[Howto] update the ZFS bootcode after zfs-update

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problem:you can’t boot from zfs-boot, because of a version mismatch between old bootloader-code and upgraded zfs-version. ZFS: unsupported feature: com.delphix:head_errlogZFS: pool ‘foo’ is not supported Can’t find /boot/zfsloaderCant’ find /boot/loader reason:you have upgraded your bootable zpool to a new zfs-version … Continued

[SSH] auto disconnect after login attempt

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version:OpenSSH 9.0p1 command:ssh -v <server> error message:Authenticated to <server> ([<ip-adress>]:<port>) using “publickey”.debug1: channel 0: new [client-session]debug1: Requesting no-more-sessions@openssh.comdebug1: Entering interactive session.<…>debug1: client_input_channel_req: channel 0 rtype exit-signal reply 0debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0debug1: channel 0: free: client-session, nchannels … Continued

[SAMBA] Can’t locate JSON.pm in @INC

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version:samba-4.17.1error message:Can’t locate JSON.pm in @INC (you may need to install the JSON module) solution:install the JSON-module in PERLexecute following command as root: cpan JSON

[FreeBSD] zfs: out of temporary buffer space

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system: FreeBSD v13.0-p7 reason: the bootloader is broken (e.g. after update) solution: reinstall the bootloader(s) to your boot disk(s) example: zroot (2-disk zfs-mirror with GPT partition tables) download a bootable FreeBSD-Image(e.g. FreeBSD-13.0-RELEASE-amd64-memstick.img) copy the image-file to a USB-stick (attention: all … Continued

[Howto] upgrade DEBIAN if distribution name has changed

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problem: if the name of the DEBIAN distribution has changed (e.g. testing-version changes from “bullseye” to “bookworm”), aptitude denies the update procedure. It requests a manual command to proceed. solution: execute the command apt-get update –allow-releaseinfo-change (it updates the file … Continued