{"id":4152,"date":"2016-09-12T17:04:56","date_gmt":"2016-09-12T22:04:56","guid":{"rendered":"http:\/\/icesquare.com\/wordpress\/?p=4152"},"modified":"2016-09-12T17:04:56","modified_gmt":"2016-09-12T22:04:56","slug":"linuxdevsdb1-more-filesystems-detected-this-should-not-happen","status":"publish","type":"post","link":"https:\/\/icesquare.com\/wordpress\/linuxdevsdb1-more-filesystems-detected-this-should-not-happen\/","title":{"rendered":"[Linux]\/dev\/sdb1: more filesystems detected. This should not happen,"},"content":{"rendered":"

I had a hard drive sitting around, and I decided to format it such that I could use it in my Linux CentOS box. When I decided to mount it, I got the following error message:<\/p>\n

\r\nmount: \/dev\/sdb1: more filesystems detected. This should not happen,\r\n       use -t  to explicitly specify the filesystem type or\r\n       use wipefs(8) to clean up the device.\r\n<\/type><\/pre>\n
This message simply tells you that there are two or more file systems sitting in the hard drive partitions, and the system does not know which one to use to mount. We can take a closer look to see what’s going on:<\/p>\n
\r\nsudo wipefs \/dev\/sdb1\r\n\r\n\r\noffset               type\r\n----------------------------------------------------------------\r\n0x2d1b0fa8923        zfs_member   [raid]\r\n                     LABEL: storage\r\n                     UUID:  12661834248699203227\r\n\r\n0x951                xfs   [filesystem]\r\n                     UUID:  90295123-2395-7456-8521-9A1EE963ac53\r\n\r\n<\/pre>\n
As you can see, we have two file systems here. The easiest way is to wipe out the first few sectors of your disk, i.e.,<\/p>\n
\r\nsudo dd if=\/dev\/zero of=\/dev\/sdb bs=1M count=10\r\n<\/pre>\n
And we will re-do everything again, i.e.,<\/p>\n
\r\nsudo parted \/dev\/sdb1\r\n...\r\n...\r\nsudo mkfs.xfs \/dev\/sdb1\r\nsudo mount \/dev\/sdb1 \/mnt\/\r\n<\/pre>\n
That’s it!<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
I had a hard drive sitting around, and I decided to format it such that I could use it in my Linux CentOS box. When I decided to mount it, Continue Reading →<\/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":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[94,146,144,6,69],"tags":[162,170,48],"class_list":["post-4152","post","type-post","status-publish","format-standard","hentry","category-computer-problems-computer-help-pc-support","category-everyday-computer-problem","category-sever-problem","category-technology","category-troubleshooting-technology","tag-centos","tag-harddrive","tag-linux"],"jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/p1sqzr-14Y","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":2739,"url":"https:\/\/icesquare.com\/wordpress\/how-to-install-a-3tb-drive-on-linux\/","url_meta":{"origin":4152,"position":0},"title":"How to Install a 2.5TB, 3TB drives on Linux","author":"Derrick","date":"March 15, 2012","format":false,"excerpt":"Recently I got a new hard drive (3TB) for my Linux box at work. I didn't realize that it is problematic \/ nightmare to do such a simple work. First, if you try to use fdisk to add the drive, it won't work. Or I should say... it works, but\u2026","rel":"","context":"In "Computer Problems"","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/icesquare.com\/wordpress\/wp-content\/uploads\/2011\/02\/Hardware.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":4542,"url":"https:\/\/icesquare.com\/wordpress\/centos-7-dracut-initqueue-timeout\/","url_meta":{"origin":4152,"position":1},"title":"CentOS 7 – dracut-initqueue timeout","author":"Derrick","date":"January 2, 2019","format":false,"excerpt":"I received a Christmas gift from the RHEL 7 \/ CentOS 7 \/ Linux kernel team today. After my system got updated to the new kernel (3.10.0-957.1.3.el7.x86_64), my system gave me few surprises. As a sys-admin, I don't want to see any surprise. What I really want is a working\u2026","rel":"","context":"In "Computer Problems"","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":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":4152,"position":2},"title":"[FreeBSD]mount: \/dev\/da0p2: R\/W mount of \/ denied. Filesystem is not clean – 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 "Computer Problems"","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":4286,"url":"https:\/\/icesquare.com\/wordpress\/how-to-install-zfs-on-rhel-centos-7\/","url_meta":{"origin":4152,"position":3},"title":"How to install ZFS on RHEL \/ CentOS 7","author":"Derrick","date":"January 4, 2017","format":false,"excerpt":"A friend of mine likes to try ZFS on CentOS 7, therefore I decide to make a guide for him. The following instructions have been well tested on CentOS 7. Before you decide to put ZFS in a production use, you should be aware of the following: ZFS is originally\u2026","rel":"","context":"In "Everyday Computer Problem"","block_context":{"text":"Everyday Computer Problem","link":"https:\/\/icesquare.com\/wordpress\/category\/everyday-computer-problem\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/icesquare.com\/wordpress\/wp-content\/uploads\/2011\/01\/zfs_logo.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":1214,"url":"https:\/\/icesquare.com\/wordpress\/building-a-super-large-and-reliable-file-server-with-mixed-size-of-harddisks\/","url_meta":{"origin":4152,"position":4},"title":"Building a Super Large and Reliable File Server with Mixed Size of Harddisks","author":"Derrick","date":"January 17, 2011","format":false,"excerpt":"In this article, I am going to show you how to build a super large, ultra reliable, expandable file server with mixed size of hard drives. Here is my criteria: Large Storage Capacity. At this moment, the largest hard drive is 2TB. I am looking for at least 10TB. Great\u2026","rel":"","context":"In "Computer Problems"","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\/01\/zfs_logo-150x150.jpg","width":350,"height":200},"classes":[]},{"id":3914,"url":"https:\/\/icesquare.com\/wordpress\/zfs-linux-vs-freebsd\/","url_meta":{"origin":4152,"position":5},"title":"Running ZFS on Linux: Things you should know and be aware of","author":"Derrick","date":"February 29, 2016","format":false,"excerpt":"First Published: Feb 29, 2016 Last Revised: January 10, 2026 ZFS is a next-generation file system renowned for its reliability and advanced features. However, due to legal and licensing issues, it is not included by default in most Linux distributions. Fortunately, you can still install (ZFS on Linux) with just\u2026","rel":"","context":"In "Computer Problems"","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\/4152","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=4152"}],"version-history":[{"count":2,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts\/4152\/revisions"}],"predecessor-version":[{"id":4154,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts\/4152\/revisions\/4154"}],"wp:attachment":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/media?parent=4152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/categories?post=4152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/tags?post=4152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}