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Ensure that /dev exists in the container root filesystem

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If booting a container with a root FS that isn't the host's
root, we must ensure that the /dev mount point exists.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2013-08-13 14:58:45 +01:00
parent 63ba687f2b
commit c13a2c282b
1 changed files with 13 additions and 3 deletions
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16
src/lxc/lxc_container.c
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@ -868,7 +868,7 @@ static int lxcContainerMountProcFuse(virDomainDefPtr def ATTRIBUTE_UNUSED,
static int lxcContainerMountFSDev(virDomainDefPtr def,
const char *stateDir)
{
int ret;
int ret = -1;
char *path = NULL;
VIR_DEBUG("Mount /dev/ stateDir=%s", stateDir);
@ -877,14 +877,24 @@ static int lxcContainerMountFSDev(virDomainDefPtr def,
stateDir, def->name)) < 0)
return ret;
VIR_DEBUG("Tring to move %s to /dev", path);
if (virFileMakePath("/dev") < 0) {
virReportSystemError(errno, "%s",
_("Cannot create /dev"));
goto cleanup;
}
if ((ret = mount(path, "/dev", NULL, MS_MOVE, NULL)) < 0) {
VIR_DEBUG("Trying to move %s to /dev", path);
if (mount(path, "/dev", NULL, MS_MOVE, NULL) < 0) {
virReportSystemError(errno,
_("Failed to mount %s on /dev"),
path);
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(path);
return ret;
}