#3141 Issue open: /sbin/mount.nfs Binary not available during disaster recovery

StefanFromMunich opened issue at 2024-01-29 08:05:

We have created the backup file rear-oralin1.ios. However, this is not suitable for disaster recovery because
unfortunately, the rear-oralin1.ios does not contain the required nfs-utils package to carry out the mount on the NAS in order to get to the backup.tar.gz.
We have already tried to generate a new ISO containing the package (added line PACKAGES+="nfs-utlis" in /etc/rear/local.conf),
but this doesn't seem to have worked yet because the /sbin/mount.nfs binary is still missing.

What else do we need to configure so that /sbin/mount.nfs binary is available during disaster recovery?

StefanFromMunich commented at 2024-01-29 13:38:

I send now the complete configuration of the /etc/rear/local.conf file.

OUTPUT=ISO
OUTPUT_URL=file:///mnt/rescue_system/
BACKUP=NETFS
BACKUP_URL=file:///rear/
PACKAGES+=" nfs-utils"

Perhaps it helps to find the missing entry in this file.

StefanFromMunich commented at 2024-01-30 10:20:

I am now sending additional information that should help solve the problem:

  • ReaR version ("/usr/sbin/rear -V"):
    Relax-and-Recover 2.6 / 2020-06-17

  • OS version ("cat /etc/os-release" or "lsb_release -a" or "cat /etc/rear/os.conf"):
    NAME="Oracle Linux Server"
    VERSION="8.5"
    ID="ol"
    ID_LIKE="fedora"
    VARIANT="Server"
    VARIANT_ID="server"
    VERSION_ID="8.5"
    PLATFORM_ID="platform:el8"
    PRETTY_NAME="Oracle Linux Server 8.5"
    ANSI_COLOR="0;31"
    CPE_NAME="cpe:/o:oracle:linux:8:5:server"
    HOME_URL="https://linux.oracle.com/"
    BUG_REPORT_URL="https://bugzilla.oracle.com/"

ORACLE_BUGZILLA_PRODUCT="Oracle Linux 8"
ORACLE_BUGZILLA_PRODUCT_VERSION=8.5
ORACLE_SUPPORT_PRODUCT="Oracle Linux"
ORACLE_SUPPORT_PRODUCT_VERSION=8.5

  • ReaR configuration files ("cat /etc/rear/site.conf" and/or "cat /etc/rear/local.conf"):

This file etc/rear/local.conf is intended for the user's

manual configuration of Relax-and-Recover (ReaR).

For configuration through packages and other automated means

we recommend a separated file named site.conf next to this file

and leave local.conf as is (ReaR upstream will never ship a site.conf).

The default OUTPUT=ISO creates the ReaR rescue medium as ISO image.

You need to specify your particular backup and restore method for your data

as the default BACKUP=REQUESTRESTORE does not really do that (see "man rear").

Configuration variables are documented in /usr/share/rear/conf/default.conf

and the examples in /usr/share/rear/conf/examples/ can be used as templates.

ReaR reads the configuration files via the bash builtin command 'source'

so bash syntax like VARIABLE="value" (no spaces at '=') is mandatory.

Because 'source' executes the content as bash scripts you can run commands

within your configuration files, in particular commands to set different

configuration values depending on certain conditions as you need like

CONDITION_COMMAND && VARIABLE="special_value" || VARIABLE="usual_value"

but that means CONDITION_COMMAND gets always executed when 'rear' is run

so ensure nothing can go wrong if you run commands in configuration files.

OUTPUT=ISO
OUTPUT_URL=file:///mnt/rescue_system/
BACKUP=NETFS
BACKUP_URL=file:///rear/
PACKAGES+=" nfs-utils"

  • Hardware vendor/product (PC or PowerNV BareMetal or ARM) or VM (KVM guest or PowerVM LPAR):
    PC

  • System architecture (x86 compatible or PPC64/PPC64LE or what exact ARM device):
    x86

  • Firmware (BIOS or UEFI or Open Firmware) and bootloader (GRUB or ELILO or Petitboot):
    UEFI

  • Storage (local disk or SSD) and/or SAN (FC or iSCSI or FCoE) and/or multipath (DM or NVMe):
    SSD

