harri's questions

Hoping someone can help me recover my ubuntu server instance. Ran out of space on a VM and decided to extend the virtual disk.

lvextend -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
  Size of logical volume ubuntu-vg/ubuntu-lv changed from 37.00 GiB (9472 extents) to <74.00 GiB (18943 extents).
  Logical volume ubuntu-vg/ubuntu-lv successfully resized.

This I noticed worked but only to 75GB so realised I still needed to increase the partiiton size which I did like below:

sudo growpart /dev/xvda 3
CHANGED: partition=3 start=2101248 old: size=155183104 end=157284352 new: size=417329119 end=419430367

I then thought I could go back and run the original command again as lsblk returned below which looked good to me:

lsblk
NAME                      MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
loop0                       7:0    0 55.5M  1 loop /snap/core18/2246
loop1                       7:1    0 55.5M  1 loop /snap/core18/2253
loop2                       7:2    0 61.9M  1 loop /snap/core20/1242
loop3                       7:3    0 61.9M  1 loop /snap/core20/1270
loop4                       7:4    0 67.2M  1 loop /snap/lxd/21803
loop5                       7:5    0 67.2M  1 loop /snap/lxd/21835
loop6                       7:6    0 42.2M  1 loop /snap/snapd/14066
loop7                       7:7    0 43.3M  1 loop /snap/snapd/14295
sr0                        11:0    1 1024M  0 rom
xvda                      202:0    0  200G  0 disk
├─xvda1                   202:1    0    1M  0 part
├─xvda2                   202:2    0    1G  0 part /boot
└─xvda3                   202:3    0  199G  0 part
  └─ubuntu--vg-ubuntu--lv 253:0    0   74G  0 lvm  /
xvdb                      202:16   0  5.4T  0 disk
└─xvdb1                   202:17   0  5.4T  0 part /mnt/media

So executed lvextend -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv again however ran into this error:

user@server:~$ sudo lvextend -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
  Volume group "ubuntu-vg" not found
  Cannot process volume group ubuntu-vg

I gave up in the end as all was working and I had increased my space to get by enough for a while but thought I would come back later...I didn't before a reboot and now i'm stuck in initramfs getting errors like this on boot similar to the ones I had experienced when tryning to extend the volume:

Volume group "ubuntu-vg" not found
Cannot process volume group ubuntu-vg
...
    ALERT!  /dev/mapper/ubuntu--vg-ubuntu--lv does not exist. Dropping to a shell!

Other notes

Looking back over what I did i'm worried this may have been an issue:

sudo fdisk -u /dev/mapper/ubuntu--vg-ubuntu--lv

Welcome to fdisk (util-linux 2.34).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

The old ext4 signature will be removed by a write command.

Device does not contain a recognized partition table.
Created a new DOS disklabel with disk identifier 0xaae0d62a.

Command (m for help): p
Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 73.102 GiB, 79452700672 bytes, 155181056 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xaae0d62a

Command (m for help): w
The partition table has been altered.
Syncing disks.

Just kind of thought that warning above meant something needed updated so just haphazardly did that to both that disk and the one below:

sudo fdisk /dev/xvda3

Welcome to fdisk (util-linux 2.34).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

The old LVM2_member signature will be removed by a write command.

Device does not contain a recognized partition table.
Created a new DOS disklabel with disk identifier 0xfc8b2324.

Command (m for help): p
Disk /dev/xvda3: 73.102 GiB, 79453749248 bytes, 155183104 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xfc8b2324

Command (m for help): w
The partition table has been altered.
Syncing disks.

And here I am stuck in this initramfs shell hoping someone can help men fix this without rebuilding the whole thing... I may have missed some issues and bits but tried to explain as well as i possibly can what may have gone wrong just hoping it may be something simple to undo?

I have a Fujitsu server with D2616 raid contorller, this has 2 mini SAS ports on it with one connecting into a backpane where i have 4 hdd plugged in. This works fine however wanted some SSD's in there and this card says in specs it has 8 ports so figured i would buy one of these:

https://www.amazon.co.uk/Cable-Matters-Internal-SFF-8087-Breakout/dp/B07QFSLP6F/ref=pd_lpo_23_t_1/260-3015938-9732447?_encoding=UTF8&pd_rd_i=B07QFSLP6F&pd_rd_r=fbce699c-dcce-4d1c-aa1b-141e2ea73d2f&pd_rd_w=pkWvQ&pd_rd_wg=ZO8F3&pf_rd_p=7b8e3b03-1439-4489-abd4-4a138cf4eca6&pf_rd_r=03F4KM42ZPC0MXMJVNXK&psc=1&refRID=03F4KM42ZPC0MXMJVNXK

I connected this up all fine however no more drives seem to show in the raid controller. I have scanned through the BIOS and not seen anything that stood out to enable this next port.

