#1764 Issue closed: IBM power8 hmc console disconnects at root prompt for rear rescue

Labels: support / question, fixed / solved / done, special hardware or VM

pspatola101 opened issue at 2018-03-30 16:36:

Relax-and-Recover (ReaR) Issue Template

Fill in the following items before submitting a new issue
(quick response is not guaranteed with free support):

  • rear version (/usr/sbin/rear -V):
    rear -V
    Relax-and-Recover 2.3 / 2017-12-20
  • OS version (cat /etc/rear/os.conf or lsb_release -a):
    cat /etc/rear/os.conf
    cat: /etc/rear/os.conf: No such file or directory
    lsb_release -i -s
    -bash: lsb_release: command not found

[root@sssxfs03 rear]# uname -a
Linux sssxfs03 3.10.0-514.21.1.el7.ppc64le #1 SMP Sat Apr 22 02:38:06 EDT 2017 ppc64le ppc64le ppc64le GNU/Linux

  • rear configuration files (cat /etc/rear/site.conf or cat /etc/rear/local.conf):
    OUTPUT=ISO
    BACKUP=NETFS
    BACKUP_URL="nfs://172.19.5.99/stuff/unix/iowa"
    SSH_ROOT_PASSWORD="reardemo"
    BOOT_FROM_SAN=y
    AUTOEXCLUDE_MULTIPATH=n
    REAR_INITRD_COMPRESSION=lzma
    ONLY_INCLUDE_VG=( rhel_sssxfs03 )
    BACKUP_PROG_EXCLUDE=( "${BACKUP_PROG_EXCLUDE[@]}" '/usr/lpp/mmfs/4.2.3.1' '/usr/lpp/mmfs/4.2.3.2' )

  • Are you using legacy BIOS or UEFI boot?BIOS

  • Brief description of the issue: The hmc console vterm disconnects when I get to the root prompt for recovery.
    sssxfs03 login: root
    -bash: cannot set terminal process group (-1): Inappropriate ioctl for device
    -bash: no job control in this shell