  • Storage layout ("lsblk -ipo NAME,KNAME,PKNAME,TRAN,TYPE,FSTYPE,LABEL,SIZE,MOUNTPOINT"):
    NAME KNAME PKNAME TRAN TYPE FSTYPE LABEL SIZE MOUNTPOINT
    /dev/sda /dev/sda sata disk isw_raid_member 447,1G
    |-/dev/sda1 /dev/sda1 /dev/sda part vfat 600M
    |-/dev/sda2 /dev/sda2 /dev/sda part xfs 1G
    |-/dev/sda3 /dev/sda3 /dev/sda part LVM2_member 154G
    |-/dev/sda4 /dev/sda4 /dev/sda part LVM2_member 269,2G
    -/dev/md126 /dev/md126 /dev/sda raid1 424,8G |-/dev/md126p1 /dev/md126p1 /dev/md126 md vfat 600M /boot/efi |-/dev/md126p2 /dev/md126p2 /dev/md126 md xfs 1G /boot |-/dev/md126p3 /dev/md126p3 /dev/md126 md LVM2_member 154G | |-/dev/mapper/ol-root /dev/dm-0 /dev/md126p3 lvm xfs 30G / | |-/dev/mapper/ol-swap /dev/dm-1 /dev/md126p3 lvm swap 24G [SWAP] |-/dev/mapper/ol-u01 /dev/dm-11 /dev/md126p3 lvm xfs 100G /u01
    -/dev/md126p4 /dev/md126p4 /dev/md126 md LVM2_member 269,2G /dev/sdb /dev/sdb sata disk isw_raid_member 447,1G |-/dev/sdb1 /dev/sdb1 /dev/sdb part vfat 600M |-/dev/sdb2 /dev/sdb2 /dev/sdb part xfs 1G |-/dev/sdb3 /dev/sdb3 /dev/sdb part LVM2_member 154G |-/dev/sdb4 /dev/sdb4 /dev/sdb part LVM2_member 269,2G-/dev/md126 /dev/md126 /dev/sdb raid1 424,8G
    |-/dev/md126p1 /dev/md126p1 /dev/md126 md vfat 600M /boot/efi
    |-/dev/md126p2 /dev/md126p2 /dev/md126 md xfs 1G /boot
    |-/dev/md126p3 /dev/md126p3 /dev/md126 md LVM2_member 154G
    | |-/dev/mapper/ol-root /dev/dm-0 /dev/md126p3 lvm xfs 30G /
    | |-/dev/mapper/ol-swap /dev/dm-1 /dev/md126p3 lvm swap 24G [SWAP]
    | -/dev/mapper/ol-u01 /dev/dm-11 /dev/md126p3 lvm xfs 100G /u01-/dev/md126p4 /dev/md126p4 /dev/md126 md LVM2_member 269,2G
    /dev/nvme0n1 /dev/nvme0n1 nvme disk 5,8T
    -/dev/nvme0n1p1 /dev/nvme0n1p1 /dev/nvme0n1 nvme part LVM2_member 5,8T |-/dev/mapper/vg_oracle-u02_zvk_muc /dev/dm-2 /dev/nvme0n1p1 lvm ext4 2,5T /u02/oradata/ZVK_MUC |-/dev/mapper/vg_oracle-u02_zvk_da /dev/dm-3 /dev/nvme0n1p1 lvm ext4 1000G /u02/oradata/ZVK_DA |-/dev/mapper/vg_oracle-u02_bsv /dev/dm-4 /dev/nvme0n1p1 lvm ext4 1000G /u02/oradata/BSV |-/dev/mapper/vg_oracle-u02_kvv /dev/dm-5 /dev/nvme0n1p1 lvm ext4 500G /u02/oradata/KVV-/dev/mapper/vg_oracle-u02_daisy /dev/dm-6 /dev/nvme0n1p1 lvm ext4 500G /u02/oradata/DAISY
    /dev/nvme1n1 /dev/nvme1n1 nvme disk 5,8T
    -/dev/nvme1n1p1 /dev/nvme1n1p1 /dev/nvme1n1 nvme part LVM2_member 5,8T |-/dev/mapper/vg_oracle-u02_vip /dev/dm-7 /dev/nvme1n1p1 lvm ext4 500G /u02/oradata/VIP |-/dev/mapper/vg_oracle-u02_vbo--portal /dev/dm-8 /dev/nvme1n1p1 lvm ext4 500G /u02/oradata/VBO-Portal |-/dev/mapper/vg_oracle-u02_bsv--portal /dev/dm-9 /dev/nvme1n1p1 lvm ext4 500G /u02/oradata/BSV-Portal-/dev/mapper/vg_oracle-u02_vbo /dev/dm-10 /dev/nvme1n1p1 lvm ext4 500G /u02/oradata/VBO
    /dev/nvme3n1 /dev/nvme3n1 nvme disk 2,9T
    /dev/nvme4n1 /dev/nvme4n1 nvme disk 2,9T
    /dev/nvme5n1 /dev/nvme5n1 nvme disk 2,9T
    /dev/nvme2n1 /dev/nvme2n1 nvme disk 2,9T
    `-/dev/nvme2n1p1 /dev/nvme2n1p1 /dev/nvme2n1 nvme part ext4 2,9T /u03/flashdata/ZVK_MUC
    [

