Programs disappeared after hard reboot

challisto · 2015-09-11 02:52:27

Installed with pacman:
libtorrent
rtorrent
ntfs-3g
php
php-fpm
etc...

QGis with makepkg

compiled and installed Nginx manually.

After a while of using my computer I did a hard reboot and all those programs and their configurations disappeard. How can I restore everything?

ewaller · 2015-09-11 03:01:48

Unlikely. Did you install these while you were booted from the installation disk? Or had you actually installed Arch, Configured your boot loader, and were running a proper installation?

challisto · 2015-09-11 03:04:29

It's on an installed Arch.

ewaller · 2015-09-11 03:08:44

Okay, I guess we will need to see the output of:
mount
and the contents of
/var/log/pacman.log

challisto · 2015-09-11 03:16:13

mount:

sys on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
dev on /dev type devtmpfs (rw,nosuid,relatime,size=4027372k,nr_inodes=1006843,mode=755)
run on /run type tmpfs (rw,nosuid,nodev,relatime,mode=755)
/dev/sda5 on / type f2fs (rw,relatime,background_gc=on,nouser_xattr,noacl,inline_data,active_logs=6)
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/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
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=28,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)
mqueue on /dev/mqueue type mqueue (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
tmpfs on /tmp type tmpfs (rw)
/dev/sda2 on /boot type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/mapper/home on /home type ext4 (rw,noatime,discard,data=ordered)
tmpfs on /run/user/997 type tmpfs (rw,nosuid,nodev,relatime,size=805984k,mode=700,uid=997,gid=997)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=805984k,mode=700,uid=1000,gid=100)
/dev/sdb1 on /mnt/StorageNTFS type fuseblk (rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096)
/dev/sda7 on /mnt/Storage type fuseblk (rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)

Pacman log: http://pastebin.com/rq9sWQvH

ewaller · 2015-09-11 04:19:05

Okay, I'm out. I've never dealt with F2FS. Sorry.

R00KIE · 2015-09-11 10:29:17

Hard reboots and f2fs don't mix well. I've had something similar happen and I had to resort to restoring from backups. You can try to use fsck.f2fs and it might find and correct errors but I would assume you will have things that are gone. F2fs is still a bit green and needs more real world usage, my personal experience is that it works well as long as you don't do hard reboots or suddenly unplug a disk without unmounting first.

On the other hand, if you want to keep using f2fs I'd recommend you force some mount options, I have no idea why but when you mount f2fs as the root fs the mount options differ from the defaults. On one of my systems I'm currently forcing "background_gc=on,user_xattr,acl,inline_data".

challisto · 2015-09-13 02:40:08

After some more testing I'm certain it has to do with f2fs. It seems writes aren't truly committed until some event or time interval. I'll test different mount options when I have some time and see if I can change that behavior.

R00KIE · 2015-09-13 11:28:06

challisto wrote:

After some more testing I'm certain it has to do with f2fs. It seems writes aren't truly committed until some event or time interval. I'll test different mount options when I have some time and see if I can change that behavior.

No filesystem can be 100% robust against hard reboots. Next time try to use sysrq if possible and avoid doing a hard reboot.

Arch Linux

#1 2015-09-11 02:52:27

Programs disappeared after hard reboot

#2 2015-09-11 03:01:48

Re: Programs disappeared after hard reboot

#3 2015-09-11 03:04:29

Re: Programs disappeared after hard reboot

#4 2015-09-11 03:08:44

Re: Programs disappeared after hard reboot

#5 2015-09-11 03:16:13

Re: Programs disappeared after hard reboot

#6 2015-09-11 04:19:05

Re: Programs disappeared after hard reboot

#7 2015-09-11 10:29:17

Re: Programs disappeared after hard reboot

#8 2015-09-13 02:40:08

Re: Programs disappeared after hard reboot

#9 2015-09-13 11:28:06

Re: Programs disappeared after hard reboot

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