At this point I cant type anything in. I tried setting the TERM but that didnt work. I did notice during the recovery the message.
[ 0.000103] console [hvc0] enabled, bootconsole disabled
[ 0.000103] console [hvc0] enabled, bootconsole disabled
The hvc is for a XEN and not for IBM Power. Is there a way to change this?
This is the full recovery:
OF stdout device is: /vdevice/vty@30000000
Preparing to boot Linux version 3.10.0-514.21.1.el7.ppc64le (mockbuild@ppc-047.build.eng.bos.redhat.com) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC) ) #1 SMP Sat Apr 22 02:38:06 EDT 2017
Detected machine type: 0000000000000101
Max number of cores passed to firmware: 256 (NR_CPUS = 2048)
Calling ibm,client-architecture-support... done
command line: BOOT_IMAGE=/kernel root=/dev/ram0 ip=10.97.31.245::10.97.28.1:255.255.252.0:sssxfs04:eth0:none
memory layout at init:
memory_limit : 0000000000000000 (16 MB aligned)
alloc_bottom : 000000000e4b0000
alloc_top : 0000000010000000
alloc_top_hi : 0000000010000000
rmo_top : 0000000010000000
ram_top : 0000000010000000
instantiating rtas at 0x000000000eca0000... done
prom_hold_cpus: skipped
copying OF device tree...
Building dt strings...
Building dt structure...
Device tree strings 0x000000000e4c0000 -> 0x000000000e4c170c
Device tree struct 0x000000000e4d0000 -> 0x000000000e500000
Calling quiesce...
returning from prom_init
[ 0.000000] Using pSeries machine description
[ 0.000000] Page sizes from device-tree:
[ 0.000000] base_shift=12: shift=12, sllp=0x0000, avpnm=0x00000000, tlbiel=1, penc=0
[ 0.000000] base_shift=12: shift=16, sllp=0x0000, avpnm=0x00000000, tlbiel=1, penc=7
[ 0.000000] base_shift=12: shift=24, sllp=0x0000, avpnm=0x00000000, tlbiel=1, penc=56
[ 0.000000] base_shift=16: shift=16, sllp=0x0110, avpnm=0x00000000, tlbiel=1, penc=1
[ 0.000000] base_shift=16: shift=24, sllp=0x0110, avpnm=0x00000000, tlbiel=1, penc=8
[ 0.000000] base_shift=24: shift=24, sllp=0x0100, avpnm=0x00000001, tlbiel=0, penc=0
[ 0.000000] base_shift=34: shift=34, sllp=0x0120, avpnm=0x000007ff, tlbiel=0, penc=3
[ 0.000000] Using 1TB segments
[ 0.000000] Found initrd at 0xc00000000be00000:0xc00000000e4ac692
[ 0.000000] bootconsole [udbg0] enabled
[ 0.000000] Partition configured for 64 cpus.
[ 0.000000] CPU maps initialized for 8 threads per core
[ 0.000000] Starting Linux PPC64 #1 SMP Sat Apr 22 02:38:06 EDT 2017
[ 0.000000] -----------------------------------------------------
[ 0.000000] ppc64_pft_size = 0x1b
[ 0.000000] physicalMemorySize = 0x100000000
[ 0.000000] htab_hash_mask = 0xfffff
[ 0.000000] -----------------------------------------------------
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 3.10.0-514.21.1.el7.ppc64le (mockbuild@ppc-047.build.eng.bos.redhat.com) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC) ) #1 SMP Sat Apr 22 02:38:06 EDT 2017
[ 0.000000] [boot]0012 Setup Arch
[ 0.000000] PPC64 nvram contains 15360 bytes
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x00000000-0xffffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 2: [mem 0x00000000-0xffffffff]
[ 0.000000] Could not find start_pfn for node 0
[ 0.000000] [boot]0015 Setup Done
[ 0.000000] PERCPU: Embedded 3 pages/cpu @c000000001600000 s124952 r0 d71656 u262144
[ 0.000000] Built 2 zonelists in Node order, mobility grouping on. Total pages: 65480
[ 0.000000] Policy zone: DMA
[ 0.000000] Kernel command line: BOOT_IMAGE=/kernel root=/dev/ram0 ip=10.97.31.245::10.97.28.1:255.255.252.0:sssxfs04:eth0:none
[ 0.000000] PID hash table entries: 4096 (order: -1, 32768 bytes)
[ 0.000000] Sorting __ex_table...
[ 0.000000] freeing bootmem node 2
[ 0.000000] Memory: 4011904k/4194304k available (17152k kernel code, 0k reserved, 1344k data, 3657k bss, 4288k init)
[ 0.000000] SLUB: HWalign=128, Order=0-3, MinObjects=0, CPUs=64, Nodes=256
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] RCU restricting CPUs from NR_CPUS=2048 to nr_cpu_ids=64.
[ 0.000000] NR_IRQS:512 nr_irqs:512 16
[ 0.000001] clocksource: timebase mult[1f40000] shift[24] registered
[ 0.000090] Console: colour dummy device 80x25
[ 0.000103] console [hvc0] enabled, bootconsole disabled
[ 0.000103] console [hvc0] enabled, bootconsole disabled
[ 0.000825] allocated 1048576 bytes of page_cgroup
[ 0.000831] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[ 0.000868] Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl
[ 0.000874] pid_max: default: 65536 minimum: 512
[ 0.000921] Security Framework initialized
[ 0.000933] SELinux: Initializing.
[ 0.001014] Dentry cache hash table entries: 524288 (order: 6, 4194304 bytes)
[ 0.001668] Inode-cache hash table entries: 262144 (order: 5, 2097152 bytes)
[ 0.001984] Mount-cache hash table entries: 4096
[ 0.002719] Initializing cgroup subsys memory
[ 0.002770] Initializing cgroup subsys devices
[ 0.002772] Initializing cgroup subsys freezer
[ 0.002775] Initializing cgroup subsys net_cls
[ 0.002777] Initializing cgroup subsys blkio
[ 0.002779] Initializing cgroup subsys perf_event
[ 0.002782] Initializing cgroup subsys hugetlb
[ 0.002784] Initializing cgroup subsys pids
[ 0.002786] Initializing cgroup subsys net_prio
[ 0.002909] EEH: pSeries platform initialized
