Some years ago I switched several 32bit Linode servers to the 64bit kernel (as per instructions here https://www.linode.com/docs/platform/disk-images/switch-to-a-64-bit-linux-kernel). Most of them have been operating as 64bit since then. Output of commands show the following on these 64bits:
[root@host1 ~]# getconf LONG_BIT 64 [root@host1 ~]# uname -a Linux host1.mydomain.co.uk 4.6.5-x86_64-linode71 #2 SMP Fri Jul 29 16:16:25 EDT 2016 x86_64 x86_64 x86_64 GNU/Linux
But a couple of servers which are also on the 64bit kernel show 32 from getconf:
[root@host2 ~]# getconf LONG_BIT 32 [root@host2 ~]# uname -a Linux host2.mydomain.co.uk 4.9.15-x86_64-linode81 #1 SMP Fri Mar 17 09:47:36 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux
Linode suggest maybe a package has changed it at some point.
The problem is its preventing me installing some packages via yum I think. On the 64bit servers I can install PHP7 for example, but on the 32bit I cannot install the necessary repos to install PHP7, they don't exist for 32bit.
The servers should be very similar. I set them up years ago as 32bit, changed them all to 64bit kernels years ago, but only recently realise most of my servers can have PHP7, but only a couple can't, due to them reporting as 32.
Does anyone know why this could happen? Can the output of getconf be changed?
32bit server getconf directory files:
[root@host2 ~]# ls -l /usr/libexec/getconf total 96 lrwxrwxrwx 1 root root 20 Jun 11 2016 default -> POSIX_V6_ILP32_OFF32 -rwxr-xr-x 4 root root 23740 May 10 2016 POSIX_V6_ILP32_OFF32 -rwxr-xr-x 4 root root 23740 May 10 2016 POSIX_V6_ILP32_OFFBIG -rwxr-xr-x 4 root root 23740 May 10 2016 POSIX_V7_ILP32_OFF32 -rwxr-xr-x 4 root root 23740 May 10 2016 POSIX_V7_ILP32_OFFBIG
64bit server getconf directory files:
[root@host1 ~]# ls -l /usr/libexec/getconf total 48 lrwxrwxrwx 1 root root 19 Apr 25 10:56 default -> POSIX_V6_LP64_OFF64 -rwxr-xr-x 2 root root 22808 Apr 11 16:49 POSIX_V6_LP64_OFF64 -rwxr-xr-x 2 root root 22808 Apr 11 16:49 POSIX_V7_LP64_OFF64