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Fri, 23 Dec 2022 09:55:42 +0100 From: Henning Schild To: CC: Henning Schild , Joe MacDonald Subject: [PATCH v7 2/6] expand-on-first-boot: support resizing a btrfs Date: Fri, 23 Dec 2022 09:55:25 +0100 Message-ID: <20221223085529.8835-3-henning.schild@siemens.com> X-Mailer: git-send-email 2.38.2 In-Reply-To: <20221223085529.8835-1-henning.schild@siemens.com> References: <20221223085529.8835-1-henning.schild@siemens.com> MIME-Version: 1.0 X-Originating-IP: [167.87.23.195] X-ClientProxiedBy: DEMCHDC8WAA.ad011.siemens.net (139.25.226.104) To DEMCHDC8WAA.ad011.siemens.net (139.25.226.104) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DB5EUR01FT080:EE_|VI1PR10MB7854:EE_ X-MS-Office365-Filtering-Correlation-Id: e81a1e47-831a-4783-69c8-08dae4c3799a X-LD-Processed: 38ae3bcd-9579-4fd4-adda-b42e1495d55a,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:194.138.21.74;CTRY:DE;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:hybrid.siemens.com;PTR:hybrid.siemens.com;CAT:NONE;SFS:(13230022)(4636009)(136003)(376002)(396003)(39860400002)(346002)(451199015)(40470700004)(46966006)(36840700001)(40480700001)(316002)(6916009)(36756003)(26005)(186003)(40460700003)(7636003)(47076005)(41300700001)(8936002)(82960400001)(356005)(7596003)(86362001)(5660300002)(83380400001)(44832011)(2616005)(1076003)(82740400003)(956004)(336012)(82310400005)(2906002)(36860700001)(16526019)(70206006)(70586007)(8676002)(4326008)(478600001)(54906003)(6666004)(17423001);DIR:OUT;SFP:1101; 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dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=siemens.com Precedence: list Mailing-list: list isar-users@googlegroups.com; contact isar-users+owners@googlegroups.com List-ID: X-Spam-Checked-In-Group: isar-users@googlegroups.com X-Google-Group-Id: 914930254986 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on shymkent.ilbers.de X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= This adds support for resizing btrfs filesystems if they are in that last partition. It also prepares for potentially other filesystems to come in the future by introducing a switch-case. The mounting logic is taken from the systemd-growfs patches we had to revert again. Some filesystems need to online for resizing, but in order to find the filesystem of a partition (without udev) mounting it and letting the kernel detect seems a good idea. Suggested-by: Joe MacDonald Signed-off-by: Henning Schild --- ...oot_1.3.bb => expand-on-first-boot_1.4.bb} | 0 .../files/expand-last-partition.sh | 31 ++++++++++++++++--- 2 files changed, 27 insertions(+), 4 deletions(-) rename meta/recipes-support/expand-on-first-boot/{expand-on-first-boot_1.3.bb => expand-on-first-boot_1.4.bb} (100%) diff --git a/meta/recipes-support/expand-on-first-boot/expand-on-first-boot_1.3.bb b/meta/recipes-support/expand-on-first-boot/expand-on-first-boot_1.4.bb similarity index 100% rename from meta/recipes-support/expand-on-first-boot/expand-on-first-boot_1.3.bb rename to meta/recipes-support/expand-on-first-boot/expand-on-first-boot_1.4.bb diff --git a/meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh b/meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh index 93eddda2a3b7..7d658864924b 100755 --- a/meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh +++ b/meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh @@ -62,8 +62,31 @@ if grep -q x-systemd.growfs /etc/fstab; then exit 0 fi -# Do not fail resize2fs if no mtab entry is found, e.g., -# when using systemd mount units. -export EXT2FS_NO_MTAB_OK=1 +# some filesystems need to be mounted i.e. btrfs, but mounting also helps +# detect the filesystem type without having to wait for udev +# mount $LAST_PART out of tree, so we won't conflict with other mounts +MOUNT_POINT=$(mktemp -d -p "" "$(basename "$0").XXXXXXXXXX") +mount "${LAST_PART}" "${MOUNT_POINT}" -resize2fs "${LAST_PART}" +ret=0 +# Determine the filesystem type and perform the appropriate resize function +FS_TYPE=$(findmnt -fno FSTYPE "${MOUNT_POINT}" ) +case ${FS_TYPE} in +ext*) + # Do not fail resize2fs if no mtab entry is found, e.g., + # when using systemd mount units. + export EXT2FS_NO_MTAB_OK=1 + resize2fs "${LAST_PART}" + ;; +btrfs) + btrfs filesystem resize max "${MOUNT_POINT}" + ;; +*) + echo "Unrecognized filesystem type ${FS_TYPE} - no resize performed" + ret=1 + ;; +esac + +umount "${MOUNT_POINT}" +rmdir "${MOUNT_POINT}" +exit $ret