Does this second port even work, or is this cable wrong not quite sure how to get it working properly and hoping for a nudge in the right direction?

There is also an advanced function however looks like it needs some licence so hope its not included in there. Can't seem to find any information online about this!

I have a server with a few VM's first VM's I setup using the main local storage which was an SSD. I then added a few HDD via RAID etc and thought it would be simple enough to add another storage device.

So f disk listed them fine, I then added the storage with below command:

xe sr-create content-type=user type=lvmohba device-config:device=/dev/sdc shared=false name-label="HDD6TB"

This shows up within Xcp-no center and can create a VM with the new disk however upon booting it just seems to throw error "boot device: CD-Rom medium detected - failure could not read boot disk" and then powers off.

Not sure if it is my storage or anything but have tried on a few disks and have the same issue. These vary from vdisks to standalone disks in raid controller to a HDD plugged directly in Mobo so feel it must be something I’m doing wrong with formatting / partitioning of these new disks.

Also tried Changing boot order and restarted a few times unplugged etc. Recreated partitions a few separate ways but one thing I noticed is even though they are ext4 I cant go above 2tb.

So no luck on adding any extra drives other than the one it was originally installed on, what am i doing wrong here?

I want to enable the web management interface on a Draytek Vigor 2960 router and have connected via SSH however bit confused as to how to configure like so. Tried like below however just shows a list of commands.

Vigor2960> ip6 mngt https on
       ^
apply       Apply setting
debug       show debug log
enable      Change to enable mode
fpp         Change inspection policy and packet count of FPP
help        Display an overview of the CLI syntax
history     Display the current session's command line history
logout      Logout of the current CLI session
ping        Send ICMP ECHO_REQUEST packets to network host
ping6       Send ICMP ECHO_REQUEST packets to network host
restart     Restart service
status      Get current system related status
tr069       Get current tr069 parameter value
traceroute  Print the route packets trace to network host
uci         uci command
wd_off      close watch dog, ps: watch dog is running in default after reboot

exit        Exit

Not sure if i need to enter a configuration mode or if that is even the correct command to enable this and was wondering how this is achieved?

I am trying to set up some RAID arrays on a HP ML310 gen8 v2 server. I enabled the raid controller pressing F9 and System Options, Embedded SATA Configurations and enabling Dynamic HP Smart Array B120i RAID Support.

I then rebooted and tried to configure with F5 once the raid controller started.

This however seems to start the Raid Configuration (ACU / HP SSA) for a moment and then reboot before allowing me to set anything.

I have updated BIOS and ILO, reset all settings, then unplugged all drives etc however I have had no luck and wondering what I may be doing wrong?

There are no errors and am connected via ILO which doesn't seem to show anything suspicious just Server Reset when it happens and status of everything all seems ok. All 4 drives show when moving back to ahci mode also.

Similarly selecting intelligent provisioning seems to cause the same reboot so i installed 1.62b intelligent provisioning which the stopped the reboot when entering Raid Configuration (ACU / HP SSA) or intelligent provisioning but then threw an error:

Warning!!! Unable to mount the file system

Dropping to a shell. Good Luck!

/bin/ash: can't access tty: job control turned off

I changed my router last night and computers are fine and wireless fine etc. My development web server seemed fine I can access it any my websites and SSH etc however I noticed that I have no internet access.

I have a Ubuntu 18.04 instance with a static IP set however tested with DHCP and had the same situation with SSH etc but no internet access.

I'm guessing my config is in /etc/netplan and not /etc/network/interfaces for this version of ubuntu so have set below configs which seem to give me a working network connection (although i have set both the same as originally I used the latter and it didn't work):

/etc/netplan/01-netcfg.yaml:

# This file describes the network interfaces available on your system
# For more information, see netplan(5).
network:
  version: 2
  renderer: networkd
  ethernets:
    eth0:
     dhcp4: no
     dhcp6: no
     addresses: [192.168.1.6/24]
     gateway4: 192.168.1.254
     nameservers:
       addresses: [8.8.8.8,8.8.4.4]

ifconfig:

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.6  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::a60:6eff:fee5:e58b  prefixlen 64  scopeid 0x20<link>
        ether 08:60:6e:e5:e5:8b  txqueuelen 1000  (Ethernet)
        RX packets 29347  bytes 3199867 (3.1 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4103  bytes 484556 (484.5 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

/sbin/route

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use 
Iface
default         192.168.1.254   0.0.0.0         UG    0      0        0 eth0
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0

curl 192.168.1.254:

curl: (7) Failed to connect to 192.168.1.254 port 80: No route to host

Ping fails to 8.8.8.8 and my gateway/router however works to other devices on the network. My new Draytek just doesn't seem to like my server. Nothing seems to show relating to my Server within syslog for the router so feel firewall isn't blocking anything there either. Firewall is also disabled on Ubuntu I believe:

ufw status
Status: inactive

Further investigations show from the router itself I can only ping a few machines not sure what this means but from the Ubuntu box i can ping different machines.

