Thread: How to downgrade kernel power?
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qiet72 is offline qiet72
2011-05-09 , 08:33
Posts: 10 | Thanked: 0 times | Joined on Jul 2010
#1
Hi,

I have noticed that psfreedom requires kernel power46:
Code:
/opt/psfreedom/modules/hermes/power46
/opt/psfreedom/modules/hermes/power46/psfreedom.ko
/opt/psfreedom/modules/pl3/power46
/opt/psfreedom/modules/pl3/power46/psfreedom.ko
Apparently, it has not yet been updated for power47 which is the current version.

If I do a apt-cache showpkg kernel-power-bootimg:
Code:
Package: kernel-power-bootimg
Versions: 
1:2.6.28-10power47 (/var/lib/apt/lists/repository.maemo.org_extras-devel_dists_fremantle_free_binary-armel_Packages)
 Description Language: 
                 File: /var/lib/apt/lists/repository.maemo.org_extras-devel_dists_fremantle_free_binary-armel_Packages
                  MD5: a4d0834ca0f1ff0b84fb3edb6eb28eda

2.6.28-maemo46 (/var/lib/apt/lists/repository.maemo.org_extras-devel_dists_fremantle_free_binary-armel_Packages) (/var/lib/dpkg/status)
 Description Language: 
                 File: /var/lib/apt/lists/repository.maemo.org_extras-devel_dists_fremantle_free_binary-armel_Packages
                  MD5: 53c49ec4e99b67df534edbf9b0d2ccdb

2.6.28-maemo45 (/var/lib/apt/lists/repository.maemo.org_extras-devel_dists_fremantle_free_binary-armel_Packages)
 Description Language: 
                 File: /var/lib/apt/lists/repository.maemo.org_extras-devel_dists_fremantle_free_binary-armel_Packages
                  MD5: 53c49ec4e99b67df534edbf9b0d2ccdb
It shows "1:2.5.28-10power47" as the current version but previous versions are named "2.6.28-maemoXX" - why?
Is the "maemoXX" versions the same as the "powerXX" versions?

If I downgrade to the previous version (46), I get this kernel:
Code:
-rw-r--r--    1 root     root      1793436 Nov 18 16:09 zImage-2.6.28-maemo46
Version 47 of power kernel is named "vmlinuz-2.6.28.10-power47".

Before downgrade:
Code:
[1|root@Nokia-N900|/boot]dpkg -l|grep kernel|grep power
ii  kernel-power                                        1:2.6.28-10power47                Flashable Linux kernel for kernel power 2.6.28.10
ii  kernel-power-bootimg                                1:2.6.28-10power47                    Linux kernel boot image
ii  kernel-power-flasher                                1:2.6.28-10power47                Linux kernel updater for kernel power 2.6.28.10
ii  kernel-power-modules                                1:2.6.28-10power47                Linux kernel modules for kernel power 2.6.28.10
ii  kernel-power-settings                               0.11                              Tools for the customization of kernel settings
After downgrade:
Code:
[1|root@Nokia-N900|/boot/multiboot]dpkg -l|grep kernel|grep power
ii  kernel-power                                        1:2.6.28-10power47                Flashable Linux kernel for kernel power 2.6.28.10
ii  kernel-power-bootimg                                2.6.28-maemo46                    Linux kernel boot image
ii  kernel-power-modules                                2.6.28-maemo46                    Linux kernel modules
rc  kernel-power-settings                               0.11                              Tools for the customization of kernel settings
If I look at /lib/modules, the name looks correct:
Code:
[1|root@Nokia-N900|/boot/multiboot]vdir /lib/modules
drwxr-xr-x    5 root     root          456 May  9 09:39 .
drwxr-xr-x   10 root     root         8072 May  7 20:34 ..
drwxr-xr-x    2 root     root         7672 May  9 09:39 2.6.28-omap1
drwxr-xr-x    2 root     root          984 May  9 09:39 2.6.28.10maemo-omap1
drwxr-xr-x    2 root     root        19640 May  9 09:39 2.6.28.10power46
lrwxrwxrwx    1 root     root           16 May  9 09:39 current -> 2.6.28.10power46
So why does kernel-power-modules have the correct name (power46) but kernel-power-bootimg have a different name (maemo46)?

qiet72