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Check if /sys exists and only mount if /sys isn't already mounted

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Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson
2020-04-26 15:04:56 +02:00
parent 2f87c10cf1
commit e16a6ad4f0
1 changed files with 13 additions and 5 deletions
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src/finit.c
+13 -5
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@@ -290,7 +290,7 @@ int main(int argc, char *argv[])
uev_ctx_t loop;
char cmd[256];
char *path;
int rc;
int rc = 0;
/*
* finit/init/telinit client tool uses /dev/initctl pipe
@@ -352,8 +352,6 @@ int main(int argc, char *argv[])
*/
if (mount("none", "/proc", "proc", 0, NULL))
_pe("Failed mounting /proc");
if (mount("none", "/sys", "sysfs", 0, NULL))
_pe("Failed mounting /sys");
if (fisdir("/proc/bus/usb"))
mount("none", "/proc/bus/usb", "usbfs", 0, NULL);
@@ -404,7 +402,7 @@ int main(int argc, char *argv[])
if (!rc)
print(1, "Cannot remount / as read-write, fsck failed before");
else
run_interactive("mount -n -o remount,rw /", "Remounting / as read-write");
rc = run_interactive("mount -n -o remount,rw /", "Remounting / as read-write");
}
break;
}
@@ -416,10 +414,20 @@ int main(int argc, char *argv[])
* XXX: Untested, in the initramfs age we should
* probably use switch_root instead.
*/
mount(SYSROOT, "/", NULL, MS_MOVE, NULL);
rc = mount(SYSROOT, "/", NULL, MS_MOVE, NULL);
#endif
}
/* Create /sys if missing, some systems don't include it in their rootfs skeleton */
if (!rc && !fisdir("/sys"))
mkdir("/sys", 0755);
/* Only mount /sys if it's not already mounted */
if (!fismnt("/sys") && mount("none", "/sys", "sysfs", 0, NULL)) {
print(1, "Cannot mount /sys, your system may behave unusually");
_pe("Failed mounting /sys");
}
/*
* Initialize .conf system and load static /etc/finit.conf
* Also initializes global_rlimit[] for udevd, below.