Thanks for the journal. This shows that the error message happens way
earlier than userspace/pid 1 starts. So it's either the kernel itself,
or the initramfs. I can indeed see this error message in our ppc64el
scalingstack instances as well.
So I went through the initramfs-tools hooks and scripts and found
/usr/share/initramfs-tools/scripts/local-premount/fixrtc, which indeed
does call "hwclock -s || true" (-s == --hctosys). However, while that's
promising that isn't it: That code only runs if "fixrtc" is on the
command line, which it isn't (at least for me). Adding a set -x there
also shows that it runs after the error message:
[ 0.625781] evm: HMAC attrs: 0x1
[ 0.625920] hctosys: unable to open rtc device (rtc0)
[ 0.626595] Freeing unused kernel memory: 6144K (c000000000e80000 -
c000000001480000)
Loading, please wait...
starting version 229
[ 0.637968] random: udevadm urandom read with 1 bits of entropy available
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... + PREREQ=
+ BROKEN_CLOCK=
+ ROOTDEV=
+ SYSTEMPART=
+ cat /proc/cmdline
+ value=UUID=9f6cb10b-904a-4b22-b9e1-80455f176cc2
+ ROOTDEV=/dev/disk/by-uuid/9f6cb10b-904a-4b22-b9e1-80455f176cc2
+ [ -z /dev/disk/by-uuid/9f6cb10b-904a-4b22-b9e1-80455f176cc2 -a -n ]
+ [ -n -a -n /dev/disk/by-uuid/9f6cb10b-904a-4b22-b9e1-80455f176cc2 ]
+ exit 0
done.
Warning: fsck not present, so skipping root file system
[ 2.608767] EXT4-fs (vda1): mounted filesystem with ordered data mode. Opts:
(null)
done.
Begin: Running /scripts/local-bottom ... done.
Begin: Running /scripts/init-bottom ... done.
[ 2.657889] systemd[1]: systemd 229 running in system mode. (+PAM +AUDIT
+SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSET
UP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN)
** Package changed: util-linux (Ubuntu) => initramfs-tools (Ubuntu)
** Changed in: initramfs-tools (Ubuntu)
Status: Incomplete => Triaged
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https://bugs.launchpad.net/bugs/1410604
Title:
ISST-LTE: unable to open rtc device
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