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repart: use /sysusr/ as --root= default in initrd, if mounted

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This commit is contained in:
Lennart Poettering 2021-04-07 11:18:43 +02:00
parent a73b2ad041
commit 8f47e32a3e
1 changed files with 12 additions and 2 deletions
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14
src/partition/repart.c
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@ -4318,8 +4318,18 @@ static int parse_argv(int argc, char *argv[]) {
if (arg_image && arg_root)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify either --root= or --image=, the combination of both is not supported.");
else if (!arg_image && !arg_root && in_initrd()) {
/* Default to operation on /sysroot when invoked in the initrd! */
arg_root = strdup("/sysroot");
/* By default operate on /sysusr/ or /sysroot/ when invoked in the initrd. We prefer the
* former, if it is mounted, so that we have deterministic behaviour on systems where /usr/
* is vendor-supplied but the root fs formatted on first boot. */
r = path_is_mount_point("/sysusr/usr", NULL, 0);
if (r <= 0) {
if (r < 0 && r != -ENOENT)
log_debug_errno(r, "Unable to determine whether /sysusr/usr is a mount point, assuming it is not: %m");
arg_root = strdup("/sysroot");
} else
arg_root = strdup("/sysusr");
if (!arg_root)
return log_oom();
}