[ 0.002920] POWER8 performance monitor hardware support registered
[ 0.010572] Brought up 32 CPUs
[ 0.013752] devtmpfs: initialized
[ 0.020921] EEH: devices created
[ 0.021688] atomic64 test passed
[ 0.022147] NET: Registered protocol family 16
[ 0.022222] EEH: No capable adapters found
[ 0.022238] IBM eBus Device Driver
[ 0.022405] pstore: Registered nvram as persistent store backend
[ 0.024301] PCI: Probing PCI hardware
[ 0.024394] pseries-rng: Registering arch random hook.
[ 0.050898] vgaarb: loaded
[ 0.050946] SCSI subsystem initialized
[ 0.050973] usbcore: registered new interface driver usbfs
[ 0.050981] usbcore: registered new interface driver hub
[ 0.051076] usbcore: registered new device driver usb
[ 0.051353] NetLabel: Initializing
[ 0.051356] NetLabel: domain hash size = 128
[ 0.051358] NetLabel: protocols = UNLABELED CIPSOv4
[ 0.051369] NetLabel: unlabeled traffic allowed by default
[ 0.051478] Switched to clocksource timebase
[ 0.056564] NET: Registered protocol family 2
[ 0.056780] TCP established hash table entries: 32768 (order: 2, 262144 bytes)
[ 0.056851] TCP bind hash table entries: 32768 (order: 3, 524288 bytes)
[ 0.056904] TCP: Hash tables configured (established 32768 bind 32768)
[ 0.056913] TCP: reno registered
[ 0.056923] UDP hash table entries: 2048 (order: 0, 65536 bytes)
[ 0.056934] UDP-Lite hash table entries: 2048 (order: 0, 65536 bytes)
[ 0.057047] NET: Registered protocol family 1
[ 0.057082] Unpacking initramfs...
[ 8.382331] Freeing initrd memory: 39552K (c00000000be00000 - c00000000e4a0000)
[ 8.382995] IOMMU table initialized, virtual merging enabled
[ 8.431976] hv-24x7: read 1330 catalog entries, created 337 event attrs (0 failures), 169 descs
[ 8.432507] futex hash table entries: 16384 (order: 5, 2097152 bytes)
[ 8.432665] Initialise system trusted keyring
[ 8.432685] audit: initializing netlink socket (disabled)
[ 8.432701] type=2000 audit(1522423719.430:1): initialized
[ 8.454278] HugeTLB registered 16 MB page size, pre-allocated 0 pages
[ 8.454284] HugeTLB registered 16 GB page size, pre-allocated 0 pages
[ 8.455236] zpool: loaded
[ 8.455239] zbud: loaded
[ 8.455465] VFS: Disk quotas dquot_6.5.2
[ 8.455513] Dquot-cache hash table entries: 8192 (order 0, 65536 bytes)
[ 8.455683] msgmni has been set to 8040
[ 8.455734] Key type big_key registered
[ 8.456427] NET: Registered protocol family 38
[ 8.456434] Key type asymmetric registered
[ 8.456437] Asymmetric key parser 'x509' registered
[ 8.456460] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[ 8.456588] io scheduler noop registered
[ 8.456593] io scheduler deadline registered (default)
[ 8.456619] io scheduler cfq registered
[ 8.456668] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[ 8.456916] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 8.457171] Linux agpgart interface v0.103
[ 8.457189] crash memory driver: version 1.1
[ 8.457289] rdac: device handler registered
[ 8.457351] hp_sw: device handler registered
[ 8.457356] emc: device handler registered
[ 8.457358] alua: device handler registered
[ 8.457382] libphy: Fixed MDIO Bus: probed
[ 8.457409] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 8.457417] ehci-pci: EHCI PCI platform driver
[ 8.457424] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 8.457431] ohci-pci: OHCI PCI platform driver
[ 8.457438] uhci_hcd: USB Universal Host Controller Interface driver
[ 8.457465] usbcore: registered new interface driver usbserial
[ 8.457470] usbcore: registered new interface driver usbserial_generic
[ 8.457476] usbserial: USB Serial support registered for generic
[ 8.457513] mousedev: PS/2 mouse device common for all mice
[ 8.457657] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[ 8.457672] cpuidle: using governor menu
[ 8.481483] nx_compress_pseries ibm,compression-v1: nx842_OF_upd: device disabled
[ 8.521507] hidraw: raw HID events driver (C) Jiri Kosina
[ 8.521575] usbcore: registered new interface driver usbhid
[ 8.521577] usbhid: USB HID core driver
[ 8.521589] drop_monitor: Initializing network drop monitor service
[ 8.521648] TCP: cubic registered
[ 8.521652] Initializing XFRM netlink socket
[ 8.521736] NET: Registered protocol family 10
[ 8.522004] NET: Registered protocol family 17
[ 8.522123] Loading compiled-in X.509 certificates
[ 8.522496] Loaded X.509 cert 'Red Hat Enterprise Linux Driver Update Program (key 3): bf57f3e87362bc7229d9f465321773dfd1f77a80'
[ 8.522858] Loaded X.509 cert 'Red Hat Enterprise Linux kpatch signing key: 4d38fd864ebe18c5f0b72e3852e2014c3a676fc8'
[ 8.523225] Loaded X.509 cert 'Red Hat Enterprise Linux kernel signing key: abee87f9ae3c21f216ca2d00b836473ad6a052a0'
[ 8.523236] registered taskstats version 1
[ 8.523735] rtc-generic rtc-generic: setting system clock to 2018-03-30 15:28:39 UTC (1522423719)
[ 8.524043] Freeing unused kernel memory: 4288K (c000000000c90000 - c0000000010c0000)
[ 8.527056] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 8.527069] systemd[1]: Inserted module 'ip_tables'
[ 8.531260] systemd[1]: systemd 219 running in system mode. (+PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
[ 8.531357] systemd[1]: Detected architecture ppc64-le.
[ 8.531362] systemd[1]: Running with unpopulated /etc.

