Hello I have four unit files.
1. xxx.target 2. tmp-testy.mount 3. tmp-testy_ro.mount 4. temp-testy_rw.mount I want the xxx.target to automatically start the three .mount unit files on boot. Item, 2. tmp-testy is a union mount of the two unit files 3. and 4. In order to get this to work, I have to specify all three .mount files in the requires= and after= sections in the .target unit file. I was thinking that I would only need to specify item 2. in the xxx.target unit file and that item 2. would specify it needed item 3 and 4. However this does not work. Here are the contents of the four unit files, at the end is a unit file as it works and how I thought it would work, but alas is does not. ================================================ [root@xxx ~]# cat /lib/systemd/system/tmp-testy.mount [Unit] Description=The /tmp/testy unionfs Directory Before=local-fs.target [Mount] What=funionfs#none Where=/tmp/testy Type=fuse FsckPassNo=0 Options=dirs=/tmp/testy_ro=RO:/tmp/testy_rw,allow_other,nonempty Requires=tmp-testy_ro.mount tmp-testy_rw.mount After=tmp-testy_ro.mount tmp-testy_rw.mount ================================================= [root@xxx ~]# cat /lib/systemd/system/tmp-testy_ro.mount [Unit] Description=Mount control of testy_ro Directory Before=tmp-testy.mount [Mount] Where=/tmp/testy_ro What=/tmp/mnt/hp_tools/Hewlett-Packard/HV/testy-ro.bin Options=loop,ro ================================================= [root@xxxx ~]# cat /lib/systemd/system/tmp-testy_rw.mount [Unit] Description=Mount control of testy_rw Directory Before=tmp-testy.mount [Mount] Where=/tmp/testy_rw What=tmpfs Type=tmpfs Options=size=1M,nr_inodes=1k,mode=755 ================================================= This works [root@xxxx ~]# cat /lib/systemd/system/xxx.target [Unit] Description=xxxxx System Documentation=man:systemd.special(7) Requires=tmp-testy_rw.mount tmp-testy_ro.mount tmp-testy.mount etc.mount Wants=sshd.service After=tmp-testy_rw.mount tmp-testy_ro.mount tmp-testy.mount etc.mount RefuseManualStart=yes [root@xxx ~]# This does not. It will mount /tmp/testy but /tmp/testy_ro and /tmp/testy_rw will not be mounted. [root@xxxx ~]# cat /lib/systemd/system/xxx2.target [Unit] Description=xxxxx System Documentation=man:systemd.special(7) Requires=tmp-testy.mount etc.mount Wants=sshd.service After=tmp-testy.mount etc.mount RefuseManualStart=yes [root@xxx ~]# -- John F. Davis 6 Kandes Court Durham, NC 27713 919-888-8358 独树一帜
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