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| author | Lennart Poettering <lennart@poettering.net> | 2023-02-20 17:25:14 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2023-02-21 18:19:38 +0100 |
| commit | c56be2c294f55545ea34417a2ec4f6ad2cd1df6f (patch) | |
| tree | 93cee6bbda623c51da5ff8d4c9ea16cf776c6a90 /src/boot/bootctl.h | |
| parent | b469b969f30dbb4d4aeeccab79ec8f3782e769aa (diff) | |
| download | systemd-c56be2c294f55545ea34417a2ec4f6ad2cd1df6f.tar.gz | |
bootctl: add new --print-root-device option
We already have this nice code in system that determines the block
device backing the root file system, but it's only used internally in
systemd-gpt-generator. Let's make this more accessible and expose it
directly in bootctl.
It doesn't fit immediately into the topic of bootctl, but I think it's
close enough and behaves very similar to the existing "bootctl
--print-boot-path" and "--print-esp-path" tools.
If --print-root-device (or -R) is specified once, will show the block device
backing the root fs, and if specified twice (probably easier: -RR) it
will show the whole block device that block device belongs to in case it
is a partition block device.
Suggested use:
# cfdisk `bootctl -RR`
To get access to the partition table, behind the OS install, for
whatever it might be.
Diffstat (limited to 'src/boot/bootctl.h')
| -rw-r--r-- | src/boot/bootctl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/boot/bootctl.h b/src/boot/bootctl.h index 311b954c2c..9012bf932b 100644 --- a/src/boot/bootctl.h +++ b/src/boot/bootctl.h @@ -24,6 +24,7 @@ extern char *arg_esp_path; extern char *arg_xbootldr_path; extern bool arg_print_esp_path; extern bool arg_print_dollar_boot_path; +extern unsigned arg_print_root_device; extern bool arg_touch_variables; extern PagerFlags arg_pager_flags; extern bool arg_graceful; |