Fixes #593: Correct detection of machine type by checking size of /var/log/dmesg

[ncharles]

No description provided.

[Wolvverine]

What is the result of the dmesg command on these systems?

[ncharles]

it does contain the expect output of dmesg

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 3.16.0-5-amd64 (debian-kernel@lists.debian.org) (gcc version 4.8.4 (Debian 4.8.4-1) ) #1 SMP Debian 3.16.51-3+deb8u1 (2018-01-08)
[    0.000000] Command line: BOOT_IMAGE=boot/vmlinuz-3.16.0-5-amd64 initrd=boot/initrd.img-3.16.0-5-amd64 root=/dev/vda1 console=tty0 console=ttyS0,115200 ro quiet
[    0.000000] e820: BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007ffdbfff] usable
[    0.000000] BIOS-e820: [mem 0x000000007ffdc000-0x000000007fffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
...
[    0.000000] Hypervisor detected: KVM
[    0.000000] Booting paravirtualized kernel on KVM
...
[    0.759597] systemd[1]: Detected virtualization 'kvm'.
...
[    0.933007] usb 1-1: Product: QEMU USB Tablet

[Wolvverine]

Why not use dmesg output instead log file ?

[ncharles]

I'm not sure i understand your question - this PR uses dmesg instead of log file if log is not correctly available.

[g-bougard]

Argh... I didn't notice you made it other obsolete 2.4.x branch.
I have to backport to develop.

[ncharles]

what do you mean ? on which branch should it have been targeted?

[g-bougard]

Branch named develop is the branch to target since 2.4.1 as announced last summer.
I cherry-picked in develop: 278bada