On Friday 14 September 2018 21:39:02 Alan Corey wrote: > I don't know about that, I think it's the same in the BSDs and they > don't have udev. It's maybe more memory than file. > > vmstat should show it, and I think there's a swapctl, but those are > optionally installed things. > vmstat seems to be installed, but the system is inactive except for a pair of ssh -Y logins from me. It reports: $ vmstat procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 2 0 0 605904 34156 172824 0 0 14 0 723 539 0 5 94 0 0
This in spite of htop saying theres 999 megs of swap available. So the above needs a good manpage read to decode it. The 0 0 bothers me. Its supposed to take an optional delay 10 for and infinite number of updates at 10 second intervals, but barfs of the delay keyword. Lotta help that is. swapctl can't be found. pi@picnc:~ $ sudo apt install swapctl Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package swapctl > If you use Firefox you probably need it: > KiB Mem : 949444 total, 30988 free, 678588 used, 239868 > buff/cache KiB Swap: 4538548 total, 4113588 free, 424960 used. > 248532 avail Mem after 6 days of uptime firefox is not installed. > On 9/14/18, Gene Heskett <ghesk...@shentel.net> wrote: > > 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 I just nuked the swapfile in /var. We'll see what amanda does to the swap in the morning. ;-) > >> > 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/sy > >>ste 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,shor > >>tna me=mixed,errors=remount-ro 0 0 /dev/sda1 /media/boot vfat > >> rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shor > >>tna 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> -- 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>