Welcome to Red Hat Enterprise Linux!

[ 8.531520] systemd[1]: Set hostname to .
[ 8.531544] systemd[1]: Initializing machine ID from random generator.
[ 8.532084] systemd[1]: Failed to populate /etc with preset unit settings, ignoring: Invalid argument
[ OK ] Reached target System Initialization.
[ 8.536588] systemd[1]: Reached target System Initialization.
[ 8.536596] systemd[1]: Starting System Initialization.
[ OK ] Created slice -.slice.
[ 8.536814] systemd[1]: Created slice -.slice.
[ 8.536822] systemd[1]: Starting -.slice.
[ OK ] Listening on udev Control Socket.
[ 8.536991] systemd[1]: Listening on udev Control Socket.
[ 8.536998] systemd[1]: Starting udev Control Socket.
[ OK ] Listening on Journal Socket.
[ 8.537135] systemd[1]: Listening on Journal Socket.
[ 8.537142] systemd[1]: Starting Journal Socket.
[ OK ] Listening on D-Bus System Message Bus Socket.
[ 8.537268] systemd[1]: Listening on D-Bus System Message Bus Socket.
[ 8.537276] systemd[1]: Starting D-Bus System Message Bus Socket.
[ OK ] Listening on udev Kernel Socket.
[ 8.537430] systemd[1]: Listening on udev Kernel Socket.
[ 8.537437] systemd[1]: Starting udev Kernel Socket.
[ OK ] Listening on Delayed Shutdown Socket.
[ 8.537554] systemd[1]: Listening on Delayed Shutdown Socket.
[ 8.537561] systemd[1]: Starting Delayed Shutdown Socket.
[ OK ] Listening on Syslog Socket.
[ 8.537681] systemd[1]: Listening on Syslog Socket.
[ 8.537689] systemd[1]: Starting Syslog Socket.
[ OK ] Created slice system.slice.
[ 8.537849] systemd[1]: Created slice system.slice.
[ 8.537856] systemd[1]: Starting system.slice.
[ OK ] Created slice system-serial\x2dgetty.slice.
[ 8.538026] systemd[1]: Created slice system-serial\x2dgetty.slice.
[ 8.538033] systemd[1]: Starting system-serial\x2dgetty.slice.
[ 8.538459] systemd[1]: Starting udev Kernel Device Manager...
Starting udev Kernel Device Manager...
[ 8.538869] systemd[1]: Starting Relax-and-Recover boot script...
Starting Relax-and-Recover boot script...
[ OK ] Started Relax-and-Recover sshd service.
[ 8.539447] systemd[1]: Started Relax-and-Recover sshd service.
[ 8.539574] systemd[1]: Starting Relax-and-Recover sshd service...
Starting Relax-and-Recover sshd service...
[ 8.540056] systemd[1]: Starting udev Coldplug all Devices...
Starting udev Coldplug all Devices...
[ OK ] Created slice system-getty.slice.
[ 8.540452] systemd[1]: Created slice system-getty.slice.
[ 8.540464] systemd[1]: Starting system-getty.slice.
[ OK ] Listening on Logging Socket.
[ 8.540604] systemd[1]: Listening on Logging Socket.
[ 8.540611] systemd[1]: Starting Logging Socket.
[ OK ] Reached target Sockets.
[ OK ] Started Journal Service.
Starting Journal Service...
[ OK ] Started udev Kernel Device Manager.
[ OK ] Reached target Basic System.
Starting Initialize Rescue System...
[ OK ] Started Relax-and-Recover boot script.
[ OK ] Found device /dev/ttyS0.
[ OK ] Started udev Coldplug all Devices.
[ OK ] Found device /dev/hvc0.
[ OK ] Started Relax-and-Recover run-syslog script.
Starting Relax-and-Recover run-syslog script...