Ping out of Ubuntu 18.04
192.168.1.6 > 192.168.1.20 Ping OK
192.168.1.6 > 192.168.1.254 No Ping
192.168.1.6 > 192.168.1.1 Ping Ok
192.168.1.6 > 192.168.1.53 No Ping

Ping out of Router (Draytek 2960)
192.168.1.254 > 192.168.1.20 No Ping
192.168.1.254 > 192.168.1.6 No Ping
192.168.1.254 > 192.168.1.1 Ping OK
192.168.1.254 > 192.168.1.53 No Ping

Ping out of my Windows Machines
192.168.1.53 > 192.168.1.20 Ping OK
192.168.1.53 > 192.168.1.6 Ping OK
192.168.1.53 > 192.168.1.254 Ping OK
192.168.1.53 > 192.168.1.1 Ping OK

So Windows machine seems happy just some devices non windows ones don't seem to be playing ball with router. The 1.20 is a printer and 1.1 the main domain server here.

TCPDUMP results:

sudo tcpdump -i eth0 icmp
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
12:38:12.353881 IP 192.168.1.53 > 192.168.1.6: ICMP echo request, id 1, seq 25, length 40
12:38:12.353922 IP 192.168.1.6 > 192.168.1.53: ICMP echo reply, id 1, seq 25, length 40
12:38:13.357746 IP 192.168.1.53 > 192.168.1.6: ICMP echo request, id 1, seq 26, length 40
12:38:13.357769 IP 192.168.1.6 > 192.168.1.53: ICMP echo reply, id 1, seq 26, length 40
12:38:14.365890 IP 192.168.1.53 > 192.168.1.6: ICMP echo request, id 1, seq 27, length 40
12:38:14.365917 IP 192.168.1.6 > 192.168.1.53: ICMP echo reply, id 1, seq 27, length 40
12:38:15.372843 IP 192.168.1.53 > 192.168.1.6: ICMP echo request, id 1, seq 28, length 40
12:38:50.417412 IP 192.168.1.254 > 192.168.1.6: ICMP echo request, id 40319, seq 0, length 64
12:38:51.417819 IP 192.168.1.254 > 192.168.1.6: ICMP echo request, id 40319, seq 1, length 64
12:38:52.418246 IP 192.168.1.254 > 192.168.1.6: ICMP echo request, id 40319, seq 2, length 64
12:38:53.418592 IP 192.168.1.254 > 192.168.1.6: ICMP echo request, id 40319, seq 3, length 64
12:38:54.419015 IP 192.168.1.254 > 192.168.1.6: ICMP echo request, id 40319, seq 4, length 64
12:46:36.801414 IP 192.168.1.6 > 192.168.1.53: ICMP echo request, id 28880, seq 1, length 64
12:46:37.801809 IP 192.168.1.6 > 192.168.1.53: ICMP echo request, id 28880, seq 2, length 64
12:46:38.821929 IP 192.168.1.6 > 192.168.1.53: ICMP echo request, id 28880, seq 3, length 64
12:46:39.845948 IP 192.168.1.6 > 192.168.1.53: ICMP echo request, id 28880, seq 4, length 64
12:46:40.869947 IP 192.168.1.6 > 192.168.1.53: ICMP echo request, id 28880, seq 5, length 64
12:46:41.869836 IP 192.168.1.6 > 192.168.1.53: ICMP echo request, id 28880, seq 6, length 64

First was from Windows to the Ubuntu Box. Then from Router to Ubuntu box. I did try from Ubuntu box to the router however nothing shows in TCPDUMP. The next was from Ubuntu box to Windows machine and requests can be seen going out although no replies as ICMP probably blocked on Windows Defender Firewall.

