boot - Install Ubuntu from ISO... cannot install grub - Ask Ubuntu


i have broken ubuntu 14.04 lts system (i.e., not boot) in sda6 (in sda3, extended), booting 14.04 lts installation cd. sda6 readable, , can mount sda6, cannot boot. this additional info on cause of problems may help.

i mean install ubuntu 16.04.1 lts directly iso, new partition sda1 (primary). have placed iso file in directory in ext4 partition sda4 (primary). followed instructions in accepted answer of install ubuntu iso image directly hard disk of system running linux? . when try to

sudo update-grub

i get

/usr/bin/grub-probe: error: failed canonical path of '/cow'.

all references problem (failed canonical path of /cow , e.g.) indicate 1 should identify grub partition , perform couple of steps. not know if have such partition, nor how identify it. have 1 other partition sda2.

i guess in / volatile, , can have persistent stuff under mounted sda partitions.

here output of fdisk -l /dev/sda

disk /dev/sda: 750.2 gb, 750156374016 bytes 255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors units = sectors of 1 * 512 = 512 bytes sector size (logical/physical): 512 bytes / 4096 bytes i/o size (minimum/optimal): 4096 bytes / 4096 bytes disk identifier: 0x7fa54200     device boot      start         end      blocks   id  system /dev/sda1       976564224  1078964223    51200000   83  linux /dev/sda2   *        2048     1955839      976896   83  linux /dev/sda3         1957886   976564223   487303169    5  extended partition 3 not start on physical sector boundary. /dev/sda4      1078964224  1465147391   193091584   83  linux /dev/sda5         1957888    66406399    32224256   82  linux swap / solaris /dev/sda6        66408448   976564223   455077888   83  linux  partition table entries not in disk order

gparted shown below

enter image description here

i needed modify grub configuration boot iso image hd since bios changing usb boot password locked, linux live not viable.

i managed boot iso typing needed in grub editor @ boot time.

so, technically, solved problem without answering question, , still not know answer.

but installation failed anyway. got password bios, change boot usb, used linux live , installed 16.04 no problem.

conclusion: results of installation attempt iso on hd different usb, if should same (failure vs. success).


Comments

Post a Comment

Popular posts from this blog

download - Firefox cannot save files (most of the time), how to solve? - Super User

this not full duplicate of this question or this question , though base question same. however, questions have no answers. for on half year have problems downloading files firefox. when click on download link, download dialog opened asking me do, save or open it. immediately, there error/warning pop-up (twice, can see 1 @ first) ok button. looks this message : "c:\users\%user%\appdata\local\temp\wbbdv9k8.zip.part not saved because source file not read. try again later or contact server administrator." replace '%user%' name of user trying download. after closing pop-up, download dialog disappears , have minimize firefox , open again, see other pop-up. downloading exact same file internet explorer work, not desired. i tried solutions here . tried solutions here . tried disabling extensions. tried fixing permissions on temp folder. tried making files , folder in profile directory non-readonly. tried running firefox administrator. tried
Read more

windows - "-2146893807 NTE_NOT_FOUND" when repair certificate store - Super User

i try repair certificate store in windows 10 doing c:\windows\system32>certutil -store -user ‎330000019dba8d5dddb98062a900000000019d "personal" certutil: -store command failed: 0x80090011 (-2146893807 nte_not_found) certutil: object not found. i have double check mmc, certificate details serial number of certificate. still fail repair certificate store. can please help? i getting same error when trying export pfx. turns out had export c:\cert.pfx instead of cert.pfx (it trying export file cert store ( cert:\localmachine\my ).
Read more