Configuring Relax-and-Recover rescue system

Running 00-functions.sh...
Running 01-run-ldconfig.sh...
Running 10-console-setup.sh...
Loading /etc/dumpkeys.out
Running 20-check-boot-options.sh...
IP address will be overruled by kernel option ip=10.97.31.245::10.97.28.1:255.255.252.0:sssxfs04:eth0:none
Running 40-start-udev-or-load-modules.sh...
/etc/scripts/system-setup.d/00-functions.sh: line 16: udevsettle: command not found
Waiting for udev ... /etc/scripts/system-setup.d/00-functions.sh: line 16: udevsettle: command not found
done.
Running 41-load-special-modules.sh...
Running 42-engage-scsi.sh...
Running 45-serial-console.sh...
Running 55-migrate-network-devices.sh...
No network interface mapping is specified in /etc/rear/mappings/mac
The original network interface eth0 d2:d5:09:ee:88:02 is not available

  1. eth0 26:2f:0a:88:f2:02 ibmveth
  2. Skip replacing eth0 d2:d5:09:ee:88:02
    Choose replacement for eth0 d2:d5:09:ee:88:02 2
    Skipping eth0 d2:d5:09:ee:88:02 (you may have to manually fix your network setup)
    The original network interface eth1 d2:d5:09:ee:88:03 is not available
  3. eth0 26:2f:0a:88:f2:02 ibmveth
  4. Skip replacing eth1 d2:d5:09:ee:88:03
    Choose replacement for eth1 d2:d5:09:ee:88:03 2
    Skipping eth1 d2:d5:09:ee:88:03 (you may have to manually fix your network setup)
    Running 58-start-dhclient.sh...
    Running 60-network-devices.sh...
    Cannot find device "eth1"
    Cannot find device "eth1"
    Cannot find device "eth1"
    Cannot find device "eth1"
    Running 62-routing.sh...
    Running 63-teaming.sh...
    Running 65-sysctl.sh...
    Running 67-check-by-label-cdrom.sh...
    Did not find a cdrom device. Recover might fail.
    Running 99-makedev.sh...

Relax-and-Recover rescue system is ready

[ OK ] Started Initialize Rescue System.
[ OK ] Started Getty on tty3.
Starting Getty on tty3...
[ OK ] Started Getty on tty2.
Starting Getty on tty2...
[ OK ] Started Getty on hvc0.
Starting Getty on hvc0...
[ OK ] Started Getty on tty0.
Starting Getty on tty0...
[ OK ] Started Getty on tty1.
Starting Getty on tty1...
[ OK ] Started Getty on tty4.
Starting Getty on tty4...
[ OK ] Reached target Login Prompts.
[ OK ] Reached target Multi-User.
[ OK ] Started Serial Getty on ttyS0.
Starting Serial Getty on ttyS0...
[ OK ] Started Serial Getty on hvc0.

