Date: Fri, 16 May 2014 05:04:13 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: "Ronald F. Guilmette" <rfg@tristatelogic.com> Cc: freebsd-geom@freebsd.org Subject: Re: GEOM_PART: Integrity check failed (ada2, MBR) Message-ID: <alpine.BSF.2.00.1405160453130.34394@wonkity.com> In-Reply-To: <1758.1400216600@server1.tristatelogic.com> References: <1758.1400216600@server1.tristatelogic.com>
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On Thu, 15 May 2014, Ronald F. Guilmette wrote: > 1) I placed the 1tb drive into my #2 system and then booted that system > using a recent vintage (0.18.2) version of the "Gparted Live" CD. > > 2) I used Gparted to create and initialize a GPT partition table on the > drive. > > 3) I used Gparted to create and initialize a single partition (containing > all free space on the drive) and had it (Gparted) create an ext3 filesystem > on that partition. > > 4) I then performed a clean shutdown of Gparted. > > 5) I then removed the new 1tb drive in question from my #2 desktop system > and moved it into the hot-swap rack of my main (FreeBSD 9.1-RELEASE) system > (which already contains two other drives, i.e. ada0 and ada1). > > 6) I used the power switch on the rack to power on the drive. > > The result of the above operations is as follows: > > May 15 21:53:33 segfault kernel: ada2 at ata5 bus 0 scbus5 target 0 lun 0 > May 15 21:53:33 segfault kernel: ada2: <Hitachi HTS541010A9E680 JA0OA480> ATA-8 SATA 3.x device > May 15 21:53:33 segfault kernel: ada2: 300.000MB/s transfers (SATA 2.x, UDMA5, PIO 8192bytes) > May 15 21:53:33 segfault kernel: ada2: 31MB (65134 512 byte sectors: 16H 63S/T 64C) > May 15 21:53:33 segfault kernel: ada2: Previously was known as ad10 > May 15 21:53:33 segfault kernel: GEOM_PART: integrity check failed (ada2, MBR) Some Linuxes (Linii?) might be creating "hybrid" GPTs, with a PMBR that is non-standard. I can't speak to what Gparted does. There is a sysctl to relax the strict checking in FreeBSD, but I would suggest using gpart(8) instead. (Backups necessary, etc., and this is off the top of my head and untested.): # gpart destroy -F ada2 # gpart create -s gpt ada2 # gpart add -t \!0x83 -b1m -a4k ada2 (That 0x83 is for the Linux partition type. gpart(8) might have a keyword for that, like "linux" or "linux-data".) Then newfs /dev/ada2p1 to ext2 or 3. The steps would be nearly identical for MBR, but avoid MBR if you can.
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