10Z")
You are using an outdated Plex APT repository. Did you install Plex manually or via `dietpi-software`?
If installed via `dietpi-software`, it should have been updated and cleaned up with DietPi v10.1, so I guess you installed it manually.
If you installed it manually, here is the updated docs: [Enable repository updating for supported Linux server distributions | Plex Support](https://support.plex.tv/articles/235974187)
Before following them, I suggest to cleanup the mess the Plex package did leave behind:
```sh
rm -f /etc/apt/sources.list.d/plexmediaserver.list
rm -f /etc/apt/sources.list.d/plex.list
rm -f /usr/share/keyrings/plexmediaserver.gpg
rm -f /usr/share/keyrings/plexmediaserver.v2.gpg
rm -f /etc/apt/keyrings/plexmediaserver.v2.gpg
rm -f /etc/apt/keyrings/plexmediaserver.gpg
```
For reference: [Issue Upgrading to PMS 1.43.0.10467 on Debian and RHEL based distributions - Plex Media Server - Plex Forum](https://forums.plex.tv/t/935847)
---
### Author:  [@mkobi](https://dietpi.com/forum/u/mkobi)
#### Post date: [31 August 2026 15:33 UTC](https://dietpi.com/forum/t/problems-with-update/25453/3 "2026-08-31T15:33:21Z")
Thank you very much for your help! Your answer solved the problem.