diff options
| -rw-r--r-- | src/gpt-auto-generator/gpt-auto-generator.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/gpt-auto-generator/gpt-auto-generator.c b/src/gpt-auto-generator/gpt-auto-generator.c index 425f5421c..c6a801389 100644 --- a/src/gpt-auto-generator/gpt-auto-generator.c +++ b/src/gpt-auto-generator/gpt-auto-generator.c @@ -446,6 +446,43 @@ static int add_esp(DissectedPartition *p) { } #endif +static int add_root_rw(DissectedPartition *p) { + const char *path; + int r; + + assert(p); + + if (in_initrd()) { + log_debug("In initrd, not generating drop-in for systemd-remount-fs.service."); + return 0; + } + + if (arg_root_rw >= 0) { + log_debug("Parameter ro/rw specified on kernel command line, not generating drop-in for systemd-remount-fs.service."); + return 0; + } + + if (!p->rw) { + log_debug("Root partition marked read-only in GPT partition table, not generating drop-in for systemd-remount-fs.service."); + return 0; + } + + path = strjoina(arg_dest, "/systemd-remount-fs.service.d/50-remount-rw.conf"); + (void) mkdir_parents(path, 0755); + + r = write_string_file(path, + "# Automatically generated by systemd-gpt-generator\n\n" + "[Unit]\n" + "ConditionPathExists=\n\n" /* We need to turn off the ConditionPathExist= in the main unit file */ + "[Service]\n" + "Environment=SYSTEMD_REMOUNT_ROOT_RW=1\n", + WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_NOFOLLOW); + if (r < 0) + return log_error_errno(r, "Failed to write drop-in file %s: %m", path); + + return 0; +} + static int open_parent(dev_t devnum, int *ret) { _cleanup_(sd_device_unrefp) sd_device *d = NULL; const char *name, *devtype, *node; @@ -550,6 +587,12 @@ static int enumerate_partitions(dev_t devnum) { r = k; } + if (m->partitions[PARTITION_ROOT].found) { + k = add_root_rw(m->partitions + PARTITION_ROOT); + if (k < 0) + r = k; + } + return r; } |