Subj : Re: Why has new bookwork installation given me a newer kernel than an u
To   : All
From : Chris Green
Date : Fri Jan 31 2025 09:48:07

I think there's something awry or different in some way on the older
system.  There is a hardware difference, the older system (which is a
2Gb Pi 4B) boots in the standard way from an SD card.  The newer
system (which is a 1Gb Pi 4B) boots from USB.

The contents of /boot are different on the two systems:-

Newer Pi 4B (wiht kernel 6.6.62):-

    chris@newodinpi$ ls /boot
    System.map-6.6.51+rpt-rpi-2712  config-6.6.51+rpt-rpi-v8        initrd.img-6.6.51+rpt-rpi-v8    vmlinuz-6.6.51+rpt-rpi-v8
    System.map-6.6.51+rpt-rpi-v8    config-6.6.62+rpt-rpi-2712      initrd.img-6.6.62+rpt-rpi-2712  vmlinuz-6.6.62+rpt-rpi-2712
    System.map-6.6.62+rpt-rpi-2712  config-6.6.62+rpt-rpi-v8        initrd.img-6.6.62+rpt-rpi-v8    vmlinuz-6.6.62+rpt-rpi-v8
    System.map-6.6.62+rpt-rpi-v8    config.txt                      issue.txt
    cmdline.txt                     firmware                        overlays
    config-6.6.51+rpt-rpi-2712      initrd.img-6.6.51+rpt-rpi-2712  vmlinuz-6.6.51+rpt-rpi-2712
    chris@newodinpi$

Older Pi 4B (with kernel 6.1.21):-

    chris@homepi$ ls /boot
    COPYING.linux             bcm2710-rpi-zero-2.dtb  cmdline.txt   fixup_cd.dat  start4.elf
    LICENCE.broadcom          bcm2711-rpi-4-b.dtb     config.txt    fixup_db.dat  start4cd.elf
    bcm2710-rpi-2-b.dtb       bcm2711-rpi-400.dtb     fixup.dat     fixup_x.dat   start4db.elf
    bcm2710-rpi-3-b-plus.dtb  bcm2711-rpi-cm4-io.dtb  fixup4.dat    issue.txt     start4x.elf
    bcm2710-rpi-3-b.dtb       bcm2711-rpi-cm4.dtb     fixup4cd.dat  kernel8.img   start_cd.elf
    bcm2710-rpi-cm3.dtb       bcm2711-rpi-cm4s.dtb    fixup4db.dat  overlays      start_db.elf
    bcm2710-rpi-zero-2-w.dtb  bootcode.bin            fixup4x.dat   start.elf     start_x.elf
    chris@homepi$


The newer system has all the bcm and similar files in /boot/firmware.  I can't see the vmlinuz
files and such anywhere on the older system.

The older system does seem to have a rather anomolous configuration:-

    root@homepi# apt-file search vmlinuz-6.6.62
    linux-image-6.6.62+rpt-rpi-2712: /boot/vmlinuz-6.6.62+rpt-rpi-2712
    linux-image-6.6.62+rpt-rpi-v8: /boot/vmlinuz-6.6.62+rpt-rpi-v8

So apt thinks the vmlinuz files should be in /boot but they definitely aren't there.
It also shows the version as 6.6.62 and that *isn't* the actually running kernel.



I have just tried:-

    apt reinstall linux-image-6.6.62+rpt-rpi-v7
    apt reinstall linux-image-6.6.62+rpt-rpi-v8
    apt reinstall linux-image-6.6.51+rpt-rpi-2712


But apart from installing the vmlinuz files in /boot that hasn't changed anything,
it still boots into a 6.1.21 kernel.

It seems maybe as if something in the boot sequence is different/wrong.

--
Chris Green
·

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