starlingx/utilities
Code Issues Proposed changes

Provide utility script is-rootdisk-device.sh

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This provides a utility script to determine which disk contains the root
filesystem. This can also be used as a helper function for io-scheduler
udev rules that require specific configuration for root disk.

Example usage:
/usr/local/bin/is-rootdisk-device.sh
ROOTDISK_DEVICE=sda

/usr/local/bin/is-rootdisk-device.sh /dev/sda
ROOTDISK_DEVICE=sda

/usr/local/bin/is-rootdisk-device.sh /dev/sdb
(i.e., no output)

Partial-Bug: 1927515
Signed-off-by: Jim Gauld <james.gauld@windriver.com>
Change-Id: Ib0d4a161a407b08d294c5ff9aa0b7590961e18c9
This commit is contained in:
Jim Gauld 2021-05-06 11:58:34 -04:00
parent d665a1b373
commit 6045b1b8a0
2 changed files with 30 additions and 0 deletions
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2
utilities/platform-util/centos/platform-util.spec
View File

@ -60,6 +60,7 @@ install -d %{buildroot}%{local_bindir}
install %{_buildsubdir}/scripts/tc_setup.sh %{buildroot}%{local_bindir}
install %{_buildsubdir}/scripts/remotelogging_tc_setup.sh %{buildroot}%{local_bindir}
install %{_buildsubdir}/scripts/connectivity_test %{buildroot}%{local_bindir}
install -m 555 %{_buildsubdir}/scripts/is-rootdisk-device.sh %{buildroot}%{local_bindir}
install -m 555 %{_buildsubdir}/scripts/update-iso.sh %{buildroot}%{local_bindir}
install -m 555 %{_buildsubdir}/scripts/gen-bootloader-iso.sh %{buildroot}%{local_bindir}
install -m 555 %{_buildsubdir}/scripts/stx-iso-utils.sh %{buildroot}%{local_bindir}
@ -95,6 +96,7 @@ systemctl enable opt-platform.service
%{local_bindir}/tc_setup.sh
%{local_bindir}/remotelogging_tc_setup.sh
%{local_bindir}/connectivity_test
%{local_bindir}/is-rootdisk-device.sh
%{local_bindir}/set_keystone_user_option.sh
%{local_sbindir}/patch-restart-mtce
%{local_sbindir}/patch-restart-processes

28
utilities/platform-util/scripts/is-rootdisk-device.sh Executable file
View File

@ -0,0 +1,28 @@
#!/bin/bash
#
# Copyright (c) 2021 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
# Usage:
# is-rootdisk-device <device>
#
# If no arguments are provided, this shows which disk contains the
# root filesystem. If the optional device parameter is specified,
# output is only generated when the device matches the root disk.
dev=$1
rootdev=$(lsblk --ascii -oPKNAME -n $(findmnt -n -T / -o SOURCE))
if [ $# -eq 0 ]; then
echo "ROOTDISK_DEVICE=${rootdev}"
else
if [ "${dev}" == "/dev/${rootdev}" ] || \
[ "/dev/${dev}" == "/dev/${rootdev}" ]; then
echo "ROOTDISK_DEVICE=${rootdev}"
else
exit 1
fi
fi
exit 0