similar to: CentOS 7, systemd, pNFS - hosed

m.roth at 5-cent.us wrote: > I just updated a server that's running CentOS 7. I do have elrepo enabled, > because this Rave computer has four early Tesla cards. > > It won't boot. Nor can I get it to boot with either of the other two > kernels, and I'll be the one that worked was erased. > > *Once* it complained that it couldn't fsck the large filesystem (IIRC,

Hi, I am soliciting input from the ZFS engineers and/or ZFS users on an extension to "zfs list". Thanks in advance for your feedback. Quick Background: The pNFS project (http://opensolaris.org/os/project/nfsv41/) is adding a new DMU object set type which is used on the pNFS data server to store pNFS stripe DMU objects. A pNFS dataset gets created with the "zfs

Greetings, Does anyone know whether I'll encounter problems serving out CIFS using Samba/CTDB where the servers are pNFS clients? Specifically I'm thinking that I'll have a number of RHEL 6.2 boxes connecting to netapp storage using pNFS. These boxes will then serve a variety of CIFS clients. JR

Hi, When I perform a software RAID 1 or RAID 5 installation on a LAN server with several hard disks, I wonder if GRUB already gets installed on each individual MBR, or if I have to do that manually. On CentOS 5.x and 6.x, this had to be done like this: # grub grub> device (hd0) /dev/sda grub> device (hd1) /dev/sdb grub> root (hd0,0) grub> setup (hd0) grub> root (hd1,0) grub>

Hi list, I am wondering why do we need Ganesha user-land NFS server in order to get pNFS working? I understand Ganesha is necessary on the MDS, but standard kernel based NFS server should be sufficient on DS bricks (which should bring us additional performance), right? Could someone clarify? Thanks, Ondrej ----- The information contained in this e-mail and in any attachments is confidential

On Thu, Jan 5, 2017 at 4:04 AM, Nikolaos Milas <nmilas at noa.gr> wrote: > On 4/1/2017 7:37 ??, Gordon Messmer wrote: > > I don't see that on VMs that I manage. Some of the physical machines that >> I manage do have duplicates in the device.map. >> > > Thank you Gordon for your feedback! > > Can others please report the content of /boot/grub2/device.map

So, it installed happily. Then wouldn't boot. No problem, I'll bring it up with pxe, then chroot and grub2-install. Um, nope. I edited the device map from hd0 and hd1 being the RAID to /dev/sda and /dev/sdb, then ran grup2-install. It now tells me can't identify the filesystem on hd0, and can't perform a safety check, and gives up. What am I missing? Google is not giving me any

On 8/5/2015 1:00 PM, Chris Murphy wrote: > On Wed, Aug 5, 2015 at 10:52 AM, Bowie Bailey <Bowie_Bailey at buc.com> wrote: >> How would I go about pointing it at the partition? >> >> What I am currently doing is this: >> device (hd0) /dev/hdg >> root (hd0,0) >> setup (hd0) > > setup (hd1,0) > > It's hd1 if your device map is correct and

On 01/04/2017 03:07 AM, Nikolaos Milas wrote: > Is it normal in CentOS 7 to have a device map with two entries esp. > when the (physical or virtual) hardware has only one hd ? I don't see that on VMs that I manage. Some of the physical machines that I manage do have duplicates in the device.map.

Dear All: I am having trouble trying to dual-boot VMware and Linux, and I tried everything I could come up with. The situation is that /dev/sda is fully used by VMware and /dev/sdb is used by Linux. VMware uses Syslinux, so I thought this would be simple... However, it is not. The bootable FAT partition is too smal to have kernels in it. As a fallback I tried to chain-load GRUB, but that did not

Greetings - The short story is that got my new install completed with the partitioning I wanted and using software raid, but after a reboot I ended up with a grub prompt, and do not appear to have a grub.cfg file. So here is a little history of how I got here, because I know in order for anyone to help me they would subsequently ask for this information. So this post is a little long, but

On 08/05/2013 11:29 PM, Jonas Keidel wrote: > 2013/8/6 H. Peter Anvin <hpa at zytor.com> > >> What about "chain.c32 hd1" or "chain.c32 hd1 swap"? >> > > That's right, but due to our pxe environment we need a static entry which > handles both, booting from first and second hdd if one fails. localboot > does so. > Actually this does

On 8/5/2015 12:34 PM, Chris Murphy wrote: > On Wed, Aug 5, 2015 at 9:12 AM, Bowie Bailey <Bowie_Bailey at buc.com> wrote: >> I am trying to upgrade my system from 500GB drives to 1TB. > I'm going to guess that there are no IDE drives that have 4096 byte > physical sectors, but it's worth confirming you don't have such a > drive because the current partition

I have Windows 7 on /dev/sda and CentOS 6.4 on /dev/sdb. Here are the layouts: (parted) select /dev/sda Using /dev/sda (parted) print Model: ATA WDC WD10EZEX-00Z (scsi) Disk /dev/sda: 1000GB Sector size (logical/physical): 512B/4096B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 374MB 373MB primary ntfs boot

On 08/05/2015 10:23 AM, Chris Murphy wrote: > Nothing about hd0 or hd1 gets baked into the bootloader code. It's an > absolute reference to a physical drive at the moment in time the > command is made. Is that true? If I have a system with two disks, where device.map labels one as hd0 and the other as hd1, and I swap those numbers, the resulting boot sector will differ by one bit.

2013/8/7 Jonas Keidel <jonas at jonas-keidel.de> > > > 2013/8/6 H. Peter Anvin <hpa at zytor.com> > >> On 08/05/2013 11:29 PM, Jonas Keidel wrote: >> > 2013/8/6 H. Peter Anvin <hpa at zytor.com> >> > >> >> What about "chain.c32 hd1" or "chain.c32 hd1 swap"? >> >> >> > >> >

Code doesn't just write itself... Jonas Keidel <jonas at jonas-keidel.de> wrote: >I like to reactivate this topic because i don't see any changes at the >last >time... >So what about the topic? > > >2013/8/9 Jonas Keidel <jonas at jonas-keidel.de> > >> 2013/8/7 Jonas Keidel <jonas at jonas-keidel.de> >> >>> >>>

Hello, After repeated failing efforts to restore CentOS 7 backups (taken using mondorescue software), I have found that all my CentOS 7 installations (VMs under KVM) have the same /boot/grub2/device.map, which seemingly refers to two HDs, although the VMs in fact include only one (virtual) HD. For example: /boot/grub2/device.map # this device map was generated by anaconda (hd0)

I'd like to use chain.c32 to allow the computer boot from HARDDISK if needed. If I use isolinux and boot from CD, the following works OK: chain.c32 hd0 But if I boot from USB Flash Key, it sometimes work and sometimes it doesn't and I have to use chain.c32 hd1 (it seems BIOS assigns hd0 to the flash key sometimes, so the real harddisk is hd1 in that case). Is there any way to tell

hi, we've got a server with a 8 port 3ware card and 2 ide system disks. now we'd like to replace the ide disks with scsi disks or sata disks (these also recognized as scsi in the kernel). but we can't boot from it. the problem are twofold. first in the normal case the first scsi host scsi0 id the 3ware card, but grub only see the first 8 disk so if the system disk are sdi and sdj the