{"id":723,"date":"2010-06-02T23:13:55","date_gmt":"2010-06-03T04:13:55","guid":{"rendered":"http:\/\/75.134.27.61:8101\/wordpress\/?p=723"},"modified":"2012-08-14T18:25:28","modified_gmt":"2012-08-14T23:25:28","slug":"bash-devnull-permission-denied","status":"publish","type":"post","link":"https:\/\/icesquare.com\/wordpress\/bash-devnull-permission-denied\/","title":{"rendered":"-bash: \/dev\/null: Permission denied"},"content":{"rendered":"<p>Recently, I found that Ubuntu gives the following error when I log in to the system:<\/p>\n<pre>\r\n-bash: \/dev\/null: Permission denied\r\n<\/pre>\n<p>After I run the following command, the problem is gone:<\/p>\n<pre>\r\nsudo chmod 0666 \/dev\/null\r\n<\/pre>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Recently, I found that Ubuntu gives the following error when I log in to the system: -bash: \/dev\/null: Permission denied After I run the following command, the problem is gone: <a class=\"more-link\" href=\"https:\/\/icesquare.com\/wordpress\/bash-devnull-permission-denied\/\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[94,144,6,69],"tags":[],"class_list":["post-723","post","type-post","status-publish","format-standard","hentry","category-computer-problems-computer-help-pc-support","category-sever-problem","category-technology","category-troubleshooting-technology"],"jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/p1sqzr-bF","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":3380,"url":"https:\/\/icesquare.com\/wordpress\/freebsdmount-devda0p2-rw-mount-of-denied-filesystem-is-not-clean-run-fsck-forced-mount-will-invalidate-journal-contents-operation-not-permitted\/","url_meta":{"origin":723,"position":0},"title":"[FreeBSD]mount: \/dev\/da0p2: R\/W mount of \/ denied. Filesystem is not clean &#8211; run fsck. Forced mount will invalidate journal contents: Operation not permitted","author":"Derrick","date":"January 5, 2014","format":false,"excerpt":"When I tried to mount a hard drive on FreeBSD today, I got the following error message. sudo mount -t ufs \/dev\/da0p2 \/mnt\/ mount: \/dev\/da0p2: R\/W mount of \/ denied. Filesystem is not clean - run fsck. Forced mount will invalidate journal contents: Operation not permitted Here is how to\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":305,"url":"https:\/\/icesquare.com\/wordpress\/installing-xampp-on-fedora-12-64-bit\/","url_meta":{"origin":723,"position":1},"title":"Installing XAMPP on Fedora 12 64-bit system","author":"Derrick","date":"December 8, 2009","format":false,"excerpt":"I was installing XAMPP on Fedora 11 64-bit today, and I saw this famous message: sudo \/opt\/lampp\/lampp startapache XAMPP is currently only availably as 32 bit application. Please use a 32 bit compatibility library for your system. The message is very clear that XAMPP doesn't like 32-bit system. So, we\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3743,"url":"https:\/\/icesquare.com\/wordpress\/zfs-performance-mirror-vs-raidz-vs-raidz2-vs-raidz3-vs-striped\/","url_meta":{"origin":723,"position":2},"title":"ZFS Performance: Mirror VS RAIDZ VS RAIDZ2 vs RAIDZ3 vs Striped","author":"Derrick","date":"September 25, 2014","format":false,"excerpt":"I always wanted to find out the performance difference among different ZFS types, such as mirror, RAIDZ, RAIDZ2, RAIDZ3, Striped, two RAIDZ vdevs vs one RAIDZ2 vdev etc. So I decide to create an experiment to test these ZFS types. Before we talk about the test result, let's go over\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2122,"url":"https:\/\/icesquare.com\/wordpress\/delete-empty-system-mail-box-freebsd-linux\/","url_meta":{"origin":723,"position":3},"title":"How to Delete System Mail \/ Empty System Mail box in FreeBSD \/ Linux?","author":"Derrick","date":"December 22, 2011","format":false,"excerpt":"[ad#adbrite] When I checked my FreeBSD system mail box today, I found that there were 8000 system mails sitting my mail box: mail Mail version 8.1 6\/6\/93. Type ? for help. \"\/var\/mail\/root\": 8182 messages 8182 new >N 1 root@localhost.my.do Fri Sep 30 03:02 44\/1330 \"x.com output\" N 2 root@localhost.my.do Fri\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1263,"url":"https:\/\/icesquare.com\/wordpress\/harddrive-disappears-or-got-deteched-in-freebsd\/","url_meta":{"origin":723,"position":4},"title":"[Solved]Harddrive disappears or got deteched in FreeBSD","author":"Derrick","date":"February 17, 2011","format":false,"excerpt":"Have you experienced these computer problems like mine before? You got some error messages that your system cannot read your harddrives, or your harddrives suddenly got detached by your system. You have no clue why it happens because it is a fairly new harddrive. Before you decide to discard, return\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"\/wordpress\/wp-content\/uploads\/2011\/02\/Hardware-150x150.png","width":350,"height":200},"classes":[]},{"id":1640,"url":"https:\/\/icesquare.com\/wordpress\/freebsd-unable-to-find-device-node-for-devad0s1b-in-dev\/","url_meta":{"origin":723,"position":5},"title":"FreeBSD: Unable to find device node for \/dev\/ad0s1b in \/dev!","author":"Derrick","date":"September 30, 2011","format":false,"excerpt":"While I reinstalled the FreeBSD on my FreeBSD box, I got the following error message: Unable to find device node for \/dev\/ad0s1b in \/dev! I searched online and I found different solutions. The most popular one is about using the command, dd, to clean up the first and the last\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts\/723","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/comments?post=723"}],"version-history":[{"count":7,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts\/723\/revisions"}],"predecessor-version":[{"id":2902,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts\/723\/revisions\/2902"}],"wp:attachment":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/media?parent=723"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/categories?post=723"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/tags?post=723"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}