Re: [gentoo-user] Partition of 3TB USB drive not detected
On 08/06/2016 02:21 AM, Andrea Conti wrote: Hi, ~ # parted /dev/sde print Model: WD My Book 1230 (scsi) Disk /dev/sde: 6001GB Sector size (logical/physical): 4096B/4096B [...] AFAICS this partition works fine, fsck does not report any problem. The funny thing is, it should not have been possible, because of the 2GB limit of MBR. The real limit of MBR is 2^32 sectors, which amounts to 2TB when using 512B sectors. Both your disks are using native 4kB sectors (look at the logical sector size in the parted output), which effectively raises the MBR limit to 16TB. Not that this answers your question, as the Linux kernel has supported 4kB sectors for years and AFAIK it does not need any special configuration options to do so... andrea It's always a good idea to check alignment on the newer disks. Here's a doc [1]; but it's not always clear how to ensure proper alignment. Supposidly the newer tools do this automation, but it's not 100%; ymmv. [1] https://www.ibm.com/developerworks/linux/library/l-linux-on-4kb-sector-disks/ Many disk are hybrids of the 512/4906 sector size. hth, James
Re: [gentoo-user] NVidia drivers and vanilla kernel Linux 4.7.0 anyone?
Hello Meino, On Sat, 30 Jul 2016, meino.cra...@gmx.de wrote: [..] >WHOW! Thanks a lot for the patch! As this issue has just come up on gentoo-dev as well, has the patch worked for you (so far)? Please give a report if it worked or not. I've been unable to run/test my system with that patch for longer to really have an opinion (no idea when that code actually gets called while running the driver). TIA, -dnh -- Ugga Ugga ! Nognog! Dadadadada! [Woko° in dag°]
Re: [gentoo-user] Partition of 3TB USB drive not detected
Hi, > ~ # parted /dev/sde print > Model: WD My Book 1230 (scsi) > Disk /dev/sde: 6001GB > Sector size (logical/physical): 4096B/4096B [...] > AFAICS this partition works fine, fsck does not report any problem. The > funny thing is, it should not have been possible, because of the 2GB limit > of MBR. The real limit of MBR is 2^32 sectors, which amounts to 2TB when using 512B sectors. Both your disks are using native 4kB sectors (look at the logical sector size in the parted output), which effectively raises the MBR limit to 16TB. Not that this answers your question, as the Linux kernel has supported 4kB sectors for years and AFAIK it does not need any special configuration options to do so... andrea
