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How does the Linux command “mount -a” work?
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After adding a new mount point in /etc/fstab, we usually execute mount -a to reflect the change (if we want to by bypass reboot), and df -kh output shows the new mount point.
How does mount -a work/impact already mounted partitions, which has reference to /etc/fstab file? Does it umount and then mount those partitions or just ignore since it is already mounted?
linux mount partition fstab
edited 5 mins ago
RonJohn
559416
asked 17 hours ago
RaufRauf
4412
add a comment |
After adding a new mount point in /etc/fstab, we usually execute mount -a to reflect the change (if we want to by bypass reboot), and df -kh output shows the new mount point.
How does mount -a work/impact already mounted partitions, which has reference to /etc/fstab file? Does it umount and then mount those partitions or just ignore since it is already mounted?
linux mount partition fstab
edited 5 mins ago
RonJohn
559416
asked 17 hours ago
RaufRauf
4412
add a comment |
After adding a new mount point in /etc/fstab, we usually execute mount -a to reflect the change (if we want to by bypass reboot), and df -kh output shows the new mount point.
How does mount -a work/impact already mounted partitions, which has reference to /etc/fstab file? Does it umount and then mount those partitions or just ignore since it is already mounted?
linux mount partition fstab
edited 5 mins ago
RonJohn
559416
asked 17 hours ago
RaufRauf
4412
After adding a new mount point in /etc/fstab, we usually execute mount -a to reflect the change (if we want to by bypass reboot), and df -kh output shows the new mount point.
How does mount -a work/impact already mounted partitions, which has reference to /etc/fstab file? Does it umount and then mount those partitions or just ignore since it is already mounted?
linux mount partition fstab
linux mount partition fstab
edited 5 mins ago
RonJohn
559416
asked 17 hours ago
RaufRauf
4412
edited 5 mins ago
RonJohn
559416
asked 17 hours ago
RaufRauf
4412
edited 5 mins ago
RonJohn
559416
edited 5 mins ago
RonJohn
559416
edited 5 mins ago
RonJohn
559416
559416
asked 17 hours ago
RaufRauf
4412
asked 17 hours ago
RaufRauf
4412
asked 17 hours ago
RaufRauf
4412
4412
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
It skips ones already mounted.
https://github.com/karelzak/util-linux/blob/master/sys-utils/mount.c#L185-L193
while (mnt_context_next_mount(cxt, itr, &fs, &mntrc, &ignored) == 0) {
const char *tgt = mnt_fs_get_target(fs);
if (ignored) {
if (mnt_context_is_verbose(cxt))
printf(ignored == 1 ? _("%-25s: ignoredn") :
_("%-25s: already mountedn"),
tgt);
answered 17 hours ago
stevesteve
14.6k22956
add a comment |
It will ignore already mounted partitions.
In the same time, you can do a mount -o remount /dev/xxx on a partition already mounted, this won't cause any problem even if users are using this partition
answered 17 hours ago
darxmurfdarxmurf
60711
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
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votes
active
oldest
votes
It skips ones already mounted.
https://github.com/karelzak/util-linux/blob/master/sys-utils/mount.c#L185-L193
while (mnt_context_next_mount(cxt, itr, &fs, &mntrc, &ignored) == 0) {
const char *tgt = mnt_fs_get_target(fs);
if (ignored) {
if (mnt_context_is_verbose(cxt))
printf(ignored == 1 ? _("%-25s: ignoredn") :
_("%-25s: already mountedn"),
tgt);
answered 17 hours ago
stevesteve
14.6k22956
add a comment |
It skips ones already mounted.
https://github.com/karelzak/util-linux/blob/master/sys-utils/mount.c#L185-L193
while (mnt_context_next_mount(cxt, itr, &fs, &mntrc, &ignored) == 0) {
const char *tgt = mnt_fs_get_target(fs);
if (ignored) {
if (mnt_context_is_verbose(cxt))
printf(ignored == 1 ? _("%-25s: ignoredn") :
_("%-25s: already mountedn"),
tgt);
answered 17 hours ago
stevesteve
14.6k22956
add a comment |
It skips ones already mounted.
https://github.com/karelzak/util-linux/blob/master/sys-utils/mount.c#L185-L193
while (mnt_context_next_mount(cxt, itr, &fs, &mntrc, &ignored) == 0) {
const char *tgt = mnt_fs_get_target(fs);
if (ignored) {
if (mnt_context_is_verbose(cxt))
printf(ignored == 1 ? _("%-25s: ignoredn") :
_("%-25s: already mountedn"),
tgt);
answered 17 hours ago
stevesteve
14.6k22956
It skips ones already mounted.
https://github.com/karelzak/util-linux/blob/master/sys-utils/mount.c#L185-L193
while (mnt_context_next_mount(cxt, itr, &fs, &mntrc, &ignored) == 0) {
const char *tgt = mnt_fs_get_target(fs);
if (ignored) {
if (mnt_context_is_verbose(cxt))
printf(ignored == 1 ? _("%-25s: ignoredn") :
_("%-25s: already mountedn"),
tgt);
answered 17 hours ago
stevesteve
14.6k22956
answered 17 hours ago
stevesteve
14.6k22956
answered 17 hours ago
stevesteve
14.6k22956
answered 17 hours ago
stevesteve
14.6k22956
14.6k22956
add a comment |
add a comment |
It will ignore already mounted partitions.
In the same time, you can do a mount -o remount /dev/xxx on a partition already mounted, this won't cause any problem even if users are using this partition
answered 17 hours ago
darxmurfdarxmurf
60711
add a comment |
It will ignore already mounted partitions.
In the same time, you can do a mount -o remount /dev/xxx on a partition already mounted, this won't cause any problem even if users are using this partition
answered 17 hours ago
darxmurfdarxmurf
60711
add a comment |
It will ignore already mounted partitions.
In the same time, you can do a mount -o remount /dev/xxx on a partition already mounted, this won't cause any problem even if users are using this partition
answered 17 hours ago
darxmurfdarxmurf
60711
It will ignore already mounted partitions.
In the same time, you can do a mount -o remount /dev/xxx on a partition already mounted, this won't cause any problem even if users are using this partition
answered 17 hours ago
darxmurfdarxmurf
60711
answered 17 hours ago
darxmurfdarxmurf
60711
answered 17 hours ago
darxmurfdarxmurf
60711
answered 17 hours ago
darxmurfdarxmurf
60711
60711
add a comment |
add a comment |
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