On Wed, Jun 25, 2014 at 5:52 PM, Anssi Johansson centos@miuku.net wrote:
25.6.2014 23.24, Akemi Yagi kirjoitti:
The first version of the centosplus kernel for 7 is now available for testing. The kernel version is 3.10.0-123.el7 (GA kernel). You can download it from:
[...]
Feedback greatly appreciated. Happy testing!
I installed the plus kernel on:
- VirtualBox VM running in BIOS mode
- VirtualBox VM running in UEFI mode
- Dell R320 running in UEFI mode
- Acer Aspire XC-105 running in UEFI mode
Some remarks:
- Ajusting DEFAULTKERNEL in /etc/sysconfig/kernel to kernel-plus made
the plus kernel as the default kernel, as expected
- I saw a slightly confusing menu entry in grub.conf after installing
the plus kernel:
menuentry 'CentOS Linux (3.10.0-123.el7.centos.plus.x86_64) 7 (Broken)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-123.1.2.el7.x86_64-advanced-2b358b21-34b5-492e-b296-af1d4fbdb5f6'
Apparently the running kernel version affects how the menu entry is constructed. I was running 3.10.0-123.1.2 when I ran "yum install kernel-plus". The latter $menuentry_id_option doesn't seem to be visible anywhere, if you don't have a look at grub.conf by yourself.
"modprobe reiserfs" worked and it brought "reiserfs" to /proc/filesystems
The kernel-plus packages devel, abi-whitelists, doc, headers, tools,
tools-libs, tools-libs-devel, perf, python-perf were installable, although kernel-plus-tools(-libs) and kernel-tools(-libs) can't coexist on the same box, and the non-plus tools packages had to be removed first. This is reportedly intentional.
- Removing the plus kernel worked, but I got a warning about missing
files for modules.softdep and modules.devname. This message is reportedly harmless and can be ignored.
- Acer supports UEFI secure boot, and the plus kernel booted with it
enabled. However, the system was running in 'Setup' mode, so it's possible that secure boot was not really 'fully enabled' at that stage.
- The menu entries in grub look a bit different as compared to the stock
kernels:
CentOS Linux (3.1.0-123.el7.centos.plus.x86_64) 7 (Broken) CentOS Linux, with Linux 3.10.0-123.1.2.el7.x86_64 CentOS Linux, with Linux 0-rescue-...
Thank you for performing such extensive testing. Glad to learn there was no big surprise.
The "missing modules.softdep and modules.devname" warnings happen with the distro kernel as well. I tried to find out where this comes from but have not been successful.
Could you check to see if there are any "residuals" in /lib/modules after the plus kernel has been uninstalled? Also in /boot ?
Akemi