Crate bootc_internal_blockdev 

Structs

Device

DevicesOutput 🔒

LoopbackCleanupHandle 🔒

Handle to manage the cleanup helper process for loopback devices

LoopbackDevice

Constants

BIOS_BOOT

BIOS boot partition type GUID for GPT

ESP

EFI System Partition (ESP) for UEFI boot on GPT

ESP_ID_MBR

MBR partition type IDs that indicate an EFI System Partition. 0x06 is FAT16 (used as ESP on some MBR systems), 0xEF is the explicit EFI System Partition type. Refer to https://en.wikipedia.org/wiki/Partition_type

ZFS_SUPER_MAGIC 🔒

The statfs magic of ZFS (ZFS_SUPER_MAGIC in OpenZFS), which libc lacks.

Functions

blkid_probe 🔒

Probe a device with blkid -p and return all discovered properties as key-value pairs.

have_udev 🔒

Check whether the udev database is accessible (cached for the process lifetime).

is_block_backed 🔒

Whether a filesystem with the given st_dev and statfs magic is backed by a block device.

is_dir_backing_device_ro

Determine whether the block device backing the filesystem mounted at the given directory is physically read-only.

list_dev

list_dev_by_dir

List the device containing the filesystem mounted at the given directory.

list_dev_by_dir_optional

List the device containing the filesystem mounted at the given directory, or None if that filesystem is not backed by a block device (such as virtiofs, NFS, tmpfs or overlayfs).

list_dev_for_zfs_dataset 🔒

parse_partition_number_from_suffix 🔒

Extract a partition number by stripping the parent device path from the ESP partition device path, then skipping any non-digit separator characters.

parse_size_mib

Parse a string into mibibytes

run_loopback_cleanup_helper

Main function for the loopback cleanup helper process This function does not return - it either exits normally or via signal