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May
2
comment Why does my cpu never get past 60-70% cpu usage? Where is the bottleneck?
Hardware bottlenecks like HT shared resources and memory do not limit cpu utilization, only the real world work that can be done with that cpu time. That is, when a core stalls because it needs one of these resources and they are not available, software is not aware of it and the kernel still counts it as used cpu time, not idle time.
May
1
comment No permissions?
Also instead of logging out, you can run exec newgrp btsync to join that group in that shell session ( the rest of your login session will still not be a member ).
May
1
comment Is grub.conf read by GRUBX64.EFI from SYSTEMD-BOOTX64.EFI?
@dgo.a, oops, you are right... I was looking at BootCurrent, which says you booted the systemd one this time, but indeed, it is not the default.
May
1
answered Is grub.conf read by GRUBX64.EFI from SYSTEMD-BOOTX64.EFI?
Apr
30
comment Linux using whole swap, becoming unresponsive while there is plenty of free RAM
Try ( as root ) echo 1 > /proc/sys/vm/drop_caches and see if that 6 gb of cache gets freed up. Also add the output of cat /proc/meminfo to your question.
Apr
30
answered “SSH Virtual Kiosk”. Does “PermitEmptyPasswords yes” work? - How to make ssh user with empty password, so random users can use it?
Apr
28
comment repair ext4 after squashfs thrown error & gparted move failed
@siblynx, testdisk can repair a lost partition table, but it can't deal with a filesystem that has half been moved, and half not.
Apr
26
answered repair ext4 after squashfs thrown error & gparted move failed
Apr
21
comment Why would I tar a single file?
gzip also records the original filename.
Apr
19
comment cp vs. mv: which operation is more efficient?
More specifically, in the same filesystem it simply calls rename().
Apr
19
comment device-mapper: reload ioctl on cache1 failed: Device or resource busy
@asj177, according to Documentation/device-mapper/cache.txt in the linux kernel sources, the cache target takes <metadata dev> <cache dev> <origin dev>.
Apr
18
comment What is using trillions of inodes on my almost empty server?
Your filesystem driver is broken.
Apr
18
answered device-mapper: reload ioctl on cache1 failed: Device or resource busy
Apr
17
answered How does Linux manage “simultaneous” writes to swap/disk partitions in virtual memory?
Apr
16
comment Make tar (or other) archive, with data block-aligned like in original files for better block-level deduplication?
One normally combines tar with some sort of compression, which, even if this would work with tar alone, certainly will not with compression.
Apr
9
comment I can't use the “sudo” command on my server
If you have locked yourself out of root access, then there is no avoiding a reboot.
Apr
7
awarded  Nice Question
Apr
6
comment A common way of combining two files in Solaris and Linux
Not sure what distro you are running but Debian based distributions at least, automatically create this link.
Mar
29
answered Root shell mistakenly changed. How can I change it back to a valid shell?
Mar
25
comment Packets not moving through linux ethernet bridge
Is this one of those expensive managed switches? My only guess is that it is and is configured not to allow bridging on that port and so it shuts it down when it sees you try. Wait; another possibility is that eth1 does not allow MAC spoofing. Try switching the order of eth0 and eth1 in your interfaces file so that br0 gets the mac address from eth1 instead of eth0.