Relax-and-Recover 2.3 / 2017-12-20

Relax-and-Recover comes with ABSOLUTELY NO WARRANTY; for details see
the GNU General Public License at: http://www.gnu.org/licenses/gpl.html

Host sssxfs03 using Backup NETFS and Output ISO
Build date: Thu, 29 Mar 2018 14:41:57 -0400

Red Hat Enterprise Linux
Kernel 3.10.0-514.21.1.el7.ppc64le on an ppc64le

SSH fingerprint: 2048 65:1e:5b:a5:c7:8b:3a:29:e0:5c:87:9f:3b:7d:45:fc root@sssxfs03 (RSA)

sssxfs03 login:

Relax-and-Recover 2.3 / 2017-12-20

Relax-and-Recover comes with ABSOLUTELY NO WARRANTY; for details see
the GNU General Public License at: http://www.gnu.org/licenses/gpl.html

Host sssxfs03 using Backup NETFS and Output ISO
Build date: Thu, 29 Mar 2018 14:41:57 -0400

Red Hat Enterprise Linux
Kernel 3.10.0-514.21.1.el7.ppc64le on an ppc64le

SSH fingerprint: 2048 65:1e:5b:a5:c7:8b:3a:29:e0:5c:87:9f:3b:7d:45:fc root@sssxfs03 (RSA)

sssxfs03 login: root
-bash: cannot set terminal process group (-1): Inappropriate ioctl for device
-bash: no job control in this shell

Welcome to Relax-and-Recover. Run "rear recover" to restore your system !

  • Work-around, if any:

schabrolles commented at 2018-04-01 08:06:

Hi @pspatola101,

/dev/hvc0 is not only used by XEN. It is also the default console for POWER when using HMC virtual console (in PowerVM).

How do you use your system? :

  • PowerNV (BareMetal, no virtualization, with VGA console or IPMI console)
  • PowerVM (Native Power Firmware Virtualisation, with HMC virtual console)
  • KVM on Power (KVM virtualization, virsh console, VNC console)
  • RHV/oVIrt (KVM, virtual console via VNC / Web interface)
  • Nutanix (Hyperconverged based on KVM, virtual console via Prism web interface)

pspatola101 commented at 2018-04-02 14:49:

I'm using the PowerVM.

pspatola101 commented at 2018-04-02 14:57:

Somewhere I read that I need the mingetty package on the linux lpar for the restore to work properly?

schabrolles commented at 2018-04-02 15:24:

@pspatola101, If you are on PowerVM, then you should stay with hvc0 as default console.

If you still have errors with your console, you should also give a try to the current master branch (some patches regarding dbus could help to detect the console during boot on rescue media https://github.com/rear/rear/pull/1743)

git clone http://github.com/rear/rear
cd rear
make install

@jsmeix , What do you think about the following message:

cat /etc/rear/os.conf
cat: /etc/rear/os.conf: No such file or directory
lsb_release -i -s
-bash: lsb_release: command not found

pspatola101 commented at 2018-04-02 16:38:

I downloaded the latest rear and created an rpm package with it:
[root@sssxfs03 rear]# rear -V
Relax-and-Recover 2.3-git.2932.d6865ed.master.changed / 2018-03-23
I also installed the lsb components:
[root@sssxfs03 rear]# rpm -qa |grep lsb-core
redhat-lsb-core-4.1-27.el7.ppc64le

I ran the rear rescue again and recovered the system on another lpar and it worked! Many thanks!

jsmeix commented at 2018-04-03 09:42:

@schabrolles
many thanks for your help with this POWER related issue!

Regarding os.conf see https://github.com/rear/rear/issues/1639

Regarding "lsb_release: command not found":
As far as I know lsb_release is only required by RPM packaging.
This means when one installs the ReaR files not as RPM packages
one can have the ReaR files without lsb_release.
But I think then the SetOSVendorAndVersion() function in
usr/share/rear/lib/config-functions.sh
may error out depending on whether or not
OS_VENDOR and OS_VERSION are already specified
and depending on whether or not the SetOSVendorAndVersion() function
can determine OS_VENDOR and OS_VERSION also without lsb_release.

[Export of Github issue for rear/rear.]