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fstab-generator: use more appropriate checks for swap and device availability

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We always should use the same checks when deciding whether swap support
and mounting of devices is supported. Hence, let's make
fstab-generator's logic more similar to the usual logic we follow:

a) Look for /proc/swaps and no container support before activating
swaps.

b) Look for /sys being writable befire supporting device mounts.
This commit is contained in:
Lennart Poettering 2015-01-05 12:35:08 +01:00
parent 6b3fd9a14d
commit 00b4ffdecb
1 changed files with 6 additions and 1 deletions
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7
src/fstab-generator/fstab-generator.c
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@ -87,6 +87,11 @@ static int add_swap(
assert(what);
assert(me);
if (access("/proc/swaps", F_OK) < 0) {
log_info("Swap not supported, ignoring fstab swap entry for %s.", what);
return 0;
}
if (detect_container(NULL) > 0) {
log_info("Running in a container, ignoring fstab swap entry for %s.", what);
return 0;
@ -355,7 +360,7 @@ static int parse_fstab(bool initrd) {
if (!what)
return log_oom();
if (detect_container(NULL) > 0 && is_device_path(what)) {
if (is_device_path(what) && path_is_read_only_fs("sys") > 0) {
log_info("Running in a container, ignoring fstab device entry for %s.", what);
continue;
}