On Friday 14 September 2018 20:56:28 Gene Heskett wrote: > On Friday 14 September 2018 20:16:32 Alan Corey wrote: > > My /etc/fstab just has > > /var/swap2 none swap sw 0 0 > > That's for a swap file which was made by dding 0s into it, then > > running mkswap. > > > > You'd replace /var/swap2 with /dev/sda2 > > > > Sounds like you're just not loading it from your fstab. Should load > > every boot. Nothing new or tricky there. > > I found an error in the line above that in fstab, # it out. > Using htop as a swap monitor I can make the swap come and go. > > Heres the fstab now: > > proc /proc proc defaults > 0 0 PARTUUID=4fb6ef8f-01 /boot vfat > defaults 0 2 PARTUUID=4fb6ef8f-02 / > ext4 defaults,noatime 0 1 # but lets see if a swap can be > made to work > PARTUUID="000ba889-02" none swap > defaults,nofail 0 0 #/dev/sda2 none swap sw,nofail > # a swapfile is not a swap partition, no line here > # use dphys-swapfile swap[on|off] for that > LABEL=bootpi /media/boot vfat defaults > 0 2 LABEL=workpi1 /media/slash ext4 > defaults,noatime 0 1 LABEL=backuppi /media/backupsd > ext4 defaults,noatime 0 1 LABEL=workpi120 > /media/work ext4 defaults,noatime 0 1 > > But it doesn't show in a mount, nor does it show in a cat /etc/mtab: > > /dev/root / ext4 rw,noatime,data=ordered 0 0 > devtmpfs /dev devtmpfs > rw,relatime,size=468264k,nr_inodes=117066,mode=755 0 0 sysfs /sys > sysfs rw,nosuid,nodev,noexec,relatime 0 0 > proc /proc proc rw,relatime 0 0 > tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0 > devpts /dev/pts devpts > rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 tmpfs /run > tmpfs rw,nosuid,nodev,mode=755 0 0 > tmpfs /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0 > tmpfs /sys/fs/cgroup tmpfs ro,nosuid,nodev,noexec,mode=755 0 0 > cgroup /sys/fs/cgroup/systemd cgroup > rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/syste >md-cgroups-agent,name=systemd 0 0 cgroup /sys/fs/cgroup/cpu,cpuacct > cgroup rw,nosuid,nodev,noexec,relatime,cpu,cpuacct 0 0 cgroup > /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0 > cgroup /sys/fs/cgroup/memory cgroup > rw,nosuid,nodev,noexec,relatime,memory 0 0 cgroup > /sys/fs/cgroup/devices cgroup rw,nosuid,nodev,noexec,relatime,devices > 0 0 cgroup /sys/fs/cgroup/freezer cgroup > rw,nosuid,nodev,noexec,relatime,freezer 0 0 cgroup > /sys/fs/cgroup/net_cls cgroup rw,nosuid,nodev,noexec,relatime,net_cls > 0 0 tmpfs /etc/machine-id tmpfs ro,mode=755 0 0 > systemd-1 /proc/sys/fs/binfmt_misc autofs > rw,relatime,fd=22,pgrp=1,timeout=300,minproto=5,maxproto=5,direct 0 0 > debugfs /sys/kernel/debug debugfs rw,relatime 0 0 > mqueue /dev/mqueue mqueue rw,relatime 0 0 > configfs /sys/kernel/config configfs rw,relatime 0 0 > fusectl /sys/fs/fuse/connections fusectl rw,relatime 0 0 > /dev/mmcblk0p1 /boot vfat > rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortna >me=mixed,errors=remount-ro 0 0 /dev/sda1 /media/boot vfat > rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortna >me=mixed,errors=remount-ro 0 0 /dev/sdb1 /media/backupsd ext4 > rw,noatime,data=ordered 0 0 > /dev/sda3 /media/slash ext4 rw,noatime,stripe=8191,data=ordered 0 0 > /dev/sdb2 /media/work ext4 rw,noatime,data=ordered 0 0 > tmpfs /run/user/1000 tmpfs > rw,nosuid,nodev,relatime,size=94520k,mode=700,uid=1000,gid=1000 0 0 > gvfsd-fuse /run/user/1000/gvfs fuse.gvfsd-fuse > rw,nosuid,nodev,relatime,user_id=1000,group_id=1000 0 0 > > Which seems to be way too complex, but htop says its there. But I did > a swapoff -a then a sudo mkswap .dev/sda2 which reported: > pi@picnc:~ $ sudo mkswap /dev/sda2 > mkswap: /dev/sda2: warning: wiping old swap signature. > Setting up swapspace version 1, size = 10239996 KiB > no label, UUID=7b06d9bc-18f2-4c25-957d-f426141664b3 > > So I copied that UUID into /etc/fstab, making this line: > UUID=7b06d9bc-18f2-4c25-957d-f426141664b3 swap defaults,nofail 0 0 > But now its not working at all. What did I screw up? > > I rebooted, and its found a 99meg swapfile, probably on the 32GB u-sd, > but not /dev/sda2 ??? > > Call me puzzled.
Got it, mount point was supposed to be none. So swapon is working. Now, I presume whatever handles this at boot is in /lib/udev.d? I'll go snoop in there. Thanks Alan -- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene>
