On 17 November 2012 16:04, Goffredo Baroncelli <kreijack@xxxxxxxxx> wrote: > On 11/17/2012 03:52 AM, Yangtse Su wrote: >> I have an btrfs part on /dev/sda5,Then I install windows8 with the >> windows8 installer.I remove this btrfs part and install windows8 on >> it.Now in my Linux,'btfrs filesystem show' still show /dev/sda5 as a >> btrfs part. but now it is Microsoft Reserved part,only 128MB. >> > > There was a patch about that [1] and David posted a script perl that > does the same [2]. Moreover it seems that "wipefs" is also able to wipe > out a btrfs super-block. I never tried it. > > >> Here is some information: >> http://paste.ubuntu.org.cn/155508 > > Please the next time put all these info in the email > >> # blkid >> ... >> /dev/sda5: UUID="9c3e097a-bab0-4f18-b074-5cd2f081c8c7" > UUID_SUB="ef0e296c-f554-415e-9aa9-31b1cb9aef31" TYPE="btrfs" > /dev/sda6: UUID="3AFE3D50FE3D0623" TYPE="ntfs" >> # btrfs filesystem show >> Label: none uuid: 9c3e097a-bab0-4f18-b074-5cd2f081c8c7 >> Total devices 1 FS bytes used 284.00KB >> devid 1 size 33.48GB used 2.04GB path /dev/sda5 >> ... >> Btrfs Btrfs v0.19 >> #gdisk /dev/sda >> >p >> Number Start (sector) End (sector) Size Code Name >> ...... >> 5 493025280 493287423 128.0 MiB 0C01 Microsoft > reserved part >> 6 493287424 625141759 62.9 GiB 0700 Basic data > partition > > > [1]http://comments.gmane.org/gmane.comp.file-systems.btrfs/17065 > [2]http://www.mail-archive.com/linux-btrfs@xxxxxxxxxxxxxxx/msg16197.html Yes wipefs is the simplest method. Check first: # wipefs /dev/sda5 Do it second: # wipefs -a /dev/sda5 Mike -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
