On Tue, Oct 28, 2014 at 1:08 AM, John R Pierce <pierce at hogranch.com> wrote: > what do you get from the commands: > > pvs -v > vgs -v > lvs > > and, if pvs shows any /dev/mdXX devices, the output of mdadm --detail > /dev/mdXX > Hi John, here are the results: #pvs -v Scanning for physical volume names /dev/root: read failed after 0 of 4096 at 27522957312: Input/output error /dev/root: read failed after 0 of 4096 at 27523014656: Input/output error Wiping cache of LVM-capable devices /dev/root: read failed after 0 of 4096 at 27522957312: Input/output error /dev/root: read failed after 0 of 4096 at 27523014656: Input/output error Couldn't find device with uuid vSbuSJ-o1Kh-N3ur-JYkM-Ktr4-WEO2-JWe2wS. There are 1 physical volumes missing. There are 1 physical volumes missing. There are 1 physical volumes missing. PV VG Fmt Attr PSize PFree DevSize PV UUID /dev/sda2 vg_devserver lvm2 a-- 29.51g 0 79.51g ij17Vf-kY56-jfg0-j769-Z1E5-Nk7C-RqYG18 unknown device vg_devserver lvm2 a-m 29.99g 29.96g 0 vSbuSJ-o1Kh-N3ur-JYkM-Ktr4-WEO2-JWe2wS # vgs -v Finding all volume groups /dev/root: read failed after 0 of 4096 at 27522957312: Input/output error /dev/root: read failed after 0 of 4096 at 27523014656: Input/output error Finding volume group "vg_devserver" Wiping cache of LVM-capable devices /dev/root: read failed after 0 of 4096 at 27522957312: Input/output error /dev/root: read failed after 0 of 4096 at 27523014656: Input/output error Couldn't find device with uuid vSbuSJ-o1Kh-N3ur-JYkM-Ktr4-WEO2-JWe2wS. There are 1 physical volumes missing. There are 1 physical volumes missing. VG Attr Ext #PV #LV #SN VSize VFree VG UUID VProfile vg_devserver wz-pn- 4.00m 2 2 0 59.50g 29.96g VidRBE-37ri-HYfd-Sd1x-6lZX-ph9I-F3wvCG # lvs /dev/root: read failed after 0 of 4096 at 27522957312: Input/output error /dev/root: read failed after 0 of 4096 at 27523014656: Input/output error Couldn't find device with uuid vSbuSJ-o1Kh-N3ur-JYkM-Ktr4-WEO2-JWe2wS. LV VG Attr LSize Pool Origin Data% Move Log Cpy%Sync Convert lv_root vg_devserver -wi-ao--p- 25.63g lv_swap vg_devserver -wi-ao---- 3.91g And there is not mdXX device so I ommit that command