StefanFromMunich commented at 2024-01-31 13:29:

Now I send the configuration of the target system. So the system in which the backup was supposed to be restored and then failed:

ReaR version ("/usr/sbin/rear -V"):
Relax-and-Recover 2.6 / 2020-06-17

OS version ("cat /etc/os-release" or "lsb_release -a" or "cat /etc/rear/os.conf"):
NAME="Oracle Linux Server"
VERSION="8.5"
ID="ol"
ID_LIKE="fedora"
VARIANT="Server"
VARIANT_ID="server"
VERSION_ID="8.5"
PLATFORM_ID="platform:el8"
PRETTY_NAME="Oracle Linux Server 8.5"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:oracle:linux:8:5:server"
HOME_URL="https://linux.oracle.com/"
BUG_REPORT_URL="https://bugzilla.oracle.com/"

ORACLE_BUGZILLA_PRODUCT="Oracle Linux 8"
ORACLE_BUGZILLA_PRODUCT_VERSION=8.5
ORACLE_SUPPORT_PRODUCT="Oracle Linux"
ORACLE_SUPPORT_PRODUCT_VERSION=8.5

ReaR configuration files ("cat /etc/rear/site.conf" and/or "cat /etc/rear/local.conf"):
OUTPUT=ISO
OUTPUT_URL=file:///mnt/rescue_system/
BACKUP=NETFS
BACKUP_URL=file:///rear/

Hardware vendor/product (PC or PowerNV BareMetal or ARM) or VM (KVM guest or PowerVM LPAR):
PC

System architecture (x86 compatible or PPC64/PPC64LE or what exact ARM device):
x86

Firmware (BIOS or UEFI or Open Firmware) and bootloader (GRUB or ELILO or Petitboot):
UEFI

Storage (local disk or SSD) and/or SAN (FC or iSCSI or FCoE) and/or multipath (DM or NVMe):
SAN

Storage layout ("lsblk -ipo NAME,KNAME,PKNAME,TRAN,TYPE,FSTYPE,LABEL,SIZE,MOUNTPOINT"):
NAME KNAME PKNAME TRAN TYPE FSTYPE LABEL SIZE MOUNTPOINT
/dev/sda /dev/sda disk 500G
|-/dev/sda1 /dev/sda1 /dev/sda part vfat 4G /boot/efi
|-/dev/sda2 /dev/sda2 /dev/sda part xfs 4G /boot
-/dev/sda3 /dev/sda3 /dev/sda part LVM2_member 492G |-/dev/mapper/ol_svl00048-root /dev/dm-0 /dev/sda3 lvm xfs 460G /-/dev/mapper/ol_svl00048-swap /dev/dm-1 /dev/sda3 lvm swap 32G [SWAP]
/dev/sr0 /dev/sr0 sata rom 1024M
/dev/sr1 /dev/sr1 sata rom 1024M

[Export of Github issue for rear/rear.]