Arch Linux

Cinbu

Member

Registered: 2016-12-27

Posts: 29

[Solved] sda1 is mounted twice

/dev/sda1 is my boot partition.

I had some problems with it and discovered it is mounted twice:

proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sys on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
dev on /dev type devtmpfs (rw,nosuid,relatime,size=3999108k,nr_inodes=999777,mode=755)
run on /run type tmpfs (rw,nosuid,nodev,relatime,mode=755)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
/dev/sda4 on / type ext4 (rw,relatime,data=ordered)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=24,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=11071)
mqueue on /dev/mqueue type mqueue (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
configfs on /sys/kernel/config type configfs (rw,relatime)
tmpfs on /tmp type tmpfs (rw,relatime,size=8388608k)
/dev/sda1 on /boot type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro)
/dev/sda1 on /boot/efi type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=801092k,mode=700,uid=1000,gid=10)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=10)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)

It is mounted once as /boot and once as /boot/efi.
I don't understand why this is happening? Arch is booting properly, but I still want to fix it. Or is this normal behaviour? Here is the output of lsblk:

NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 238.5G  0 disk 
├─sda1   8:1    0   260M  0 part /boot/efi
├─sda2   8:2    0    16M  0 part 
├─sda3   8:3    0  65.8G  0 part 
├─sda4   8:4    0 146.5G  0 part /
├─sda5   8:5    0    25G  0 part 
└─sda6   8:6    0  1000M  0 part 

I'm happy about any advice

Last edited by Cinbu (2018-02-06 13:02:43)

headkase

Member

Registered: 2011-12-06

Posts: 2,005

Re: [Solved] sda1 is mounted twice

Please post the contents of "/etc/fstab":

https://wiki.archlinux.org/index.php/Fstab

Cinbu

Member

Registered: 2016-12-27

Posts: 29

Re: [Solved] sda1 is mounted twice

Here is the content of /etc/fstab

# /dev/sda4
UUID=b0c31b50-c336-4e3e-866b-be816a2fa200	/         	ext4      	rw,relatime,data=ordered	0 1


UUID=C675-4CC5	/boot	vfat	defaults	0	2
UUID=C675-4CC5	/boot/efi	vfat	defaults	0	1

Thank you headkase, that was quite obvious. I don't know how two entries came there. I guess that must have happened when I tried out a few things.

headkase

Member

Registered: 2011-12-06

Posts: 2,005

Re: [Solved] sda1 is mounted twice

Thank you headkase, that was quite obvious. I don't know how two entries came there. I guess that must have happened when I tried out a few things.

Right on, you're welcome.