Any recommendations of what to try here as am out of ideas myself and none of the above makes much sense as to why different devices are PINGABLE from each machine and SSH and PING HTTP all seem to work / not work depending on source?

tcpdump -i eth0 arp -n

14:32:29.414036 ARP, Request who-has 192.168.1.254 tell 192.168.1.6, length 28
14:32:29.414274 ARP, Reply 192.168.1.254 is-at 00:1d:aa:c6:44:68, length 42
14:32:29.852626 ARP, Request who-has 192.168.1.200 tell 192.168.1.1, length 46
14:32:29.852643 ARP, Request who-has 192.168.1.58 tell 192.168.1.1, length 46
14:32:30.437906 ARP, Request who-has 192.168.1.254 tell 192.168.1.6, length 28
14:32:30.438138 ARP, Reply 192.168.1.254 is-at 00:1d:aa:c6:44:68, length 42
14:32:31.461904 ARP, Request who-has 192.168.1.254 tell 192.168.1.6, length 28
14:32:31.462138 ARP, Reply 192.168.1.254 is-at 00:1d:aa:c6:44:68, length 42
14:32:32.486027 ARP, Request who-has 192.168.1.254 tell 192.168.1.6, length 28
14:32:32.486250 ARP, Reply 192.168.1.254 is-at 00:1d:aa:c6:44:68, length 42
14:32:33.513904 ARP, Request who-has 192.168.1.254 tell 192.168.1.6, length 28
14:32:33.514218 ARP, Reply 192.168.1.254 is-at 00:1d:aa:c6:44:68, length 42
14:32:33.944646 ARP, Request who-has 192.168.1.70 tell 192.168.1.253, length 46
14:32:34.533906 ARP, Request who-has 192.168.1.254 tell 192.168.1.6, length 28
14:32:34.534222 ARP, Reply 192.168.1.254 is-at 00:1d:aa:c6:44:68, length 42
14:32:35.557980 ARP, Request who-has 192.168.1.254 tell 192.168.1.6, length 28
14:32:35.558187 ARP, Reply 192.168.1.254 is-at 00:1d:aa:c6:44:68, length 42
183 packets captured
200 packets received by filter
17 packets dropped by kernel

Mac address of router seems correct with 00:1d:aa:c6:44:68. A lot of the requests however do not show a reply not sure if this is correct?

There are however these showing:

14:55:29.130114 ARP, Unknown (512)
    0x0000:  0001 0800 0604 0200 001d aac6 4468 c0a8  ............Dh..
    0x0010:  01fe ffff ffff ffff 0000 0000 0100 0000  ................
    0x0020:  0000 0000 0000 0000 0000                 ..........
14:55:29.130427 ARP, Unknown (512)
    0x0000:  0001 0800 0604 0200 001d aac6 4468 c0a8  ............Dh..
    0x0010:  02fe ffff ffff ffff 0000 0000 0100 0000  ................
    0x0020:  0000 0000 0000 0000 0000 

tcpdump -eqtnni eth0 arp

08:60:6e:e5:e5:8b > ff:ff:ff:ff:ff:ff, ARP, length 42: Request who-has 192.168.1.254 tell 192.168.1.6, length 28
00:1d:aa:c6:44:68 > 08:60:6e:e5:e5:8b, 802.1Q, length 60: vlan 1, p 0, ethertype ARP, Reply 192.168.1.254 is-at 00:1d:aa:c6:44:68, length 42
08:60:6e:e5:e5:8b > ff:ff:ff:ff:ff:ff, ARP, length 42: Request who-has 192.168.1.254 tell 192.168.1.6, length 28
00:1d:aa:c6:44:68 > 08:60:6e:e5:e5:8b, 802.1Q, length 60: vlan 1, p 0, ethertype ARP, Reply 192.168.1.254 is-at 00:1d:aa:c6:44:68, length 42
00:1d:aa:c6:44:68 > ff:ff:ff:ff:ff:ff, 802.1Q, length 60: vlan 1, p 0, ethertype ARP, Unknown (512)

I have an issue with a Magento 2 store not setting the from path and from name for some reason.

After a few hours of debugging I have decided to work around it temporarily while i figure out the main issue. I have however multiple site instance and need to set the sendmail values per store in their vhosts.

So far i have set the from path correctly with the below in my httpd.conf:

php_admin_value sendmail_path "/usr/sbin/sendmail [email protected] -t -i"

What is the equivalent for the from name e.g Website Sales?

I am a bit confused about varnish cache and not quite sure about what is going on. I seem to have it set up my mage loads reasonably quick on first load ~800ms request. Now that it is warmed it requests drop to 1ms which seems great. However when i visit that same warmed page on another browser / computer speeds seem to drop back down to the initial visit speed.

I am trying to warm the cache with a script on the server but it doesn't seem to be making a difference. What have i done wrong with the configuration here?